./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test1-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 47ea0209 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b29e58-9455-4c33-b0f3-e97ee65d4184/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b29e58-9455-4c33-b0f3-e97ee65d4184/bin/utaipan-UUZaoUuFF8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b29e58-9455-4c33-b0f3-e97ee65d4184/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b29e58-9455-4c33-b0f3-e97ee65d4184/bin/utaipan-UUZaoUuFF8/config/TaipanReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test1-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b29e58-9455-4c33-b0f3-e97ee65d4184/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b29e58-9455-4c33-b0f3-e97ee65d4184/bin/utaipan-UUZaoUuFF8 --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 7f552e336cb6eb3ea16ba25a84411e1d0c8dcfaa2b088c21df87ffefed1a84a7 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 00:53:21,333 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 00:53:21,336 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 00:53:21,370 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 00:53:21,370 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 00:53:21,372 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 00:53:21,374 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 00:53:21,376 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 00:53:21,378 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 00:53:21,380 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 00:53:21,381 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 00:53:21,383 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 00:53:21,384 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 00:53:21,385 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 00:53:21,387 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 00:53:21,389 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 00:53:21,390 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 00:53:21,392 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 00:53:21,394 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 00:53:21,397 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 00:53:21,399 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 00:53:21,401 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 00:53:21,403 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 00:53:21,404 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 00:53:21,408 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 00:53:21,409 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 00:53:21,409 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 00:53:21,410 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 00:53:21,411 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 00:53:21,412 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 00:53:21,413 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 00:53:21,414 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 00:53:21,415 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 00:53:21,416 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 00:53:21,418 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 00:53:21,418 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 00:53:21,420 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 00:53:21,422 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 00:53:21,423 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 00:53:21,424 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 00:53:21,426 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 00:53:21,427 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b29e58-9455-4c33-b0f3-e97ee65d4184/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-07 00:53:21,455 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 00:53:21,455 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 00:53:21,456 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 00:53:21,457 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 00:53:21,457 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 00:53:21,457 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 00:53:21,457 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-07 00:53:21,457 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 00:53:21,458 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 00:53:21,458 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-07 00:53:21,458 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-07 00:53:21,458 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 00:53:21,459 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-07 00:53:21,459 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-07 00:53:21,459 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-07 00:53:21,460 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 00:53:21,460 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-07 00:53:21,460 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 00:53:21,461 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-07 00:53:21,461 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 00:53:21,461 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 00:53:21,461 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 00:53:21,461 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 00:53:21,462 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 00:53:21,462 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-07 00:53:21,462 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 00:53:21,462 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 00:53:21,463 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 00:53:21,463 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 00:53:21,463 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 00:53:21,463 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 00:53:21,464 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 00:53:21,464 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 00:53:21,464 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 00:53:21,464 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-07 00:53:21,464 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 00:53:21,465 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 00:53:21,465 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 00:53:21,465 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 00:53:21,465 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_04b29e58-9455-4c33-b0f3-e97ee65d4184/bin/utaipan-UUZaoUuFF8/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b29e58-9455-4c33-b0f3-e97ee65d4184/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7f552e336cb6eb3ea16ba25a84411e1d0c8dcfaa2b088c21df87ffefed1a84a7 [2021-11-07 00:53:21,700 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 00:53:21,726 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 00:53:21,728 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 00:53:21,730 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 00:53:21,731 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 00:53:21,731 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b29e58-9455-4c33-b0f3-e97ee65d4184/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test1-2.i [2021-11-07 00:53:21,793 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b29e58-9455-4c33-b0f3-e97ee65d4184/bin/utaipan-UUZaoUuFF8/data/eba2e63c1/f31d2d3147d8481f859fe1317386500d/FLAG9e8b9153f [2021-11-07 00:53:22,389 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 00:53:22,389 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b29e58-9455-4c33-b0f3-e97ee65d4184/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test1-2.i [2021-11-07 00:53:22,413 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b29e58-9455-4c33-b0f3-e97ee65d4184/bin/utaipan-UUZaoUuFF8/data/eba2e63c1/f31d2d3147d8481f859fe1317386500d/FLAG9e8b9153f [2021-11-07 00:53:22,667 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b29e58-9455-4c33-b0f3-e97ee65d4184/bin/utaipan-UUZaoUuFF8/data/eba2e63c1/f31d2d3147d8481f859fe1317386500d [2021-11-07 00:53:22,670 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 00:53:22,671 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 00:53:22,677 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 00:53:22,678 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 00:53:22,681 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 00:53:22,682 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:53:22" (1/1) ... [2021-11-07 00:53:22,685 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@73d0a33 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:53:22, skipping insertion in model container [2021-11-07 00:53:22,685 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:53:22" (1/1) ... [2021-11-07 00:53:22,691 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 00:53:22,749 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 00:53:23,235 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_04b29e58-9455-4c33-b0f3-e97ee65d4184/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test1-2.i[33021,33034] [2021-11-07 00:53:23,382 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 00:53:23,392 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2021-11-07 00:53:23,393 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@65030e10 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:53:23, skipping insertion in model container [2021-11-07 00:53:23,393 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 00:53:23,394 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-07 00:53:23,396 INFO L168 Benchmark]: Toolchain (without parser) took 723.56 ms. Allocated memory was 94.4 MB in the beginning and 125.8 MB in the end (delta: 31.5 MB). Free memory was 61.7 MB in the beginning and 93.4 MB in the end (delta: -31.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-11-07 00:53:23,397 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 94.4 MB. Free memory is still 47.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 00:53:23,398 INFO L168 Benchmark]: CACSL2BoogieTranslator took 716.13 ms. Allocated memory was 94.4 MB in the beginning and 125.8 MB in the end (delta: 31.5 MB). Free memory was 61.5 MB in the beginning and 93.4 MB in the end (delta: -32.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-11-07 00:53:23,399 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 94.4 MB. Free memory is still 47.7 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 716.13 ms. Allocated memory was 94.4 MB in the beginning and 125.8 MB in the end (delta: 31.5 MB). Free memory was 61.5 MB in the beginning and 93.4 MB in the end (delta: -32.0 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: 751]: 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_04b29e58-9455-4c33-b0f3-e97ee65d4184/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b29e58-9455-4c33-b0f3-e97ee65d4184/bin/utaipan-UUZaoUuFF8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b29e58-9455-4c33-b0f3-e97ee65d4184/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b29e58-9455-4c33-b0f3-e97ee65d4184/bin/utaipan-UUZaoUuFF8/config/TaipanReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test1-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b29e58-9455-4c33-b0f3-e97ee65d4184/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b29e58-9455-4c33-b0f3-e97ee65d4184/bin/utaipan-UUZaoUuFF8 --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 7f552e336cb6eb3ea16ba25a84411e1d0c8dcfaa2b088c21df87ffefed1a84a7 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 00:53:25,692 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 00:53:25,696 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 00:53:25,731 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 00:53:25,732 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 00:53:25,733 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 00:53:25,735 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 00:53:25,737 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 00:53:25,739 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 00:53:25,741 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 00:53:25,742 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 00:53:25,743 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 00:53:25,744 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 00:53:25,745 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 00:53:25,747 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 00:53:25,748 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 00:53:25,749 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 00:53:25,750 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 00:53:25,752 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 00:53:25,755 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 00:53:25,756 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 00:53:25,758 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 00:53:25,759 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 00:53:25,760 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 00:53:25,764 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 00:53:25,764 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 00:53:25,765 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 00:53:25,766 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 00:53:25,766 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 00:53:25,768 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 00:53:25,768 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 00:53:25,769 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 00:53:25,770 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 00:53:25,771 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 00:53:25,776 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 00:53:25,777 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 00:53:25,778 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 00:53:25,779 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 00:53:25,779 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 00:53:25,780 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 00:53:25,782 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 00:53:25,783 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b29e58-9455-4c33-b0f3-e97ee65d4184/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-11-07 00:53:25,826 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 00:53:25,827 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 00:53:25,828 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 00:53:25,829 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 00:53:25,829 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 00:53:25,829 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 00:53:25,829 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 00:53:25,829 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 00:53:25,830 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 00:53:25,832 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 00:53:25,833 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-07 00:53:25,833 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-07 00:53:25,833 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 00:53:25,833 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 00:53:25,834 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 00:53:25,834 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 00:53:25,834 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 00:53:25,834 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-07 00:53:25,834 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-07 00:53:25,835 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-07 00:53:25,835 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 00:53:25,835 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 00:53:25,835 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 00:53:25,836 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 00:53:25,836 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 00:53:25,836 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 00:53:25,836 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 00:53:25,836 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 00:53:25,837 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 00:53:25,837 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 00:53:25,837 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-07 00:53:25,837 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-07 00:53:25,838 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 00:53:25,838 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 00:53:25,838 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 00:53:25,838 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_04b29e58-9455-4c33-b0f3-e97ee65d4184/bin/utaipan-UUZaoUuFF8/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b29e58-9455-4c33-b0f3-e97ee65d4184/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7f552e336cb6eb3ea16ba25a84411e1d0c8dcfaa2b088c21df87ffefed1a84a7 [2021-11-07 00:53:26,240 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 00:53:26,263 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 00:53:26,266 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 00:53:26,267 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 00:53:26,268 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 00:53:26,269 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b29e58-9455-4c33-b0f3-e97ee65d4184/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test1-2.i [2021-11-07 00:53:26,342 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b29e58-9455-4c33-b0f3-e97ee65d4184/bin/utaipan-UUZaoUuFF8/data/863e9b16f/61ac2da2735d4a0b818c4aa52d990e9e/FLAG41d1e2d41 [2021-11-07 00:53:26,999 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 00:53:26,999 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b29e58-9455-4c33-b0f3-e97ee65d4184/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test1-2.i [2021-11-07 00:53:27,022 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b29e58-9455-4c33-b0f3-e97ee65d4184/bin/utaipan-UUZaoUuFF8/data/863e9b16f/61ac2da2735d4a0b818c4aa52d990e9e/FLAG41d1e2d41 [2021-11-07 00:53:27,266 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b29e58-9455-4c33-b0f3-e97ee65d4184/bin/utaipan-UUZaoUuFF8/data/863e9b16f/61ac2da2735d4a0b818c4aa52d990e9e [2021-11-07 00:53:27,269 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 00:53:27,270 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 00:53:27,271 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 00:53:27,272 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 00:53:27,288 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 00:53:27,288 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:53:27" (1/1) ... [2021-11-07 00:53:27,290 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@52a51e69 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:53:27, skipping insertion in model container [2021-11-07 00:53:27,290 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:53:27" (1/1) ... [2021-11-07 00:53:27,297 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 00:53:27,371 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 00:53:27,863 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_04b29e58-9455-4c33-b0f3-e97ee65d4184/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test1-2.i[33021,33034] [2021-11-07 00:53:28,046 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 00:53:28,059 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-07 00:53:28,095 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 00:53:28,122 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_04b29e58-9455-4c33-b0f3-e97ee65d4184/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test1-2.i[33021,33034] [2021-11-07 00:53:28,222 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 00:53:28,237 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 00:53:28,281 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_04b29e58-9455-4c33-b0f3-e97ee65d4184/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test1-2.i[33021,33034] [2021-11-07 00:53:28,355 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 00:53:28,411 INFO L208 MainTranslator]: Completed translation [2021-11-07 00:53:28,411 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:53:28 WrapperNode [2021-11-07 00:53:28,411 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 00:53:28,412 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 00:53:28,413 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 00:53:28,413 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 00:53:28,420 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:53:28" (1/1) ... [2021-11-07 00:53:28,452 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:53:28" (1/1) ... [2021-11-07 00:53:28,521 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 00:53:28,522 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 00:53:28,522 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 00:53:28,522 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 00:53:28,531 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:53:28" (1/1) ... [2021-11-07 00:53:28,531 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:53:28" (1/1) ... [2021-11-07 00:53:28,541 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:53:28" (1/1) ... [2021-11-07 00:53:28,550 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:53:28" (1/1) ... [2021-11-07 00:53:28,624 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:53:28" (1/1) ... [2021-11-07 00:53:28,639 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:53:28" (1/1) ... [2021-11-07 00:53:28,644 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:53:28" (1/1) ... [2021-11-07 00:53:28,681 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 00:53:28,682 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 00:53:28,682 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 00:53:28,682 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 00:53:28,684 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:53:28" (1/1) ... [2021-11-07 00:53:28,698 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 00:53:28,714 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b29e58-9455-4c33-b0f3-e97ee65d4184/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 00:53:28,734 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b29e58-9455-4c33-b0f3-e97ee65d4184/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-07 00:53:28,768 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b29e58-9455-4c33-b0f3-e97ee65d4184/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-07 00:53:28,784 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-07 00:53:28,785 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-07 00:53:28,787 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-07 00:53:28,787 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-07 00:53:28,788 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 00:53:28,788 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-07 00:53:28,789 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-07 00:53:28,789 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-07 00:53:28,789 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-07 00:53:28,789 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 00:53:28,789 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 00:53:34,558 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 00:53:34,562 INFO L299 CfgBuilder]: Removed 72 assume(true) statements. [2021-11-07 00:53:34,568 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:53:34 BoogieIcfgContainer [2021-11-07 00:53:34,569 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 00:53:34,571 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 00:53:34,571 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 00:53:34,574 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 00:53:34,574 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 12:53:27" (1/3) ... [2021-11-07 00:53:34,575 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e510ecf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:53:34, skipping insertion in model container [2021-11-07 00:53:34,575 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:53:28" (2/3) ... [2021-11-07 00:53:34,576 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e510ecf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:53:34, skipping insertion in model container [2021-11-07 00:53:34,576 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:53:34" (3/3) ... [2021-11-07 00:53:34,580 INFO L111 eAbstractionObserver]: Analyzing ICFG uthash_SAX_test1-2.i [2021-11-07 00:53:34,585 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 00:53:34,585 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations. [2021-11-07 00:53:34,637 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 00:53:34,643 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 [2021-11-07 00:53:34,644 INFO L340 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2021-11-07 00:53:34,662 INFO L276 IsEmpty]: Start isEmpty. Operand has 167 states, 156 states have (on average 1.7307692307692308) internal successors, (270), 166 states have internal predecessors, (270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 00:53:34,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-07 00:53:34,668 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 00:53:34,669 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 00:53:34,669 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2021-11-07 00:53:34,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 00:53:34,675 INFO L85 PathProgramCache]: Analyzing trace with hash -1407226647, now seen corresponding path program 1 times [2021-11-07 00:53:34,686 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 00:53:34,687 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1300446065] [2021-11-07 00:53:34,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 00:53:34,688 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 00:53:34,688 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b29e58-9455-4c33-b0f3-e97ee65d4184/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 00:53:34,691 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b29e58-9455-4c33-b0f3-e97ee65d4184/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 00:53:34,702 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b29e58-9455-4c33-b0f3-e97ee65d4184/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-07 00:53:34,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 00:53:34,833 INFO L263 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-07 00:53:34,838 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 00:53:34,883 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 00:53:34,884 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 00:53:34,908 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 00:53:34,909 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 00:53:34,909 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1300446065] [2021-11-07 00:53:34,910 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1300446065] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 00:53:34,910 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 00:53:34,910 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-07 00:53:34,912 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1292485] [2021-11-07 00:53:34,916 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-07 00:53:34,917 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 00:53:34,929 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-07 00:53:34,929 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-07 00:53:34,932 INFO L87 Difference]: Start difference. First operand has 167 states, 156 states have (on average 1.7307692307692308) internal successors, (270), 166 states have internal predecessors, (270), 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 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 00:53:34,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 00:53:34,963 INFO L93 Difference]: Finished difference Result 332 states and 538 transitions. [2021-11-07 00:53:34,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-07 00:53:34,965 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2021-11-07 00:53:34,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 00:53:34,975 INFO L225 Difference]: With dead ends: 332 [2021-11-07 00:53:34,976 INFO L226 Difference]: Without dead ends: 134 [2021-11-07 00:53:34,979 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-07 00:53:34,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2021-11-07 00:53:35,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 134. [2021-11-07 00:53:35,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 134 states, 124 states have (on average 1.3870967741935485) internal successors, (172), 133 states have internal predecessors, (172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 00:53:35,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 172 transitions. [2021-11-07 00:53:35,022 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 172 transitions. Word has length 8 [2021-11-07 00:53:35,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 00:53:35,023 INFO L470 AbstractCegarLoop]: Abstraction has 134 states and 172 transitions. [2021-11-07 00:53:35,024 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 00:53:35,024 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 172 transitions. [2021-11-07 00:53:35,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-07 00:53:35,025 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 00:53:35,038 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 00:53:35,057 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b29e58-9455-4c33-b0f3-e97ee65d4184/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-07 00:53:35,258 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b29e58-9455-4c33-b0f3-e97ee65d4184/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 00:53:35,259 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2021-11-07 00:53:35,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 00:53:35,259 INFO L85 PathProgramCache]: Analyzing trace with hash 569968710, now seen corresponding path program 1 times [2021-11-07 00:53:35,260 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 00:53:35,260 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1712921702] [2021-11-07 00:53:35,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 00:53:35,261 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 00:53:35,261 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b29e58-9455-4c33-b0f3-e97ee65d4184/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 00:53:35,262 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b29e58-9455-4c33-b0f3-e97ee65d4184/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 00:53:35,265 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b29e58-9455-4c33-b0f3-e97ee65d4184/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-07 00:53:35,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 00:53:35,397 INFO L263 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 00:53:35,398 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 00:53:35,461 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 00:53:35,462 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 00:53:35,503 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 00:53:35,504 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 00:53:35,504 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1712921702] [2021-11-07 00:53:35,505 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1712921702] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 00:53:35,505 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 00:53:35,506 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-07 00:53:35,506 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [962552652] [2021-11-07 00:53:35,508 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 00:53:35,508 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 00:53:35,511 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 00:53:35,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 00:53:35,512 INFO L87 Difference]: Start difference. First operand 134 states and 172 transitions. Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 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) [2021-11-07 00:53:35,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 00:53:35,747 INFO L93 Difference]: Finished difference Result 267 states and 344 transitions. [2021-11-07 00:53:35,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 00:53:35,749 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 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 8 [2021-11-07 00:53:35,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 00:53:35,752 INFO L225 Difference]: With dead ends: 267 [2021-11-07 00:53:35,755 INFO L226 Difference]: Without dead ends: 222 [2021-11-07 00:53:35,756 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 00:53:35,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 222 states. [2021-11-07 00:53:35,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 222 to 222. [2021-11-07 00:53:35,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 222 states, 212 states have (on average 1.3537735849056605) internal successors, (287), 221 states have internal predecessors, (287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 00:53:35,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 287 transitions. [2021-11-07 00:53:35,789 INFO L78 Accepts]: Start accepts. Automaton has 222 states and 287 transitions. Word has length 8 [2021-11-07 00:53:35,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 00:53:35,790 INFO L470 AbstractCegarLoop]: Abstraction has 222 states and 287 transitions. [2021-11-07 00:53:35,790 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 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) [2021-11-07 00:53:35,790 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states and 287 transitions. [2021-11-07 00:53:35,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2021-11-07 00:53:35,795 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 00:53:35,796 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 00:53:35,811 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b29e58-9455-4c33-b0f3-e97ee65d4184/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-07 00:53:36,011 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b29e58-9455-4c33-b0f3-e97ee65d4184/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 00:53:36,011 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2021-11-07 00:53:36,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 00:53:36,012 INFO L85 PathProgramCache]: Analyzing trace with hash 2050695974, now seen corresponding path program 1 times [2021-11-07 00:53:36,014 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 00:53:36,014 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [809248237] [2021-11-07 00:53:36,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 00:53:36,015 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 00:53:36,015 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b29e58-9455-4c33-b0f3-e97ee65d4184/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 00:53:36,016 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b29e58-9455-4c33-b0f3-e97ee65d4184/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 00:53:36,049 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b29e58-9455-4c33-b0f3-e97ee65d4184/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-07 00:53:36,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 00:53:36,387 INFO L263 TraceCheckSpWp]: Trace formula consists of 268 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-07 00:53:36,392 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 00:53:36,723 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2021-11-07 00:53:36,724 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 00:53:37,088 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2021-11-07 00:53:37,089 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 00:53:37,089 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [809248237] [2021-11-07 00:53:37,089 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [809248237] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 00:53:37,089 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 00:53:37,090 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 5 [2021-11-07 00:53:37,090 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1422496930] [2021-11-07 00:53:37,091 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 00:53:37,091 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 00:53:37,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 00:53:37,092 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-07 00:53:37,092 INFO L87 Difference]: Start difference. First operand 222 states and 287 transitions. Second operand has 5 states, 5 states have (on average 14.2) internal successors, (71), 5 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 00:53:37,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 00:53:37,220 INFO L93 Difference]: Finished difference Result 444 states and 580 transitions. [2021-11-07 00:53:37,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 00:53:37,221 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 5 states have internal predecessors, (71), 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 110 [2021-11-07 00:53:37,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 00:53:37,223 INFO L225 Difference]: With dead ends: 444 [2021-11-07 00:53:37,223 INFO L226 Difference]: Without dead ends: 230 [2021-11-07 00:53:37,225 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 219 GetRequests, 215 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-07 00:53:37,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 230 states. [2021-11-07 00:53:37,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 230 to 228. [2021-11-07 00:53:37,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 228 states, 218 states have (on average 1.2706422018348624) internal successors, (277), 227 states have internal predecessors, (277), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 00:53:37,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 228 states and 277 transitions. [2021-11-07 00:53:37,239 INFO L78 Accepts]: Start accepts. Automaton has 228 states and 277 transitions. Word has length 110 [2021-11-07 00:53:37,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 00:53:37,240 INFO L470 AbstractCegarLoop]: Abstraction has 228 states and 277 transitions. [2021-11-07 00:53:37,240 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 5 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 00:53:37,240 INFO L276 IsEmpty]: Start isEmpty. Operand 228 states and 277 transitions. [2021-11-07 00:53:37,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2021-11-07 00:53:37,245 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 00:53:37,245 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 00:53:37,264 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b29e58-9455-4c33-b0f3-e97ee65d4184/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-07 00:53:37,459 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b29e58-9455-4c33-b0f3-e97ee65d4184/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 00:53:37,459 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2021-11-07 00:53:37,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 00:53:37,460 INFO L85 PathProgramCache]: Analyzing trace with hash 1601617830, now seen corresponding path program 1 times [2021-11-07 00:53:37,461 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 00:53:37,461 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1612384990] [2021-11-07 00:53:37,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 00:53:37,462 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 00:53:37,462 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b29e58-9455-4c33-b0f3-e97ee65d4184/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 00:53:37,465 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b29e58-9455-4c33-b0f3-e97ee65d4184/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 00:53:37,472 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b29e58-9455-4c33-b0f3-e97ee65d4184/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-07 00:53:37,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 00:53:37,864 INFO L263 TraceCheckSpWp]: Trace formula consists of 256 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-07 00:53:37,869 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 00:53:38,308 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2021-11-07 00:53:38,309 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 00:53:39,096 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2021-11-07 00:53:39,097 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 00:53:39,097 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1612384990] [2021-11-07 00:53:39,097 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1612384990] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 00:53:39,097 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 00:53:39,097 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 7] imperfect sequences [] total 9 [2021-11-07 00:53:39,098 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1064941050] [2021-11-07 00:53:39,098 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-07 00:53:39,098 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 00:53:39,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-07 00:53:39,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2021-11-07 00:53:39,100 INFO L87 Difference]: Start difference. First operand 228 states and 277 transitions. Second operand has 9 states, 9 states have (on average 12.333333333333334) internal successors, (111), 9 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 00:53:39,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 00:53:39,218 INFO L93 Difference]: Finished difference Result 413 states and 507 transitions. [2021-11-07 00:53:39,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 00:53:39,219 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.333333333333334) internal successors, (111), 9 states have internal predecessors, (111), 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 110 [2021-11-07 00:53:39,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 00:53:39,220 INFO L225 Difference]: With dead ends: 413 [2021-11-07 00:53:39,221 INFO L226 Difference]: Without dead ends: 216 [2021-11-07 00:53:39,222 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 218 GetRequests, 211 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2021-11-07 00:53:39,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 216 states. [2021-11-07 00:53:39,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 216 to 216. [2021-11-07 00:53:39,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 216 states, 206 states have (on average 1.2475728155339805) internal successors, (257), 215 states have internal predecessors, (257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 00:53:39,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 257 transitions. [2021-11-07 00:53:39,233 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 257 transitions. Word has length 110 [2021-11-07 00:53:39,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 00:53:39,233 INFO L470 AbstractCegarLoop]: Abstraction has 216 states and 257 transitions. [2021-11-07 00:53:39,234 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.333333333333334) internal successors, (111), 9 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 00:53:39,234 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 257 transitions. [2021-11-07 00:53:39,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2021-11-07 00:53:39,236 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 00:53:39,236 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 00:53:39,261 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b29e58-9455-4c33-b0f3-e97ee65d4184/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-07 00:53:39,457 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b29e58-9455-4c33-b0f3-e97ee65d4184/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 00:53:39,457 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2021-11-07 00:53:39,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 00:53:39,458 INFO L85 PathProgramCache]: Analyzing trace with hash 1357916902, now seen corresponding path program 1 times [2021-11-07 00:53:39,459 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 00:53:39,459 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [167757148] [2021-11-07 00:53:39,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 00:53:39,460 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 00:53:39,460 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b29e58-9455-4c33-b0f3-e97ee65d4184/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 00:53:39,461 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b29e58-9455-4c33-b0f3-e97ee65d4184/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 00:53:39,479 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b29e58-9455-4c33-b0f3-e97ee65d4184/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-07 00:53:39,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 00:53:39,920 INFO L263 TraceCheckSpWp]: Trace formula consists of 258 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-07 00:53:39,925 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 00:53:40,432 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 37 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-11-07 00:53:40,433 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 00:53:40,950 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 37 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-11-07 00:53:40,950 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 00:53:40,950 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [167757148] [2021-11-07 00:53:40,950 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [167757148] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 00:53:40,951 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 00:53:40,951 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-07 00:53:40,951 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1656838891] [2021-11-07 00:53:40,952 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 00:53:40,952 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 00:53:40,952 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 00:53:40,953 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 00:53:40,953 INFO L87 Difference]: Start difference. First operand 216 states and 257 transitions. Second operand has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 00:53:41,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 00:53:41,253 INFO L93 Difference]: Finished difference Result 383 states and 462 transitions. [2021-11-07 00:53:41,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 00:53:41,254 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 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 110 [2021-11-07 00:53:41,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 00:53:41,255 INFO L225 Difference]: With dead ends: 383 [2021-11-07 00:53:41,255 INFO L226 Difference]: Without dead ends: 214 [2021-11-07 00:53:41,255 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 218 GetRequests, 217 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 00:53:41,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214 states. [2021-11-07 00:53:41,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214 to 214. [2021-11-07 00:53:41,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 214 states, 204 states have (on average 1.2450980392156863) internal successors, (254), 213 states have internal predecessors, (254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 00:53:41,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 254 transitions. [2021-11-07 00:53:41,264 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 254 transitions. Word has length 110 [2021-11-07 00:53:41,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 00:53:41,265 INFO L470 AbstractCegarLoop]: Abstraction has 214 states and 254 transitions. [2021-11-07 00:53:41,265 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 00:53:41,265 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 254 transitions. [2021-11-07 00:53:41,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2021-11-07 00:53:41,267 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 00:53:41,268 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 00:53:41,310 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b29e58-9455-4c33-b0f3-e97ee65d4184/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-07 00:53:41,485 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b29e58-9455-4c33-b0f3-e97ee65d4184/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 00:53:41,485 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2021-11-07 00:53:41,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 00:53:41,485 INFO L85 PathProgramCache]: Analyzing trace with hash 1177328342, now seen corresponding path program 1 times [2021-11-07 00:53:41,486 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 00:53:41,486 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [538281828] [2021-11-07 00:53:41,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 00:53:41,487 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 00:53:41,487 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b29e58-9455-4c33-b0f3-e97ee65d4184/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 00:53:41,491 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b29e58-9455-4c33-b0f3-e97ee65d4184/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 00:53:41,492 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b29e58-9455-4c33-b0f3-e97ee65d4184/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-07 00:53:41,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 00:53:42,011 INFO L263 TraceCheckSpWp]: Trace formula consists of 310 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-07 00:53:42,016 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 00:53:42,321 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 37 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-11-07 00:53:42,321 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 00:53:42,635 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 37 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-11-07 00:53:42,635 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 00:53:42,635 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [538281828] [2021-11-07 00:53:42,636 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [538281828] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 00:53:42,636 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 00:53:42,636 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-07 00:53:42,636 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1471262029] [2021-11-07 00:53:42,637 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 00:53:42,637 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 00:53:42,637 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 00:53:42,638 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 00:53:42,638 INFO L87 Difference]: Start difference. First operand 214 states and 254 transitions. Second operand has 4 states, 4 states have (on average 26.5) internal successors, (106), 4 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 00:53:42,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 00:53:42,690 INFO L93 Difference]: Finished difference Result 393 states and 478 transitions. [2021-11-07 00:53:42,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 00:53:42,691 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 26.5) internal successors, (106), 4 states have internal predecessors, (106), 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 117 [2021-11-07 00:53:42,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 00:53:42,693 INFO L225 Difference]: With dead ends: 393 [2021-11-07 00:53:42,693 INFO L226 Difference]: Without dead ends: 220 [2021-11-07 00:53:42,694 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 232 GetRequests, 230 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 00:53:42,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states. [2021-11-07 00:53:42,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 220. [2021-11-07 00:53:42,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 220 states, 210 states have (on average 1.2380952380952381) internal successors, (260), 219 states have internal predecessors, (260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 00:53:42,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 260 transitions. [2021-11-07 00:53:42,706 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 260 transitions. Word has length 117 [2021-11-07 00:53:42,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 00:53:42,708 INFO L470 AbstractCegarLoop]: Abstraction has 220 states and 260 transitions. [2021-11-07 00:53:42,709 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.5) internal successors, (106), 4 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 00:53:42,709 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 260 transitions. [2021-11-07 00:53:42,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2021-11-07 00:53:42,719 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 00:53:42,719 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 00:53:42,742 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b29e58-9455-4c33-b0f3-e97ee65d4184/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-07 00:53:42,938 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b29e58-9455-4c33-b0f3-e97ee65d4184/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 00:53:42,939 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2021-11-07 00:53:42,939 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 00:53:42,939 INFO L85 PathProgramCache]: Analyzing trace with hash 1351948363, now seen corresponding path program 1 times [2021-11-07 00:53:42,940 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 00:53:42,940 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1208421113] [2021-11-07 00:53:42,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 00:53:42,940 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 00:53:42,940 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b29e58-9455-4c33-b0f3-e97ee65d4184/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 00:53:42,941 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b29e58-9455-4c33-b0f3-e97ee65d4184/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 00:53:42,942 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b29e58-9455-4c33-b0f3-e97ee65d4184/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-07 00:53:43,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 00:53:43,613 INFO L263 TraceCheckSpWp]: Trace formula consists of 325 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-07 00:53:43,617 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 00:53:43,982 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 37 proven. 3 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-07 00:53:43,982 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 00:53:44,351 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 37 proven. 3 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-07 00:53:44,352 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 00:53:44,352 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1208421113] [2021-11-07 00:53:44,352 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1208421113] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-07 00:53:44,352 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1636108639] [2021-11-07 00:53:44,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 00:53:44,352 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-07 00:53:44,352 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b29e58-9455-4c33-b0f3-e97ee65d4184/bin/utaipan-UUZaoUuFF8/cvc4 [2021-11-07 00:53:44,354 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b29e58-9455-4c33-b0f3-e97ee65d4184/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-07 00:53:44,355 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b29e58-9455-4c33-b0f3-e97ee65d4184/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (9)] Waiting until timeout for monitored process [2021-11-07 00:53:45,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 00:53:45,202 INFO L263 TraceCheckSpWp]: Trace formula consists of 325 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-07 00:53:45,205 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 00:53:45,544 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 37 proven. 3 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-07 00:53:45,544 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 00:53:45,853 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 37 proven. 3 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-07 00:53:45,853 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1636108639] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-07 00:53:45,853 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1680295028] [2021-11-07 00:53:45,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 00:53:45,854 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 00:53:45,854 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b29e58-9455-4c33-b0f3-e97ee65d4184/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 00:53:45,855 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b29e58-9455-4c33-b0f3-e97ee65d4184/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 00:53:45,856 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b29e58-9455-4c33-b0f3-e97ee65d4184/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-11-07 00:53:46,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 00:53:46,503 INFO L263 TraceCheckSpWp]: Trace formula consists of 325 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-07 00:53:46,506 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 00:53:47,042 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 51 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-07 00:53:47,042 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 00:53:47,615 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 51 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-07 00:53:47,615 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1680295028] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-07 00:53:47,615 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 6 imperfect interpolant sequences. [2021-11-07 00:53:47,615 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5, 5, 5, 5] total 14 [2021-11-07 00:53:47,616 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1152322461] [2021-11-07 00:53:47,616 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-11-07 00:53:47,616 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 00:53:47,617 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-11-07 00:53:47,617 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=139, Unknown=0, NotChecked=0, Total=182 [2021-11-07 00:53:47,618 INFO L87 Difference]: Start difference. First operand 220 states and 260 transitions. Second operand has 14 states, 14 states have (on average 24.071428571428573) internal successors, (337), 14 states have internal predecessors, (337), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 00:53:51,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 00:53:51,677 INFO L93 Difference]: Finished difference Result 781 states and 960 transitions. [2021-11-07 00:53:51,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2021-11-07 00:53:51,687 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 24.071428571428573) internal successors, (337), 14 states have internal predecessors, (337), 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 120 [2021-11-07 00:53:51,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 00:53:51,698 INFO L225 Difference]: With dead ends: 781 [2021-11-07 00:53:51,698 INFO L226 Difference]: Without dead ends: 604 [2021-11-07 00:53:51,703 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 754 GetRequests, 704 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 751 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=689, Invalid=1963, Unknown=0, NotChecked=0, Total=2652 [2021-11-07 00:53:51,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 604 states. [2021-11-07 00:53:51,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 604 to 604. [2021-11-07 00:53:51,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 604 states, 594 states have (on average 1.1851851851851851) internal successors, (704), 603 states have internal predecessors, (704), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 00:53:51,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 604 states to 604 states and 704 transitions. [2021-11-07 00:53:51,742 INFO L78 Accepts]: Start accepts. Automaton has 604 states and 704 transitions. Word has length 120 [2021-11-07 00:53:51,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 00:53:51,743 INFO L470 AbstractCegarLoop]: Abstraction has 604 states and 704 transitions. [2021-11-07 00:53:51,743 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 24.071428571428573) internal successors, (337), 14 states have internal predecessors, (337), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 00:53:51,744 INFO L276 IsEmpty]: Start isEmpty. Operand 604 states and 704 transitions. [2021-11-07 00:53:51,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 331 [2021-11-07 00:53:51,748 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 00:53:51,748 INFO L513 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 00:53:51,756 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b29e58-9455-4c33-b0f3-e97ee65d4184/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (9)] Ended with exit code 0 [2021-11-07 00:53:51,982 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b29e58-9455-4c33-b0f3-e97ee65d4184/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2021-11-07 00:53:52,167 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b29e58-9455-4c33-b0f3-e97ee65d4184/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (8)] Ended with exit code 0 [2021-11-07 00:53:52,354 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b29e58-9455-4c33-b0f3-e97ee65d4184/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b29e58-9455-4c33-b0f3-e97ee65d4184/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b29e58-9455-4c33-b0f3-e97ee65d4184/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 00:53:52,354 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2021-11-07 00:53:52,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 00:53:52,354 INFO L85 PathProgramCache]: Analyzing trace with hash -574302741, now seen corresponding path program 2 times [2021-11-07 00:53:52,356 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 00:53:52,356 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1249172782] [2021-11-07 00:53:52,356 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-07 00:53:52,356 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 00:53:52,356 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b29e58-9455-4c33-b0f3-e97ee65d4184/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 00:53:52,358 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b29e58-9455-4c33-b0f3-e97ee65d4184/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 00:53:52,360 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b29e58-9455-4c33-b0f3-e97ee65d4184/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-11-07 00:53:53,502 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-07 00:53:53,502 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-07 00:53:53,577 INFO L263 TraceCheckSpWp]: Trace formula consists of 791 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-07 00:53:53,581 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 00:53:54,488 INFO L134 CoverageAnalysis]: Checked inductivity of 788 backedges. 181 proven. 21 refuted. 0 times theorem prover too weak. 586 trivial. 0 not checked. [2021-11-07 00:53:54,488 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 00:53:55,714 INFO L134 CoverageAnalysis]: Checked inductivity of 788 backedges. 181 proven. 21 refuted. 0 times theorem prover too weak. 586 trivial. 0 not checked. [2021-11-07 00:53:55,714 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 00:53:55,714 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1249172782] [2021-11-07 00:53:55,714 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1249172782] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-07 00:53:55,715 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [137026398] [2021-11-07 00:53:55,715 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-07 00:53:55,715 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-07 00:53:55,715 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b29e58-9455-4c33-b0f3-e97ee65d4184/bin/utaipan-UUZaoUuFF8/cvc4 [2021-11-07 00:53:55,717 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b29e58-9455-4c33-b0f3-e97ee65d4184/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-07 00:53:55,719 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b29e58-9455-4c33-b0f3-e97ee65d4184/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (12)] Waiting until timeout for monitored process [2021-11-07 00:53:57,520 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-07 00:53:57,520 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-07 00:53:57,564 INFO L263 TraceCheckSpWp]: Trace formula consists of 791 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-07 00:53:57,567 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 00:53:58,318 INFO L134 CoverageAnalysis]: Checked inductivity of 788 backedges. 181 proven. 21 refuted. 0 times theorem prover too weak. 586 trivial. 0 not checked. [2021-11-07 00:53:58,319 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 00:53:59,155 INFO L134 CoverageAnalysis]: Checked inductivity of 788 backedges. 181 proven. 21 refuted. 0 times theorem prover too weak. 586 trivial. 0 not checked. [2021-11-07 00:53:59,156 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [137026398] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-07 00:53:59,156 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [256606395] [2021-11-07 00:53:59,156 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-07 00:53:59,157 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 00:53:59,157 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b29e58-9455-4c33-b0f3-e97ee65d4184/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 00:53:59,160 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b29e58-9455-4c33-b0f3-e97ee65d4184/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 00:53:59,161 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b29e58-9455-4c33-b0f3-e97ee65d4184/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2021-11-07 00:54:00,549 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-07 00:54:00,549 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-07 00:54:00,611 INFO L263 TraceCheckSpWp]: Trace formula consists of 791 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-07 00:54:00,617 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 00:54:01,454 INFO L134 CoverageAnalysis]: Checked inductivity of 788 backedges. 181 proven. 6 refuted. 0 times theorem prover too weak. 601 trivial. 0 not checked. [2021-11-07 00:54:01,454 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 00:54:02,556 INFO L134 CoverageAnalysis]: Checked inductivity of 788 backedges. 181 proven. 6 refuted. 0 times theorem prover too weak. 601 trivial. 0 not checked. [2021-11-07 00:54:02,557 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [256606395] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-07 00:54:02,557 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 6 imperfect interpolant sequences. [2021-11-07 00:54:02,557 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9, 9, 6, 6] total 23 [2021-11-07 00:54:02,557 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [539893255] [2021-11-07 00:54:02,559 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-11-07 00:54:02,559 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 00:54:02,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-11-07 00:54:02,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=156, Invalid=350, Unknown=0, NotChecked=0, Total=506 [2021-11-07 00:54:02,560 INFO L87 Difference]: Start difference. First operand 604 states and 704 transitions. Second operand has 23 states, 23 states have (on average 5.782608695652174) internal successors, (133), 23 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 00:54:05,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 00:54:05,679 INFO L93 Difference]: Finished difference Result 1733 states and 2131 transitions. [2021-11-07 00:54:05,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-11-07 00:54:05,681 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 5.782608695652174) internal successors, (133), 23 states have internal predecessors, (133), 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 330 [2021-11-07 00:54:05,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 00:54:05,688 INFO L225 Difference]: With dead ends: 1733 [2021-11-07 00:54:05,688 INFO L226 Difference]: Without dead ends: 1176 [2021-11-07 00:54:05,690 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 1988 GetRequests, 1960 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 100 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=311, Invalid=559, Unknown=0, NotChecked=0, Total=870 [2021-11-07 00:54:05,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1176 states. [2021-11-07 00:54:05,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1176 to 724. [2021-11-07 00:54:05,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 724 states, 714 states have (on average 1.1624649859943978) internal successors, (830), 723 states have internal predecessors, (830), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 00:54:05,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 724 states to 724 states and 830 transitions. [2021-11-07 00:54:05,756 INFO L78 Accepts]: Start accepts. Automaton has 724 states and 830 transitions. Word has length 330 [2021-11-07 00:54:05,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 00:54:05,757 INFO L470 AbstractCegarLoop]: Abstraction has 724 states and 830 transitions. [2021-11-07 00:54:05,757 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 5.782608695652174) internal successors, (133), 23 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 00:54:05,757 INFO L276 IsEmpty]: Start isEmpty. Operand 724 states and 830 transitions. [2021-11-07 00:54:05,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 347 [2021-11-07 00:54:05,764 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 00:54:05,765 INFO L513 BasicCegarLoop]: trace histogram [14, 11, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 00:54:05,789 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b29e58-9455-4c33-b0f3-e97ee65d4184/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (12)] Forceful destruction successful, exit code 0 [2021-11-07 00:54:05,995 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b29e58-9455-4c33-b0f3-e97ee65d4184/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-11-07 00:54:06,217 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b29e58-9455-4c33-b0f3-e97ee65d4184/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2021-11-07 00:54:06,374 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b29e58-9455-4c33-b0f3-e97ee65d4184/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b29e58-9455-4c33-b0f3-e97ee65d4184/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b29e58-9455-4c33-b0f3-e97ee65d4184/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 00:54:06,374 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2021-11-07 00:54:06,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 00:54:06,374 INFO L85 PathProgramCache]: Analyzing trace with hash 890409067, now seen corresponding path program 3 times [2021-11-07 00:54:06,376 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 00:54:06,376 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1763506280] [2021-11-07 00:54:06,376 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-07 00:54:06,376 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 00:54:06,376 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b29e58-9455-4c33-b0f3-e97ee65d4184/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 00:54:06,377 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b29e58-9455-4c33-b0f3-e97ee65d4184/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 00:54:06,378 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b29e58-9455-4c33-b0f3-e97ee65d4184/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process