./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test8-2.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_bbdb894a-4ca3-4d80-aaa0-adc8d099a7c9/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbdb894a-4ca3-4d80-aaa0-adc8d099a7c9/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_bbdb894a-4ca3-4d80-aaa0-adc8d099a7c9/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbdb894a-4ca3-4d80-aaa0-adc8d099a7c9/bin/utaipan-UUZaoUuFF8/config/TaipanReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test8-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbdb894a-4ca3-4d80-aaa0-adc8d099a7c9/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_bbdb894a-4ca3-4d80-aaa0-adc8d099a7c9/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 dfe9cedb3fb732c747a1ef802da6fccda86efe7de6f5d2fc74063f23f28dc4dd --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 01:41:23,257 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 01:41:23,261 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 01:41:23,326 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 01:41:23,327 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 01:41:23,332 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 01:41:23,334 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 01:41:23,339 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 01:41:23,343 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 01:41:23,349 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 01:41:23,351 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 01:41:23,353 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 01:41:23,354 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 01:41:23,357 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 01:41:23,360 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 01:41:23,370 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 01:41:23,372 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 01:41:23,374 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 01:41:23,376 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 01:41:23,386 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 01:41:23,389 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 01:41:23,390 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 01:41:23,394 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 01:41:23,396 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 01:41:23,407 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 01:41:23,407 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 01:41:23,408 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 01:41:23,411 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 01:41:23,412 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 01:41:23,414 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 01:41:23,414 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 01:41:23,416 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 01:41:23,418 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 01:41:23,420 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 01:41:23,422 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 01:41:23,423 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 01:41:23,424 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 01:41:23,424 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 01:41:23,425 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 01:41:23,426 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 01:41:23,427 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 01:41:23,428 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbdb894a-4ca3-4d80-aaa0-adc8d099a7c9/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-07 01:41:23,483 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 01:41:23,484 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 01:41:23,486 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 01:41:23,486 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 01:41:23,486 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 01:41:23,487 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 01:41:23,487 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-07 01:41:23,488 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 01:41:23,488 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 01:41:23,488 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-07 01:41:23,490 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-07 01:41:23,490 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 01:41:23,491 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-07 01:41:23,491 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-07 01:41:23,491 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-07 01:41:23,493 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 01:41:23,493 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-07 01:41:23,493 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 01:41:23,494 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-07 01:41:23,494 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 01:41:23,494 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 01:41:23,495 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 01:41:23,495 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 01:41:23,495 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 01:41:23,496 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-07 01:41:23,496 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 01:41:23,497 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 01:41:23,497 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 01:41:23,497 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 01:41:23,499 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 01:41:23,500 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 01:41:23,500 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 01:41:23,501 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 01:41:23,501 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 01:41:23,502 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-07 01:41:23,502 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 01:41:23,502 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 01:41:23,503 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 01:41:23,503 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 01:41:23,504 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_bbdb894a-4ca3-4d80-aaa0-adc8d099a7c9/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbdb894a-4ca3-4d80-aaa0-adc8d099a7c9/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dfe9cedb3fb732c747a1ef802da6fccda86efe7de6f5d2fc74063f23f28dc4dd [2021-11-07 01:41:23,858 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 01:41:23,901 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 01:41:23,904 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 01:41:23,905 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 01:41:23,906 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 01:41:23,907 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbdb894a-4ca3-4d80-aaa0-adc8d099a7c9/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test8-2.i [2021-11-07 01:41:23,989 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbdb894a-4ca3-4d80-aaa0-adc8d099a7c9/bin/utaipan-UUZaoUuFF8/data/3ac28da84/66b3be36da47417b82c7d85af5efc058/FLAG482c689d9 [2021-11-07 01:41:24,703 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 01:41:24,704 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbdb894a-4ca3-4d80-aaa0-adc8d099a7c9/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test8-2.i [2021-11-07 01:41:24,727 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbdb894a-4ca3-4d80-aaa0-adc8d099a7c9/bin/utaipan-UUZaoUuFF8/data/3ac28da84/66b3be36da47417b82c7d85af5efc058/FLAG482c689d9 [2021-11-07 01:41:24,903 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbdb894a-4ca3-4d80-aaa0-adc8d099a7c9/bin/utaipan-UUZaoUuFF8/data/3ac28da84/66b3be36da47417b82c7d85af5efc058 [2021-11-07 01:41:24,906 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 01:41:24,908 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 01:41:24,910 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 01:41:24,910 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 01:41:24,918 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 01:41:24,919 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:41:24" (1/1) ... [2021-11-07 01:41:24,922 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@586a8e0d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:41:24, skipping insertion in model container [2021-11-07 01:41:24,922 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:41:24" (1/1) ... [2021-11-07 01:41:24,932 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 01:41:25,010 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 01:41:25,623 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_bbdb894a-4ca3-4d80-aaa0-adc8d099a7c9/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test8-2.i[33021,33034] [2021-11-07 01:41:25,840 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_bbdb894a-4ca3-4d80-aaa0-adc8d099a7c9/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test8-2.i[45234,45247] [2021-11-07 01:41:25,871 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:41:25,885 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2021-11-07 01:41:25,886 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@6893cfe9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:41:25, skipping insertion in model container [2021-11-07 01:41:25,886 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 01:41:25,887 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-07 01:41:25,890 INFO L168 Benchmark]: Toolchain (without parser) took 979.64 ms. Allocated memory is still 100.7 MB. Free memory was 66.7 MB in the beginning and 66.4 MB in the end (delta: 293.8 kB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-11-07 01:41:25,892 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 100.7 MB. Free memory is still 53.2 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 01:41:25,895 INFO L168 Benchmark]: CACSL2BoogieTranslator took 976.48 ms. Allocated memory is still 100.7 MB. Free memory was 66.5 MB in the beginning and 66.4 MB in the end (delta: 53.0 kB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-11-07 01:41:25,897 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 100.7 MB. Free memory is still 53.2 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 976.48 ms. Allocated memory is still 100.7 MB. Free memory was 66.5 MB in the beginning and 66.4 MB in the end (delta: 53.0 kB). 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: 766]: 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_bbdb894a-4ca3-4d80-aaa0-adc8d099a7c9/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbdb894a-4ca3-4d80-aaa0-adc8d099a7c9/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_bbdb894a-4ca3-4d80-aaa0-adc8d099a7c9/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbdb894a-4ca3-4d80-aaa0-adc8d099a7c9/bin/utaipan-UUZaoUuFF8/config/TaipanReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test8-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbdb894a-4ca3-4d80-aaa0-adc8d099a7c9/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_bbdb894a-4ca3-4d80-aaa0-adc8d099a7c9/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 dfe9cedb3fb732c747a1ef802da6fccda86efe7de6f5d2fc74063f23f28dc4dd --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 01:41:28,551 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 01:41:28,555 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 01:41:28,618 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 01:41:28,619 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 01:41:28,624 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 01:41:28,626 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 01:41:28,631 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 01:41:28,635 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 01:41:28,644 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 01:41:28,646 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 01:41:28,648 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 01:41:28,649 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 01:41:28,651 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 01:41:28,654 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 01:41:28,658 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 01:41:28,660 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 01:41:28,662 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 01:41:28,664 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 01:41:28,675 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 01:41:28,678 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 01:41:28,680 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 01:41:28,684 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 01:41:28,686 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 01:41:28,697 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 01:41:28,697 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 01:41:28,698 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 01:41:28,701 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 01:41:28,701 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 01:41:28,703 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 01:41:28,703 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 01:41:28,704 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 01:41:28,707 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 01:41:28,708 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 01:41:28,710 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 01:41:28,710 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 01:41:28,722 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 01:41:28,722 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 01:41:28,722 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 01:41:28,725 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 01:41:28,726 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 01:41:28,727 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbdb894a-4ca3-4d80-aaa0-adc8d099a7c9/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-11-07 01:41:28,780 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 01:41:28,781 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 01:41:28,782 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 01:41:28,782 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 01:41:28,783 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 01:41:28,783 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 01:41:28,783 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 01:41:28,783 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 01:41:28,784 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 01:41:28,785 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 01:41:28,787 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-07 01:41:28,787 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-07 01:41:28,787 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 01:41:28,787 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 01:41:28,788 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 01:41:28,788 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 01:41:28,788 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 01:41:28,788 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-07 01:41:28,789 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-07 01:41:28,789 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-07 01:41:28,789 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 01:41:28,789 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 01:41:28,790 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 01:41:28,790 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 01:41:28,790 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 01:41:28,790 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 01:41:28,791 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 01:41:28,791 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 01:41:28,791 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 01:41:28,791 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 01:41:28,792 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-07 01:41:28,792 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-07 01:41:28,792 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 01:41:28,792 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 01:41:28,793 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 01:41:28,793 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_bbdb894a-4ca3-4d80-aaa0-adc8d099a7c9/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbdb894a-4ca3-4d80-aaa0-adc8d099a7c9/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dfe9cedb3fb732c747a1ef802da6fccda86efe7de6f5d2fc74063f23f28dc4dd [2021-11-07 01:41:29,218 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 01:41:29,256 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 01:41:29,259 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 01:41:29,262 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 01:41:29,263 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 01:41:29,266 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbdb894a-4ca3-4d80-aaa0-adc8d099a7c9/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test8-2.i [2021-11-07 01:41:29,359 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbdb894a-4ca3-4d80-aaa0-adc8d099a7c9/bin/utaipan-UUZaoUuFF8/data/9755ff2b3/b039501ca9214478bf0b6e456bc92107/FLAGfb9c93530 [2021-11-07 01:41:30,251 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 01:41:30,256 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbdb894a-4ca3-4d80-aaa0-adc8d099a7c9/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test8-2.i [2021-11-07 01:41:30,285 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbdb894a-4ca3-4d80-aaa0-adc8d099a7c9/bin/utaipan-UUZaoUuFF8/data/9755ff2b3/b039501ca9214478bf0b6e456bc92107/FLAGfb9c93530 [2021-11-07 01:41:30,396 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbdb894a-4ca3-4d80-aaa0-adc8d099a7c9/bin/utaipan-UUZaoUuFF8/data/9755ff2b3/b039501ca9214478bf0b6e456bc92107 [2021-11-07 01:41:30,399 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 01:41:30,402 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 01:41:30,407 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 01:41:30,408 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 01:41:30,412 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 01:41:30,414 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:41:30" (1/1) ... [2021-11-07 01:41:30,415 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@21341dab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:41:30, skipping insertion in model container [2021-11-07 01:41:30,415 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:41:30" (1/1) ... [2021-11-07 01:41:30,427 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 01:41:30,524 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 01:41:31,152 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_bbdb894a-4ca3-4d80-aaa0-adc8d099a7c9/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test8-2.i[33021,33034] [2021-11-07 01:41:31,304 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_bbdb894a-4ca3-4d80-aaa0-adc8d099a7c9/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test8-2.i[45234,45247] [2021-11-07 01:41:31,328 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:41:31,349 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-07 01:41:31,380 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 01:41:31,415 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_bbdb894a-4ca3-4d80-aaa0-adc8d099a7c9/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test8-2.i[33021,33034] [2021-11-07 01:41:31,539 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_bbdb894a-4ca3-4d80-aaa0-adc8d099a7c9/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test8-2.i[45234,45247] [2021-11-07 01:41:31,579 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:41:31,588 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 01:41:31,623 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_bbdb894a-4ca3-4d80-aaa0-adc8d099a7c9/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test8-2.i[33021,33034] [2021-11-07 01:41:31,689 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_bbdb894a-4ca3-4d80-aaa0-adc8d099a7c9/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test8-2.i[45234,45247] [2021-11-07 01:41:31,700 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:41:31,769 INFO L208 MainTranslator]: Completed translation [2021-11-07 01:41:31,770 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:41:31 WrapperNode [2021-11-07 01:41:31,770 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 01:41:31,771 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 01:41:31,771 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 01:41:31,772 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 01:41:31,780 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:41:31" (1/1) ... [2021-11-07 01:41:31,829 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:41:31" (1/1) ... [2021-11-07 01:41:31,942 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 01:41:31,943 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 01:41:31,943 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 01:41:31,943 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 01:41:31,954 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:41:31" (1/1) ... [2021-11-07 01:41:31,954 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:41:31" (1/1) ... [2021-11-07 01:41:31,973 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:41:31" (1/1) ... [2021-11-07 01:41:31,974 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:41:31" (1/1) ... [2021-11-07 01:41:32,057 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:41:31" (1/1) ... [2021-11-07 01:41:32,084 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:41:31" (1/1) ... [2021-11-07 01:41:32,095 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:41:31" (1/1) ... [2021-11-07 01:41:32,139 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 01:41:32,143 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 01:41:32,144 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 01:41:32,144 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 01:41:32,145 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:41:31" (1/1) ... [2021-11-07 01:41:32,154 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 01:41:32,169 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbdb894a-4ca3-4d80-aaa0-adc8d099a7c9/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 01:41:32,194 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbdb894a-4ca3-4d80-aaa0-adc8d099a7c9/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-07 01:41:32,214 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbdb894a-4ca3-4d80-aaa0-adc8d099a7c9/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-07 01:41:32,261 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-07 01:41:32,261 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-07 01:41:32,261 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-07 01:41:32,261 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-07 01:41:32,261 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 01:41:32,262 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-11-07 01:41:32,262 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-07 01:41:32,262 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-07 01:41:32,263 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-07 01:41:32,263 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-07 01:41:32,263 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 01:41:32,263 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 01:41:41,015 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 01:41:41,015 INFO L299 CfgBuilder]: Removed 145 assume(true) statements. [2021-11-07 01:41:41,018 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:41:41 BoogieIcfgContainer [2021-11-07 01:41:41,019 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 01:41:41,021 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 01:41:41,021 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 01:41:41,025 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 01:41:41,025 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 01:41:30" (1/3) ... [2021-11-07 01:41:41,026 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42acbb0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:41:41, skipping insertion in model container [2021-11-07 01:41:41,026 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:41:31" (2/3) ... [2021-11-07 01:41:41,027 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42acbb0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:41:41, skipping insertion in model container [2021-11-07 01:41:41,027 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:41:41" (3/3) ... [2021-11-07 01:41:41,029 INFO L111 eAbstractionObserver]: Analyzing ICFG uthash_SFH_test8-2.i [2021-11-07 01:41:41,036 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 01:41:41,036 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 31 error locations. [2021-11-07 01:41:41,097 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 01:41:41,105 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 01:41:41,105 INFO L340 AbstractCegarLoop]: Starting to check reachability of 31 error locations. [2021-11-07 01:41:41,139 INFO L276 IsEmpty]: Start isEmpty. Operand has 331 states, 299 states have (on average 1.7826086956521738) internal successors, (533), 330 states have internal predecessors, (533), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:41:41,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-07 01:41:41,147 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:41:41,148 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:41:41,148 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2021-11-07 01:41:41,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:41:41,163 INFO L85 PathProgramCache]: Analyzing trace with hash -109840528, now seen corresponding path program 1 times [2021-11-07 01:41:41,180 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:41:41,180 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1670343094] [2021-11-07 01:41:41,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:41:41,181 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:41:41,182 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbdb894a-4ca3-4d80-aaa0-adc8d099a7c9/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:41:41,187 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbdb894a-4ca3-4d80-aaa0-adc8d099a7c9/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:41:41,201 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbdb894a-4ca3-4d80-aaa0-adc8d099a7c9/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-07 01:41:41,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:41:41,449 INFO L263 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-07 01:41:41,455 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:41:41,565 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 01:41:41,565 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:41:41,603 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 01:41:41,604 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:41:41,605 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1670343094] [2021-11-07 01:41:41,605 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1670343094] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:41:41,606 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:41:41,606 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-07 01:41:41,608 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [425307372] [2021-11-07 01:41:41,613 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-07 01:41:41,613 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:41:41,628 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-07 01:41:41,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-07 01:41:41,632 INFO L87 Difference]: Start difference. First operand has 331 states, 299 states have (on average 1.7826086956521738) internal successors, (533), 330 states have internal predecessors, (533), 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 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:41:41,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:41:41,749 INFO L93 Difference]: Finished difference Result 660 states and 1064 transitions. [2021-11-07 01:41:41,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-07 01:41:41,751 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2021-11-07 01:41:41,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:41:41,779 INFO L225 Difference]: With dead ends: 660 [2021-11-07 01:41:41,785 INFO L226 Difference]: Without dead ends: 298 [2021-11-07 01:41:41,794 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 16 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 01:41:41,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2021-11-07 01:41:41,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 298. [2021-11-07 01:41:41,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 298 states, 267 states have (on average 1.4344569288389513) internal successors, (383), 297 states have internal predecessors, (383), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:41:41,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 383 transitions. [2021-11-07 01:41:41,886 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 383 transitions. Word has length 9 [2021-11-07 01:41:41,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:41:41,887 INFO L470 AbstractCegarLoop]: Abstraction has 298 states and 383 transitions. [2021-11-07 01:41:41,887 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:41:41,887 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 383 transitions. [2021-11-07 01:41:41,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-11-07 01:41:41,890 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:41:41,890 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:41:41,908 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbdb894a-4ca3-4d80-aaa0-adc8d099a7c9/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-07 01:41:42,091 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbdb894a-4ca3-4d80-aaa0-adc8d099a7c9/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:41:42,095 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2021-11-07 01:41:42,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:41:42,096 INFO L85 PathProgramCache]: Analyzing trace with hash 518597571, now seen corresponding path program 1 times [2021-11-07 01:41:42,097 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:41:42,098 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1362045128] [2021-11-07 01:41:42,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:41:42,098 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:41:42,100 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbdb894a-4ca3-4d80-aaa0-adc8d099a7c9/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:41:42,101 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbdb894a-4ca3-4d80-aaa0-adc8d099a7c9/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:41:42,106 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbdb894a-4ca3-4d80-aaa0-adc8d099a7c9/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-07 01:41:42,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:41:42,387 INFO L263 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-07 01:41:42,392 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:41:42,638 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 01:41:42,638 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:41:42,846 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 01:41:42,846 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:41:42,847 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1362045128] [2021-11-07 01:41:42,847 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1362045128] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:41:42,847 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:41:42,848 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 5 [2021-11-07 01:41:42,848 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [128856359] [2021-11-07 01:41:42,850 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 01:41:42,850 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:41:42,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 01:41:42,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-07 01:41:42,853 INFO L87 Difference]: Start difference. First operand 298 states and 383 transitions. Second operand has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:41:43,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:41:43,054 INFO L93 Difference]: Finished difference Result 451 states and 581 transitions. [2021-11-07 01:41:43,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 01:41:43,055 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 44 [2021-11-07 01:41:43,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:41:43,058 INFO L225 Difference]: With dead ends: 451 [2021-11-07 01:41:43,058 INFO L226 Difference]: Without dead ends: 307 [2021-11-07 01:41:43,060 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 83 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 01:41:43,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 307 states. [2021-11-07 01:41:43,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 307 to 301. [2021-11-07 01:41:43,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 301 states, 270 states have (on average 1.4) internal successors, (378), 300 states have internal predecessors, (378), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:41:43,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 301 states to 301 states and 378 transitions. [2021-11-07 01:41:43,082 INFO L78 Accepts]: Start accepts. Automaton has 301 states and 378 transitions. Word has length 44 [2021-11-07 01:41:43,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:41:43,083 INFO L470 AbstractCegarLoop]: Abstraction has 301 states and 378 transitions. [2021-11-07 01:41:43,083 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:41:43,083 INFO L276 IsEmpty]: Start isEmpty. Operand 301 states and 378 transitions. [2021-11-07 01:41:43,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-11-07 01:41:43,086 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:41:43,086 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:41:43,102 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbdb894a-4ca3-4d80-aaa0-adc8d099a7c9/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-07 01:41:43,301 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbdb894a-4ca3-4d80-aaa0-adc8d099a7c9/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:41:43,302 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2021-11-07 01:41:43,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:41:43,303 INFO L85 PathProgramCache]: Analyzing trace with hash -230237769, now seen corresponding path program 1 times [2021-11-07 01:41:43,304 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:41:43,304 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [731489440] [2021-11-07 01:41:43,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:41:43,304 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:41:43,305 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbdb894a-4ca3-4d80-aaa0-adc8d099a7c9/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:41:43,306 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbdb894a-4ca3-4d80-aaa0-adc8d099a7c9/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:41:43,310 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbdb894a-4ca3-4d80-aaa0-adc8d099a7c9/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-07 01:41:43,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:41:43,624 INFO L263 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-07 01:41:43,627 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:41:43,663 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-07 01:41:43,664 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-07 01:41:43,664 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-07 01:41:43,769 INFO L354 Elim1Store]: treesize reduction 166, result has 13.5 percent of original size [2021-11-07 01:41:43,770 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 30 treesize of output 36 [2021-11-07 01:41:43,857 INFO L354 Elim1Store]: treesize reduction 66, result has 1.5 percent of original size [2021-11-07 01:41:43,857 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 67 treesize of output 23 [2021-11-07 01:41:44,058 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 01:41:44,059 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:41:44,403 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 01:41:44,404 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:41:44,404 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [731489440] [2021-11-07 01:41:44,405 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [731489440] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:41:44,410 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:41:44,410 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-11-07 01:41:44,410 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [179877212] [2021-11-07 01:41:44,411 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-07 01:41:44,411 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:41:44,412 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-07 01:41:44,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-07 01:41:44,418 INFO L87 Difference]: Start difference. First operand 301 states and 378 transitions. Second operand has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:41:55,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:41:55,890 INFO L93 Difference]: Finished difference Result 768 states and 954 transitions. [2021-11-07 01:41:55,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 01:41:55,892 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 44 [2021-11-07 01:41:55,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:41:55,896 INFO L225 Difference]: With dead ends: 768 [2021-11-07 01:41:55,896 INFO L226 Difference]: Without dead ends: 620 [2021-11-07 01:41:55,898 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-07 01:41:55,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 620 states. [2021-11-07 01:41:55,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 620 to 303. [2021-11-07 01:41:55,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 303 states, 272 states have (on average 1.3970588235294117) internal successors, (380), 302 states have internal predecessors, (380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:41:55,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 303 states to 303 states and 380 transitions. [2021-11-07 01:41:55,924 INFO L78 Accepts]: Start accepts. Automaton has 303 states and 380 transitions. Word has length 44 [2021-11-07 01:41:55,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:41:55,924 INFO L470 AbstractCegarLoop]: Abstraction has 303 states and 380 transitions. [2021-11-07 01:41:55,924 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:41:55,925 INFO L276 IsEmpty]: Start isEmpty. Operand 303 states and 380 transitions. [2021-11-07 01:41:55,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-11-07 01:41:55,927 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:41:55,927 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:41:55,949 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbdb894a-4ca3-4d80-aaa0-adc8d099a7c9/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-07 01:41:56,144 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbdb894a-4ca3-4d80-aaa0-adc8d099a7c9/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:41:56,145 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2021-11-07 01:41:56,145 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:41:56,146 INFO L85 PathProgramCache]: Analyzing trace with hash 1543983351, now seen corresponding path program 1 times [2021-11-07 01:41:56,146 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:41:56,147 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2070055720] [2021-11-07 01:41:56,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:41:56,147 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:41:56,147 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbdb894a-4ca3-4d80-aaa0-adc8d099a7c9/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:41:56,148 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbdb894a-4ca3-4d80-aaa0-adc8d099a7c9/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:41:56,172 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbdb894a-4ca3-4d80-aaa0-adc8d099a7c9/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-07 01:41:56,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:41:56,526 INFO L263 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-07 01:41:56,530 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:41:56,732 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 01:41:56,732 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:41:56,958 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 01:41:56,958 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:41:56,959 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2070055720] [2021-11-07 01:41:56,959 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2070055720] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:41:56,959 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:41:56,959 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 5 [2021-11-07 01:41:56,959 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1995685908] [2021-11-07 01:41:56,960 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 01:41:56,960 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:41:56,961 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 01:41:56,961 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-07 01:41:56,961 INFO L87 Difference]: Start difference. First operand 303 states and 380 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:41:57,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:41:57,155 INFO L93 Difference]: Finished difference Result 611 states and 768 transitions. [2021-11-07 01:41:57,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 01:41:57,156 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 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 57 [2021-11-07 01:41:57,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:41:57,158 INFO L225 Difference]: With dead ends: 611 [2021-11-07 01:41:57,159 INFO L226 Difference]: Without dead ends: 312 [2021-11-07 01:41:57,160 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 109 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 01:41:57,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 312 states. [2021-11-07 01:41:57,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 312 to 306. [2021-11-07 01:41:57,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 306 states, 275 states have (on average 1.3636363636363635) internal successors, (375), 305 states have internal predecessors, (375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:41:57,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 306 states to 306 states and 375 transitions. [2021-11-07 01:41:57,174 INFO L78 Accepts]: Start accepts. Automaton has 306 states and 375 transitions. Word has length 57 [2021-11-07 01:41:57,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:41:57,175 INFO L470 AbstractCegarLoop]: Abstraction has 306 states and 375 transitions. [2021-11-07 01:41:57,175 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:41:57,176 INFO L276 IsEmpty]: Start isEmpty. Operand 306 states and 375 transitions. [2021-11-07 01:41:57,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-11-07 01:41:57,178 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:41:57,178 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:41:57,199 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbdb894a-4ca3-4d80-aaa0-adc8d099a7c9/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-07 01:41:57,395 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbdb894a-4ca3-4d80-aaa0-adc8d099a7c9/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:41:57,395 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2021-11-07 01:41:57,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:41:57,396 INFO L85 PathProgramCache]: Analyzing trace with hash -1996694677, now seen corresponding path program 1 times [2021-11-07 01:41:57,397 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:41:57,397 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1225825070] [2021-11-07 01:41:57,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:41:57,397 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:41:57,398 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbdb894a-4ca3-4d80-aaa0-adc8d099a7c9/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:41:57,399 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbdb894a-4ca3-4d80-aaa0-adc8d099a7c9/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:41:57,404 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbdb894a-4ca3-4d80-aaa0-adc8d099a7c9/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-07 01:41:57,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:41:57,819 INFO L263 TraceCheckSpWp]: Trace formula consists of 150 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-07 01:41:57,823 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:41:58,321 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 01:41:58,321 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:41:58,825 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 01:41:58,826 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:41:58,826 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1225825070] [2021-11-07 01:41:58,826 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1225825070] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:41:58,826 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:41:58,827 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-07 01:41:58,827 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [849800744] [2021-11-07 01:41:58,827 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 01:41:58,829 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:41:58,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 01:41:58,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 01:41:58,830 INFO L87 Difference]: Start difference. First operand 306 states and 375 transitions. Second operand has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:41:59,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:41:59,653 INFO L93 Difference]: Finished difference Result 779 states and 950 transitions. [2021-11-07 01:41:59,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 01:41:59,654 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 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 57 [2021-11-07 01:41:59,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:41:59,658 INFO L225 Difference]: With dead ends: 779 [2021-11-07 01:41:59,658 INFO L226 Difference]: Without dead ends: 477 [2021-11-07 01:41:59,659 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 111 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 01:41:59,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 477 states. [2021-11-07 01:41:59,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 477 to 444. [2021-11-07 01:41:59,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 444 states, 413 states have (on average 1.3559322033898304) internal successors, (560), 443 states have internal predecessors, (560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:41:59,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 444 states to 444 states and 560 transitions. [2021-11-07 01:41:59,680 INFO L78 Accepts]: Start accepts. Automaton has 444 states and 560 transitions. Word has length 57 [2021-11-07 01:41:59,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:41:59,681 INFO L470 AbstractCegarLoop]: Abstraction has 444 states and 560 transitions. [2021-11-07 01:41:59,681 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:41:59,681 INFO L276 IsEmpty]: Start isEmpty. Operand 444 states and 560 transitions. [2021-11-07 01:41:59,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2021-11-07 01:41:59,683 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:41:59,683 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:41:59,702 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbdb894a-4ca3-4d80-aaa0-adc8d099a7c9/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-07 01:41:59,899 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbdb894a-4ca3-4d80-aaa0-adc8d099a7c9/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:41:59,900 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2021-11-07 01:41:59,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:41:59,900 INFO L85 PathProgramCache]: Analyzing trace with hash -1378561412, now seen corresponding path program 1 times [2021-11-07 01:41:59,902 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:41:59,902 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [694465490] [2021-11-07 01:41:59,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:41:59,902 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:41:59,902 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbdb894a-4ca3-4d80-aaa0-adc8d099a7c9/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:41:59,903 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbdb894a-4ca3-4d80-aaa0-adc8d099a7c9/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:41:59,906 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbdb894a-4ca3-4d80-aaa0-adc8d099a7c9/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-07 01:42:00,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:42:00,332 INFO L263 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-07 01:42:00,336 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:42:00,539 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 01:42:00,540 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:42:00,721 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 01:42:00,721 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:42:00,721 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [694465490] [2021-11-07 01:42:00,721 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [694465490] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:42:00,721 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:42:00,722 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-07 01:42:00,722 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1516221419] [2021-11-07 01:42:00,722 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 01:42:00,722 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:42:00,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 01:42:00,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 01:42:00,723 INFO L87 Difference]: Start difference. First operand 444 states and 560 transitions. Second operand has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:42:00,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:42:00,822 INFO L93 Difference]: Finished difference Result 846 states and 1077 transitions. [2021-11-07 01:42:00,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 01:42:00,823 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 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 64 [2021-11-07 01:42:00,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:42:00,827 INFO L225 Difference]: With dead ends: 846 [2021-11-07 01:42:00,827 INFO L226 Difference]: Without dead ends: 447 [2021-11-07 01:42:00,828 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 124 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 01:42:00,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 447 states. [2021-11-07 01:42:00,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 447 to 447. [2021-11-07 01:42:00,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 447 states, 416 states have (on average 1.3533653846153846) internal successors, (563), 446 states have internal predecessors, (563), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:42:00,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 447 states to 447 states and 563 transitions. [2021-11-07 01:42:00,854 INFO L78 Accepts]: Start accepts. Automaton has 447 states and 563 transitions. Word has length 64 [2021-11-07 01:42:00,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:42:00,854 INFO L470 AbstractCegarLoop]: Abstraction has 447 states and 563 transitions. [2021-11-07 01:42:00,855 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:42:00,855 INFO L276 IsEmpty]: Start isEmpty. Operand 447 states and 563 transitions. [2021-11-07 01:42:00,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2021-11-07 01:42:00,860 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:42:00,860 INFO L513 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:42:00,886 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbdb894a-4ca3-4d80-aaa0-adc8d099a7c9/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-07 01:42:01,082 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbdb894a-4ca3-4d80-aaa0-adc8d099a7c9/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:42:01,082 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2021-11-07 01:42:01,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:42:01,083 INFO L85 PathProgramCache]: Analyzing trace with hash 1549801264, now seen corresponding path program 1 times [2021-11-07 01:42:01,084 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:42:01,084 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2083318688] [2021-11-07 01:42:01,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:42:01,085 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:42:01,085 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbdb894a-4ca3-4d80-aaa0-adc8d099a7c9/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:42:01,087 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbdb894a-4ca3-4d80-aaa0-adc8d099a7c9/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:42:01,128 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbdb894a-4ca3-4d80-aaa0-adc8d099a7c9/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-07 01:42:01,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:42:01,618 INFO L263 TraceCheckSpWp]: Trace formula consists of 217 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-07 01:42:01,620 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:42:01,862 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-07 01:42:01,863 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:42:02,134 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-07 01:42:02,135 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:42:02,135 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2083318688] [2021-11-07 01:42:02,135 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2083318688] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-07 01:42:02,135 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [510185053] [2021-11-07 01:42:02,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:42:02,136 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-07 01:42:02,136 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbdb894a-4ca3-4d80-aaa0-adc8d099a7c9/bin/utaipan-UUZaoUuFF8/cvc4 [2021-11-07 01:42:02,145 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbdb894a-4ca3-4d80-aaa0-adc8d099a7c9/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-07 01:42:02,148 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbdb894a-4ca3-4d80-aaa0-adc8d099a7c9/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (9)] Waiting until timeout for monitored process [2021-11-07 01:42:02,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:42:02,936 INFO L263 TraceCheckSpWp]: Trace formula consists of 217 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-07 01:42:02,938 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:42:03,170 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-07 01:42:03,171 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:42:03,363 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-07 01:42:03,363 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [510185053] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-07 01:42:03,363 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [788503843] [2021-11-07 01:42:03,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:42:03,364 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 01:42:03,364 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbdb894a-4ca3-4d80-aaa0-adc8d099a7c9/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 01:42:03,371 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbdb894a-4ca3-4d80-aaa0-adc8d099a7c9/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 01:42:03,394 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbdb894a-4ca3-4d80-aaa0-adc8d099a7c9/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-11-07 01:42:03,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:42:03,896 INFO L263 TraceCheckSpWp]: Trace formula consists of 217 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-07 01:42:03,899 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:42:04,187 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-07 01:42:04,188 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:42:04,346 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-07 01:42:04,346 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [788503843] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-07 01:42:04,346 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 6 imperfect interpolant sequences. [2021-11-07 01:42:04,346 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5, 5, 4, 4] total 10 [2021-11-07 01:42:04,347 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1977240777] [2021-11-07 01:42:04,347 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-07 01:42:04,348 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:42:04,348 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-07 01:42:04,348 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2021-11-07 01:42:04,349 INFO L87 Difference]: Start difference. First operand 447 states and 563 transitions. Second operand has 10 states, 10 states have (on average 8.1) internal successors, (81), 10 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:42:04,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:42:04,738 INFO L93 Difference]: Finished difference Result 857 states and 1093 transitions. [2021-11-07 01:42:04,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-07 01:42:04,752 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 8.1) internal successors, (81), 10 states have internal predecessors, (81), 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 67 [2021-11-07 01:42:04,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:42:04,755 INFO L225 Difference]: With dead ends: 857 [2021-11-07 01:42:04,755 INFO L226 Difference]: Without dead ends: 455 [2021-11-07 01:42:04,756 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 400 GetRequests, 390 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=52, Invalid=80, Unknown=0, NotChecked=0, Total=132 [2021-11-07 01:42:04,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 455 states. [2021-11-07 01:42:04,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 455 to 455. [2021-11-07 01:42:04,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 455 states, 424 states have (on average 1.346698113207547) internal successors, (571), 454 states have internal predecessors, (571), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:42:04,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 455 states to 455 states and 571 transitions. [2021-11-07 01:42:04,775 INFO L78 Accepts]: Start accepts. Automaton has 455 states and 571 transitions. Word has length 67 [2021-11-07 01:42:04,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:42:04,776 INFO L470 AbstractCegarLoop]: Abstraction has 455 states and 571 transitions. [2021-11-07 01:42:04,776 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.1) internal successors, (81), 10 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:42:04,776 INFO L276 IsEmpty]: Start isEmpty. Operand 455 states and 571 transitions. [2021-11-07 01:42:04,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2021-11-07 01:42:04,778 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:42:04,778 INFO L513 BasicCegarLoop]: trace histogram [6, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:42:04,800 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbdb894a-4ca3-4d80-aaa0-adc8d099a7c9/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-07 01:42:04,999 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbdb894a-4ca3-4d80-aaa0-adc8d099a7c9/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (9)] Forceful destruction successful, exit code 0 [2021-11-07 01:42:05,225 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbdb894a-4ca3-4d80-aaa0-adc8d099a7c9/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2021-11-07 01:42:05,396 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbdb894a-4ca3-4d80-aaa0-adc8d099a7c9/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbdb894a-4ca3-4d80-aaa0-adc8d099a7c9/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbdb894a-4ca3-4d80-aaa0-adc8d099a7c9/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 01:42:05,397 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2021-11-07 01:42:05,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:42:05,397 INFO L85 PathProgramCache]: Analyzing trace with hash -2058382096, now seen corresponding path program 2 times [2021-11-07 01:42:05,398 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:42:05,398 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [376938069] [2021-11-07 01:42:05,398 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-07 01:42:05,399 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:42:05,399 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbdb894a-4ca3-4d80-aaa0-adc8d099a7c9/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:42:05,416 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbdb894a-4ca3-4d80-aaa0-adc8d099a7c9/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:42:05,440 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbdb894a-4ca3-4d80-aaa0-adc8d099a7c9/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-11-07 01:42:06,797 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-07 01:42:06,797 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-07 01:42:06,848 INFO L263 TraceCheckSpWp]: Trace formula consists of 257 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-07 01:42:06,851 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:42:07,240 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2021-11-07 01:42:07,240 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:42:07,756 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2021-11-07 01:42:07,757 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:42:07,757 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [376938069] [2021-11-07 01:42:07,757 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [376938069] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-07 01:42:07,757 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [478606688] [2021-11-07 01:42:07,757 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-07 01:42:07,757 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-07 01:42:07,758 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbdb894a-4ca3-4d80-aaa0-adc8d099a7c9/bin/utaipan-UUZaoUuFF8/cvc4 [2021-11-07 01:42:07,763 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbdb894a-4ca3-4d80-aaa0-adc8d099a7c9/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-07 01:42:07,771 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbdb894a-4ca3-4d80-aaa0-adc8d099a7c9/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (12)] Waiting until timeout for monitored process [2021-11-07 01:42:21,891 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-07 01:42:21,892 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-07 01:42:21,947 INFO L263 TraceCheckSpWp]: Trace formula consists of 257 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-07 01:42:21,950 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:42:22,200 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2021-11-07 01:42:22,201 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:42:22,427 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2021-11-07 01:42:22,427 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [478606688] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-07 01:42:22,428 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [576500279] [2021-11-07 01:42:22,428 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-07 01:42:22,428 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 01:42:22,428 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbdb894a-4ca3-4d80-aaa0-adc8d099a7c9/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 01:42:22,431 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbdb894a-4ca3-4d80-aaa0-adc8d099a7c9/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 01:42:22,433 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbdb894a-4ca3-4d80-aaa0-adc8d099a7c9/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process