./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/heap-manipulation/bubble_sort_linux-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_8c4da8aa-e2ee-470f-902f-37e9e57d077a/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c4da8aa-e2ee-470f-902f-37e9e57d077a/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_8c4da8aa-e2ee-470f-902f-37e9e57d077a/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c4da8aa-e2ee-470f-902f-37e9e57d077a/bin/utaipan-UUZaoUuFF8/config/TaipanReach.xml -i ../../sv-benchmarks/c/heap-manipulation/bubble_sort_linux-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c4da8aa-e2ee-470f-902f-37e9e57d077a/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_8c4da8aa-e2ee-470f-902f-37e9e57d077a/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 3b13662719be51a1d3330a7f40f7706daa8c7b2d4044bc92f854095c09c7c129 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 00:54:02,027 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 00:54:02,029 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 00:54:02,081 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 00:54:02,081 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 00:54:02,083 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 00:54:02,084 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 00:54:02,087 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 00:54:02,089 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 00:54:02,090 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 00:54:02,091 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 00:54:02,093 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 00:54:02,093 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 00:54:02,095 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 00:54:02,096 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 00:54:02,098 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 00:54:02,099 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 00:54:02,100 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 00:54:02,102 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 00:54:02,104 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 00:54:02,106 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 00:54:02,110 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 00:54:02,111 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 00:54:02,113 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 00:54:02,117 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 00:54:02,121 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 00:54:02,121 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 00:54:02,123 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 00:54:02,123 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 00:54:02,124 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 00:54:02,125 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 00:54:02,126 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 00:54:02,126 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 00:54:02,127 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 00:54:02,129 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 00:54:02,129 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 00:54:02,130 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 00:54:02,130 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 00:54:02,131 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 00:54:02,132 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 00:54:02,132 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 00:54:02,134 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c4da8aa-e2ee-470f-902f-37e9e57d077a/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-07 00:54:02,160 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 00:54:02,161 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 00:54:02,162 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 00:54:02,162 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 00:54:02,162 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 00:54:02,162 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 00:54:02,162 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-07 00:54:02,163 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 00:54:02,163 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 00:54:02,163 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-07 00:54:02,163 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-07 00:54:02,164 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 00:54:02,164 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-07 00:54:02,164 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-07 00:54:02,164 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-07 00:54:02,165 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 00:54:02,165 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-07 00:54:02,165 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 00:54:02,166 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-07 00:54:02,166 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 00:54:02,166 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 00:54:02,166 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 00:54:02,166 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 00:54:02,167 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 00:54:02,167 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-07 00:54:02,167 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 00:54:02,167 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 00:54:02,168 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 00:54:02,168 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 00:54:02,168 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 00:54:02,168 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 00:54:02,169 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 00:54:02,169 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 00:54:02,169 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 00:54:02,169 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-07 00:54:02,170 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 00:54:02,170 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 00:54:02,170 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 00:54:02,170 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 00:54:02,171 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_8c4da8aa-e2ee-470f-902f-37e9e57d077a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c4da8aa-e2ee-470f-902f-37e9e57d077a/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3b13662719be51a1d3330a7f40f7706daa8c7b2d4044bc92f854095c09c7c129 [2021-11-07 00:54:02,420 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 00:54:02,445 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 00:54:02,449 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 00:54:02,451 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 00:54:02,451 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 00:54:02,452 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c4da8aa-e2ee-470f-902f-37e9e57d077a/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/heap-manipulation/bubble_sort_linux-2.i [2021-11-07 00:54:02,519 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c4da8aa-e2ee-470f-902f-37e9e57d077a/bin/utaipan-UUZaoUuFF8/data/5bae2b61b/00acf32f1d2845168f89cc5d73f570da/FLAG125fbafe2 [2021-11-07 00:54:03,098 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 00:54:03,099 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c4da8aa-e2ee-470f-902f-37e9e57d077a/sv-benchmarks/c/heap-manipulation/bubble_sort_linux-2.i [2021-11-07 00:54:03,115 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c4da8aa-e2ee-470f-902f-37e9e57d077a/bin/utaipan-UUZaoUuFF8/data/5bae2b61b/00acf32f1d2845168f89cc5d73f570da/FLAG125fbafe2 [2021-11-07 00:54:03,382 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c4da8aa-e2ee-470f-902f-37e9e57d077a/bin/utaipan-UUZaoUuFF8/data/5bae2b61b/00acf32f1d2845168f89cc5d73f570da [2021-11-07 00:54:03,389 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 00:54:03,392 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 00:54:03,395 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 00:54:03,395 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 00:54:03,399 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 00:54:03,400 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:54:03" (1/1) ... [2021-11-07 00:54:03,403 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@58179c83 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:54:03, skipping insertion in model container [2021-11-07 00:54:03,403 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:54:03" (1/1) ... [2021-11-07 00:54:03,410 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 00:54:03,481 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 00:54:04,029 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_8c4da8aa-e2ee-470f-902f-37e9e57d077a/sv-benchmarks/c/heap-manipulation/bubble_sort_linux-2.i[33822,33835] [2021-11-07 00:54:04,054 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 00:54:04,056 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 00:54:04,057 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 00:54:04,086 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 00:54:04,095 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2021-11-07 00:54:04,096 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@418d96f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:54:04, skipping insertion in model container [2021-11-07 00:54:04,096 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 00:54:04,096 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-07 00:54:04,098 INFO L168 Benchmark]: Toolchain (without parser) took 705.29 ms. Allocated memory was 90.2 MB in the beginning and 109.1 MB in the end (delta: 18.9 MB). Free memory was 58.7 MB in the beginning and 80.6 MB in the end (delta: -21.9 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-11-07 00:54:04,099 INFO L168 Benchmark]: CDTParser took 0.85 ms. Allocated memory is still 90.2 MB. Free memory is still 51.8 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 00:54:04,100 INFO L168 Benchmark]: CACSL2BoogieTranslator took 701.24 ms. Allocated memory was 90.2 MB in the beginning and 109.1 MB in the end (delta: 18.9 MB). Free memory was 58.4 MB in the beginning and 80.6 MB in the end (delta: -22.1 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-11-07 00:54:04,102 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.85 ms. Allocated memory is still 90.2 MB. Free memory is still 51.8 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 701.24 ms. Allocated memory was 90.2 MB in the beginning and 109.1 MB in the end (delta: 18.9 MB). Free memory was 58.4 MB in the beginning and 80.6 MB in the end (delta: -22.1 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 860]: 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_8c4da8aa-e2ee-470f-902f-37e9e57d077a/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c4da8aa-e2ee-470f-902f-37e9e57d077a/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_8c4da8aa-e2ee-470f-902f-37e9e57d077a/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c4da8aa-e2ee-470f-902f-37e9e57d077a/bin/utaipan-UUZaoUuFF8/config/TaipanReach.xml -i ../../sv-benchmarks/c/heap-manipulation/bubble_sort_linux-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c4da8aa-e2ee-470f-902f-37e9e57d077a/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_8c4da8aa-e2ee-470f-902f-37e9e57d077a/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 3b13662719be51a1d3330a7f40f7706daa8c7b2d4044bc92f854095c09c7c129 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 00:54:06,153 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 00:54:06,155 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 00:54:06,184 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 00:54:06,185 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 00:54:06,187 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 00:54:06,188 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 00:54:06,191 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 00:54:06,193 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 00:54:06,194 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 00:54:06,195 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 00:54:06,197 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 00:54:06,197 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 00:54:06,199 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 00:54:06,200 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 00:54:06,202 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 00:54:06,203 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 00:54:06,204 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 00:54:06,206 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 00:54:06,208 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 00:54:06,210 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 00:54:06,211 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 00:54:06,213 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 00:54:06,214 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 00:54:06,217 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 00:54:06,218 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 00:54:06,218 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 00:54:06,219 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 00:54:06,220 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 00:54:06,221 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 00:54:06,222 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 00:54:06,222 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 00:54:06,223 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 00:54:06,224 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 00:54:06,226 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 00:54:06,226 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 00:54:06,227 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 00:54:06,228 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 00:54:06,228 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 00:54:06,229 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 00:54:06,230 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 00:54:06,231 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c4da8aa-e2ee-470f-902f-37e9e57d077a/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-11-07 00:54:06,257 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 00:54:06,258 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 00:54:06,259 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 00:54:06,259 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 00:54:06,260 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 00:54:06,260 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 00:54:06,261 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 00:54:06,261 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 00:54:06,262 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 00:54:06,262 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 00:54:06,263 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-07 00:54:06,263 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-07 00:54:06,264 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 00:54:06,264 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 00:54:06,265 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 00:54:06,265 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 00:54:06,266 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 00:54:06,266 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-07 00:54:06,266 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-07 00:54:06,267 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-07 00:54:06,267 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 00:54:06,268 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 00:54:06,268 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 00:54:06,269 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 00:54:06,269 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 00:54:06,269 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 00:54:06,270 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 00:54:06,270 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 00:54:06,270 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 00:54:06,271 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 00:54:06,271 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-07 00:54:06,271 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-07 00:54:06,272 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 00:54:06,272 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 00:54:06,272 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 00:54:06,272 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_8c4da8aa-e2ee-470f-902f-37e9e57d077a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c4da8aa-e2ee-470f-902f-37e9e57d077a/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3b13662719be51a1d3330a7f40f7706daa8c7b2d4044bc92f854095c09c7c129 [2021-11-07 00:54:06,679 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 00:54:06,707 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 00:54:06,710 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 00:54:06,711 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 00:54:06,714 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 00:54:06,716 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c4da8aa-e2ee-470f-902f-37e9e57d077a/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/heap-manipulation/bubble_sort_linux-2.i [2021-11-07 00:54:06,777 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c4da8aa-e2ee-470f-902f-37e9e57d077a/bin/utaipan-UUZaoUuFF8/data/28912dad0/176ed1e08ac445468ed1ed992aefa708/FLAGdc031569f [2021-11-07 00:54:07,346 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 00:54:07,347 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c4da8aa-e2ee-470f-902f-37e9e57d077a/sv-benchmarks/c/heap-manipulation/bubble_sort_linux-2.i [2021-11-07 00:54:07,366 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c4da8aa-e2ee-470f-902f-37e9e57d077a/bin/utaipan-UUZaoUuFF8/data/28912dad0/176ed1e08ac445468ed1ed992aefa708/FLAGdc031569f [2021-11-07 00:54:07,606 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c4da8aa-e2ee-470f-902f-37e9e57d077a/bin/utaipan-UUZaoUuFF8/data/28912dad0/176ed1e08ac445468ed1ed992aefa708 [2021-11-07 00:54:07,609 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 00:54:07,610 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 00:54:07,617 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 00:54:07,617 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 00:54:07,632 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 00:54:07,633 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:54:07" (1/1) ... [2021-11-07 00:54:07,634 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1e484b39 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:54:07, skipping insertion in model container [2021-11-07 00:54:07,635 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:54:07" (1/1) ... [2021-11-07 00:54:07,643 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 00:54:07,707 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 00:54:08,150 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_8c4da8aa-e2ee-470f-902f-37e9e57d077a/sv-benchmarks/c/heap-manipulation/bubble_sort_linux-2.i[33822,33835] [2021-11-07 00:54:08,189 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 00:54:08,201 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-07 00:54:08,213 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 00:54:08,240 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_8c4da8aa-e2ee-470f-902f-37e9e57d077a/sv-benchmarks/c/heap-manipulation/bubble_sort_linux-2.i[33822,33835] [2021-11-07 00:54:08,265 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 00:54:08,275 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 00:54:08,326 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_8c4da8aa-e2ee-470f-902f-37e9e57d077a/sv-benchmarks/c/heap-manipulation/bubble_sort_linux-2.i[33822,33835] [2021-11-07 00:54:08,355 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 00:54:08,430 INFO L208 MainTranslator]: Completed translation [2021-11-07 00:54:08,431 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:54:08 WrapperNode [2021-11-07 00:54:08,431 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 00:54:08,432 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 00:54:08,432 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 00:54:08,433 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 00:54:08,439 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:54:08" (1/1) ... [2021-11-07 00:54:08,478 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:54:08" (1/1) ... [2021-11-07 00:54:08,546 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 00:54:08,547 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 00:54:08,547 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 00:54:08,548 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 00:54:08,556 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:54:08" (1/1) ... [2021-11-07 00:54:08,556 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:54:08" (1/1) ... [2021-11-07 00:54:08,578 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:54:08" (1/1) ... [2021-11-07 00:54:08,578 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:54:08" (1/1) ... [2021-11-07 00:54:08,629 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:54:08" (1/1) ... [2021-11-07 00:54:08,642 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:54:08" (1/1) ... [2021-11-07 00:54:08,650 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:54:08" (1/1) ... [2021-11-07 00:54:08,656 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 00:54:08,657 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 00:54:08,658 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 00:54:08,658 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 00:54:08,658 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:54:08" (1/1) ... [2021-11-07 00:54:08,665 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 00:54:08,678 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c4da8aa-e2ee-470f-902f-37e9e57d077a/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 00:54:08,692 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c4da8aa-e2ee-470f-902f-37e9e57d077a/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-07 00:54:08,711 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c4da8aa-e2ee-470f-902f-37e9e57d077a/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-07 00:54:08,740 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-07 00:54:08,741 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 00:54:08,743 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-07 00:54:08,743 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-07 00:54:08,746 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-07 00:54:08,746 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-07 00:54:08,746 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-07 00:54:08,747 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-07 00:54:08,747 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-07 00:54:08,747 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 00:54:08,747 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 00:54:09,874 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 00:54:09,874 INFO L299 CfgBuilder]: Removed 178 assume(true) statements. [2021-11-07 00:54:09,877 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:54:09 BoogieIcfgContainer [2021-11-07 00:54:09,877 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 00:54:09,878 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 00:54:09,878 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 00:54:09,881 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 00:54:09,881 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 12:54:07" (1/3) ... [2021-11-07 00:54:09,882 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@394c09d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:54:09, skipping insertion in model container [2021-11-07 00:54:09,882 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:54:08" (2/3) ... [2021-11-07 00:54:09,883 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@394c09d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:54:09, skipping insertion in model container [2021-11-07 00:54:09,883 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:54:09" (3/3) ... [2021-11-07 00:54:09,884 INFO L111 eAbstractionObserver]: Analyzing ICFG bubble_sort_linux-2.i [2021-11-07 00:54:09,889 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 00:54:09,889 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 34 error locations. [2021-11-07 00:54:09,935 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 00:54:09,941 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-07 00:54:09,942 INFO L340 AbstractCegarLoop]: Starting to check reachability of 34 error locations. [2021-11-07 00:54:09,961 INFO L276 IsEmpty]: Start isEmpty. Operand has 198 states, 163 states have (on average 1.9325153374233128) internal successors, (315), 197 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 00:54:09,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-11-07 00:54:09,965 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 00:54:09,966 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-11-07 00:54:09,966 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-07 00:54:09,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 00:54:09,971 INFO L85 PathProgramCache]: Analyzing trace with hash 890491911, now seen corresponding path program 1 times [2021-11-07 00:54:09,982 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 00:54:09,983 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [619582289] [2021-11-07 00:54:09,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 00:54:09,984 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 00:54:09,984 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c4da8aa-e2ee-470f-902f-37e9e57d077a/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 00:54:09,987 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c4da8aa-e2ee-470f-902f-37e9e57d077a/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 00:54:09,995 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c4da8aa-e2ee-470f-902f-37e9e57d077a/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-07 00:54:10,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 00:54:10,079 INFO L263 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-07 00:54:10,083 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 00:54:10,145 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 00:54:10,146 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 00:54:10,163 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 00:54:10,164 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 00:54:10,164 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [619582289] [2021-11-07 00:54:10,165 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [619582289] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 00:54:10,165 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 00:54:10,165 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-07 00:54:10,167 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1736737847] [2021-11-07 00:54:10,171 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-07 00:54:10,171 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 00:54:10,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-07 00:54:10,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-07 00:54:10,186 INFO L87 Difference]: Start difference. First operand has 198 states, 163 states have (on average 1.9325153374233128) internal successors, (315), 197 states have internal predecessors, (315), 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 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 00:54:10,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 00:54:10,226 INFO L93 Difference]: Finished difference Result 386 states and 620 transitions. [2021-11-07 00:54:10,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-07 00:54:10,227 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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 6 [2021-11-07 00:54:10,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 00:54:10,236 INFO L225 Difference]: With dead ends: 386 [2021-11-07 00:54:10,236 INFO L226 Difference]: Without dead ends: 182 [2021-11-07 00:54:10,239 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-07 00:54:10,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2021-11-07 00:54:10,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 182. [2021-11-07 00:54:10,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 182 states, 152 states have (on average 1.230263157894737) internal successors, (187), 181 states have internal predecessors, (187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 00:54:10,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 187 transitions. [2021-11-07 00:54:10,277 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 187 transitions. Word has length 6 [2021-11-07 00:54:10,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 00:54:10,277 INFO L470 AbstractCegarLoop]: Abstraction has 182 states and 187 transitions. [2021-11-07 00:54:10,277 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 00:54:10,277 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 187 transitions. [2021-11-07 00:54:10,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-11-07 00:54:10,278 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 00:54:10,278 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 00:54:10,297 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c4da8aa-e2ee-470f-902f-37e9e57d077a/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-07 00:54:10,497 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c4da8aa-e2ee-470f-902f-37e9e57d077a/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 00:54:10,497 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-07 00:54:10,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 00:54:10,498 INFO L85 PathProgramCache]: Analyzing trace with hash -670460105, now seen corresponding path program 1 times [2021-11-07 00:54:10,499 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 00:54:10,500 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1228962278] [2021-11-07 00:54:10,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 00:54:10,500 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 00:54:10,500 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c4da8aa-e2ee-470f-902f-37e9e57d077a/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 00:54:10,513 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c4da8aa-e2ee-470f-902f-37e9e57d077a/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 00:54:10,514 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c4da8aa-e2ee-470f-902f-37e9e57d077a/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-07 00:54:10,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 00:54:10,622 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-07 00:54:10,624 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 00:54:10,732 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 00:54:10,733 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 00:54:10,781 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 00:54:10,781 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 00:54:10,782 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1228962278] [2021-11-07 00:54:10,782 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1228962278] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 00:54:10,782 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 00:54:10,782 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-07 00:54:10,782 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [164224214] [2021-11-07 00:54:10,784 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 00:54:10,784 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 00:54:10,785 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 00:54:10,785 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 00:54:10,785 INFO L87 Difference]: Start difference. First operand 182 states and 187 transitions. Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 00:54:11,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 00:54:11,206 INFO L93 Difference]: Finished difference Result 182 states and 187 transitions. [2021-11-07 00:54:11,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 00:54:11,207 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 3 states have internal predecessors, (13), 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 13 [2021-11-07 00:54:11,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 00:54:11,209 INFO L225 Difference]: With dead ends: 182 [2021-11-07 00:54:11,209 INFO L226 Difference]: Without dead ends: 178 [2021-11-07 00:54:11,210 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-07 00:54:11,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178 states. [2021-11-07 00:54:11,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178 to 178. [2021-11-07 00:54:11,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 178 states, 150 states have (on average 1.22) internal successors, (183), 177 states have internal predecessors, (183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 00:54:11,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 183 transitions. [2021-11-07 00:54:11,240 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 183 transitions. Word has length 13 [2021-11-07 00:54:11,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 00:54:11,241 INFO L470 AbstractCegarLoop]: Abstraction has 178 states and 183 transitions. [2021-11-07 00:54:11,242 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 00:54:11,242 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 183 transitions. [2021-11-07 00:54:11,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-11-07 00:54:11,243 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 00:54:11,243 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 00:54:11,260 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c4da8aa-e2ee-470f-902f-37e9e57d077a/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-07 00:54:11,456 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c4da8aa-e2ee-470f-902f-37e9e57d077a/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 00:54:11,457 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-07 00:54:11,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 00:54:11,458 INFO L85 PathProgramCache]: Analyzing trace with hash -2073220537, now seen corresponding path program 1 times [2021-11-07 00:54:11,458 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 00:54:11,459 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [211144212] [2021-11-07 00:54:11,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 00:54:11,459 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 00:54:11,459 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c4da8aa-e2ee-470f-902f-37e9e57d077a/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 00:54:11,460 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c4da8aa-e2ee-470f-902f-37e9e57d077a/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 00:54:11,503 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c4da8aa-e2ee-470f-902f-37e9e57d077a/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-07 00:54:11,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 00:54:11,636 INFO L263 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 24 conjunts are in the unsatisfiable core [2021-11-07 00:54:11,638 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 00:54:11,758 INFO L354 Elim1Store]: treesize reduction 77, result has 29.4 percent of original size [2021-11-07 00:54:11,759 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 15 treesize of output 37 [2021-11-07 00:54:12,089 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-07 00:54:12,090 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 18 [2021-11-07 00:54:12,179 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:54:12,180 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:54:12,182 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:54:12,257 INFO L354 Elim1Store]: treesize reduction 111, result has 20.1 percent of original size [2021-11-07 00:54:12,258 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 91 treesize of output 56 [2021-11-07 00:54:12,603 INFO L354 Elim1Store]: treesize reduction 53, result has 22.1 percent of original size [2021-11-07 00:54:12,603 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 7 case distinctions, treesize of input 58 treesize of output 69 [2021-11-07 00:54:13,792 INFO L354 Elim1Store]: treesize reduction 101, result has 28.4 percent of original size [2021-11-07 00:54:13,793 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 3 disjoint index pairs (out of 15 index pairs), introduced 8 new quantified variables, introduced 15 case distinctions, treesize of input 79 treesize of output 80 [2021-11-07 00:54:13,876 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 00:54:13,876 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 00:54:14,259 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 00:54:14,260 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 00:54:14,260 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [211144212] [2021-11-07 00:54:14,260 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [211144212] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 00:54:14,260 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 00:54:14,260 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 13 [2021-11-07 00:54:14,261 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [914587558] [2021-11-07 00:54:14,262 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-11-07 00:54:14,262 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 00:54:14,265 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-11-07 00:54:14,265 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2021-11-07 00:54:14,265 INFO L87 Difference]: Start difference. First operand 178 states and 183 transitions. Second operand has 14 states, 14 states have (on average 2.2142857142857144) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 00:54:43,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 00:54:43,968 INFO L93 Difference]: Finished difference Result 270 states and 278 transitions. [2021-11-07 00:54:43,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-07 00:54:43,969 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 2.2142857142857144) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2021-11-07 00:54:43,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 00:54:43,972 INFO L225 Difference]: With dead ends: 270 [2021-11-07 00:54:43,972 INFO L226 Difference]: Without dead ends: 266 [2021-11-07 00:54:43,973 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 15.0s TimeCoverageRelationStatistics Valid=106, Invalid=267, Unknown=7, NotChecked=0, Total=380 [2021-11-07 00:54:43,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2021-11-07 00:54:43,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 191. [2021-11-07 00:54:43,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 191 states, 164 states have (on average 1.2134146341463414) internal successors, (199), 190 states have internal predecessors, (199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 00:54:43,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 199 transitions. [2021-11-07 00:54:43,992 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 199 transitions. Word has length 16 [2021-11-07 00:54:43,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 00:54:43,993 INFO L470 AbstractCegarLoop]: Abstraction has 191 states and 199 transitions. [2021-11-07 00:54:43,993 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 2.2142857142857144) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 00:54:43,993 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 199 transitions. [2021-11-07 00:54:43,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-11-07 00:54:43,994 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 00:54:43,994 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 00:54:44,010 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c4da8aa-e2ee-470f-902f-37e9e57d077a/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-07 00:54:44,208 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c4da8aa-e2ee-470f-902f-37e9e57d077a/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 00:54:44,209 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-07 00:54:44,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 00:54:44,210 INFO L85 PathProgramCache]: Analyzing trace with hash -1677440309, now seen corresponding path program 1 times [2021-11-07 00:54:44,210 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 00:54:44,210 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [876383276] [2021-11-07 00:54:44,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 00:54:44,211 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 00:54:44,211 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c4da8aa-e2ee-470f-902f-37e9e57d077a/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 00:54:44,214 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c4da8aa-e2ee-470f-902f-37e9e57d077a/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 00:54:44,225 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c4da8aa-e2ee-470f-902f-37e9e57d077a/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-07 00:54:44,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 00:54:44,480 INFO L263 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 34 conjunts are in the unsatisfiable core [2021-11-07 00:54:44,484 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 00:54:44,615 INFO L354 Elim1Store]: treesize reduction 77, result has 29.4 percent of original size [2021-11-07 00:54:44,615 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 15 treesize of output 37 [2021-11-07 00:54:44,897 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-07 00:54:44,897 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 20 treesize of output 20 [2021-11-07 00:54:44,990 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:44,992 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 689 [2021-11-07 00:54:45,002 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:54:45,011 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 459 treesize of output 275 [2021-11-07 00:54:45,452 INFO L354 Elim1Store]: treesize reduction 157, result has 14.2 percent of original size [2021-11-07 00:54:45,453 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 419 treesize of output 430 [2021-11-07 00:54:45,592 INFO L354 Elim1Store]: treesize reduction 189, result has 10.0 percent of original size [2021-11-07 00:54:45,593 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 196 treesize of output 98 [2021-11-07 00:54:45,615 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:45,617 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 150 [2021-11-07 00:54:45,623 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:54:45,631 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 127 treesize of output 117 [2021-11-07 00:54:45,649 INFO L883 QuantifierPusher]: Run 10 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-11-07 00:54:45,654 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 40 [2021-11-07 00:54:45,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:54:46,937 INFO L354 Elim1Store]: treesize reduction 162, result has 21.7 percent of original size [2021-11-07 00:54:46,938 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 10 case distinctions, treesize of input 79 treesize of output 73 [2021-11-07 00:54:50,221 INFO L354 Elim1Store]: treesize reduction 92, result has 18.6 percent of original size [2021-11-07 00:54:50,221 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 10 case distinctions, treesize of input 80 treesize of output 55 [2021-11-07 00:54:50,282 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 00:54:50,282 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 00:54:50,532 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:50,534 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1240 [2021-11-07 00:54:50,539 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:54:50,546 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1457 [2021-11-07 00:55:17,825 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 00:55:17,825 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 00:55:17,825 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [876383276] [2021-11-07 00:55:17,825 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [876383276] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 00:55:17,826 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 00:55:17,826 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 12 [2021-11-07 00:55:17,826 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [752178423] [2021-11-07 00:55:17,826 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-07 00:55:17,827 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 00:55:17,827 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-07 00:55:17,828 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=117, Unknown=8, NotChecked=0, Total=156 [2021-11-07 00:55:17,828 INFO L87 Difference]: Start difference. First operand 191 states and 199 transitions. Second operand has 13 states, 13 states have (on average 2.769230769230769) internal successors, (36), 12 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 00:55:21,357 WARN L838 $PredicateComparison]: unable to prove that (and (= (select (select |c_#memory_$Pointer$.base| |c_~#gl_list~0.base|) |c_~#gl_list~0.offset|) c_ULTIMATE.start_gl_insert_~node~1.base) (not (= |c_~#gl_list~0.base| c_ULTIMATE.start_gl_insert_~node~1.base)) (= |c_~#gl_list~0.offset| (_ bv0 32)) (exists ((ULTIMATE.start___list_add_~new.offset (_ BitVec 32))) (let ((.cse1 (select |c_#memory_$Pointer$.base| c_ULTIMATE.start_gl_insert_~node~1.base))) (let ((.cse0 (select .cse1 ULTIMATE.start___list_add_~new.offset))) (and (= (select (select |c_#memory_$Pointer$.base| .cse0) (bvadd (_ bv4 32) |c_~#gl_list~0.offset|)) c_ULTIMATE.start_gl_insert_~node~1.base) (= .cse0 |c_~#gl_list~0.base|) (= (select .cse1 (bvadd (_ bv4 32) ULTIMATE.start___list_add_~new.offset)) |c_~#gl_list~0.base|))))) (forall ((v_ULTIMATE.start_gl_insert_~node~1.base_9 (_ BitVec 32))) (or (not (= (_ bv0 1) (bvneg (bvneg (bvneg (select |c_#valid| v_ULTIMATE.start_gl_insert_~node~1.base_9)))))) (forall ((v_DerPreprocessor_10 (_ BitVec 32)) (v_DerPreprocessor_13 (_ BitVec 32)) (ULTIMATE.start_gl_insert_~node~1.offset (_ BitVec 32)) (v_DerPreprocessor_14 (_ BitVec 32)) (v_DerPreprocessor_11 (_ BitVec 32)) (v_DerPreprocessor_12 (_ BitVec 32)) (v_DerPreprocessor_9 (_ BitVec 32)) (v_DerPreprocessor_15 (_ BitVec 32)) (v_DerPreprocessor_16 (_ BitVec 32)) (v_ULTIMATE.start___list_add_~new.offset_7 (_ BitVec 32))) (not (= (select (select (let ((.cse2 (let ((.cse3 (let ((.cse7 (bvadd ULTIMATE.start_gl_insert_~node~1.offset (_ bv1 32))) (.cse8 (bvadd (_ bv2 32) ULTIMATE.start_gl_insert_~node~1.offset)) (.cse9 (bvadd (_ bv3 32) ULTIMATE.start_gl_insert_~node~1.offset))) (let ((.cse6 (store |c_#memory_$Pointer$.base| v_ULTIMATE.start_gl_insert_~node~1.base_9 (store (store (store (store (select |c_#memory_$Pointer$.base| v_ULTIMATE.start_gl_insert_~node~1.base_9) ULTIMATE.start_gl_insert_~node~1.offset v_DerPreprocessor_9) .cse7 v_DerPreprocessor_10) .cse8 v_DerPreprocessor_11) .cse9 v_DerPreprocessor_12)))) (let ((.cse5 (select (select .cse6 |c_~#gl_list~0.base|) |c_~#gl_list~0.offset|))) (let ((.cse4 (store .cse6 .cse5 (store (select .cse6 .cse5) (bvadd (select (select (store |c_#memory_$Pointer$.offset| v_ULTIMATE.start_gl_insert_~node~1.base_9 (store (store (store (store (select |c_#memory_$Pointer$.offset| v_ULTIMATE.start_gl_insert_~node~1.base_9) ULTIMATE.start_gl_insert_~node~1.offset v_DerPreprocessor_13) .cse7 v_DerPreprocessor_14) .cse8 v_DerPreprocessor_15) .cse9 v_DerPreprocessor_16)) |c_~#gl_list~0.base|) |c_~#gl_list~0.offset|) (_ bv4 32)) v_ULTIMATE.start_gl_insert_~node~1.base_9)))) (store .cse4 v_ULTIMATE.start_gl_insert_~node~1.base_9 (store (store (select .cse4 v_ULTIMATE.start_gl_insert_~node~1.base_9) v_ULTIMATE.start___list_add_~new.offset_7 .cse5) (bvadd (_ bv4 32) v_ULTIMATE.start___list_add_~new.offset_7) |c_~#gl_list~0.base|)))))))) (store .cse3 |c_~#gl_list~0.base| (store (select .cse3 |c_~#gl_list~0.base|) |c_~#gl_list~0.offset| v_ULTIMATE.start_gl_insert_~node~1.base_9))))) (store .cse2 v_ULTIMATE.start_gl_insert_~node~1.base_9 (store (select .cse2 v_ULTIMATE.start_gl_insert_~node~1.base_9) (bvadd ULTIMATE.start_gl_insert_~node~1.offset (_ bv12 32)) v_ULTIMATE.start_gl_insert_~node~1.base_9))) |c_~#gl_list~0.base|) (bvadd (_ bv4 32) |c_~#gl_list~0.offset|)) |c_~#gl_list~0.base|)))))) is different from false [2021-11-07 00:55:31,128 WARN L207 SmtUtils]: Spent 9.06 s on a formula simplification. DAG size of input: 93 DAG size of output: 91 [2021-11-07 00:55:49,871 WARN L207 SmtUtils]: Spent 16.86 s on a formula simplification. DAG size of input: 114 DAG size of output: 112 [2021-11-07 00:56:18,674 WARN L207 SmtUtils]: Spent 15.75 s on a formula simplification. DAG size of input: 117 DAG size of output: 115 [2021-11-07 00:59:05,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 00:59:05,655 INFO L93 Difference]: Finished difference Result 364 states and 377 transitions. [2021-11-07 00:59:05,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-07 00:59:05,656 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 2.769230769230769) internal successors, (36), 12 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2021-11-07 00:59:05,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 00:59:05,659 INFO L225 Difference]: With dead ends: 364 [2021-11-07 00:59:05,659 INFO L226 Difference]: Without dead ends: 360 [2021-11-07 00:59:05,660 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 110.3s TimeCoverageRelationStatistics Valid=102, Invalid=298, Unknown=24, NotChecked=38, Total=462 [2021-11-07 00:59:05,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 360 states. [2021-11-07 00:59:05,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 360 to 268. [2021-11-07 00:59:05,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 268 states, 241 states have (on average 1.2157676348547717) internal successors, (293), 267 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 00:59:05,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 268 states to 268 states and 293 transitions. [2021-11-07 00:59:05,696 INFO L78 Accepts]: Start accepts. Automaton has 268 states and 293 transitions. Word has length 19 [2021-11-07 00:59:05,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 00:59:05,697 INFO L470 AbstractCegarLoop]: Abstraction has 268 states and 293 transitions. [2021-11-07 00:59:05,697 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 2.769230769230769) internal successors, (36), 12 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 00:59:05,697 INFO L276 IsEmpty]: Start isEmpty. Operand 268 states and 293 transitions. [2021-11-07 00:59:05,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-11-07 00:59:05,699 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 00:59:05,699 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] [2021-11-07 00:59:05,720 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c4da8aa-e2ee-470f-902f-37e9e57d077a/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-07 00:59:05,916 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c4da8aa-e2ee-470f-902f-37e9e57d077a/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 00:59:05,917 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-07 00:59:05,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 00:59:05,917 INFO L85 PathProgramCache]: Analyzing trace with hash -673877511, now seen corresponding path program 1 times [2021-11-07 00:59:05,918 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 00:59:05,918 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1212304223] [2021-11-07 00:59:05,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 00:59:05,918 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 00:59:05,919 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c4da8aa-e2ee-470f-902f-37e9e57d077a/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 00:59:05,920 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c4da8aa-e2ee-470f-902f-37e9e57d077a/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 00:59:05,921 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c4da8aa-e2ee-470f-902f-37e9e57d077a/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-07 00:59:06,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 00:59:06,163 INFO L263 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 34 conjunts are in the unsatisfiable core [2021-11-07 00:59:06,166 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 00:59:06,374 INFO L354 Elim1Store]: treesize reduction 77, result has 29.4 percent of original size [2021-11-07 00:59:06,375 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 15 treesize of output 37 [2021-11-07 00:59:06,907 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-07 00:59:06,907 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 16 [2021-11-07 00:59:07,088 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:59:07,090 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 689 [2021-11-07 00:59:07,100 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:59:07,107 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 459 treesize of output 275 [2021-11-07 00:59:08,016 INFO L354 Elim1Store]: treesize reduction 157, result has 14.2 percent of original size [2021-11-07 00:59:08,017 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 2479 treesize of output 2490 [2021-11-07 00:59:08,386 INFO L354 Elim1Store]: treesize reduction 189, result has 10.0 percent of original size [2021-11-07 00:59:08,386 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 196 treesize of output 98 [2021-11-07 00:59:08,393 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:59:08,395 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 150 [2021-11-07 00:59:08,401 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:59:08,406 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 127 treesize of output 117 [2021-11-07 00:59:08,532 INFO L883 QuantifierPusher]: Run 10 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-11-07 00:59:08,541 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 40 [2021-11-07 00:59:08,749 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:59:10,375 INFO L354 Elim1Store]: treesize reduction 162, result has 21.7 percent of original size [2021-11-07 00:59:10,376 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 10 case distinctions, treesize of input 87 treesize of output 77 [2021-11-07 00:59:16,303 INFO L354 Elim1Store]: treesize reduction 92, result has 18.6 percent of original size [2021-11-07 00:59:16,304 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 10 case distinctions, treesize of input 88 treesize of output 59 [2021-11-07 00:59:16,387 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 00:59:16,387 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 00:59:16,737 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:59:16,739 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1240 [2021-11-07 00:59:16,746 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:59:16,748 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1457 [2021-11-07 00:59:20,908 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_DerPreprocessor_31 (_ BitVec 32)) (v_DerPreprocessor_32 (_ BitVec 32)) (v_DerPreprocessor_30 (_ BitVec 32)) (ULTIMATE.start_gl_insert_~node~1.offset (_ BitVec 32)) (v_DerPreprocessor_25 (_ BitVec 32)) (v_DerPreprocessor_28 (_ BitVec 32)) (v_ULTIMATE.start___list_add_~new.offset_8 (_ BitVec 32)) (v_DerPreprocessor_29 (_ BitVec 32)) (v_DerPreprocessor_26 (_ BitVec 32)) (v_DerPreprocessor_27 (_ BitVec 32))) (not (= (select (select (let ((.cse0 (let ((.cse1 (let ((.cse5 (bvadd ULTIMATE.start_gl_insert_~node~1.offset (_ bv1 32))) (.cse6 (bvadd (_ bv2 32) ULTIMATE.start_gl_insert_~node~1.offset)) (.cse7 (bvadd (_ bv3 32) ULTIMATE.start_gl_insert_~node~1.offset))) (let ((.cse4 (store |c_#memory_$Pointer$.base| c_ULTIMATE.start_gl_insert_~node~1.base (store (store (store (store (select |c_#memory_$Pointer$.base| c_ULTIMATE.start_gl_insert_~node~1.base) ULTIMATE.start_gl_insert_~node~1.offset v_DerPreprocessor_25) .cse5 v_DerPreprocessor_26) .cse6 v_DerPreprocessor_27) .cse7 v_DerPreprocessor_28)))) (let ((.cse3 (select (select .cse4 |c_~#gl_list~0.base|) |c_~#gl_list~0.offset|))) (let ((.cse2 (store .cse4 .cse3 (store (select .cse4 .cse3) (bvadd (select (select (store |c_#memory_$Pointer$.offset| c_ULTIMATE.start_gl_insert_~node~1.base (store (store (store (store (select |c_#memory_$Pointer$.offset| c_ULTIMATE.start_gl_insert_~node~1.base) ULTIMATE.start_gl_insert_~node~1.offset v_DerPreprocessor_29) .cse5 v_DerPreprocessor_30) .cse6 v_DerPreprocessor_31) .cse7 v_DerPreprocessor_32)) |c_~#gl_list~0.base|) |c_~#gl_list~0.offset|) (_ bv4 32)) c_ULTIMATE.start_gl_insert_~node~1.base)))) (store .cse2 c_ULTIMATE.start_gl_insert_~node~1.base (store (store (select .cse2 c_ULTIMATE.start_gl_insert_~node~1.base) v_ULTIMATE.start___list_add_~new.offset_8 .cse3) (bvadd (_ bv4 32) v_ULTIMATE.start___list_add_~new.offset_8) |c_~#gl_list~0.base|)))))))) (store .cse1 |c_~#gl_list~0.base| (store (select .cse1 |c_~#gl_list~0.base|) |c_~#gl_list~0.offset| c_ULTIMATE.start_gl_insert_~node~1.base))))) (store .cse0 c_ULTIMATE.start_gl_insert_~node~1.base (store (select .cse0 c_ULTIMATE.start_gl_insert_~node~1.base) (bvadd ULTIMATE.start_gl_insert_~node~1.offset (_ bv12 32)) c_ULTIMATE.start_gl_insert_~node~1.base))) |c_~#gl_list~0.base|) (bvadd (_ bv4 32) |c_~#gl_list~0.offset|)) (_ bv0 32)))) is different from false [2021-11-07 00:59:29,847 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 00:59:29,848 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 00:59:29,848 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1212304223] [2021-11-07 00:59:29,848 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1212304223] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 00:59:29,848 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 00:59:29,849 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 12 [2021-11-07 00:59:29,849 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1653818294] [2021-11-07 00:59:29,849 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-07 00:59:29,850 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 00:59:29,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-07 00:59:29,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=105, Unknown=3, NotChecked=20, Total=156 [2021-11-07 00:59:29,851 INFO L87 Difference]: Start difference. First operand 268 states and 293 transitions. Second operand has 13 states, 13 states have (on average 3.230769230769231) internal successors, (42), 12 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 00:59:39,998 WARN L207 SmtUtils]: Spent 9.73 s on a formula simplification. DAG size of input: 90 DAG size of output: 85 [2021-11-07 01:00:24,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:00:24,481 INFO L93 Difference]: Finished difference Result 360 states and 373 transitions. [2021-11-07 01:00:24,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-07 01:00:24,482 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 3.230769230769231) internal successors, (42), 12 states have internal predecessors, (42), 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 22 [2021-11-07 01:00:24,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:00:24,485 INFO L225 Difference]: With dead ends: 360 [2021-11-07 01:00:24,485 INFO L226 Difference]: Without dead ends: 356 [2021-11-07 01:00:24,487 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 23.1s TimeCoverageRelationStatistics Valid=73, Invalid=234, Unknown=3, NotChecked=32, Total=342 [2021-11-07 01:00:24,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 356 states. [2021-11-07 01:00:24,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 356 to 271. [2021-11-07 01:00:24,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 271 states, 244 states have (on average 1.209016393442623) internal successors, (295), 270 states have internal predecessors, (295), 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 01:00:24,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 271 states to 271 states and 295 transitions. [2021-11-07 01:00:24,517 INFO L78 Accepts]: Start accepts. Automaton has 271 states and 295 transitions. Word has length 22 [2021-11-07 01:00:24,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:00:24,518 INFO L470 AbstractCegarLoop]: Abstraction has 271 states and 295 transitions. [2021-11-07 01:00:24,518 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 3.230769230769231) internal successors, (42), 12 states have internal predecessors, (42), 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 01:00:24,518 INFO L276 IsEmpty]: Start isEmpty. Operand 271 states and 295 transitions. [2021-11-07 01:00:24,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-11-07 01:00:24,520 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:00:24,520 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] [2021-11-07 01:00:24,536 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c4da8aa-e2ee-470f-902f-37e9e57d077a/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (6)] Ended with exit code 0 [2021-11-07 01:00:24,734 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c4da8aa-e2ee-470f-902f-37e9e57d077a/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:00:24,735 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-07 01:00:24,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:00:24,735 INFO L85 PathProgramCache]: Analyzing trace with hash -801887006, now seen corresponding path program 1 times [2021-11-07 01:00:24,735 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:00:24,736 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [723024339] [2021-11-07 01:00:24,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:00:24,736 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:00:24,736 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c4da8aa-e2ee-470f-902f-37e9e57d077a/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:00:24,737 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c4da8aa-e2ee-470f-902f-37e9e57d077a/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:00:24,738 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c4da8aa-e2ee-470f-902f-37e9e57d077a/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-07 01:00:25,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:00:25,028 INFO L263 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 42 conjunts are in the unsatisfiable core [2021-11-07 01:00:25,031 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:00:25,196 INFO L354 Elim1Store]: treesize reduction 77, result has 29.4 percent of original size [2021-11-07 01:00:25,196 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 15 treesize of output 37 [2021-11-07 01:00:25,559 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-07 01:00:25,560 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 15 [2021-11-07 01:00:25,763 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:00:25,765 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1024 [2021-11-07 01:00:25,773 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:00:25,780 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 610 treesize of output 410 [2021-11-07 01:00:25,791 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:00:25,794 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:00:25,797 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:00:25,801 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:00:25,804 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:00:25,808 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:00:25,816 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:00:25,819 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:00:25,821 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:00:25,824 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:00:25,826 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:00:25,828 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:00:25,830 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 370 treesize of output 381 [2021-11-07 01:00:25,843 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:00:26,977 INFO L354 Elim1Store]: treesize reduction 174, result has 7.0 percent of original size [2021-11-07 01:00:26,977 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 347 treesize of output 215 [2021-11-07 01:00:26,985 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:00:26,987 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 585 [2021-11-07 01:00:26,996 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:00:27,002 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 424 treesize of output 246 [2021-11-07 01:00:27,005 INFO L883 QuantifierPusher]: Run 10 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-11-07 01:00:27,014 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:00:27,017 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:00:27,020 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:00:27,024 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:00:27,027 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:00:27,030 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:00:27,038 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:00:27,041 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:00:27,044 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:00:27,048 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:00:27,051 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:00:27,054 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:00:27,056 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 184 treesize of output 195 [2021-11-07 01:00:27,069 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:00:27,072 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:00:27,106 INFO L354 Elim1Store]: treesize reduction 19, result has 32.1 percent of original size [2021-11-07 01:00:27,107 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 161 treesize of output 79 [2021-11-07 01:00:27,444 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:00:27,579 INFO L354 Elim1Store]: treesize reduction 254, result has 13.9 percent of original size [2021-11-07 01:00:27,580 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 158 treesize of output 133 [2021-11-07 01:00:27,593 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:00:27,712 INFO L354 Elim1Store]: treesize reduction 194, result has 16.7 percent of original size [2021-11-07 01:00:27,712 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 7 new quantified variables, introduced 10 case distinctions, treesize of input 150 treesize of output 131 [2021-11-07 01:00:29,218 INFO L354 Elim1Store]: treesize reduction 4, result has 66.7 percent of original size [2021-11-07 01:00:29,218 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 110 treesize of output 82 [2021-11-07 01:00:29,572 INFO L354 Elim1Store]: treesize reduction 22, result has 12.0 percent of original size [2021-11-07 01:00:29,572 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 7 new quantified variables, introduced 15 case distinctions, treesize of input 71 treesize of output 29 [2021-11-07 01:00:29,661 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 01:00:29,662 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:00:30,255 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:00:30,257 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4144 [2021-11-07 01:00:30,270 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:00:30,272 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5373 [2021-11-07 01:00:57,389 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_DerPreprocessor_42 (_ BitVec 32)) (v_DerPreprocessor_43 (_ BitVec 32)) (v_ULTIMATE.start_gl_insert_~node~1.base_11 (_ BitVec 32)) (v_DerPreprocessor_41 (_ BitVec 32)) (v_DerPreprocessor_46 (_ BitVec 32)) (v_DerPreprocessor_47 (_ BitVec 32)) (v_DerPreprocessor_44 (_ BitVec 32)) (v_DerPreprocessor_45 (_ BitVec 32)) (v_DerPreprocessor_48 (_ BitVec 32))) (or (not (let ((.cse6 (store |c_#memory_$Pointer$.offset| v_ULTIMATE.start_gl_insert_~node~1.base_11 (store (store (store (store (select |c_#memory_$Pointer$.offset| v_ULTIMATE.start_gl_insert_~node~1.base_11) (_ bv0 32) v_DerPreprocessor_45) (_ bv1 32) v_DerPreprocessor_46) (_ bv2 32) v_DerPreprocessor_47) (_ bv3 32) v_DerPreprocessor_48)))) (let ((.cse5 (select (select .cse6 |c_~#gl_list~0.base|) |c_~#gl_list~0.offset|)) (.cse13 (store |c_#memory_$Pointer$.base| v_ULTIMATE.start_gl_insert_~node~1.base_11 (store (store (store (store (select |c_#memory_$Pointer$.base| v_ULTIMATE.start_gl_insert_~node~1.base_11) (_ bv0 32) v_DerPreprocessor_41) (_ bv1 32) v_DerPreprocessor_42) (_ bv2 32) v_DerPreprocessor_43) (_ bv3 32) v_DerPreprocessor_44)))) (let ((.cse7 (select (select .cse13 |c_~#gl_list~0.base|) |c_~#gl_list~0.offset|)) (.cse8 (bvadd (_ bv4 32) .cse5))) (let ((.cse1 (let ((.cse10 (let ((.cse11 (let ((.cse12 (store .cse13 .cse7 (store (select .cse13 .cse7) .cse8 v_ULTIMATE.start_gl_insert_~node~1.base_11)))) (store .cse12 v_ULTIMATE.start_gl_insert_~node~1.base_11 (store (store (select .cse12 v_ULTIMATE.start_gl_insert_~node~1.base_11) (_ bv4 32) .cse7) (_ bv8 32) |c_~#gl_list~0.base|))))) (store .cse11 |c_~#gl_list~0.base| (store (select .cse11 |c_~#gl_list~0.base|) |c_~#gl_list~0.offset| v_ULTIMATE.start_gl_insert_~node~1.base_11))))) (store .cse10 v_ULTIMATE.start_gl_insert_~node~1.base_11 (store (select .cse10 v_ULTIMATE.start_gl_insert_~node~1.base_11) (_ bv12 32) v_ULTIMATE.start_gl_insert_~node~1.base_11)))) (.cse9 (bvadd (_ bv4 32) |c_~#gl_list~0.offset|))) (let ((.cse0 (select (select .cse1 |c_~#gl_list~0.base|) .cse9))) (= .cse0 (select (select .cse1 .cse0) (select (select (let ((.cse2 (let ((.cse3 (let ((.cse4 (store .cse6 .cse7 (store (select .cse6 .cse7) .cse8 (_ bv4 32))))) (store .cse4 v_ULTIMATE.start_gl_insert_~node~1.base_11 (store (store (select .cse4 v_ULTIMATE.start_gl_insert_~node~1.base_11) (_ bv4 32) .cse5) (_ bv8 32) |c_~#gl_list~0.offset|))))) (store .cse3 |c_~#gl_list~0.base| (store (select .cse3 |c_~#gl_list~0.base|) |c_~#gl_list~0.offset| (_ bv4 32)))))) (store .cse2 v_ULTIMATE.start_gl_insert_~node~1.base_11 (store (select .cse2 v_ULTIMATE.start_gl_insert_~node~1.base_11) (_ bv12 32) (_ bv12 32)))) |c_~#gl_list~0.base|) .cse9))))))))) (not (= (_ bv0 1) (bvneg (select |c_#valid| v_ULTIMATE.start_gl_insert_~node~1.base_11)))))) is different from false [2021-11-07 01:00:59,100 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 01:00:59,100 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:00:59,100 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [723024339] [2021-11-07 01:00:59,100 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [723024339] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:00:59,100 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:00:59,101 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [] total 14 [2021-11-07 01:00:59,101 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1598610120] [2021-11-07 01:00:59,102 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-11-07 01:00:59,102 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:00:59,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-11-07 01:00:59,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=148, Unknown=3, NotChecked=24, Total=210 [2021-11-07 01:00:59,103 INFO L87 Difference]: Start difference. First operand 271 states and 295 transitions. Second operand has 15 states, 15 states have (on average 3.2) internal successors, (48), 14 states have internal predecessors, (48), 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 01:01:01,333 WARN L838 $PredicateComparison]: unable to prove that (and (= |c_~#gl_list~0.base| (select (select |c_#memory_$Pointer$.base| |c_~#gl_list~0.base|) |c_~#gl_list~0.offset|)) (= (select (select |c_#memory_$Pointer$.offset| |c_~#gl_list~0.base|) |c_~#gl_list~0.offset|) |c_~#gl_list~0.offset|) (forall ((v_DerPreprocessor_42 (_ BitVec 32)) (v_DerPreprocessor_43 (_ BitVec 32)) (v_ULTIMATE.start_gl_insert_~node~1.base_11 (_ BitVec 32)) (v_DerPreprocessor_41 (_ BitVec 32)) (v_DerPreprocessor_46 (_ BitVec 32)) (v_DerPreprocessor_47 (_ BitVec 32)) (v_DerPreprocessor_44 (_ BitVec 32)) (v_DerPreprocessor_45 (_ BitVec 32)) (v_DerPreprocessor_48 (_ BitVec 32))) (or (not (let ((.cse6 (store |c_#memory_$Pointer$.offset| v_ULTIMATE.start_gl_insert_~node~1.base_11 (store (store (store (store (select |c_#memory_$Pointer$.offset| v_ULTIMATE.start_gl_insert_~node~1.base_11) (_ bv0 32) v_DerPreprocessor_45) (_ bv1 32) v_DerPreprocessor_46) (_ bv2 32) v_DerPreprocessor_47) (_ bv3 32) v_DerPreprocessor_48)))) (let ((.cse5 (select (select .cse6 |c_~#gl_list~0.base|) |c_~#gl_list~0.offset|)) (.cse13 (store |c_#memory_$Pointer$.base| v_ULTIMATE.start_gl_insert_~node~1.base_11 (store (store (store (store (select |c_#memory_$Pointer$.base| v_ULTIMATE.start_gl_insert_~node~1.base_11) (_ bv0 32) v_DerPreprocessor_41) (_ bv1 32) v_DerPreprocessor_42) (_ bv2 32) v_DerPreprocessor_43) (_ bv3 32) v_DerPreprocessor_44)))) (let ((.cse7 (select (select .cse13 |c_~#gl_list~0.base|) |c_~#gl_list~0.offset|)) (.cse8 (bvadd (_ bv4 32) .cse5))) (let ((.cse1 (let ((.cse10 (let ((.cse11 (let ((.cse12 (store .cse13 .cse7 (store (select .cse13 .cse7) .cse8 v_ULTIMATE.start_gl_insert_~node~1.base_11)))) (store .cse12 v_ULTIMATE.start_gl_insert_~node~1.base_11 (store (store (select .cse12 v_ULTIMATE.start_gl_insert_~node~1.base_11) (_ bv4 32) .cse7) (_ bv8 32) |c_~#gl_list~0.base|))))) (store .cse11 |c_~#gl_list~0.base| (store (select .cse11 |c_~#gl_list~0.base|) |c_~#gl_list~0.offset| v_ULTIMATE.start_gl_insert_~node~1.base_11))))) (store .cse10 v_ULTIMATE.start_gl_insert_~node~1.base_11 (store (select .cse10 v_ULTIMATE.start_gl_insert_~node~1.base_11) (_ bv12 32) v_ULTIMATE.start_gl_insert_~node~1.base_11)))) (.cse9 (bvadd (_ bv4 32) |c_~#gl_list~0.offset|))) (let ((.cse0 (select (select .cse1 |c_~#gl_list~0.base|) .cse9))) (= .cse0 (select (select .cse1 .cse0) (select (select (let ((.cse2 (let ((.cse3 (let ((.cse4 (store .cse6 .cse7 (store (select .cse6 .cse7) .cse8 (_ bv4 32))))) (store .cse4 v_ULTIMATE.start_gl_insert_~node~1.base_11 (store (store (select .cse4 v_ULTIMATE.start_gl_insert_~node~1.base_11) (_ bv4 32) .cse5) (_ bv8 32) |c_~#gl_list~0.offset|))))) (store .cse3 |c_~#gl_list~0.base| (store (select .cse3 |c_~#gl_list~0.base|) |c_~#gl_list~0.offset| (_ bv4 32)))))) (store .cse2 v_ULTIMATE.start_gl_insert_~node~1.base_11 (store (select .cse2 v_ULTIMATE.start_gl_insert_~node~1.base_11) (_ bv12 32) (_ bv12 32)))) |c_~#gl_list~0.base|) .cse9))))))))) (not (= (_ bv0 1) (bvneg (select |c_#valid| v_ULTIMATE.start_gl_insert_~node~1.base_11)))))) (= |c_~#gl_list~0.offset| (_ bv0 32)) (= (_ bv0 1) (bvadd (_ bv1 1) (bvneg (select |c_#valid| |c_~#gl_list~0.base|))))) is different from false [2021-11-07 01:02:09,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:02:09,022 INFO L93 Difference]: Finished difference Result 356 states and 369 transitions. [2021-11-07 01:02:09,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-07 01:02:09,023 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 3.2) internal successors, (48), 14 states have internal predecessors, (48), 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 25 [2021-11-07 01:02:09,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:02:09,025 INFO L225 Difference]: With dead ends: 356 [2021-11-07 01:02:09,025 INFO L226 Difference]: Without dead ends: 352 [2021-11-07 01:02:09,026 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 26.0s TimeCoverageRelationStatistics Valid=84, Invalid=262, Unknown=4, NotChecked=70, Total=420 [2021-11-07 01:02:09,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 352 states. [2021-11-07 01:02:09,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 352 to 274. [2021-11-07 01:02:09,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 274 states, 247 states have (on average 1.2024291497975708) internal successors, (297), 273 states have internal predecessors, (297), 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 01:02:09,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 274 states to 274 states and 297 transitions. [2021-11-07 01:02:09,053 INFO L78 Accepts]: Start accepts. Automaton has 274 states and 297 transitions. Word has length 25 [2021-11-07 01:02:09,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:02:09,053 INFO L470 AbstractCegarLoop]: Abstraction has 274 states and 297 transitions. [2021-11-07 01:02:09,053 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 3.2) internal successors, (48), 14 states have internal predecessors, (48), 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 01:02:09,054 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states and 297 transitions. [2021-11-07 01:02:09,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-07 01:02:09,054 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:02:09,055 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:02:09,069 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c4da8aa-e2ee-470f-902f-37e9e57d077a/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-07 01:02:09,255 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c4da8aa-e2ee-470f-902f-37e9e57d077a/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:02:09,255 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-07 01:02:09,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:02:09,256 INFO L85 PathProgramCache]: Analyzing trace with hash -1834071270, now seen corresponding path program 1 times [2021-11-07 01:02:09,256 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:02:09,257 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1650579744] [2021-11-07 01:02:09,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:02:09,257 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:02:09,257 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c4da8aa-e2ee-470f-902f-37e9e57d077a/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:02:09,258 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c4da8aa-e2ee-470f-902f-37e9e57d077a/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:02:09,259 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c4da8aa-e2ee-470f-902f-37e9e57d077a/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-07 01:02:09,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:02:09,757 INFO L263 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 53 conjunts are in the unsatisfiable core [2021-11-07 01:02:09,760 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:02:09,799 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:02:09,933 INFO L354 Elim1Store]: treesize reduction 61, result has 32.2 percent of original size [2021-11-07 01:02:09,934 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 15 treesize of output 34 [2021-11-07 01:02:10,306 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-07 01:02:10,306 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 19 [2021-11-07 01:02:10,475 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:02:10,477 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 689 [2021-11-07 01:02:10,487 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:02:10,494 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 459 treesize of output 275 [2021-11-07 01:02:11,187 INFO L354 Elim1Store]: treesize reduction 157, result has 14.2 percent of original size [2021-11-07 01:02:11,188 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 419 treesize of output 430 [2021-11-07 01:02:11,357 INFO L354 Elim1Store]: treesize reduction 189, result has 10.0 percent of original size [2021-11-07 01:02:11,358 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 196 treesize of output 98 [2021-11-07 01:02:11,363 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:02:11,364 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 146 [2021-11-07 01:02:11,372 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:02:11,376 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 123 treesize of output 113 [2021-11-07 01:02:11,421 INFO L883 QuantifierPusher]: Run 10 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-11-07 01:02:11,431 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 36 [2021-11-07 01:02:11,719 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:02:13,482 INFO L354 Elim1Store]: treesize reduction 162, result has 21.7 percent of original size [2021-11-07 01:02:13,483 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 9 case distinctions, treesize of input 71 treesize of output 70 [2021-11-07 01:02:16,138 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:02:16,139 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 685 [2021-11-07 01:02:32,115 WARN L207 SmtUtils]: Spent 15.96 s on a formula simplification. DAG size of input: 89 DAG size of output: 50 [2021-11-07 01:02:32,116 INFO L354 Elim1Store]: treesize reduction 288, result has 27.1 percent of original size [2021-11-07 01:02:32,116 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 5 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 9 new quantified variables, introduced 13 case distinctions, treesize of input 18388 treesize of output 6726 [2021-11-07 01:04:03,766 WARN L207 SmtUtils]: Spent 1.53 m on a formula simplification. DAG size of input: 264 DAG size of output: 145 [2021-11-07 01:04:03,767 INFO L354 Elim1Store]: treesize reduction 620, result has 35.2 percent of original size [2021-11-07 01:04:03,767 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 5 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 51 case distinctions, treesize of input 6743 treesize of output 4499 [2021-11-07 01:04:38,241 WARN L207 SmtUtils]: Spent 34.40 s on a formula simplification. DAG size of input: 137 DAG size of output: 67 [2021-11-07 01:04:38,242 INFO L354 Elim1Store]: treesize reduction 232, result has 33.9 percent of original size [2021-11-07 01:04:38,242 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 8 new quantified variables, introduced 27 case distinctions, treesize of input 4591 treesize of output 4290 [2021-11-07 01:05:09,535 WARN L207 SmtUtils]: Spent 31.20 s on a formula simplification. DAG size of input: 137 DAG size of output: 63 [2021-11-07 01:05:09,536 INFO L354 Elim1Store]: treesize reduction 242, result has 31.1 percent of original size [2021-11-07 01:05:09,537 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 8 new quantified variables, introduced 27 case distinctions, treesize of input 4307 treesize of output 4204 [2021-11-07 01:05:34,732 WARN L207 SmtUtils]: Spent 25.04 s on a formula simplification. DAG size of input: 137 DAG size of output: 64 [2021-11-07 01:05:34,733 INFO L354 Elim1Store]: treesize reduction 248, result has 31.7 percent of original size [2021-11-07 01:05:34,734 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 8 new quantified variables, introduced 27 case distinctions, treesize of input 4221 treesize of output 4206 [2021-11-07 01:05:34,797 INFO L883 QuantifierPusher]: Run 10 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-11-07 01:06:02,534 WARN L207 SmtUtils]: Spent 27.65 s on a formula simplification. DAG size of input: 137 DAG size of output: 65 [2021-11-07 01:06:02,535 INFO L354 Elim1Store]: treesize reduction 234, result has 33.3 percent of original size [2021-11-07 01:06:02,536 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 8 new quantified variables, introduced 27 case distinctions, treesize of input 4223 treesize of output 4232 [2021-11-07 01:06:22,369 WARN L207 SmtUtils]: Spent 19.67 s on a formula simplification. DAG size of input: 137 DAG size of output: 65 [2021-11-07 01:06:22,370 INFO L354 Elim1Store]: treesize reduction 234, result has 33.3 percent of original size [2021-11-07 01:06:22,371 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 8 new quantified variables, introduced 27 case distinctions, treesize of input 4239 treesize of output 3520 [2021-11-07 01:06:42,797 WARN L207 SmtUtils]: Spent 20.27 s on a formula simplification. DAG size of input: 133 DAG size of output: 57 [2021-11-07 01:06:42,797 INFO L354 Elim1Store]: treesize reduction 228, result has 29.0 percent of original size [2021-11-07 01:06:42,798 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 8 new quantified variables, introduced 27 case distinctions, treesize of input 3527 treesize of output 3483 [2021-11-07 01:06:58,958 WARN L207 SmtUtils]: Spent 16.00 s on a formula simplification. DAG size of input: 133 DAG size of output: 60 [2021-11-07 01:06:58,959 INFO L354 Elim1Store]: treesize reduction 220, result has 31.5 percent of original size [2021-11-07 01:06:58,960 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 8 new quantified variables, introduced 27 case distinctions, treesize of input 3501 treesize of output 3561 [2021-11-07 01:07:14,265 WARN L207 SmtUtils]: Spent 15.17 s on a formula simplification. DAG size of input: 133 DAG size of output: 61 [2021-11-07 01:07:14,266 INFO L354 Elim1Store]: treesize reduction 220, result has 31.5 percent of original size [2021-11-07 01:07:14,268 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 8 new quantified variables, introduced 27 case distinctions, treesize of input 3571 treesize of output 3631 [2021-11-07 01:07:14,325 INFO L883 QuantifierPusher]: Run 20 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-11-07 01:07:29,786 WARN L207 SmtUtils]: Spent 15.28 s on a formula simplification. DAG size of input: 133 DAG size of output: 61 [2021-11-07 01:07:29,787 INFO L354 Elim1Store]: treesize reduction 220, result has 31.5 percent of original size [2021-11-07 01:07:29,788 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 8 new quantified variables, introduced 27 case distinctions, treesize of input 3655 treesize of output 3491 [2021-11-07 01:07:38,564 WARN L207 SmtUtils]: Spent 8.46 s on a formula simplification. DAG size of input: 133 DAG size of output: 57 [2021-11-07 01:07:38,564 INFO L354 Elim1Store]: treesize reduction 228, result has 29.0 percent of original size [2021-11-07 01:07:38,565 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 8 new quantified variables, introduced 27 case distinctions, treesize of input 3509 treesize of output 3529 [2021-11-07 01:07:42,947 INFO L354 Elim1Store]: treesize reduction 10, result has 65.5 percent of original size [2021-11-07 01:07:42,949 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 3547 treesize of output 3557 [2021-11-07 01:07:45,669 INFO L354 Elim1Store]: treesize reduction 10, result has 65.5 percent of original size [2021-11-07 01:07:45,670 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 3572 treesize of output 3582 [2021-11-07 01:07:49,939 INFO L354 Elim1Store]: treesize reduction 10, result has 65.5 percent of original size [2021-11-07 01:07:49,940 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 3597 treesize of output 3607 [2021-11-07 01:07:49,989 INFO L883 QuantifierPusher]: Run 30 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-11-07 01:07:52,473 INFO L354 Elim1Store]: treesize reduction 10, result has 65.5 percent of original size [2021-11-07 01:07:52,474 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 3622 treesize of output 3632