./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/heap-manipulation/bubble_sort_linux-1.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_949cbcc6-148b-4733-bb46-c42acee84ba6/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_949cbcc6-148b-4733-bb46-c42acee84ba6/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_949cbcc6-148b-4733-bb46-c42acee84ba6/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_949cbcc6-148b-4733-bb46-c42acee84ba6/bin/utaipan-UUZaoUuFF8/config/TaipanReach.xml -i ../../sv-benchmarks/c/heap-manipulation/bubble_sort_linux-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_949cbcc6-148b-4733-bb46-c42acee84ba6/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_949cbcc6-148b-4733-bb46-c42acee84ba6/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 a38de44f112a10364737c35b840e673503a211a020b9f494a50e4a32c8fe31c0 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 01:33:21,870 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 01:33:21,873 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 01:33:21,923 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 01:33:21,923 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 01:33:21,925 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 01:33:21,927 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 01:33:21,930 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 01:33:21,932 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 01:33:21,933 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 01:33:21,935 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 01:33:21,936 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 01:33:21,937 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 01:33:21,938 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 01:33:21,940 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 01:33:21,941 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 01:33:21,943 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 01:33:21,944 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 01:33:21,946 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 01:33:21,949 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 01:33:21,951 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 01:33:21,953 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 01:33:21,954 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 01:33:21,955 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 01:33:21,959 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 01:33:21,960 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 01:33:21,960 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 01:33:21,961 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 01:33:21,962 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 01:33:21,963 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 01:33:21,964 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 01:33:21,965 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 01:33:21,966 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 01:33:21,967 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 01:33:21,968 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 01:33:21,969 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 01:33:21,969 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 01:33:21,970 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 01:33:21,970 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 01:33:21,972 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 01:33:21,973 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 01:33:21,974 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_949cbcc6-148b-4733-bb46-c42acee84ba6/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-07 01:33:21,998 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 01:33:21,998 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 01:33:21,999 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 01:33:22,000 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 01:33:22,000 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 01:33:22,000 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 01:33:22,001 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-07 01:33:22,001 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 01:33:22,001 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 01:33:22,002 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-07 01:33:22,002 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-07 01:33:22,003 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 01:33:22,003 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-07 01:33:22,003 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-07 01:33:22,004 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-07 01:33:22,005 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 01:33:22,005 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-07 01:33:22,005 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 01:33:22,006 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-07 01:33:22,006 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 01:33:22,007 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 01:33:22,007 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 01:33:22,007 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 01:33:22,008 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 01:33:22,008 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-07 01:33:22,008 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 01:33:22,009 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 01:33:22,009 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 01:33:22,010 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 01:33:22,010 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 01:33:22,010 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 01:33:22,011 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 01:33:22,011 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 01:33:22,011 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 01:33:22,012 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-07 01:33:22,012 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 01:33:22,013 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 01:33:22,013 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 01:33:22,013 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 01:33:22,014 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_949cbcc6-148b-4733-bb46-c42acee84ba6/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_949cbcc6-148b-4733-bb46-c42acee84ba6/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a38de44f112a10364737c35b840e673503a211a020b9f494a50e4a32c8fe31c0 [2021-11-07 01:33:22,258 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 01:33:22,280 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 01:33:22,283 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 01:33:22,284 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 01:33:22,285 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 01:33:22,286 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_949cbcc6-148b-4733-bb46-c42acee84ba6/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/heap-manipulation/bubble_sort_linux-1.i [2021-11-07 01:33:22,357 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_949cbcc6-148b-4733-bb46-c42acee84ba6/bin/utaipan-UUZaoUuFF8/data/6bf12b3be/5fdcc28f188d422c9b1e7989778943c3/FLAGd9912f5de [2021-11-07 01:33:22,917 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 01:33:22,918 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_949cbcc6-148b-4733-bb46-c42acee84ba6/sv-benchmarks/c/heap-manipulation/bubble_sort_linux-1.i [2021-11-07 01:33:22,939 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_949cbcc6-148b-4733-bb46-c42acee84ba6/bin/utaipan-UUZaoUuFF8/data/6bf12b3be/5fdcc28f188d422c9b1e7989778943c3/FLAGd9912f5de [2021-11-07 01:33:23,345 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_949cbcc6-148b-4733-bb46-c42acee84ba6/bin/utaipan-UUZaoUuFF8/data/6bf12b3be/5fdcc28f188d422c9b1e7989778943c3 [2021-11-07 01:33:23,347 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 01:33:23,349 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 01:33:23,354 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 01:33:23,354 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 01:33:23,357 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 01:33:23,358 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:33:23" (1/1) ... [2021-11-07 01:33:23,359 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@602fee5a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:33:23, skipping insertion in model container [2021-11-07 01:33:23,360 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:33:23" (1/1) ... [2021-11-07 01:33:23,368 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 01:33:23,447 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 01:33:23,951 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_949cbcc6-148b-4733-bb46-c42acee84ba6/sv-benchmarks/c/heap-manipulation/bubble_sort_linux-1.i[33822,33835] [2021-11-07 01:33:23,984 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 01:33:23,985 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 01:33:23,987 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 01:33:24,033 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:33:24,048 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2021-11-07 01:33:24,050 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@71b01b79 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:33:24, skipping insertion in model container [2021-11-07 01:33:24,050 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 01:33:24,051 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-07 01:33:24,054 INFO L168 Benchmark]: Toolchain (without parser) took 703.13 ms. Allocated memory is still 113.2 MB. Free memory was 72.6 MB in the beginning and 81.2 MB in the end (delta: -8.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-11-07 01:33:24,055 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 113.2 MB. Free memory is still 91.5 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 01:33:24,057 INFO L168 Benchmark]: CACSL2BoogieTranslator took 696.96 ms. Allocated memory is still 113.2 MB. Free memory was 72.3 MB in the beginning and 81.2 MB in the end (delta: -8.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-11-07 01:33:24,060 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 113.2 MB. Free memory is still 91.5 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 696.96 ms. Allocated memory is still 113.2 MB. Free memory was 72.3 MB in the beginning and 81.2 MB in the end (delta: -8.9 MB). Peak memory consumption was 8.4 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_949cbcc6-148b-4733-bb46-c42acee84ba6/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_949cbcc6-148b-4733-bb46-c42acee84ba6/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_949cbcc6-148b-4733-bb46-c42acee84ba6/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_949cbcc6-148b-4733-bb46-c42acee84ba6/bin/utaipan-UUZaoUuFF8/config/TaipanReach.xml -i ../../sv-benchmarks/c/heap-manipulation/bubble_sort_linux-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_949cbcc6-148b-4733-bb46-c42acee84ba6/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_949cbcc6-148b-4733-bb46-c42acee84ba6/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 a38de44f112a10364737c35b840e673503a211a020b9f494a50e4a32c8fe31c0 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 01:33:26,351 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 01:33:26,353 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 01:33:26,402 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 01:33:26,403 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 01:33:26,404 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 01:33:26,406 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 01:33:26,409 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 01:33:26,412 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 01:33:26,413 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 01:33:26,414 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 01:33:26,416 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 01:33:26,416 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 01:33:26,419 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 01:33:26,421 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 01:33:26,422 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 01:33:26,423 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 01:33:26,424 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 01:33:26,427 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 01:33:26,429 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 01:33:26,432 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 01:33:26,433 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 01:33:26,435 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 01:33:26,436 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 01:33:26,440 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 01:33:26,440 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 01:33:26,441 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 01:33:26,442 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 01:33:26,442 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 01:33:26,443 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 01:33:26,444 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 01:33:26,445 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 01:33:26,446 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 01:33:26,446 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 01:33:26,448 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 01:33:26,448 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 01:33:26,449 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 01:33:26,449 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 01:33:26,450 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 01:33:26,451 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 01:33:26,452 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 01:33:26,453 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_949cbcc6-148b-4733-bb46-c42acee84ba6/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-11-07 01:33:26,481 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 01:33:26,482 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 01:33:26,483 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 01:33:26,483 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 01:33:26,483 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 01:33:26,483 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 01:33:26,483 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 01:33:26,484 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 01:33:26,484 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 01:33:26,485 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 01:33:26,485 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-07 01:33:26,485 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-07 01:33:26,485 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 01:33:26,485 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 01:33:26,485 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 01:33:26,486 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 01:33:26,486 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 01:33:26,486 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-07 01:33:26,486 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-07 01:33:26,486 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-07 01:33:26,486 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 01:33:26,487 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 01:33:26,487 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 01:33:26,487 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 01:33:26,487 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 01:33:26,487 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 01:33:26,488 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 01:33:26,488 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 01:33:26,488 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 01:33:26,488 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 01:33:26,488 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-07 01:33:26,489 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-07 01:33:26,489 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 01:33:26,489 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 01:33:26,489 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 01:33:26,489 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_949cbcc6-148b-4733-bb46-c42acee84ba6/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_949cbcc6-148b-4733-bb46-c42acee84ba6/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a38de44f112a10364737c35b840e673503a211a020b9f494a50e4a32c8fe31c0 [2021-11-07 01:33:26,838 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 01:33:26,860 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 01:33:26,863 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 01:33:26,864 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 01:33:26,865 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 01:33:26,865 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_949cbcc6-148b-4733-bb46-c42acee84ba6/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/heap-manipulation/bubble_sort_linux-1.i [2021-11-07 01:33:26,927 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_949cbcc6-148b-4733-bb46-c42acee84ba6/bin/utaipan-UUZaoUuFF8/data/3b3beabf5/bc4dc65e247c40f284ab47a55aecf295/FLAGb37b3d469 [2021-11-07 01:33:27,594 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 01:33:27,596 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_949cbcc6-148b-4733-bb46-c42acee84ba6/sv-benchmarks/c/heap-manipulation/bubble_sort_linux-1.i [2021-11-07 01:33:27,618 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_949cbcc6-148b-4733-bb46-c42acee84ba6/bin/utaipan-UUZaoUuFF8/data/3b3beabf5/bc4dc65e247c40f284ab47a55aecf295/FLAGb37b3d469 [2021-11-07 01:33:27,790 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_949cbcc6-148b-4733-bb46-c42acee84ba6/bin/utaipan-UUZaoUuFF8/data/3b3beabf5/bc4dc65e247c40f284ab47a55aecf295 [2021-11-07 01:33:27,797 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 01:33:27,798 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 01:33:27,801 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 01:33:27,801 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 01:33:27,804 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 01:33:27,805 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:33:27" (1/1) ... [2021-11-07 01:33:27,807 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7ea3fa34 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:33:27, skipping insertion in model container [2021-11-07 01:33:27,807 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:33:27" (1/1) ... [2021-11-07 01:33:27,814 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 01:33:27,877 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 01:33:28,433 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_949cbcc6-148b-4733-bb46-c42acee84ba6/sv-benchmarks/c/heap-manipulation/bubble_sort_linux-1.i[33822,33835] [2021-11-07 01:33:28,510 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:33:28,533 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-07 01:33:28,547 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 01:33:28,600 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_949cbcc6-148b-4733-bb46-c42acee84ba6/sv-benchmarks/c/heap-manipulation/bubble_sort_linux-1.i[33822,33835] [2021-11-07 01:33:28,633 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:33:28,644 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 01:33:28,686 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_949cbcc6-148b-4733-bb46-c42acee84ba6/sv-benchmarks/c/heap-manipulation/bubble_sort_linux-1.i[33822,33835] [2021-11-07 01:33:28,720 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:33:28,818 INFO L208 MainTranslator]: Completed translation [2021-11-07 01:33:28,819 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:33:28 WrapperNode [2021-11-07 01:33:28,819 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 01:33:28,820 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 01:33:28,820 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 01:33:28,820 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 01:33:28,828 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:33:28" (1/1) ... [2021-11-07 01:33:28,873 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:33:28" (1/1) ... [2021-11-07 01:33:28,915 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 01:33:28,916 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 01:33:28,916 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 01:33:28,916 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 01:33:28,924 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:33:28" (1/1) ... [2021-11-07 01:33:28,924 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:33:28" (1/1) ... [2021-11-07 01:33:28,930 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:33:28" (1/1) ... [2021-11-07 01:33:28,930 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:33:28" (1/1) ... [2021-11-07 01:33:28,952 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:33:28" (1/1) ... [2021-11-07 01:33:28,963 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:33:28" (1/1) ... [2021-11-07 01:33:28,969 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:33:28" (1/1) ... [2021-11-07 01:33:28,977 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 01:33:28,978 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 01:33:28,978 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 01:33:28,978 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 01:33:28,995 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:33:28" (1/1) ... [2021-11-07 01:33:29,001 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 01:33:29,019 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_949cbcc6-148b-4733-bb46-c42acee84ba6/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 01:33:29,032 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_949cbcc6-148b-4733-bb46-c42acee84ba6/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-07 01:33:29,065 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_949cbcc6-148b-4733-bb46-c42acee84ba6/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-07 01:33:29,082 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-07 01:33:29,082 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 01:33:29,082 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-07 01:33:29,082 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-07 01:33:29,083 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-07 01:33:29,083 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-07 01:33:29,083 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-07 01:33:29,083 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-07 01:33:29,083 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-07 01:33:29,083 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 01:33:29,083 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 01:33:30,275 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 01:33:30,275 INFO L299 CfgBuilder]: Removed 178 assume(true) statements. [2021-11-07 01:33:30,278 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:33:30 BoogieIcfgContainer [2021-11-07 01:33:30,278 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 01:33:30,280 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 01:33:30,280 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 01:33:30,301 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 01:33:30,301 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 01:33:27" (1/3) ... [2021-11-07 01:33:30,302 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2eb10ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:33:30, skipping insertion in model container [2021-11-07 01:33:30,302 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:33:28" (2/3) ... [2021-11-07 01:33:30,302 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2eb10ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:33:30, skipping insertion in model container [2021-11-07 01:33:30,303 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:33:30" (3/3) ... [2021-11-07 01:33:30,304 INFO L111 eAbstractionObserver]: Analyzing ICFG bubble_sort_linux-1.i [2021-11-07 01:33:30,309 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 01:33:30,310 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 34 error locations. [2021-11-07 01:33:30,360 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 01:33:30,367 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-07 01:33:30,367 INFO L340 AbstractCegarLoop]: Starting to check reachability of 34 error locations. [2021-11-07 01:33:30,388 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 01:33:30,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-11-07 01:33:30,393 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:33:30,394 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-11-07 01:33:30,394 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 01:33:30,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:33:30,400 INFO L85 PathProgramCache]: Analyzing trace with hash 890491911, now seen corresponding path program 1 times [2021-11-07 01:33:30,410 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:33:30,411 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1042483280] [2021-11-07 01:33:30,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:33:30,412 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:33:30,412 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_949cbcc6-148b-4733-bb46-c42acee84ba6/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:33:30,413 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_949cbcc6-148b-4733-bb46-c42acee84ba6/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:33:30,417 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_949cbcc6-148b-4733-bb46-c42acee84ba6/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-07 01:33:30,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:33:30,516 INFO L263 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-07 01:33:30,521 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:33:30,564 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 01:33:30,565 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:33:30,590 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 01:33:30,591 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:33:30,592 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1042483280] [2021-11-07 01:33:30,592 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1042483280] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:33:30,593 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:33:30,594 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-07 01:33:30,595 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1902929744] [2021-11-07 01:33:30,600 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-07 01:33:30,600 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:33:30,616 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-07 01:33:30,617 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-07 01:33:30,624 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 01:33:30,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:33:30,679 INFO L93 Difference]: Finished difference Result 386 states and 620 transitions. [2021-11-07 01:33:30,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-07 01:33:30,680 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 01:33:30,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:33:30,690 INFO L225 Difference]: With dead ends: 386 [2021-11-07 01:33:30,690 INFO L226 Difference]: Without dead ends: 182 [2021-11-07 01:33:30,696 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 01:33:30,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2021-11-07 01:33:30,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 182. [2021-11-07 01:33:30,736 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 01:33:30,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 187 transitions. [2021-11-07 01:33:30,739 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 187 transitions. Word has length 6 [2021-11-07 01:33:30,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:33:30,740 INFO L470 AbstractCegarLoop]: Abstraction has 182 states and 187 transitions. [2021-11-07 01:33:30,740 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 01:33:30,740 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 187 transitions. [2021-11-07 01:33:30,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-11-07 01:33:30,741 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:33:30,741 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:33:30,757 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_949cbcc6-148b-4733-bb46-c42acee84ba6/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2021-11-07 01:33:30,953 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_949cbcc6-148b-4733-bb46-c42acee84ba6/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:33:30,954 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 01:33:30,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:33:30,955 INFO L85 PathProgramCache]: Analyzing trace with hash -670460105, now seen corresponding path program 1 times [2021-11-07 01:33:30,958 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:33:30,958 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1067245897] [2021-11-07 01:33:30,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:33:30,959 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:33:30,959 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_949cbcc6-148b-4733-bb46-c42acee84ba6/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:33:30,966 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_949cbcc6-148b-4733-bb46-c42acee84ba6/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:33:30,967 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_949cbcc6-148b-4733-bb46-c42acee84ba6/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-07 01:33:31,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:33:31,090 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-07 01:33:31,092 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:33:31,213 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 01:33:31,214 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:33:31,290 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 01:33:31,291 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:33:31,291 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1067245897] [2021-11-07 01:33:31,291 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1067245897] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:33:31,292 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:33:31,293 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-07 01:33:31,293 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1124656902] [2021-11-07 01:33:31,295 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 01:33:31,295 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:33:31,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 01:33:31,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 01:33:31,299 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 01:33:31,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:33:31,941 INFO L93 Difference]: Finished difference Result 182 states and 187 transitions. [2021-11-07 01:33:31,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 01:33:31,942 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 01:33:31,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:33:31,944 INFO L225 Difference]: With dead ends: 182 [2021-11-07 01:33:31,944 INFO L226 Difference]: Without dead ends: 178 [2021-11-07 01:33:31,945 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 01:33:31,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178 states. [2021-11-07 01:33:31,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178 to 178. [2021-11-07 01:33:31,960 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 01:33:31,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 183 transitions. [2021-11-07 01:33:31,962 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 183 transitions. Word has length 13 [2021-11-07 01:33:31,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:33:31,963 INFO L470 AbstractCegarLoop]: Abstraction has 178 states and 183 transitions. [2021-11-07 01:33:31,963 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 01:33:31,963 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 183 transitions. [2021-11-07 01:33:31,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-11-07 01:33:31,964 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:33:31,964 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:33:31,990 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_949cbcc6-148b-4733-bb46-c42acee84ba6/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-07 01:33:32,178 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_949cbcc6-148b-4733-bb46-c42acee84ba6/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:33:32,178 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 01:33:32,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:33:32,179 INFO L85 PathProgramCache]: Analyzing trace with hash -2073220537, now seen corresponding path program 1 times [2021-11-07 01:33:32,179 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:33:32,180 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [651513027] [2021-11-07 01:33:32,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:33:32,180 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:33:32,180 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_949cbcc6-148b-4733-bb46-c42acee84ba6/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:33:32,182 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_949cbcc6-148b-4733-bb46-c42acee84ba6/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:33:32,193 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_949cbcc6-148b-4733-bb46-c42acee84ba6/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-07 01:33:32,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:33:32,350 INFO L263 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 24 conjunts are in the unsatisfiable core [2021-11-07 01:33:32,352 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:33:32,470 INFO L354 Elim1Store]: treesize reduction 77, result has 29.4 percent of original size [2021-11-07 01:33:32,471 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 01:33:32,828 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-07 01:33:32,830 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 01:33:32,926 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:33:32,928 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:33:32,930 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:33:33,008 INFO L354 Elim1Store]: treesize reduction 111, result has 20.1 percent of original size [2021-11-07 01:33:33,009 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 01:33:33,416 INFO L354 Elim1Store]: treesize reduction 76, result has 22.4 percent of original size [2021-11-07 01:33:33,417 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 7 case distinctions, treesize of input 61 treesize of output 83 [2021-11-07 01:33:34,979 INFO L354 Elim1Store]: treesize reduction 125, result has 29.4 percent of original size [2021-11-07 01:33:34,979 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 6 disjoint index pairs (out of 21 index pairs), introduced 9 new quantified variables, introduced 21 case distinctions, treesize of input 93 treesize of output 98 [2021-11-07 01:33:35,090 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 01:33:35,091 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:33:35,533 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 01:33:35,533 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:33:35,533 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [651513027] [2021-11-07 01:33:35,533 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [651513027] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:33:35,534 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:33:35,534 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 13 [2021-11-07 01:33:35,534 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1381043873] [2021-11-07 01:33:35,534 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-11-07 01:33:35,535 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:33:35,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-11-07 01:33:35,536 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2021-11-07 01:33:35,536 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 01:34:06,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:34:06,905 INFO L93 Difference]: Finished difference Result 270 states and 278 transitions. [2021-11-07 01:34:06,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-07 01:34:06,906 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 01:34:06,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:34:06,909 INFO L225 Difference]: With dead ends: 270 [2021-11-07 01:34:06,909 INFO L226 Difference]: Without dead ends: 266 [2021-11-07 01:34:06,910 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 15.2s TimeCoverageRelationStatistics Valid=105, Invalid=268, Unknown=7, NotChecked=0, Total=380 [2021-11-07 01:34:06,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2021-11-07 01:34:06,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 191. [2021-11-07 01:34:06,937 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 01:34:06,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 199 transitions. [2021-11-07 01:34:06,938 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 199 transitions. Word has length 16 [2021-11-07 01:34:06,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:34:06,939 INFO L470 AbstractCegarLoop]: Abstraction has 191 states and 199 transitions. [2021-11-07 01:34:06,939 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 01:34:06,939 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 199 transitions. [2021-11-07 01:34:06,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-11-07 01:34:06,940 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:34:06,940 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 01:34:06,960 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_949cbcc6-148b-4733-bb46-c42acee84ba6/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-07 01:34:07,155 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_949cbcc6-148b-4733-bb46-c42acee84ba6/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:34:07,156 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 01:34:07,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:34:07,157 INFO L85 PathProgramCache]: Analyzing trace with hash -1677440309, now seen corresponding path program 1 times [2021-11-07 01:34:07,157 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:34:07,158 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [221904497] [2021-11-07 01:34:07,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:34:07,158 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:34:07,158 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_949cbcc6-148b-4733-bb46-c42acee84ba6/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:34:07,161 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_949cbcc6-148b-4733-bb46-c42acee84ba6/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:34:07,163 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_949cbcc6-148b-4733-bb46-c42acee84ba6/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-07 01:34:07,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:34:07,393 INFO L263 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 34 conjunts are in the unsatisfiable core [2021-11-07 01:34:07,396 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:34:07,500 INFO L354 Elim1Store]: treesize reduction 77, result has 29.4 percent of original size [2021-11-07 01:34:07,501 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 01:34:07,784 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-07 01:34:07,784 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 01:34:07,884 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:34:07,886 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 689 [2021-11-07 01:34:07,893 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:34:07,899 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 01:34:08,374 INFO L354 Elim1Store]: treesize reduction 157, result has 14.2 percent of original size [2021-11-07 01:34:08,375 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 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 01:34:08,525 INFO L354 Elim1Store]: treesize reduction 189, result has 10.0 percent of original size [2021-11-07 01:34:08,525 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 01:34:08,532 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:34:08,534 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 146 [2021-11-07 01:34:08,542 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:34:08,546 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 01:34:08,565 INFO L883 QuantifierPusher]: Run 10 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-11-07 01:34:08,570 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 01:34:08,707 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:34:10,916 INFO L354 Elim1Store]: treesize reduction 314, result has 16.9 percent of original size [2021-11-07 01:34:10,917 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 11 case distinctions, treesize of input 80 treesize of output 89 [2021-11-07 01:34:12,260 INFO L354 Elim1Store]: treesize reduction 68, result has 1.4 percent of original size [2021-11-07 01:34:12,261 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 61 treesize of output 20 [2021-11-07 01:34:12,300 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 01:34:12,300 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:34:12,537 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:34:12,538 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1245 [2021-11-07 01:34:12,544 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:34:12,553 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1462 [2021-11-07 01:34:31,491 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ULTIMATE.start_gl_insert_~node~1.base_9 (_ BitVec 32))) (or (not (= (_ bv0 1) (bvneg (bvneg (bvneg (select |c_#valid| v_ULTIMATE.start_gl_insert_~node~1.base_9)))))) (forall ((v_DerPreprocessor_10 (_ BitVec 32)) (v_DerPreprocessor_13 (_ BitVec 32)) (ULTIMATE.start_gl_insert_~node~1.offset (_ BitVec 32)) (v_DerPreprocessor_14 (_ BitVec 32)) (v_DerPreprocessor_11 (_ BitVec 32)) (v_DerPreprocessor_12 (_ BitVec 32)) (v_DerPreprocessor_9 (_ BitVec 32)) (v_DerPreprocessor_15 (_ BitVec 32)) (v_DerPreprocessor_16 (_ BitVec 32)) (v_ULTIMATE.start___list_add_~new.offset_7 (_ BitVec 32))) (not (= (select (select (let ((.cse0 (let ((.cse1 (let ((.cse5 (bvadd ULTIMATE.start_gl_insert_~node~1.offset (_ bv1 32))) (.cse6 (bvadd (_ bv2 32) ULTIMATE.start_gl_insert_~node~1.offset)) (.cse7 (bvadd (_ bv3 32) ULTIMATE.start_gl_insert_~node~1.offset))) (let ((.cse4 (store |c_#memory_$Pointer$.base| v_ULTIMATE.start_gl_insert_~node~1.base_9 (store (store (store (store (select |c_#memory_$Pointer$.base| v_ULTIMATE.start_gl_insert_~node~1.base_9) ULTIMATE.start_gl_insert_~node~1.offset v_DerPreprocessor_9) .cse5 v_DerPreprocessor_10) .cse6 v_DerPreprocessor_11) .cse7 v_DerPreprocessor_12)))) (let ((.cse3 (select (select .cse4 |c_~#gl_list~0.base|) |c_~#gl_list~0.offset|))) (let ((.cse2 (store .cse4 .cse3 (store (select .cse4 .cse3) (bvadd (select (select (store |c_#memory_$Pointer$.offset| v_ULTIMATE.start_gl_insert_~node~1.base_9 (store (store (store (store (select |c_#memory_$Pointer$.offset| v_ULTIMATE.start_gl_insert_~node~1.base_9) ULTIMATE.start_gl_insert_~node~1.offset v_DerPreprocessor_13) .cse5 v_DerPreprocessor_14) .cse6 v_DerPreprocessor_15) .cse7 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 .cse2 v_ULTIMATE.start_gl_insert_~node~1.base_9 (store (store (select .cse2 v_ULTIMATE.start_gl_insert_~node~1.base_9) v_ULTIMATE.start___list_add_~new.offset_7 .cse3) (bvadd (_ bv4 32) v_ULTIMATE.start___list_add_~new.offset_7) |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| v_ULTIMATE.start_gl_insert_~node~1.base_9))))) (store .cse0 v_ULTIMATE.start_gl_insert_~node~1.base_9 (store (store (select .cse0 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) (bvadd (_ bv16 32) ULTIMATE.start_gl_insert_~node~1.offset) 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 01:34:32,187 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 01:34:32,188 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:34:32,188 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [221904497] [2021-11-07 01:34:32,188 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [221904497] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:34:32,189 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:34:32,189 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 12 [2021-11-07 01:34:32,189 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2005122222] [2021-11-07 01:34:32,189 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-07 01:34:32,190 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:34:32,191 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-07 01:34:32,191 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=103, Unknown=3, NotChecked=20, Total=156 [2021-11-07 01:34:32,191 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 01:34:44,883 WARN L207 SmtUtils]: Spent 8.64 s on a formula simplification. DAG size of input: 87 DAG size of output: 80 [2021-11-07 01:34:53,759 WARN L207 SmtUtils]: Spent 5.63 s on a formula simplification that was a NOOP. DAG size: 97 [2021-11-07 01:35:11,590 WARN L207 SmtUtils]: Spent 7.97 s on a formula simplification. DAG size of input: 104 DAG size of output: 97 [2021-11-07 01:35:45,827 WARN L207 SmtUtils]: Spent 20.37 s on a formula simplification. DAG size of input: 107 DAG size of output: 105 [2021-11-07 01:36:14,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:36:14,363 INFO L93 Difference]: Finished difference Result 364 states and 377 transitions. [2021-11-07 01:36:14,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-07 01:36:14,363 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 01:36:14,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:36:14,366 INFO L225 Difference]: With dead ends: 364 [2021-11-07 01:36:14,367 INFO L226 Difference]: Without dead ends: 360 [2021-11-07 01:36:14,367 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 25 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 70.0s TimeCoverageRelationStatistics Valid=79, Invalid=225, Unknown=6, NotChecked=32, Total=342 [2021-11-07 01:36:14,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 360 states. [2021-11-07 01:36:14,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 360 to 268. [2021-11-07 01:36:14,401 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 01:36:14,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 268 states to 268 states and 293 transitions. [2021-11-07 01:36:14,403 INFO L78 Accepts]: Start accepts. Automaton has 268 states and 293 transitions. Word has length 19 [2021-11-07 01:36:14,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:36:14,404 INFO L470 AbstractCegarLoop]: Abstraction has 268 states and 293 transitions. [2021-11-07 01:36:14,404 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 01:36:14,404 INFO L276 IsEmpty]: Start isEmpty. Operand 268 states and 293 transitions. [2021-11-07 01:36:14,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-11-07 01:36:14,405 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:36:14,405 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 01:36:14,436 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_949cbcc6-148b-4733-bb46-c42acee84ba6/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (5)] Ended with exit code 0 [2021-11-07 01:36:14,619 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_949cbcc6-148b-4733-bb46-c42acee84ba6/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:36:14,619 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 01:36:14,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:36:14,620 INFO L85 PathProgramCache]: Analyzing trace with hash -673877511, now seen corresponding path program 1 times [2021-11-07 01:36:14,620 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:36:14,620 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [557131943] [2021-11-07 01:36:14,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:36:14,621 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:36:14,621 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_949cbcc6-148b-4733-bb46-c42acee84ba6/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:36:14,621 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_949cbcc6-148b-4733-bb46-c42acee84ba6/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:36:14,623 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_949cbcc6-148b-4733-bb46-c42acee84ba6/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-07 01:36:14,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:36:14,839 INFO L263 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 34 conjunts are in the unsatisfiable core [2021-11-07 01:36:14,841 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:36:14,928 INFO L354 Elim1Store]: treesize reduction 77, result has 29.4 percent of original size [2021-11-07 01:36:14,928 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 01:36:15,267 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-07 01:36:15,268 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 01:36:15,375 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:36:15,376 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 689 [2021-11-07 01:36:15,382 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:36:15,390 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 01:36:16,013 INFO L354 Elim1Store]: treesize reduction 157, result has 14.2 percent of original size [2021-11-07 01:36:16,014 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 01:36:16,358 INFO L354 Elim1Store]: treesize reduction 189, result has 10.0 percent of original size [2021-11-07 01:36:16,358 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 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 01:36:16,366 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:36:16,368 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 150 [2021-11-07 01:36:16,374 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:36:16,379 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 01:36:16,483 INFO L883 QuantifierPusher]: Run 10 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-11-07 01:36:16,488 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 01:36:16,653 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:36:19,658 INFO L354 Elim1Store]: treesize reduction 314, result has 16.9 percent of original size [2021-11-07 01:36:19,659 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 11 case distinctions, treesize of input 96 treesize of output 96 [2021-11-07 01:36:21,395 INFO L354 Elim1Store]: treesize reduction 68, result has 1.4 percent of original size [2021-11-07 01:36:21,396 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 69 treesize of output 24 [2021-11-07 01:36:21,450 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 01:36:21,450 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:36:21,762 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:36:21,766 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1245 [2021-11-07 01:36:21,772 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:36:21,775 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1462 [2021-11-07 01:36:27,271 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 (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) (bvadd (_ bv16 32) ULTIMATE.start_gl_insert_~node~1.offset) 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 01:36:30,409 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ULTIMATE.start_gl_insert_~node~1.base_10 (_ BitVec 32))) (or (not (= (_ bv0 1) (bvneg (bvneg (bvneg (select |c_#valid| v_ULTIMATE.start_gl_insert_~node~1.base_10)))))) (= (_ bv0 32) v_ULTIMATE.start_gl_insert_~node~1.base_10) (forall ((v_DerPreprocessor_31 (_ BitVec 32)) (v_DerPreprocessor_32 (_ BitVec 32)) (v_DerPreprocessor_30 (_ BitVec 32)) (ULTIMATE.start_gl_insert_~node~1.offset (_ BitVec 32)) (v_DerPreprocessor_25 (_ BitVec 32)) (v_DerPreprocessor_28 (_ BitVec 32)) (v_ULTIMATE.start___list_add_~new.offset_8 (_ BitVec 32)) (v_DerPreprocessor_29 (_ BitVec 32)) (v_DerPreprocessor_26 (_ BitVec 32)) (v_DerPreprocessor_27 (_ BitVec 32))) (not (= (select (select (let ((.cse0 (let ((.cse1 (let ((.cse5 (bvadd ULTIMATE.start_gl_insert_~node~1.offset (_ bv1 32))) (.cse6 (bvadd (_ bv2 32) ULTIMATE.start_gl_insert_~node~1.offset)) (.cse7 (bvadd (_ bv3 32) ULTIMATE.start_gl_insert_~node~1.offset))) (let ((.cse4 (store |c_#memory_$Pointer$.base| v_ULTIMATE.start_gl_insert_~node~1.base_10 (store (store (store (store (select |c_#memory_$Pointer$.base| v_ULTIMATE.start_gl_insert_~node~1.base_10) ULTIMATE.start_gl_insert_~node~1.offset v_DerPreprocessor_25) .cse5 v_DerPreprocessor_26) .cse6 v_DerPreprocessor_27) .cse7 v_DerPreprocessor_28)))) (let ((.cse3 (select (select .cse4 |c_~#gl_list~0.base|) |c_~#gl_list~0.offset|))) (let ((.cse2 (store .cse4 .cse3 (store (select .cse4 .cse3) (bvadd (_ bv4 32) (select (select (store |c_#memory_$Pointer$.offset| v_ULTIMATE.start_gl_insert_~node~1.base_10 (store (store (store (store (select |c_#memory_$Pointer$.offset| v_ULTIMATE.start_gl_insert_~node~1.base_10) 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|)) v_ULTIMATE.start_gl_insert_~node~1.base_10)))) (store .cse2 v_ULTIMATE.start_gl_insert_~node~1.base_10 (store (store (select .cse2 v_ULTIMATE.start_gl_insert_~node~1.base_10) 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| v_ULTIMATE.start_gl_insert_~node~1.base_10))))) (store .cse0 v_ULTIMATE.start_gl_insert_~node~1.base_10 (store (store (select .cse0 v_ULTIMATE.start_gl_insert_~node~1.base_10) (bvadd ULTIMATE.start_gl_insert_~node~1.offset (_ bv12 32)) v_ULTIMATE.start_gl_insert_~node~1.base_10) (bvadd (_ bv16 32) ULTIMATE.start_gl_insert_~node~1.offset) v_ULTIMATE.start_gl_insert_~node~1.base_10))) |c_~#gl_list~0.base|) (bvadd (_ bv4 32) |c_~#gl_list~0.offset|)) (_ bv0 32)))))) is different from false [2021-11-07 01:36:31,424 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 01:36:31,424 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:36:31,424 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [557131943] [2021-11-07 01:36:31,424 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [557131943] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:36:31,424 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:36:31,424 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 12 [2021-11-07 01:36:31,425 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1750960177] [2021-11-07 01:36:31,425 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-07 01:36:31,425 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:36:31,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-07 01:36:31,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=89, Unknown=2, NotChecked=38, Total=156 [2021-11-07 01:36:31,426 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 01:36:33,469 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse0 (select |c_#memory_$Pointer$.base| |c_~#gl_list~0.base|)) (.cse1 (bvadd (_ bv4 32) |c_~#gl_list~0.offset|))) (and (= |c_~#gl_list~0.base| (select .cse0 |c_~#gl_list~0.offset|)) (not (= (select .cse0 .cse1) (_ bv0 32))) (= (select (select |c_#memory_$Pointer$.offset| |c_~#gl_list~0.base|) |c_~#gl_list~0.offset|) |c_~#gl_list~0.offset|) (= |c_~#gl_list~0.offset| (_ bv0 32)) (= (_ bv0 1) (bvadd (_ bv1 1) (bvneg (select |c_#valid| |c_~#gl_list~0.base|)))) (forall ((v_ULTIMATE.start_gl_insert_~node~1.base_10 (_ BitVec 32))) (or (not (= (_ bv0 1) (bvneg (bvneg (bvneg (select |c_#valid| v_ULTIMATE.start_gl_insert_~node~1.base_10)))))) (= (_ bv0 32) v_ULTIMATE.start_gl_insert_~node~1.base_10) (forall ((v_DerPreprocessor_31 (_ BitVec 32)) (v_DerPreprocessor_32 (_ BitVec 32)) (v_DerPreprocessor_30 (_ BitVec 32)) (ULTIMATE.start_gl_insert_~node~1.offset (_ BitVec 32)) (v_DerPreprocessor_25 (_ BitVec 32)) (v_DerPreprocessor_28 (_ BitVec 32)) (v_ULTIMATE.start___list_add_~new.offset_8 (_ BitVec 32)) (v_DerPreprocessor_29 (_ BitVec 32)) (v_DerPreprocessor_26 (_ BitVec 32)) (v_DerPreprocessor_27 (_ BitVec 32))) (not (= (select (select (let ((.cse2 (let ((.cse3 (let ((.cse7 (bvadd ULTIMATE.start_gl_insert_~node~1.offset (_ bv1 32))) (.cse8 (bvadd (_ bv2 32) ULTIMATE.start_gl_insert_~node~1.offset)) (.cse9 (bvadd (_ bv3 32) ULTIMATE.start_gl_insert_~node~1.offset))) (let ((.cse6 (store |c_#memory_$Pointer$.base| v_ULTIMATE.start_gl_insert_~node~1.base_10 (store (store (store (store (select |c_#memory_$Pointer$.base| v_ULTIMATE.start_gl_insert_~node~1.base_10) ULTIMATE.start_gl_insert_~node~1.offset v_DerPreprocessor_25) .cse7 v_DerPreprocessor_26) .cse8 v_DerPreprocessor_27) .cse9 v_DerPreprocessor_28)))) (let ((.cse5 (select (select .cse6 |c_~#gl_list~0.base|) |c_~#gl_list~0.offset|))) (let ((.cse4 (store .cse6 .cse5 (store (select .cse6 .cse5) (bvadd (_ bv4 32) (select (select (store |c_#memory_$Pointer$.offset| v_ULTIMATE.start_gl_insert_~node~1.base_10 (store (store (store (store (select |c_#memory_$Pointer$.offset| v_ULTIMATE.start_gl_insert_~node~1.base_10) ULTIMATE.start_gl_insert_~node~1.offset v_DerPreprocessor_29) .cse7 v_DerPreprocessor_30) .cse8 v_DerPreprocessor_31) .cse9 v_DerPreprocessor_32)) |c_~#gl_list~0.base|) |c_~#gl_list~0.offset|)) v_ULTIMATE.start_gl_insert_~node~1.base_10)))) (store .cse4 v_ULTIMATE.start_gl_insert_~node~1.base_10 (store (store (select .cse4 v_ULTIMATE.start_gl_insert_~node~1.base_10) v_ULTIMATE.start___list_add_~new.offset_8 .cse5) (bvadd (_ bv4 32) v_ULTIMATE.start___list_add_~new.offset_8) |c_~#gl_list~0.base|)))))))) (store .cse3 |c_~#gl_list~0.base| (store (select .cse3 |c_~#gl_list~0.base|) |c_~#gl_list~0.offset| v_ULTIMATE.start_gl_insert_~node~1.base_10))))) (store .cse2 v_ULTIMATE.start_gl_insert_~node~1.base_10 (store (store (select .cse2 v_ULTIMATE.start_gl_insert_~node~1.base_10) (bvadd ULTIMATE.start_gl_insert_~node~1.offset (_ bv12 32)) v_ULTIMATE.start_gl_insert_~node~1.base_10) (bvadd (_ bv16 32) ULTIMATE.start_gl_insert_~node~1.offset) v_ULTIMATE.start_gl_insert_~node~1.base_10))) |c_~#gl_list~0.base|) (bvadd (_ bv4 32) |c_~#gl_list~0.offset|)) (_ bv0 32)))))) (not (= (_ bv0 32) (select (select (store |c_#memory_$Pointer$.base| c_ULTIMATE.start_gl_insert_~node~1.base (store (store (select |c_#memory_$Pointer$.base| c_ULTIMATE.start_gl_insert_~node~1.base) (bvadd c_ULTIMATE.start_gl_insert_~node~1.offset (_ bv12 32)) c_ULTIMATE.start_gl_insert_~node~1.base) (bvadd (_ bv16 32) c_ULTIMATE.start_gl_insert_~node~1.offset) c_ULTIMATE.start_gl_insert_~node~1.base)) |c_~#gl_list~0.base|) .cse1))))) is different from false [2021-11-07 01:36:44,876 WARN L207 SmtUtils]: Spent 10.09 s on a formula simplification. DAG size of input: 84 DAG size of output: 82 [2021-11-07 01:37:05,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:37:05,359 INFO L93 Difference]: Finished difference Result 360 states and 373 transitions. [2021-11-07 01:37:05,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-07 01:37:05,360 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 01:37:05,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:37:05,362 INFO L225 Difference]: With dead ends: 360 [2021-11-07 01:37:05,363 INFO L226 Difference]: Without dead ends: 356 [2021-11-07 01:37:05,363 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 31 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 18.7s TimeCoverageRelationStatistics Valid=64, Invalid=185, Unknown=3, NotChecked=90, Total=342 [2021-11-07 01:37:05,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 356 states. [2021-11-07 01:37:05,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 356 to 271. [2021-11-07 01:37:05,409 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 01:37:05,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 271 states to 271 states and 295 transitions. [2021-11-07 01:37:05,414 INFO L78 Accepts]: Start accepts. Automaton has 271 states and 295 transitions. Word has length 22 [2021-11-07 01:37:05,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:37:05,415 INFO L470 AbstractCegarLoop]: Abstraction has 271 states and 295 transitions. [2021-11-07 01:37:05,415 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 01:37:05,415 INFO L276 IsEmpty]: Start isEmpty. Operand 271 states and 295 transitions. [2021-11-07 01:37:05,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-11-07 01:37:05,418 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:37:05,418 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 01:37:05,436 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_949cbcc6-148b-4733-bb46-c42acee84ba6/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-07 01:37:05,632 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_949cbcc6-148b-4733-bb46-c42acee84ba6/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:37:05,632 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 01:37:05,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:37:05,633 INFO L85 PathProgramCache]: Analyzing trace with hash -801887006, now seen corresponding path program 1 times [2021-11-07 01:37:05,633 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:37:05,634 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [993336583] [2021-11-07 01:37:05,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:37:05,634 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:37:05,634 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_949cbcc6-148b-4733-bb46-c42acee84ba6/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:37:05,635 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_949cbcc6-148b-4733-bb46-c42acee84ba6/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:37:05,639 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_949cbcc6-148b-4733-bb46-c42acee84ba6/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-07 01:37:05,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:37:05,939 INFO L263 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 42 conjunts are in the unsatisfiable core [2021-11-07 01:37:05,942 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:37:06,090 INFO L354 Elim1Store]: treesize reduction 77, result has 29.4 percent of original size [2021-11-07 01:37:06,091 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 01:37:06,400 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-07 01:37:06,401 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 01:37:06,560 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:37:06,561 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1024 [2021-11-07 01:37:06,570 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:37:06,578 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 01:37:06,587 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:37:06,590 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:37:06,595 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:37:06,599 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:37:06,601 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:37:06,605 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:37:06,613 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:37:06,616 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:37:06,618 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:37:06,621 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:37:06,624 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:37:06,627 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:37:06,629 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 01:37:06,647 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:37:07,272 INFO L354 Elim1Store]: treesize reduction 174, result has 7.0 percent of original size [2021-11-07 01:37:07,273 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 01:37:07,278 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:37:07,279 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 639 [2021-11-07 01:37:07,286 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:37:07,291 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 478 treesize of output 300 [2021-11-07 01:37:07,294 INFO L883 QuantifierPusher]: Run 10 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-11-07 01:37:07,300 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:37:07,303 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:37:07,305 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:37:07,308 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:37:07,311 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:37:07,314 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:37:07,320 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:37:07,323 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:37:07,325 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:37:07,328 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:37:07,331 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:37:07,333 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:37:07,335 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 238 treesize of output 249 [2021-11-07 01:37:07,345 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:37:07,348 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:37:07,408 INFO L354 Elim1Store]: treesize reduction 176, result has 7.9 percent of original size [2021-11-07 01:37:07,409 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 215 treesize of output 91 [2021-11-07 01:37:07,748 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:37:08,078 INFO L354 Elim1Store]: treesize reduction 516, result has 9.5 percent of original size [2021-11-07 01:37:08,079 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 11 case distinctions, treesize of input 210 treesize of output 164 [2021-11-07 01:37:08,087 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:37:08,250 INFO L354 Elim1Store]: treesize reduction 398, result has 12.7 percent of original size [2021-11-07 01:37:08,250 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 8 new quantified variables, introduced 11 case distinctions, treesize of input 206 treesize of output 186 [2021-11-07 01:37:09,882 INFO L354 Elim1Store]: treesize reduction 4, result has 66.7 percent of original size [2021-11-07 01:37:09,883 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 136 treesize of output 100 [2021-11-07 01:37:10,159 INFO L354 Elim1Store]: treesize reduction 22, result has 12.0 percent of original size [2021-11-07 01:37:10,159 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 10 disjoint index pairs (out of 21 index pairs), introduced 8 new quantified variables, introduced 21 case distinctions, treesize of input 86 treesize of output 32 [2021-11-07 01:37:10,214 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 01:37:10,214 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:37:10,864 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:37:10,866 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4166 [2021-11-07 01:37:10,871 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:37:10,873 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5395 [2021-11-07 01:37:21,026 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_DerPreprocessor_42 (_ BitVec 32)) (v_DerPreprocessor_43 (_ BitVec 32)) (v_DerPreprocessor_41 (_ BitVec 32)) (v_DerPreprocessor_46 (_ BitVec 32)) (v_DerPreprocessor_47 (_ BitVec 32)) (v_DerPreprocessor_44 (_ BitVec 32)) (v_DerPreprocessor_45 (_ BitVec 32)) (v_DerPreprocessor_48 (_ BitVec 32))) (not (let ((.cse18 (bvadd c_ULTIMATE.start_gl_insert_~node~1.offset (_ bv1 32))) (.cse19 (bvadd (_ bv2 32) c_ULTIMATE.start_gl_insert_~node~1.offset)) (.cse20 (bvadd (_ bv3 32) c_ULTIMATE.start_gl_insert_~node~1.offset))) (let ((.cse10 (store |c_#memory_$Pointer$.offset| c_ULTIMATE.start_gl_insert_~node~1.base (store (store (store (store (select |c_#memory_$Pointer$.offset| c_ULTIMATE.start_gl_insert_~node~1.base) c_ULTIMATE.start_gl_insert_~node~1.offset v_DerPreprocessor_45) .cse18 v_DerPreprocessor_46) .cse19 v_DerPreprocessor_47) .cse20 v_DerPreprocessor_48)))) (let ((.cse8 (select (select .cse10 |c_~#gl_list~0.base|) |c_~#gl_list~0.offset|)) (.cse17 (store |c_#memory_$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) c_ULTIMATE.start_gl_insert_~node~1.offset v_DerPreprocessor_41) .cse18 v_DerPreprocessor_42) .cse19 v_DerPreprocessor_43) .cse20 v_DerPreprocessor_44)))) (let ((.cse3 (bvadd c_ULTIMATE.start_gl_insert_~node~1.offset (_ bv12 32))) (.cse4 (bvadd (_ bv16 32) c_ULTIMATE.start_gl_insert_~node~1.offset)) (.cse6 (bvadd (_ bv4 32) c_ULTIMATE.start_gl_insert_~node~1.offset)) (.cse9 (bvadd (_ bv8 32) c_ULTIMATE.start_gl_insert_~node~1.offset)) (.cse11 (select (select .cse17 |c_~#gl_list~0.base|) |c_~#gl_list~0.offset|)) (.cse12 (bvadd (_ bv4 32) .cse8))) (let ((.cse1 (let ((.cse14 (let ((.cse15 (let ((.cse16 (store .cse17 .cse11 (store (select .cse17 .cse11) .cse12 c_ULTIMATE.start_gl_insert_~node~1.base)))) (store .cse16 c_ULTIMATE.start_gl_insert_~node~1.base (store (store (select .cse16 c_ULTIMATE.start_gl_insert_~node~1.base) .cse6 .cse11) .cse9 |c_~#gl_list~0.base|))))) (store .cse15 |c_~#gl_list~0.base| (store (select .cse15 |c_~#gl_list~0.base|) |c_~#gl_list~0.offset| c_ULTIMATE.start_gl_insert_~node~1.base))))) (store .cse14 c_ULTIMATE.start_gl_insert_~node~1.base (store (store (select .cse14 c_ULTIMATE.start_gl_insert_~node~1.base) .cse3 c_ULTIMATE.start_gl_insert_~node~1.base) .cse4 c_ULTIMATE.start_gl_insert_~node~1.base)))) (.cse13 (bvadd (_ bv4 32) |c_~#gl_list~0.offset|))) (let ((.cse0 (select (select .cse1 |c_~#gl_list~0.base|) .cse13))) (= .cse0 (select (select .cse1 .cse0) (select (select (let ((.cse2 (let ((.cse5 (let ((.cse7 (store .cse10 .cse11 (store (select .cse10 .cse11) .cse12 .cse6)))) (store .cse7 c_ULTIMATE.start_gl_insert_~node~1.base (store (store (select .cse7 c_ULTIMATE.start_gl_insert_~node~1.base) .cse6 .cse8) .cse9 |c_~#gl_list~0.offset|))))) (store .cse5 |c_~#gl_list~0.base| (store (select .cse5 |c_~#gl_list~0.base|) |c_~#gl_list~0.offset| .cse6))))) (store .cse2 c_ULTIMATE.start_gl_insert_~node~1.base (store (store (select .cse2 c_ULTIMATE.start_gl_insert_~node~1.base) .cse3 .cse3) .cse4 .cse3))) |c_~#gl_list~0.base|) .cse13))))))))))) is different from false [2021-11-07 01:37:28,902 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 (store (select .cse10 v_ULTIMATE.start_gl_insert_~node~1.base_11) (_ bv12 32) v_ULTIMATE.start_gl_insert_~node~1.base_11) (_ bv16 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 (store (select .cse2 v_ULTIMATE.start_gl_insert_~node~1.base_11) (_ bv12 32) (_ bv12 32)) (_ bv16 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 01:37:34,244 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 01:37:34,245 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:37:34,245 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [993336583] [2021-11-07 01:37:34,245 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [993336583] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:37:34,245 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:37:34,245 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [] total 14 [2021-11-07 01:37:34,245 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [733112608] [2021-11-07 01:37:34,246 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-11-07 01:37:34,246 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:37:34,247 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-11-07 01:37:34,247 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=128, Unknown=2, NotChecked=46, Total=210 [2021-11-07 01:37:34,247 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 01:37:50,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:37:50,298 INFO L93 Difference]: Finished difference Result 356 states and 369 transitions. [2021-11-07 01:37:50,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-07 01:37:50,299 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 01:37:50,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:37:50,301 INFO L225 Difference]: With dead ends: 356 [2021-11-07 01:37:50,302 INFO L226 Difference]: Without dead ends: 352 [2021-11-07 01:37:50,303 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 35 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 14.6s TimeCoverageRelationStatistics Valid=85, Invalid=263, Unknown=2, NotChecked=70, Total=420 [2021-11-07 01:37:50,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 352 states. [2021-11-07 01:37:50,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 352 to 274. [2021-11-07 01:37:50,329 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 01:37:50,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 274 states to 274 states and 297 transitions. [2021-11-07 01:37:50,331 INFO L78 Accepts]: Start accepts. Automaton has 274 states and 297 transitions. Word has length 25 [2021-11-07 01:37:50,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:37:50,331 INFO L470 AbstractCegarLoop]: Abstraction has 274 states and 297 transitions. [2021-11-07 01:37:50,331 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 01:37:50,332 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states and 297 transitions. [2021-11-07 01:37:50,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-07 01:37:50,333 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:37:50,333 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 01:37:50,351 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_949cbcc6-148b-4733-bb46-c42acee84ba6/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (7)] Ended with exit code 0 [2021-11-07 01:37:50,548 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_949cbcc6-148b-4733-bb46-c42acee84ba6/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:37:50,551 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 01:37:50,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:37:50,552 INFO L85 PathProgramCache]: Analyzing trace with hash -1834071270, now seen corresponding path program 1 times [2021-11-07 01:37:50,552 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:37:50,552 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [103196855] [2021-11-07 01:37:50,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:37:50,552 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:37:50,553 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_949cbcc6-148b-4733-bb46-c42acee84ba6/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:37:50,553 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_949cbcc6-148b-4733-bb46-c42acee84ba6/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:37:50,554 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_949cbcc6-148b-4733-bb46-c42acee84ba6/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-07 01:37:50,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:37:51,000 INFO L263 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 53 conjunts are in the unsatisfiable core [2021-11-07 01:37:51,003 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:37:51,037 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:37:51,156 INFO L354 Elim1Store]: treesize reduction 61, result has 32.2 percent of original size [2021-11-07 01:37:51,156 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 01:37:51,479 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-07 01:37:51,479 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 01:37:51,643 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:37:51,644 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 689 [2021-11-07 01:37:51,652 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:37:51,658 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 01:37:52,280 INFO L354 Elim1Store]: treesize reduction 157, result has 14.2 percent of original size [2021-11-07 01:37:52,281 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 01:37:52,417 INFO L354 Elim1Store]: treesize reduction 189, result has 10.0 percent of original size [2021-11-07 01:37:52,417 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 01:37:52,422 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:37:52,423 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 150 [2021-11-07 01:37:52,444 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:37:52,449 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 01:37:52,483 INFO L883 QuantifierPusher]: Run 10 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-11-07 01:37:52,493 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 01:37:52,685 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:37:59,341 WARN L207 SmtUtils]: Spent 6.65 s on a formula simplification. DAG size of input: 95 DAG size of output: 38 [2021-11-07 01:37:59,341 INFO L354 Elim1Store]: treesize reduction 314, result has 16.9 percent of original size [2021-11-07 01:37:59,342 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 11 case distinctions, treesize of input 88 treesize of output 92 [2021-11-07 01:38:01,280 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:38:01,282 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 666 [2021-11-07 01:38:17,692 WARN L207 SmtUtils]: Spent 16.40 s on a formula simplification. DAG size of input: 89 DAG size of output: 50 [2021-11-07 01:38:17,693 INFO L354 Elim1Store]: treesize reduction 288, result has 27.1 percent of original size [2021-11-07 01:38:17,694 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 18369 treesize of output 6711 [2021-11-07 01:40:22,511 WARN L207 SmtUtils]: Spent 2.08 m on a formula simplification. DAG size of input: 264 DAG size of output: 145 [2021-11-07 01:40:22,512 INFO L354 Elim1Store]: treesize reduction 620, result has 35.2 percent of original size [2021-11-07 01:40:22,513 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 6728 treesize of output 4484 [2021-11-07 01:40:55,840 WARN L207 SmtUtils]: Spent 33.24 s on a formula simplification. DAG size of input: 137 DAG size of output: 67 [2021-11-07 01:40:55,841 INFO L354 Elim1Store]: treesize reduction 232, result has 33.9 percent of original size [2021-11-07 01:40:55,842 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 4576 treesize of output 4275 [2021-11-07 01:41:30,232 WARN L207 SmtUtils]: Spent 34.31 s on a formula simplification. DAG size of input: 137 DAG size of output: 61 [2021-11-07 01:41:30,233 INFO L354 Elim1Store]: treesize reduction 254, result has 30.0 percent of original size [2021-11-07 01:41:30,234 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 4292 treesize of output 4271 [2021-11-07 01:41:53,316 WARN L207 SmtUtils]: Spent 22.96 s on a formula simplification. DAG size of input: 137 DAG size of output: 61 [2021-11-07 01:41:53,317 INFO L354 Elim1Store]: treesize reduction 242, result has 31.1 percent of original size [2021-11-07 01:41:53,318 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 4273 treesize of output 4170 [2021-11-07 01:41:53,365 INFO L883 QuantifierPusher]: Run 10 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-11-07 01:42:20,586 WARN L207 SmtUtils]: Spent 27.12 s on a formula simplification. DAG size of input: 137 DAG size of output: 62 [2021-11-07 01:42:20,586 INFO L354 Elim1Store]: treesize reduction 242, result has 31.1 percent of original size [2021-11-07 01:42:20,587 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 4177 treesize of output 4178 [2021-11-07 01:42:40,129 WARN L207 SmtUtils]: Spent 19.36 s on a formula simplification. DAG size of input: 137 DAG size of output: 68 [2021-11-07 01:42:40,129 INFO L354 Elim1Store]: treesize reduction 232, result has 33.9 percent of original size [2021-11-07 01:42:40,130 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 4190 treesize of output 3473 [2021-11-07 01:42:54,504 WARN L207 SmtUtils]: Spent 14.21 s on a formula simplification. DAG size of input: 133 DAG size of output: 57 [2021-11-07 01:42:54,504 INFO L354 Elim1Store]: treesize reduction 228, result has 29.0 percent of original size [2021-11-07 01:42:54,505 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 3495 treesize of output 3451 [2021-11-07 01:43:09,739 WARN L207 SmtUtils]: Spent 15.08 s on a formula simplification. DAG size of input: 133 DAG size of output: 56 [2021-11-07 01:43:09,740 INFO L354 Elim1Store]: treesize reduction 228, result has 29.0 percent of original size [2021-11-07 01:43:09,741 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 3469 treesize of output 3297 [2021-11-07 01:43:24,022 WARN L207 SmtUtils]: Spent 14.12 s on a formula simplification. DAG size of input: 133 DAG size of output: 60 [2021-11-07 01:43:24,023 INFO L354 Elim1Store]: treesize reduction 220, result has 31.5 percent of original size [2021-11-07 01:43:24,024 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 3307 treesize of output 3367 [2021-11-07 01:43:24,070 INFO L883 QuantifierPusher]: Run 20 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-11-07 01:43:36,484 WARN L207 SmtUtils]: Spent 12.25 s on a formula simplification. DAG size of input: 133 DAG size of output: 61 [2021-11-07 01:43:36,485 INFO L354 Elim1Store]: treesize reduction 220, result has 31.5 percent of original size [2021-11-07 01:43:36,486 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 3377 treesize of output 3437 [2021-11-07 01:43:47,104 WARN L207 SmtUtils]: Spent 10.36 s on a formula simplification. DAG size of input: 133 DAG size of output: 60 [2021-11-07 01:43:47,105 INFO L354 Elim1Store]: treesize reduction 220, result has 31.5 percent of original size [2021-11-07 01:43:47,106 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 3461 treesize of output 3489 [2021-11-07 01:43:48,967 INFO L354 Elim1Store]: treesize reduction 10, result has 65.5 percent of original size [2021-11-07 01:43:48,968 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 3499 treesize of output 3509 [2021-11-07 01:43:52,176 INFO L354 Elim1Store]: treesize reduction 10, result has 65.5 percent of original size [2021-11-07 01:43:52,177 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 3524 treesize of output 3534 [2021-11-07 01:43:56,212 INFO L354 Elim1Store]: treesize reduction 10, result has 65.5 percent of original size [2021-11-07 01:43:56,214 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 3549 treesize of output 3559 [2021-11-07 01:43:56,265 INFO L883 QuantifierPusher]: Run 30 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-11-07 01:43:59,522 INFO L354 Elim1Store]: treesize reduction 10, result has 65.5 percent of original size [2021-11-07 01:43:59,524 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 3574 treesize of output 3584