./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/memsafety/test-0102-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 47ea0209 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68653f16-dd8d-4e1b-b9a5-ba98d87e3d2a/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68653f16-dd8d-4e1b-b9a5-ba98d87e3d2a/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_68653f16-dd8d-4e1b-b9a5-ba98d87e3d2a/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68653f16-dd8d-4e1b-b9a5-ba98d87e3d2a/bin/utaipan-UUZaoUuFF8/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/memsafety/test-0102-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68653f16-dd8d-4e1b-b9a5-ba98d87e3d2a/bin/utaipan-UUZaoUuFF8/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68653f16-dd8d-4e1b-b9a5-ba98d87e3d2a/bin/utaipan-UUZaoUuFF8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash d10910cb8c44ec8f982d35122d9e66670129ee7c874265953b685f7f63a30072 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 01:55:54,670 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 01:55:54,672 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 01:55:54,719 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 01:55:54,720 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 01:55:54,728 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 01:55:54,730 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 01:55:54,734 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 01:55:54,737 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 01:55:54,745 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 01:55:54,746 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 01:55:54,747 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 01:55:54,747 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 01:55:54,748 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 01:55:54,750 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 01:55:54,751 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 01:55:54,752 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 01:55:54,753 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 01:55:54,756 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 01:55:54,770 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 01:55:54,772 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 01:55:54,774 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 01:55:54,781 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 01:55:54,782 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 01:55:54,786 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 01:55:54,786 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 01:55:54,787 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 01:55:54,789 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 01:55:54,790 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 01:55:54,791 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 01:55:54,792 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 01:55:54,793 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 01:55:54,795 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 01:55:54,796 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 01:55:54,798 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 01:55:54,798 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 01:55:54,799 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 01:55:54,799 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 01:55:54,799 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 01:55:54,800 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 01:55:54,801 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 01:55:54,802 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68653f16-dd8d-4e1b-b9a5-ba98d87e3d2a/bin/utaipan-UUZaoUuFF8/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2021-11-07 01:55:54,846 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 01:55:54,846 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 01:55:54,847 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 01:55:54,847 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 01:55:54,847 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 01:55:54,847 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 01:55:54,848 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-07 01:55:54,851 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 01:55:54,851 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 01:55:54,851 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-07 01:55:54,852 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-07 01:55:54,853 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 01:55:54,853 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-07 01:55:54,853 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-07 01:55:54,853 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-07 01:55:54,855 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-07 01:55:54,855 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-07 01:55:54,855 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 01:55:54,855 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-07 01:55:54,855 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-07 01:55:54,856 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 01:55:54,856 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-07 01:55:54,856 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 01:55:54,856 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-11-07 01:55:54,857 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-11-07 01:55:54,857 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-11-07 01:55:54,859 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 01:55:54,859 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 01:55:54,859 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-07 01:55:54,859 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 01:55:54,860 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 01:55:54,860 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 01:55:54,860 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 01:55:54,860 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 01:55:54,861 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 01:55:54,861 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-07 01:55:54,861 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 01:55:54,861 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 01:55:54,861 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 01:55:54,862 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_68653f16-dd8d-4e1b-b9a5-ba98d87e3d2a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68653f16-dd8d-4e1b-b9a5-ba98d87e3d2a/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d10910cb8c44ec8f982d35122d9e66670129ee7c874265953b685f7f63a30072 [2021-11-07 01:55:55,123 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 01:55:55,157 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 01:55:55,160 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 01:55:55,161 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 01:55:55,162 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 01:55:55,163 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68653f16-dd8d-4e1b-b9a5-ba98d87e3d2a/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/memsafety/test-0102-2.i [2021-11-07 01:55:55,228 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68653f16-dd8d-4e1b-b9a5-ba98d87e3d2a/bin/utaipan-UUZaoUuFF8/data/d4f10ba1d/195f8dce5b2f438793b65a3d3c5f05cf/FLAG7b550b4ca [2021-11-07 01:55:55,783 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 01:55:55,783 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68653f16-dd8d-4e1b-b9a5-ba98d87e3d2a/sv-benchmarks/c/memsafety/test-0102-2.i [2021-11-07 01:55:55,814 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68653f16-dd8d-4e1b-b9a5-ba98d87e3d2a/bin/utaipan-UUZaoUuFF8/data/d4f10ba1d/195f8dce5b2f438793b65a3d3c5f05cf/FLAG7b550b4ca [2021-11-07 01:55:56,088 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68653f16-dd8d-4e1b-b9a5-ba98d87e3d2a/bin/utaipan-UUZaoUuFF8/data/d4f10ba1d/195f8dce5b2f438793b65a3d3c5f05cf [2021-11-07 01:55:56,091 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 01:55:56,092 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 01:55:56,094 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 01:55:56,094 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 01:55:56,098 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 01:55:56,098 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:55:56" (1/1) ... [2021-11-07 01:55:56,099 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7176ed18 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:55:56, skipping insertion in model container [2021-11-07 01:55:56,100 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:55:56" (1/1) ... [2021-11-07 01:55:56,107 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 01:55:56,150 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 01:55:56,594 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:55:56,608 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 01:55:56,609 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@5aedfd56 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:55:56, skipping insertion in model container [2021-11-07 01:55:56,609 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 01:55:56,610 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-07 01:55:56,613 INFO L168 Benchmark]: Toolchain (without parser) took 518.62 ms. Allocated memory is still 140.5 MB. Free memory was 110.3 MB in the beginning and 114.0 MB in the end (delta: -3.7 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-11-07 01:55:56,615 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 96.5 MB. Free memory is still 56.0 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 01:55:56,616 INFO L168 Benchmark]: CACSL2BoogieTranslator took 515.86 ms. Allocated memory is still 140.5 MB. Free memory was 110.3 MB in the beginning and 114.0 MB in the end (delta: -3.7 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-11-07 01:55:56,619 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 96.5 MB. Free memory is still 56.0 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 515.86 ms. Allocated memory is still 140.5 MB. Free memory was 110.3 MB in the beginning and 114.0 MB in the end (delta: -3.7 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 551]: 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_68653f16-dd8d-4e1b-b9a5-ba98d87e3d2a/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68653f16-dd8d-4e1b-b9a5-ba98d87e3d2a/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_68653f16-dd8d-4e1b-b9a5-ba98d87e3d2a/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68653f16-dd8d-4e1b-b9a5-ba98d87e3d2a/bin/utaipan-UUZaoUuFF8/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/memsafety/test-0102-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68653f16-dd8d-4e1b-b9a5-ba98d87e3d2a/bin/utaipan-UUZaoUuFF8/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68653f16-dd8d-4e1b-b9a5-ba98d87e3d2a/bin/utaipan-UUZaoUuFF8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash d10910cb8c44ec8f982d35122d9e66670129ee7c874265953b685f7f63a30072 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 01:55:58,911 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 01:55:58,913 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 01:55:58,965 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 01:55:58,966 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 01:55:58,970 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 01:55:58,972 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 01:55:58,976 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 01:55:58,980 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 01:55:58,988 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 01:55:58,989 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 01:55:58,991 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 01:55:58,991 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 01:55:58,994 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 01:55:58,996 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 01:55:59,001 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 01:55:59,002 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 01:55:59,003 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 01:55:59,005 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 01:55:59,014 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 01:55:59,016 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 01:55:59,021 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 01:55:59,022 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 01:55:59,023 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 01:55:59,027 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 01:55:59,027 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 01:55:59,027 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 01:55:59,028 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 01:55:59,029 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 01:55:59,030 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 01:55:59,030 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 01:55:59,031 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 01:55:59,032 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 01:55:59,033 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 01:55:59,034 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 01:55:59,034 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 01:55:59,035 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 01:55:59,035 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 01:55:59,035 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 01:55:59,036 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 01:55:59,037 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 01:55:59,038 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68653f16-dd8d-4e1b-b9a5-ba98d87e3d2a/bin/utaipan-UUZaoUuFF8/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf [2021-11-07 01:55:59,069 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 01:55:59,069 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 01:55:59,070 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 01:55:59,070 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 01:55:59,070 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 01:55:59,071 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 01:55:59,071 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 01:55:59,071 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 01:55:59,071 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 01:55:59,072 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-07 01:55:59,072 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-07 01:55:59,072 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 01:55:59,072 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-07 01:55:59,073 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-07 01:55:59,073 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 01:55:59,073 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-07 01:55:59,073 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 01:55:59,073 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-11-07 01:55:59,073 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-11-07 01:55:59,074 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-11-07 01:55:59,074 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 01:55:59,074 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 01:55:59,074 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-07 01:55:59,074 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-07 01:55:59,075 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-07 01:55:59,075 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 01:55:59,075 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 01:55:59,075 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 01:55:59,075 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 01:55:59,076 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 01:55:59,076 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 01:55:59,076 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 01:55:59,076 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-07 01:55:59,076 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-07 01:55:59,076 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 01:55:59,077 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 01:55:59,077 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_68653f16-dd8d-4e1b-b9a5-ba98d87e3d2a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68653f16-dd8d-4e1b-b9a5-ba98d87e3d2a/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d10910cb8c44ec8f982d35122d9e66670129ee7c874265953b685f7f63a30072 [2021-11-07 01:55:59,453 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 01:55:59,480 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 01:55:59,483 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 01:55:59,484 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 01:55:59,485 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 01:55:59,486 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68653f16-dd8d-4e1b-b9a5-ba98d87e3d2a/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/memsafety/test-0102-2.i [2021-11-07 01:55:59,558 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68653f16-dd8d-4e1b-b9a5-ba98d87e3d2a/bin/utaipan-UUZaoUuFF8/data/749b28bbb/c0f34c203928469c81711014e04f42ff/FLAG5bb4f91ba [2021-11-07 01:56:00,228 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 01:56:00,228 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68653f16-dd8d-4e1b-b9a5-ba98d87e3d2a/sv-benchmarks/c/memsafety/test-0102-2.i [2021-11-07 01:56:00,243 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68653f16-dd8d-4e1b-b9a5-ba98d87e3d2a/bin/utaipan-UUZaoUuFF8/data/749b28bbb/c0f34c203928469c81711014e04f42ff/FLAG5bb4f91ba [2021-11-07 01:56:00,457 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68653f16-dd8d-4e1b-b9a5-ba98d87e3d2a/bin/utaipan-UUZaoUuFF8/data/749b28bbb/c0f34c203928469c81711014e04f42ff [2021-11-07 01:56:00,459 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 01:56:00,461 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 01:56:00,462 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 01:56:00,462 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 01:56:00,466 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 01:56:00,467 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:56:00" (1/1) ... [2021-11-07 01:56:00,468 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5815ef95 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:56:00, skipping insertion in model container [2021-11-07 01:56:00,468 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:56:00" (1/1) ... [2021-11-07 01:56:00,476 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 01:56:00,517 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 01:56:00,863 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:56:00,878 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-07 01:56:00,889 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 01:56:00,932 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:56:00,948 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 01:56:01,021 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:56:01,058 INFO L208 MainTranslator]: Completed translation [2021-11-07 01:56:01,058 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:56:01 WrapperNode [2021-11-07 01:56:01,058 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 01:56:01,060 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 01:56:01,060 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 01:56:01,060 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 01:56:01,067 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:56:01" (1/1) ... [2021-11-07 01:56:01,086 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:56:01" (1/1) ... [2021-11-07 01:56:01,119 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 01:56:01,120 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 01:56:01,120 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 01:56:01,120 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 01:56:01,130 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:56:01" (1/1) ... [2021-11-07 01:56:01,131 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:56:01" (1/1) ... [2021-11-07 01:56:01,142 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:56:01" (1/1) ... [2021-11-07 01:56:01,142 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:56:01" (1/1) ... [2021-11-07 01:56:01,172 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:56:01" (1/1) ... [2021-11-07 01:56:01,182 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:56:01" (1/1) ... [2021-11-07 01:56:01,185 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:56:01" (1/1) ... [2021-11-07 01:56:01,189 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 01:56:01,190 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 01:56:01,190 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 01:56:01,190 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 01:56:01,191 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:56:01" (1/1) ... [2021-11-07 01:56:01,212 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 01:56:01,223 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68653f16-dd8d-4e1b-b9a5-ba98d87e3d2a/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 01:56:01,242 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68653f16-dd8d-4e1b-b9a5-ba98d87e3d2a/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-07 01:56:01,247 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68653f16-dd8d-4e1b-b9a5-ba98d87e3d2a/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-07 01:56:01,296 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-07 01:56:01,296 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-07 01:56:01,297 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 01:56:01,297 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-07 01:56:01,297 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-07 01:56:01,297 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-07 01:56:01,299 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-07 01:56:01,299 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-07 01:56:01,300 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 01:56:01,300 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 01:56:02,140 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 01:56:02,140 INFO L299 CfgBuilder]: Removed 37 assume(true) statements. [2021-11-07 01:56:02,142 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:56:02 BoogieIcfgContainer [2021-11-07 01:56:02,142 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 01:56:02,144 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 01:56:02,144 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 01:56:02,147 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 01:56:02,147 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 01:56:00" (1/3) ... [2021-11-07 01:56:02,148 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ea034c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:56:02, skipping insertion in model container [2021-11-07 01:56:02,148 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:56:01" (2/3) ... [2021-11-07 01:56:02,170 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ea034c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:56:02, skipping insertion in model container [2021-11-07 01:56:02,170 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:56:02" (3/3) ... [2021-11-07 01:56:02,172 INFO L111 eAbstractionObserver]: Analyzing ICFG test-0102-2.i [2021-11-07 01:56:02,178 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 01:56:02,178 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 57 error locations. [2021-11-07 01:56:02,237 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 01:56:02,247 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=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, 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 01:56:02,247 INFO L340 AbstractCegarLoop]: Starting to check reachability of 57 error locations. [2021-11-07 01:56:02,271 INFO L276 IsEmpty]: Start isEmpty. Operand has 121 states, 63 states have (on average 2.111111111111111) internal successors, (133), 120 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:56:02,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-11-07 01:56:02,284 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:56:02,294 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-11-07 01:56:02,294 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr42REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 53 more)] === [2021-11-07 01:56:02,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:56:02,299 INFO L85 PathProgramCache]: Analyzing trace with hash 28828812, now seen corresponding path program 1 times [2021-11-07 01:56:02,314 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:56:02,314 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [98152000] [2021-11-07 01:56:02,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:56:02,315 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:56:02,315 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68653f16-dd8d-4e1b-b9a5-ba98d87e3d2a/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:56:02,322 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68653f16-dd8d-4e1b-b9a5-ba98d87e3d2a/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:56:02,364 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68653f16-dd8d-4e1b-b9a5-ba98d87e3d2a/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-07 01:56:02,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:56:02,419 INFO L263 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-07 01:56:02,423 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:56:02,463 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 01:56:02,463 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:56:02,483 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 01:56:02,484 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:56:02,484 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [98152000] [2021-11-07 01:56:02,485 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [98152000] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:56:02,485 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:56:02,486 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-07 01:56:02,487 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [286573102] [2021-11-07 01:56:02,492 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-07 01:56:02,493 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:56:02,507 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-07 01:56:02,509 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-07 01:56:02,512 INFO L87 Difference]: Start difference. First operand has 121 states, 63 states have (on average 2.111111111111111) internal successors, (133), 120 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 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 01:56:02,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:56:02,538 INFO L93 Difference]: Finished difference Result 121 states and 125 transitions. [2021-11-07 01:56:02,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-07 01:56:02,539 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 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 5 [2021-11-07 01:56:02,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:56:02,549 INFO L225 Difference]: With dead ends: 121 [2021-11-07 01:56:02,549 INFO L226 Difference]: Without dead ends: 119 [2021-11-07 01:56:02,550 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 8 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 01:56:02,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2021-11-07 01:56:02,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 119. [2021-11-07 01:56:02,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119 states, 62 states have (on average 1.9838709677419355) internal successors, (123), 118 states have internal predecessors, (123), 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 01:56:02,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 123 transitions. [2021-11-07 01:56:02,601 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 123 transitions. Word has length 5 [2021-11-07 01:56:02,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:56:02,601 INFO L470 AbstractCegarLoop]: Abstraction has 119 states and 123 transitions. [2021-11-07 01:56:02,602 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 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 01:56:02,602 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 123 transitions. [2021-11-07 01:56:02,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-11-07 01:56:02,603 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:56:02,603 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-11-07 01:56:02,622 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68653f16-dd8d-4e1b-b9a5-ba98d87e3d2a/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-07 01:56:02,814 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68653f16-dd8d-4e1b-b9a5-ba98d87e3d2a/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:56:02,815 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 53 more)] === [2021-11-07 01:56:02,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:56:02,816 INFO L85 PathProgramCache]: Analyzing trace with hash 889540459, now seen corresponding path program 1 times [2021-11-07 01:56:02,816 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:56:02,817 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [397271657] [2021-11-07 01:56:02,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:56:02,817 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:56:02,817 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68653f16-dd8d-4e1b-b9a5-ba98d87e3d2a/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:56:02,819 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68653f16-dd8d-4e1b-b9a5-ba98d87e3d2a/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:56:02,832 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68653f16-dd8d-4e1b-b9a5-ba98d87e3d2a/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-07 01:56:02,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:56:02,912 INFO L263 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-07 01:56:02,914 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:56:02,986 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 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-07 01:56:03,100 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:56:03,102 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:56:03,273 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 01:56:03,273 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:56:03,274 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [397271657] [2021-11-07 01:56:03,274 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [397271657] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:56:03,275 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:56:03,275 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2021-11-07 01:56:03,275 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2003961914] [2021-11-07 01:56:03,276 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-07 01:56:03,277 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:56:03,278 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-07 01:56:03,278 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-07 01:56:03,279 INFO L87 Difference]: Start difference. First operand 119 states and 123 transitions. Second operand has 6 states, 5 states have (on average 2.0) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:56:04,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:56:04,150 INFO L93 Difference]: Finished difference Result 119 states and 123 transitions. [2021-11-07 01:56:04,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 01:56:04,151 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.0) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2021-11-07 01:56:04,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:56:04,153 INFO L225 Difference]: With dead ends: 119 [2021-11-07 01:56:04,153 INFO L226 Difference]: Without dead ends: 119 [2021-11-07 01:56:04,154 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-07 01:56:04,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2021-11-07 01:56:04,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 117. [2021-11-07 01:56:04,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117 states, 62 states have (on average 1.9516129032258065) internal successors, (121), 116 states have internal predecessors, (121), 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 01:56:04,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 121 transitions. [2021-11-07 01:56:04,164 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 121 transitions. Word has length 6 [2021-11-07 01:56:04,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:56:04,164 INFO L470 AbstractCegarLoop]: Abstraction has 117 states and 121 transitions. [2021-11-07 01:56:04,164 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.0) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:56:04,165 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 121 transitions. [2021-11-07 01:56:04,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-11-07 01:56:04,165 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:56:04,165 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-11-07 01:56:04,174 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68653f16-dd8d-4e1b-b9a5-ba98d87e3d2a/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-07 01:56:04,372 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68653f16-dd8d-4e1b-b9a5-ba98d87e3d2a/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:56:04,372 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 53 more)] === [2021-11-07 01:56:04,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:56:04,373 INFO L85 PathProgramCache]: Analyzing trace with hash 889540458, now seen corresponding path program 1 times [2021-11-07 01:56:04,373 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:56:04,374 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1056756496] [2021-11-07 01:56:04,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:56:04,374 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:56:04,374 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68653f16-dd8d-4e1b-b9a5-ba98d87e3d2a/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:56:04,375 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68653f16-dd8d-4e1b-b9a5-ba98d87e3d2a/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:56:04,380 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68653f16-dd8d-4e1b-b9a5-ba98d87e3d2a/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-07 01:56:04,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:56:04,442 INFO L263 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-07 01:56:04,443 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:56:04,460 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 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-07 01:56:04,503 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:56:04,503 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:56:04,523 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 01:56:04,524 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:56:04,524 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1056756496] [2021-11-07 01:56:04,524 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1056756496] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:56:04,524 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:56:04,524 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-07 01:56:04,525 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1281792241] [2021-11-07 01:56:04,525 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 01:56:04,525 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:56:04,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 01:56:04,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 01:56:04,526 INFO L87 Difference]: Start difference. First operand 117 states and 121 transitions. Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 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 01:56:04,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:56:04,816 INFO L93 Difference]: Finished difference Result 143 states and 149 transitions. [2021-11-07 01:56:04,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 01:56:04,820 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 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 01:56:04,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:56:04,821 INFO L225 Difference]: With dead ends: 143 [2021-11-07 01:56:04,821 INFO L226 Difference]: Without dead ends: 143 [2021-11-07 01:56:04,822 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 1 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 01:56:04,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states. [2021-11-07 01:56:04,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 113. [2021-11-07 01:56:04,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113 states, 62 states have (on average 1.8870967741935485) internal successors, (117), 112 states have internal predecessors, (117), 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 01:56:04,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 117 transitions. [2021-11-07 01:56:04,837 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 117 transitions. Word has length 6 [2021-11-07 01:56:04,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:56:04,837 INFO L470 AbstractCegarLoop]: Abstraction has 113 states and 117 transitions. [2021-11-07 01:56:04,838 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 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 01:56:04,838 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 117 transitions. [2021-11-07 01:56:04,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-11-07 01:56:04,838 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:56:04,839 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:56:04,854 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68653f16-dd8d-4e1b-b9a5-ba98d87e3d2a/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-07 01:56:05,049 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68653f16-dd8d-4e1b-b9a5-ba98d87e3d2a/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:56:05,050 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 53 more)] === [2021-11-07 01:56:05,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:56:05,051 INFO L85 PathProgramCache]: Analyzing trace with hash -1986689261, now seen corresponding path program 1 times [2021-11-07 01:56:05,051 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:56:05,052 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [700337451] [2021-11-07 01:56:05,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:56:05,052 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:56:05,052 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68653f16-dd8d-4e1b-b9a5-ba98d87e3d2a/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:56:05,055 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68653f16-dd8d-4e1b-b9a5-ba98d87e3d2a/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:56:05,056 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68653f16-dd8d-4e1b-b9a5-ba98d87e3d2a/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-07 01:56:05,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:56:05,149 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-07 01:56:05,150 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:56:05,180 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 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-07 01:56:05,202 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 01:56:05,202 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:56:05,274 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 01:56:05,274 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:56:05,274 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [700337451] [2021-11-07 01:56:05,274 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [700337451] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:56:05,275 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:56:05,275 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2021-11-07 01:56:05,275 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1108854907] [2021-11-07 01:56:05,275 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 01:56:05,276 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:56:05,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 01:56:05,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 01:56:05,276 INFO L87 Difference]: Start difference. First operand 113 states and 117 transitions. Second operand has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 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 01:56:05,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:56:05,551 INFO L93 Difference]: Finished difference Result 118 states and 122 transitions. [2021-11-07 01:56:05,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 01:56:05,552 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 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 10 [2021-11-07 01:56:05,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:56:05,553 INFO L225 Difference]: With dead ends: 118 [2021-11-07 01:56:05,553 INFO L226 Difference]: Without dead ends: 118 [2021-11-07 01:56:05,554 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 01:56:05,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2021-11-07 01:56:05,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 111. [2021-11-07 01:56:05,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 62 states have (on average 1.8548387096774193) internal successors, (115), 110 states have internal predecessors, (115), 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 01:56:05,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 115 transitions. [2021-11-07 01:56:05,562 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 115 transitions. Word has length 10 [2021-11-07 01:56:05,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:56:05,562 INFO L470 AbstractCegarLoop]: Abstraction has 111 states and 115 transitions. [2021-11-07 01:56:05,563 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 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 01:56:05,563 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 115 transitions. [2021-11-07 01:56:05,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-11-07 01:56:05,564 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:56:05,564 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:56:05,572 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68653f16-dd8d-4e1b-b9a5-ba98d87e3d2a/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-07 01:56:05,768 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68653f16-dd8d-4e1b-b9a5-ba98d87e3d2a/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:56:05,768 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 53 more)] === [2021-11-07 01:56:05,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:56:05,769 INFO L85 PathProgramCache]: Analyzing trace with hash -1986689262, now seen corresponding path program 1 times [2021-11-07 01:56:05,769 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:56:05,769 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [803639829] [2021-11-07 01:56:05,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:56:05,770 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:56:05,770 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68653f16-dd8d-4e1b-b9a5-ba98d87e3d2a/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:56:05,771 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68653f16-dd8d-4e1b-b9a5-ba98d87e3d2a/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:56:05,772 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68653f16-dd8d-4e1b-b9a5-ba98d87e3d2a/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-07 01:56:05,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:56:05,847 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 01:56:05,848 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:56:05,882 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 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-07 01:56:05,896 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 01:56:05,898 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:56:05,936 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 01:56:05,937 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:56:05,937 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [803639829] [2021-11-07 01:56:05,937 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [803639829] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:56:05,937 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:56:05,938 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-07 01:56:05,938 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1671261229] [2021-11-07 01:56:05,938 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 01:56:05,939 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:56:05,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 01:56:05,940 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 01:56:05,940 INFO L87 Difference]: Start difference. First operand 111 states and 115 transitions. Second operand has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:56:06,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:56:06,156 INFO L93 Difference]: Finished difference Result 142 states and 148 transitions. [2021-11-07 01:56:06,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 01:56:06,157 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2021-11-07 01:56:06,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:56:06,158 INFO L225 Difference]: With dead ends: 142 [2021-11-07 01:56:06,158 INFO L226 Difference]: Without dead ends: 142 [2021-11-07 01:56:06,158 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 01:56:06,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2021-11-07 01:56:06,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 109. [2021-11-07 01:56:06,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109 states, 62 states have (on average 1.8225806451612903) internal successors, (113), 108 states have internal predecessors, (113), 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 01:56:06,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 113 transitions. [2021-11-07 01:56:06,166 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 113 transitions. Word has length 10 [2021-11-07 01:56:06,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:56:06,167 INFO L470 AbstractCegarLoop]: Abstraction has 109 states and 113 transitions. [2021-11-07 01:56:06,167 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:56:06,167 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 113 transitions. [2021-11-07 01:56:06,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-11-07 01:56:06,168 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:56:06,168 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:56:06,180 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68653f16-dd8d-4e1b-b9a5-ba98d87e3d2a/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-07 01:56:06,376 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68653f16-dd8d-4e1b-b9a5-ba98d87e3d2a/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:56:06,379 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr6REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 53 more)] === [2021-11-07 01:56:06,379 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:56:06,380 INFO L85 PathProgramCache]: Analyzing trace with hash 2052066035, now seen corresponding path program 1 times [2021-11-07 01:56:06,380 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:56:06,380 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1005035173] [2021-11-07 01:56:06,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:56:06,380 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:56:06,381 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68653f16-dd8d-4e1b-b9a5-ba98d87e3d2a/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:56:06,381 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68653f16-dd8d-4e1b-b9a5-ba98d87e3d2a/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:56:06,383 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68653f16-dd8d-4e1b-b9a5-ba98d87e3d2a/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-07 01:56:06,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:56:06,499 INFO L263 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-07 01:56:06,500 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:56:06,518 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 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-07 01:56:06,603 INFO L354 Elim1Store]: treesize reduction 12, result has 40.0 percent of original size [2021-11-07 01:56:06,603 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 21 [2021-11-07 01:56:06,729 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 01:56:06,730 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:56:06,814 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 01:56:06,815 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:56:06,815 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1005035173] [2021-11-07 01:56:06,815 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1005035173] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:56:06,816 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:56:06,816 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 7 [2021-11-07 01:56:06,816 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1996561554] [2021-11-07 01:56:06,816 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-07 01:56:06,817 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:56:06,817 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-07 01:56:06,817 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-11-07 01:56:06,818 INFO L87 Difference]: Start difference. First operand 109 states and 113 transitions. Second operand has 8 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 8 states have internal predecessors, (17), 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 01:56:07,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:56:07,294 INFO L93 Difference]: Finished difference Result 143 states and 149 transitions. [2021-11-07 01:56:07,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-07 01:56:07,295 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 8 states have internal predecessors, (17), 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 12 [2021-11-07 01:56:07,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:56:07,296 INFO L225 Difference]: With dead ends: 143 [2021-11-07 01:56:07,296 INFO L226 Difference]: Without dead ends: 143 [2021-11-07 01:56:07,297 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 14 SyntacticMatches, 2 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 2 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2021-11-07 01:56:07,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states. [2021-11-07 01:56:07,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 107. [2021-11-07 01:56:07,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107 states, 62 states have (on average 1.7903225806451613) internal successors, (111), 106 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:56:07,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 111 transitions. [2021-11-07 01:56:07,303 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 111 transitions. Word has length 12 [2021-11-07 01:56:07,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:56:07,303 INFO L470 AbstractCegarLoop]: Abstraction has 107 states and 111 transitions. [2021-11-07 01:56:07,303 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 8 states have internal predecessors, (17), 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 01:56:07,303 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 111 transitions. [2021-11-07 01:56:07,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-11-07 01:56:07,304 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:56:07,304 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:56:07,326 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68653f16-dd8d-4e1b-b9a5-ba98d87e3d2a/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-07 01:56:07,504 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68653f16-dd8d-4e1b-b9a5-ba98d87e3d2a/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:56:07,504 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr7REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 53 more)] === [2021-11-07 01:56:07,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:56:07,505 INFO L85 PathProgramCache]: Analyzing trace with hash 2052066036, now seen corresponding path program 1 times [2021-11-07 01:56:07,505 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:56:07,506 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1256755278] [2021-11-07 01:56:07,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:56:07,506 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:56:07,506 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68653f16-dd8d-4e1b-b9a5-ba98d87e3d2a/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:56:07,507 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68653f16-dd8d-4e1b-b9a5-ba98d87e3d2a/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:56:07,524 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68653f16-dd8d-4e1b-b9a5-ba98d87e3d2a/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-07 01:56:07,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:56:07,643 INFO L263 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 18 conjunts are in the unsatisfiable core [2021-11-07 01:56:07,644 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:56:07,660 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 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-07 01:56:07,665 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 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-07 01:56:07,799 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-11-07 01:56:07,800 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 29 treesize of output 31 [2021-11-07 01:56:07,807 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-07 01:56:07,808 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 28 treesize of output 24 [2021-11-07 01:56:07,915 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 01:56:07,915 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:56:08,783 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 01:56:08,784 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:56:08,784 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1256755278] [2021-11-07 01:56:08,784 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1256755278] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:56:08,784 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:56:08,785 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 9 [2021-11-07 01:56:08,785 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [473823032] [2021-11-07 01:56:08,785 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-07 01:56:08,785 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:56:08,786 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-07 01:56:08,786 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2021-11-07 01:56:08,787 INFO L87 Difference]: Start difference. First operand 107 states and 111 transitions. Second operand has 10 states, 9 states have (on average 2.4444444444444446) internal successors, (22), 10 states have internal predecessors, (22), 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 01:56:26,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:56:26,100 INFO L93 Difference]: Finished difference Result 137 states and 143 transitions. [2021-11-07 01:56:26,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-07 01:56:26,101 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.4444444444444446) internal successors, (22), 10 states have internal predecessors, (22), 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 12 [2021-11-07 01:56:26,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:56:26,103 INFO L225 Difference]: With dead ends: 137 [2021-11-07 01:56:26,103 INFO L226 Difference]: Without dead ends: 137 [2021-11-07 01:56:26,103 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=95, Invalid=211, Unknown=0, NotChecked=0, Total=306 [2021-11-07 01:56:26,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2021-11-07 01:56:26,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 105. [2021-11-07 01:56:26,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 62 states have (on average 1.7580645161290323) internal successors, (109), 104 states have internal predecessors, (109), 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 01:56:26,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 109 transitions. [2021-11-07 01:56:26,112 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 109 transitions. Word has length 12 [2021-11-07 01:56:26,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:56:26,112 INFO L470 AbstractCegarLoop]: Abstraction has 105 states and 109 transitions. [2021-11-07 01:56:26,113 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.4444444444444446) internal successors, (22), 10 states have internal predecessors, (22), 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 01:56:26,113 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 109 transitions. [2021-11-07 01:56:26,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-11-07 01:56:26,114 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:56:26,114 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:56:26,127 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68653f16-dd8d-4e1b-b9a5-ba98d87e3d2a/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-07 01:56:26,314 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68653f16-dd8d-4e1b-b9a5-ba98d87e3d2a/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:56:26,315 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr8REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 53 more)] === [2021-11-07 01:56:26,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:56:26,315 INFO L85 PathProgramCache]: Analyzing trace with hash 645470996, now seen corresponding path program 1 times [2021-11-07 01:56:26,315 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:56:26,315 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1713336842] [2021-11-07 01:56:26,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:56:26,315 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:56:26,316 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68653f16-dd8d-4e1b-b9a5-ba98d87e3d2a/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:56:26,316 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68653f16-dd8d-4e1b-b9a5-ba98d87e3d2a/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:56:26,320 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68653f16-dd8d-4e1b-b9a5-ba98d87e3d2a/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-07 01:56:26,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:56:26,456 INFO L263 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-07 01:56:26,457 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:56:26,502 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 01:56:26,503 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:56:26,539 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:56:26,540 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:56:26,541 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1713336842] [2021-11-07 01:56:26,541 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1713336842] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:56:26,541 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:56:26,542 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-07 01:56:26,542 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1485937096] [2021-11-07 01:56:26,542 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 01:56:26,542 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:56:26,543 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 01:56:26,543 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 01:56:26,543 INFO L87 Difference]: Start difference. First operand 105 states and 109 transitions. Second operand has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:56:26,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:56:26,986 INFO L93 Difference]: Finished difference Result 140 states and 146 transitions. [2021-11-07 01:56:26,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 01:56:26,986 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2021-11-07 01:56:26,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:56:26,988 INFO L225 Difference]: With dead ends: 140 [2021-11-07 01:56:26,988 INFO L226 Difference]: Without dead ends: 140 [2021-11-07 01:56:26,988 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 25 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 01:56:26,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2021-11-07 01:56:26,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 102. [2021-11-07 01:56:26,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102 states, 62 states have (on average 1.7096774193548387) internal successors, (106), 101 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:56:26,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 106 transitions. [2021-11-07 01:56:26,992 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 106 transitions. Word has length 14 [2021-11-07 01:56:26,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:56:26,992 INFO L470 AbstractCegarLoop]: Abstraction has 102 states and 106 transitions. [2021-11-07 01:56:26,992 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:56:26,992 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 106 transitions. [2021-11-07 01:56:26,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-11-07 01:56:26,993 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:56:26,993 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:56:27,008 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68653f16-dd8d-4e1b-b9a5-ba98d87e3d2a/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-11-07 01:56:27,193 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68653f16-dd8d-4e1b-b9a5-ba98d87e3d2a/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:56:27,194 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr9REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 53 more)] === [2021-11-07 01:56:27,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:56:27,194 INFO L85 PathProgramCache]: Analyzing trace with hash 645470997, now seen corresponding path program 1 times [2021-11-07 01:56:27,195 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:56:27,195 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [5776158] [2021-11-07 01:56:27,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:56:27,195 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:56:27,195 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68653f16-dd8d-4e1b-b9a5-ba98d87e3d2a/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:56:27,197 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68653f16-dd8d-4e1b-b9a5-ba98d87e3d2a/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:56:27,203 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68653f16-dd8d-4e1b-b9a5-ba98d87e3d2a/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-11-07 01:56:27,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:56:27,359 INFO L263 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 13 conjunts are in the unsatisfiable core [2021-11-07 01:56:27,361 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:56:27,533 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 01:56:27,533 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:56:27,691 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 8 treesize of output 6 [2021-11-07 01:56:27,950 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 01:56:27,950 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:56:27,950 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [5776158] [2021-11-07 01:56:27,950 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [5776158] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:56:27,950 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:56:27,950 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 13 [2021-11-07 01:56:27,951 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2065622790] [2021-11-07 01:56:27,951 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-11-07 01:56:27,951 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:56:27,952 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-11-07 01:56:27,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2021-11-07 01:56:27,952 INFO L87 Difference]: Start difference. First operand 102 states and 106 transitions. Second operand has 14 states, 13 states have (on average 2.0) internal successors, (26), 14 states have internal predecessors, (26), 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 01:56:30,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:56:30,290 INFO L93 Difference]: Finished difference Result 116 states and 120 transitions. [2021-11-07 01:56:30,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-11-07 01:56:30,292 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.0) internal successors, (26), 14 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2021-11-07 01:56:30,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:56:30,294 INFO L225 Difference]: With dead ends: 116 [2021-11-07 01:56:30,294 INFO L226 Difference]: Without dead ends: 116 [2021-11-07 01:56:30,295 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 98 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=196, Invalid=506, Unknown=0, NotChecked=0, Total=702 [2021-11-07 01:56:30,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2021-11-07 01:56:30,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 99. [2021-11-07 01:56:30,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 62 states have (on average 1.6612903225806452) internal successors, (103), 98 states have internal predecessors, (103), 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 01:56:30,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 103 transitions. [2021-11-07 01:56:30,302 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 103 transitions. Word has length 14 [2021-11-07 01:56:30,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:56:30,303 INFO L470 AbstractCegarLoop]: Abstraction has 99 states and 103 transitions. [2021-11-07 01:56:30,303 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.0) internal successors, (26), 14 states have internal predecessors, (26), 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 01:56:30,303 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 103 transitions. [2021-11-07 01:56:30,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-11-07 01:56:30,304 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:56:30,304 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:56:30,322 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68653f16-dd8d-4e1b-b9a5-ba98d87e3d2a/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-11-07 01:56:30,516 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68653f16-dd8d-4e1b-b9a5-ba98d87e3d2a/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:56:30,516 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr10REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 53 more)] === [2021-11-07 01:56:30,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:56:30,517 INFO L85 PathProgramCache]: Analyzing trace with hash -1465235593, now seen corresponding path program 1 times [2021-11-07 01:56:30,517 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:56:30,517 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1566696123] [2021-11-07 01:56:30,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:56:30,517 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:56:30,517 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68653f16-dd8d-4e1b-b9a5-ba98d87e3d2a/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:56:30,518 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68653f16-dd8d-4e1b-b9a5-ba98d87e3d2a/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:56:30,519 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68653f16-dd8d-4e1b-b9a5-ba98d87e3d2a/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-11-07 01:56:30,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:56:30,651 INFO L263 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-07 01:56:30,653 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:56:30,674 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 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-07 01:56:30,736 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 01:56:30,736 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:56:30,795 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 01:56:30,795 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:56:30,795 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1566696123] [2021-11-07 01:56:30,795 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1566696123] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:56:30,796 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:56:30,796 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-07 01:56:30,796 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [486483384] [2021-11-07 01:56:30,796 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 01:56:30,796 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:56:30,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 01:56:30,797 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-07 01:56:30,797 INFO L87 Difference]: Start difference. First operand 99 states and 103 transitions. Second operand has 5 states, 4 states have (on average 3.75) internal successors, (15), 5 states have internal predecessors, (15), 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 01:56:31,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:56:31,206 INFO L93 Difference]: Finished difference Result 136 states and 142 transitions. [2021-11-07 01:56:31,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-07 01:56:31,206 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 5 states have internal predecessors, (15), 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 15 [2021-11-07 01:56:31,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:56:31,208 INFO L225 Difference]: With dead ends: 136 [2021-11-07 01:56:31,208 INFO L226 Difference]: Without dead ends: 136 [2021-11-07 01:56:31,208 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 24 SyntacticMatches, 2 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-07 01:56:31,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2021-11-07 01:56:31,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 94. [2021-11-07 01:56:31,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 62 states have (on average 1.5806451612903225) internal successors, (98), 93 states have internal predecessors, (98), 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 01:56:31,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 98 transitions. [2021-11-07 01:56:31,212 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 98 transitions. Word has length 15 [2021-11-07 01:56:31,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:56:31,212 INFO L470 AbstractCegarLoop]: Abstraction has 94 states and 98 transitions. [2021-11-07 01:56:31,213 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 5 states have internal predecessors, (15), 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 01:56:31,213 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 98 transitions. [2021-11-07 01:56:31,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-11-07 01:56:31,213 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:56:31,213 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:56:31,240 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68653f16-dd8d-4e1b-b9a5-ba98d87e3d2a/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-11-07 01:56:31,425 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68653f16-dd8d-4e1b-b9a5-ba98d87e3d2a/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:56:31,425 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr11REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 53 more)] === [2021-11-07 01:56:31,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:56:31,426 INFO L85 PathProgramCache]: Analyzing trace with hash -1465235592, now seen corresponding path program 1 times [2021-11-07 01:56:31,426 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:56:31,426 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1432969815] [2021-11-07 01:56:31,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:56:31,426 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:56:31,426 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68653f16-dd8d-4e1b-b9a5-ba98d87e3d2a/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:56:31,427 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68653f16-dd8d-4e1b-b9a5-ba98d87e3d2a/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:56:31,428 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68653f16-dd8d-4e1b-b9a5-ba98d87e3d2a/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-11-07 01:56:31,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:56:31,580 INFO L263 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-07 01:56:31,581 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:56:31,607 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 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-07 01:56:31,726 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 01:56:31,726 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:56:31,980 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 01:56:31,981 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:56:31,981 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1432969815] [2021-11-07 01:56:31,981 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1432969815] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:56:31,981 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:56:31,981 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 7 [2021-11-07 01:56:31,981 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [690604919] [2021-11-07 01:56:31,982 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-07 01:56:31,982 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:56:31,982 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-07 01:56:31,982 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-07 01:56:31,983 INFO L87 Difference]: Start difference. First operand 94 states and 98 transitions. Second operand has 8 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 8 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:56:32,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:56:32,816 INFO L93 Difference]: Finished difference Result 102 states and 106 transitions. [2021-11-07 01:56:32,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-07 01:56:32,817 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 8 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2021-11-07 01:56:32,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:56:32,817 INFO L225 Difference]: With dead ends: 102 [2021-11-07 01:56:32,817 INFO L226 Difference]: Without dead ends: 102 [2021-11-07 01:56:32,818 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2021-11-07 01:56:32,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2021-11-07 01:56:32,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 90. [2021-11-07 01:56:32,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 62 states have (on average 1.5161290322580645) internal successors, (94), 89 states have internal predecessors, (94), 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 01:56:32,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 94 transitions. [2021-11-07 01:56:32,821 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 94 transitions. Word has length 15 [2021-11-07 01:56:32,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:56:32,821 INFO L470 AbstractCegarLoop]: Abstraction has 90 states and 94 transitions. [2021-11-07 01:56:32,821 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 8 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:56:32,821 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 94 transitions. [2021-11-07 01:56:32,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-11-07 01:56:32,822 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:56:32,822 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:56:32,831 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68653f16-dd8d-4e1b-b9a5-ba98d87e3d2a/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2021-11-07 01:56:33,028 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68653f16-dd8d-4e1b-b9a5-ba98d87e3d2a/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:56:33,028 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr14REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 53 more)] === [2021-11-07 01:56:33,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:56:33,028 INFO L85 PathProgramCache]: Analyzing trace with hash 657868666, now seen corresponding path program 1 times [2021-11-07 01:56:33,029 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:56:33,029 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [972751746] [2021-11-07 01:56:33,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:56:33,029 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:56:33,030 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68653f16-dd8d-4e1b-b9a5-ba98d87e3d2a/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:56:33,030 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68653f16-dd8d-4e1b-b9a5-ba98d87e3d2a/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:56:33,081 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68653f16-dd8d-4e1b-b9a5-ba98d87e3d2a/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2021-11-07 01:56:33,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:56:33,293 INFO L263 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 22 conjunts are in the unsatisfiable core [2021-11-07 01:56:33,295 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:56:33,306 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 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-07 01:56:33,340 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-07 01:56:33,410 INFO L354 Elim1Store]: treesize reduction 23, result has 28.1 percent of original size [2021-11-07 01:56:33,411 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 20 [2021-11-07 01:56:33,484 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-07 01:56:33,485 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 16 treesize of output 16 [2021-11-07 01:56:33,705 INFO L354 Elim1Store]: treesize reduction 562, result has 2.9 percent of original size [2021-11-07 01:56:33,706 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 6 case distinctions, treesize of input 69 treesize of output 27 [2021-11-07 01:56:33,802 INFO L354 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2021-11-07 01:56:33,802 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 10 [2021-11-07 01:56:33,887 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 01:56:33,887 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:56:33,965 INFO L354 Elim1Store]: treesize reduction 5, result has 64.3 percent of original size [2021-11-07 01:56:33,965 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 24 treesize of output 23 [2021-11-07 01:56:34,070 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:56:34,072 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 115 [2021-11-07 01:56:38,454 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ULTIMATE.start_insert_sub_~sub~0.base_24 (_ BitVec 32)) (v_DerPreprocessor_4 (_ BitVec 32)) (v_DerPreprocessor_3 (_ BitVec 32)) (v_DerPreprocessor_2 (_ BitVec 32)) (ULTIMATE.start_insert_sub_~sub~0.offset (_ BitVec 32)) (v_DerPreprocessor_1 (_ BitVec 32))) (or (= (select (select (store |c_#memory_$Pointer$.base| v_ULTIMATE.start_insert_sub_~sub~0.base_24 (store (store (store (store (select |c_#memory_$Pointer$.base| v_ULTIMATE.start_insert_sub_~sub~0.base_24) ULTIMATE.start_insert_sub_~sub~0.offset v_DerPreprocessor_1) (bvadd ULTIMATE.start_insert_sub_~sub~0.offset (_ bv1 32)) v_DerPreprocessor_2) (bvadd (_ bv2 32) ULTIMATE.start_insert_sub_~sub~0.offset) v_DerPreprocessor_3) (bvadd (_ bv3 32) ULTIMATE.start_insert_sub_~sub~0.offset) v_DerPreprocessor_4)) c_ULTIMATE.start_create_sub_list_~sub.base) (bvadd c_ULTIMATE.start_create_sub_list_~sub.offset (_ bv4 32))) c_ULTIMATE.start_create_sub_list_~sub.base) (not (= (_ bv0 1) (bvneg (select |c_#valid| v_ULTIMATE.start_insert_sub_~sub~0.base_24)))))) is different from false [2021-11-07 01:56:40,533 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ULTIMATE.start_insert_sub_~sub~0.base_24 (_ BitVec 32)) (v_DerPreprocessor_4 (_ BitVec 32)) (v_DerPreprocessor_3 (_ BitVec 32)) (v_DerPreprocessor_2 (_ BitVec 32)) (ULTIMATE.start_insert_sub_~sub~0.offset (_ BitVec 32)) (v_DerPreprocessor_1 (_ BitVec 32))) (or (= (select (select (let ((.cse0 (store |c_#memory_$Pointer$.base| c_ULTIMATE.start_create_sub_list_~sub.base (store (select |c_#memory_$Pointer$.base| c_ULTIMATE.start_create_sub_list_~sub.base) c_ULTIMATE.start_create_sub_list_~sub.offset c_ULTIMATE.start_create_sub_list_~sub.base)))) (store .cse0 v_ULTIMATE.start_insert_sub_~sub~0.base_24 (store (store (store (store (select .cse0 v_ULTIMATE.start_insert_sub_~sub~0.base_24) ULTIMATE.start_insert_sub_~sub~0.offset v_DerPreprocessor_1) (bvadd ULTIMATE.start_insert_sub_~sub~0.offset (_ bv1 32)) v_DerPreprocessor_2) (bvadd (_ bv2 32) ULTIMATE.start_insert_sub_~sub~0.offset) v_DerPreprocessor_3) (bvadd (_ bv3 32) ULTIMATE.start_insert_sub_~sub~0.offset) v_DerPreprocessor_4))) c_ULTIMATE.start_create_sub_list_~sub.base) (bvadd c_ULTIMATE.start_create_sub_list_~sub.offset (_ bv4 32))) c_ULTIMATE.start_create_sub_list_~sub.base) (not (= (_ bv0 1) (bvneg (select |c_#valid| v_ULTIMATE.start_insert_sub_~sub~0.base_24)))))) is different from false [2021-11-07 01:56:43,843 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:56:43,843 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [972751746] [2021-11-07 01:56:43,843 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: BigInteger out of long range [2021-11-07 01:56:43,844 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1036966600] [2021-11-07 01:56:43,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:56:43,844 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-07 01:56:43,844 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68653f16-dd8d-4e1b-b9a5-ba98d87e3d2a/bin/utaipan-UUZaoUuFF8/cvc4 [2021-11-07 01:56:43,855 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68653f16-dd8d-4e1b-b9a5-ba98d87e3d2a/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-07 01:56:43,872 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68653f16-dd8d-4e1b-b9a5-ba98d87e3d2a/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (14)] Waiting until timeout for monitored process [2021-11-07 01:56:44,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:56:44,167 INFO L263 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 24 conjunts are in the unsatisfiable core [2021-11-07 01:56:44,169 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:56:44,191 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 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-07 01:56:44,304 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-07 01:56:44,402 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:56:44,403 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-11-07 01:56:44,506 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-07 01:56:44,506 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 01:56:44,737 INFO L354 Elim1Store]: treesize reduction 516, result has 2.8 percent of original size [2021-11-07 01:56:44,738 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 2 new quantified variables, introduced 6 case distinctions, treesize of input 67 treesize of output 25 [2021-11-07 01:56:44,892 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:56:44,893 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 1 case distinctions, treesize of input 30 treesize of output 18 [2021-11-07 01:56:44,915 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 01:56:44,915 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:56:44,995 INFO L354 Elim1Store]: treesize reduction 5, result has 64.3 percent of original size [2021-11-07 01:56:44,995 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 27 treesize of output 26 [2021-11-07 01:56:45,020 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:56:45,021 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 115 [2021-11-07 01:56:54,068 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ULTIMATE.start_insert_sub_~sub~0.base_25 (_ BitVec 32)) (v_DerPreprocessor_4 (_ BitVec 32)) (v_DerPreprocessor_3 (_ BitVec 32)) (v_DerPreprocessor_2 (_ BitVec 32)) (ULTIMATE.start_insert_sub_~sub~0.offset (_ BitVec 32)) (v_DerPreprocessor_1 (_ BitVec 32))) (or (not (= (_ bv0 1) (bvneg (bvneg (select |c_#valid| v_ULTIMATE.start_insert_sub_~sub~0.base_25))))) (= (select (select (store |c_#memory_$Pointer$.base| v_ULTIMATE.start_insert_sub_~sub~0.base_25 (store (store (store (store (select |c_#memory_$Pointer$.base| v_ULTIMATE.start_insert_sub_~sub~0.base_25) ULTIMATE.start_insert_sub_~sub~0.offset v_DerPreprocessor_1) (bvadd ULTIMATE.start_insert_sub_~sub~0.offset (_ bv1 32)) v_DerPreprocessor_2) (bvadd (_ bv2 32) ULTIMATE.start_insert_sub_~sub~0.offset) v_DerPreprocessor_3) (bvadd (_ bv3 32) ULTIMATE.start_insert_sub_~sub~0.offset) v_DerPreprocessor_4)) c_ULTIMATE.start_create_sub_list_~sub.base) (bvadd c_ULTIMATE.start_create_sub_list_~sub.offset (_ bv4 32))) c_ULTIMATE.start_create_sub_list_~sub.base))) is different from false [2021-11-07 01:56:56,143 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ULTIMATE.start_insert_sub_~sub~0.base_25 (_ BitVec 32)) (v_DerPreprocessor_4 (_ BitVec 32)) (v_DerPreprocessor_3 (_ BitVec 32)) (v_DerPreprocessor_2 (_ BitVec 32)) (ULTIMATE.start_insert_sub_~sub~0.offset (_ BitVec 32)) (v_DerPreprocessor_1 (_ BitVec 32))) (or (= (select (select (let ((.cse0 (store |c_#memory_$Pointer$.base| c_ULTIMATE.start_create_sub_list_~sub.base (store (select |c_#memory_$Pointer$.base| c_ULTIMATE.start_create_sub_list_~sub.base) c_ULTIMATE.start_create_sub_list_~sub.offset c_ULTIMATE.start_create_sub_list_~sub.base)))) (store .cse0 v_ULTIMATE.start_insert_sub_~sub~0.base_25 (store (store (store (store (select .cse0 v_ULTIMATE.start_insert_sub_~sub~0.base_25) ULTIMATE.start_insert_sub_~sub~0.offset v_DerPreprocessor_1) (bvadd ULTIMATE.start_insert_sub_~sub~0.offset (_ bv1 32)) v_DerPreprocessor_2) (bvadd (_ bv2 32) ULTIMATE.start_insert_sub_~sub~0.offset) v_DerPreprocessor_3) (bvadd (_ bv3 32) ULTIMATE.start_insert_sub_~sub~0.offset) v_DerPreprocessor_4))) c_ULTIMATE.start_create_sub_list_~sub.base) (bvadd c_ULTIMATE.start_create_sub_list_~sub.offset (_ bv4 32))) c_ULTIMATE.start_create_sub_list_~sub.base) (not (= (_ bv0 1) (bvneg (bvneg (select |c_#valid| v_ULTIMATE.start_insert_sub_~sub~0.base_25))))))) is different from false [2021-11-07 01:56:56,268 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 01:56:56,269 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1036966600] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:56:56,269 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:56:56,269 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10, 8] imperfect sequences [] total 15 [2021-11-07 01:56:56,269 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1059490704] [2021-11-07 01:56:56,270 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2021-11-07 01:56:56,270 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:56:56,270 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-11-07 01:56:56,271 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=396, Unknown=4, NotChecked=172, Total=650 [2021-11-07 01:56:56,271 INFO L87 Difference]: Start difference. First operand 90 states and 94 transitions. Second operand has 16 states, 15 states have (on average 1.8) internal successors, (27), 16 states have internal predecessors, (27), 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 01:56:58,432 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_ULTIMATE.start_insert_sub_~sub~0.base_25 (_ BitVec 32)) (v_DerPreprocessor_4 (_ BitVec 32)) (v_DerPreprocessor_3 (_ BitVec 32)) (v_DerPreprocessor_2 (_ BitVec 32)) (ULTIMATE.start_insert_sub_~sub~0.offset (_ BitVec 32)) (v_DerPreprocessor_1 (_ BitVec 32))) (or (= (select (select (let ((.cse0 (store |c_#memory_$Pointer$.base| c_ULTIMATE.start_create_sub_list_~sub.base (store (select |c_#memory_$Pointer$.base| c_ULTIMATE.start_create_sub_list_~sub.base) c_ULTIMATE.start_create_sub_list_~sub.offset c_ULTIMATE.start_create_sub_list_~sub.base)))) (store .cse0 v_ULTIMATE.start_insert_sub_~sub~0.base_25 (store (store (store (store (select .cse0 v_ULTIMATE.start_insert_sub_~sub~0.base_25) ULTIMATE.start_insert_sub_~sub~0.offset v_DerPreprocessor_1) (bvadd ULTIMATE.start_insert_sub_~sub~0.offset (_ bv1 32)) v_DerPreprocessor_2) (bvadd (_ bv2 32) ULTIMATE.start_insert_sub_~sub~0.offset) v_DerPreprocessor_3) (bvadd (_ bv3 32) ULTIMATE.start_insert_sub_~sub~0.offset) v_DerPreprocessor_4))) c_ULTIMATE.start_create_sub_list_~sub.base) (bvadd c_ULTIMATE.start_create_sub_list_~sub.offset (_ bv4 32))) c_ULTIMATE.start_create_sub_list_~sub.base) (not (= (_ bv0 1) (bvneg (bvneg (select |c_#valid| v_ULTIMATE.start_insert_sub_~sub~0.base_25))))))) (= (_ bv0 1) (bvadd (_ bv1 1) (bvneg (select |c_#valid| c_ULTIMATE.start_insert_top_~top~0.base)))) (= (select (select |c_#memory_$Pointer$.base| c_ULTIMATE.start_create_sub_list_~sub.base) (bvadd c_ULTIMATE.start_create_sub_list_~sub.offset (_ bv4 32))) c_ULTIMATE.start_create_sub_list_~sub.base) (= c_ULTIMATE.start_insert_top_~top~0.offset (_ bv0 32)) (= (_ bv0 1) (bvadd (_ bv1 1) (bvneg (bvneg (select |c_#valid| c_ULTIMATE.start_create_sub_list_~sub.base))))) (= c_ULTIMATE.start_create_sub_list_~sub.offset (_ bv8 32))) is different from false [2021-11-07 01:57:24,027 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_ULTIMATE.start_insert_sub_~sub~0.base_25 (_ BitVec 32)) (v_DerPreprocessor_4 (_ BitVec 32)) (v_DerPreprocessor_3 (_ BitVec 32)) (v_DerPreprocessor_2 (_ BitVec 32)) (ULTIMATE.start_insert_sub_~sub~0.offset (_ BitVec 32)) (v_DerPreprocessor_1 (_ BitVec 32))) (or (= (select (select (let ((.cse0 (store |c_#memory_$Pointer$.base| c_ULTIMATE.start_create_sub_list_~sub.base (store (select |c_#memory_$Pointer$.base| c_ULTIMATE.start_create_sub_list_~sub.base) c_ULTIMATE.start_create_sub_list_~sub.offset c_ULTIMATE.start_create_sub_list_~sub.base)))) (store .cse0 v_ULTIMATE.start_insert_sub_~sub~0.base_25 (store (store (store (store (select .cse0 v_ULTIMATE.start_insert_sub_~sub~0.base_25) ULTIMATE.start_insert_sub_~sub~0.offset v_DerPreprocessor_1) (bvadd ULTIMATE.start_insert_sub_~sub~0.offset (_ bv1 32)) v_DerPreprocessor_2) (bvadd (_ bv2 32) ULTIMATE.start_insert_sub_~sub~0.offset) v_DerPreprocessor_3) (bvadd (_ bv3 32) ULTIMATE.start_insert_sub_~sub~0.offset) v_DerPreprocessor_4))) c_ULTIMATE.start_create_sub_list_~sub.base) (bvadd c_ULTIMATE.start_create_sub_list_~sub.offset (_ bv4 32))) c_ULTIMATE.start_create_sub_list_~sub.base) (not (= (_ bv0 1) (bvneg (bvneg (select |c_#valid| v_ULTIMATE.start_insert_sub_~sub~0.base_25))))))) (= (_ bv0 1) (bvadd (_ bv1 1) (bvneg (select |c_#valid| c_ULTIMATE.start_insert_top_~top~0.base)))) (= (select (select |c_#memory_$Pointer$.base| c_ULTIMATE.start_create_sub_list_~sub.base) (bvadd c_ULTIMATE.start_create_sub_list_~sub.offset (_ bv4 32))) c_ULTIMATE.start_create_sub_list_~sub.base) (= c_ULTIMATE.start_insert_top_~top~0.offset (_ bv0 32)) (= (_ bv0 1) (bvadd (_ bv1 1) (bvneg (bvneg (select |c_#valid| c_ULTIMATE.start_create_sub_list_~sub.base))))) (= c_ULTIMATE.start_create_sub_list_~sub.offset (_ bv8 32)) (= (_ bv0 1) (bvadd (bvneg (select |c_#valid| c_ULTIMATE.start___list_add_~prev.base)) (_ bv1 1)))) is different from false [2021-11-07 01:57:24,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:57:24,265 INFO L93 Difference]: Finished difference Result 134 states and 140 transitions. [2021-11-07 01:57:24,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-11-07 01:57:24,266 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 1.8) internal successors, (27), 16 states have internal predecessors, (27), 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 17 [2021-11-07 01:57:24,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:57:24,267 INFO L225 Difference]: With dead ends: 134 [2021-11-07 01:57:24,267 INFO L226 Difference]: Without dead ends: 134 [2021-11-07 01:57:24,268 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 33 SyntacticMatches, 3 SemanticMatches, 36 ConstructedPredicates, 6 IntricatePredicates, 0 DeprecatedPredicates, 222 ImplicationChecksByTransitivity, 44.5s TimeCoverageRelationStatistics Valid=190, Invalid=820, Unknown=6, NotChecked=390, Total=1406 [2021-11-07 01:57:24,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2021-11-07 01:57:24,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 100. [2021-11-07 01:57:24,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 72 states have (on average 1.4583333333333333) internal successors, (105), 99 states have internal predecessors, (105), 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 01:57:24,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 105 transitions. [2021-11-07 01:57:24,272 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 105 transitions. Word has length 17 [2021-11-07 01:57:24,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:57:24,272 INFO L470 AbstractCegarLoop]: Abstraction has 100 states and 105 transitions. [2021-11-07 01:57:24,272 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 1.8) internal successors, (27), 16 states have internal predecessors, (27), 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 01:57:24,272 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 105 transitions. [2021-11-07 01:57:24,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-11-07 01:57:24,273 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:57:24,273 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:57:24,287 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68653f16-dd8d-4e1b-b9a5-ba98d87e3d2a/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (14)] Forceful destruction successful, exit code 0 [2021-11-07 01:57:24,483 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68653f16-dd8d-4e1b-b9a5-ba98d87e3d2a/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2021-11-07 01:57:24,676 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68653f16-dd8d-4e1b-b9a5-ba98d87e3d2a/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68653f16-dd8d-4e1b-b9a5-ba98d87e3d2a/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:57:24,676 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr15REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 53 more)] === [2021-11-07 01:57:24,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:57:24,676 INFO L85 PathProgramCache]: Analyzing trace with hash 657868667, now seen corresponding path program 1 times [2021-11-07 01:57:24,677 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:57:24,677 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1077882698] [2021-11-07 01:57:24,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:57:24,677 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:57:24,677 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68653f16-dd8d-4e1b-b9a5-ba98d87e3d2a/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:57:24,678 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68653f16-dd8d-4e1b-b9a5-ba98d87e3d2a/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:57:24,690 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68653f16-dd8d-4e1b-b9a5-ba98d87e3d2a/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2021-11-07 01:57:24,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:57:24,986 INFO L263 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 32 conjunts are in the unsatisfiable core [2021-11-07 01:57:24,988 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:57:25,008 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 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-07 01:57:25,019 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 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-07 01:57:25,119 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-07 01:57:25,136 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-07 01:57:25,203 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:57:25,204 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-11-07 01:57:25,228 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:57:25,229 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-11-07 01:57:25,338 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-07 01:57:25,338 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 01:57:25,372 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 14 [2021-11-07 01:57:25,770 INFO L354 Elim1Store]: treesize reduction 516, result has 2.8 percent of original size [2021-11-07 01:57:25,770 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 2 new quantified variables, introduced 5 case distinctions, treesize of input 130 treesize of output 88 [2021-11-07 01:57:25,937 INFO L354 Elim1Store]: treesize reduction 516, result has 2.8 percent of original size [2021-11-07 01:57:25,938 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 2 new quantified variables, introduced 5 case distinctions, treesize of input 82 treesize of output 40 [2021-11-07 01:57:26,133 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 22 treesize of output 10 [2021-11-07 01:57:26,146 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 22 treesize of output 10 [2021-11-07 01:57:26,330 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 01:57:26,330 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:57:26,823 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:57:26,826 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 192 [2021-11-07 01:57:26,835 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:57:26,837 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 294 [2021-11-07 01:57:29,391 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_DerPreprocessor_10 (_ BitVec 32)) (ULTIMATE.start_insert_sub_~sub~0.offset (_ BitVec 32)) (v_DerPreprocessor_13 (_ BitVec 32)) (v_DerPreprocessor_14 (_ BitVec 32)) (v_DerPreprocessor_11 (_ BitVec 32)) (v_DerPreprocessor_12 (_ BitVec 32)) (v_DerPreprocessor_9 (_ BitVec 32)) (v_DerPreprocessor_15 (_ BitVec 32)) (v_DerPreprocessor_16 (_ BitVec 32))) (let ((.cse0 (bvadd ULTIMATE.start_insert_sub_~sub~0.offset (_ bv1 32))) (.cse1 (bvadd (_ bv2 32) ULTIMATE.start_insert_sub_~sub~0.offset)) (.cse2 (bvadd (_ bv3 32) ULTIMATE.start_insert_sub_~sub~0.offset)) (.cse3 (bvadd (_ bv4 32) c_ULTIMATE.start_insert_sub_~head.offset))) (bvule (bvadd (_ bv4 32) (select (select (store |c_#memory_$Pointer$.offset| c_ULTIMATE.start_insert_sub_~sub~0.base (store (store (store (store (select |c_#memory_$Pointer$.offset| c_ULTIMATE.start_insert_sub_~sub~0.base) ULTIMATE.start_insert_sub_~sub~0.offset v_DerPreprocessor_13) .cse0 v_DerPreprocessor_14) .cse1 v_DerPreprocessor_15) .cse2 v_DerPreprocessor_16)) c_ULTIMATE.start_insert_sub_~head.base) .cse3)) (select |c_#length| (select (select (store |c_#memory_$Pointer$.base| c_ULTIMATE.start_insert_sub_~sub~0.base (store (store (store (store (select |c_#memory_$Pointer$.base| c_ULTIMATE.start_insert_sub_~sub~0.base) ULTIMATE.start_insert_sub_~sub~0.offset v_DerPreprocessor_9) .cse0 v_DerPreprocessor_10) .cse1 v_DerPreprocessor_11) .cse2 v_DerPreprocessor_12)) c_ULTIMATE.start_insert_sub_~head.base) .cse3))))) (forall ((ULTIMATE.start_insert_sub_~sub~0.offset (_ BitVec 32)) (v_DerPreprocessor_13 (_ BitVec 32)) (v_DerPreprocessor_14 (_ BitVec 32)) (v_DerPreprocessor_15 (_ BitVec 32)) (v_DerPreprocessor_16 (_ BitVec 32))) (let ((.cse4 (select (select (store |c_#memory_$Pointer$.offset| c_ULTIMATE.start_insert_sub_~sub~0.base (store (store (store (store (select |c_#memory_$Pointer$.offset| c_ULTIMATE.start_insert_sub_~sub~0.base) ULTIMATE.start_insert_sub_~sub~0.offset v_DerPreprocessor_13) (bvadd ULTIMATE.start_insert_sub_~sub~0.offset (_ bv1 32)) v_DerPreprocessor_14) (bvadd (_ bv2 32) ULTIMATE.start_insert_sub_~sub~0.offset) v_DerPreprocessor_15) (bvadd (_ bv3 32) ULTIMATE.start_insert_sub_~sub~0.offset) v_DerPreprocessor_16)) c_ULTIMATE.start_insert_sub_~head.base) (bvadd (_ bv4 32) c_ULTIMATE.start_insert_sub_~head.offset)))) (bvule .cse4 (bvadd (_ bv4 32) .cse4))))) is different from false [2021-11-07 01:57:46,648 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ULTIMATE.start_insert_sub_~sub~0.base_26 (_ BitVec 32))) (or (and (forall ((ULTIMATE.start_insert_sub_~sub~0.offset (_ BitVec 32)) (v_DerPreprocessor_13 (_ BitVec 32)) (v_DerPreprocessor_14 (_ BitVec 32)) (v_DerPreprocessor_15 (_ BitVec 32)) (v_DerPreprocessor_16 (_ BitVec 32))) (let ((.cse0 (select (select (let ((.cse1 (store |c_#memory_$Pointer$.offset| c_ULTIMATE.start_create_sub_list_~sub.base (store (select |c_#memory_$Pointer$.offset| c_ULTIMATE.start_create_sub_list_~sub.base) c_ULTIMATE.start_create_sub_list_~sub.offset c_ULTIMATE.start_create_sub_list_~sub.offset)))) (store .cse1 v_ULTIMATE.start_insert_sub_~sub~0.base_26 (store (store (store (store (select .cse1 v_ULTIMATE.start_insert_sub_~sub~0.base_26) ULTIMATE.start_insert_sub_~sub~0.offset v_DerPreprocessor_13) (bvadd ULTIMATE.start_insert_sub_~sub~0.offset (_ bv1 32)) v_DerPreprocessor_14) (bvadd (_ bv2 32) ULTIMATE.start_insert_sub_~sub~0.offset) v_DerPreprocessor_15) (bvadd (_ bv3 32) ULTIMATE.start_insert_sub_~sub~0.offset) v_DerPreprocessor_16))) c_ULTIMATE.start_create_sub_list_~sub.base) (bvadd c_ULTIMATE.start_create_sub_list_~sub.offset (_ bv4 32))))) (bvule .cse0 (bvadd (_ bv4 32) .cse0)))) (forall ((v_DerPreprocessor_10 (_ BitVec 32)) (ULTIMATE.start_insert_sub_~sub~0.offset (_ BitVec 32)) (v_DerPreprocessor_13 (_ BitVec 32)) (v_DerPreprocessor_14 (_ BitVec 32)) (v_DerPreprocessor_11 (_ BitVec 32)) (v_DerPreprocessor_12 (_ BitVec 32)) (v_DerPreprocessor_9 (_ BitVec 32)) (v_DerPreprocessor_15 (_ BitVec 32)) (v_DerPreprocessor_16 (_ BitVec 32))) (let ((.cse3 (bvadd ULTIMATE.start_insert_sub_~sub~0.offset (_ bv1 32))) (.cse4 (bvadd (_ bv2 32) ULTIMATE.start_insert_sub_~sub~0.offset)) (.cse5 (bvadd (_ bv3 32) ULTIMATE.start_insert_sub_~sub~0.offset)) (.cse6 (bvadd c_ULTIMATE.start_create_sub_list_~sub.offset (_ bv4 32)))) (bvule (bvadd (_ bv4 32) (select (select (let ((.cse2 (store |c_#memory_$Pointer$.offset| c_ULTIMATE.start_create_sub_list_~sub.base (store (select |c_#memory_$Pointer$.offset| c_ULTIMATE.start_create_sub_list_~sub.base) c_ULTIMATE.start_create_sub_list_~sub.offset c_ULTIMATE.start_create_sub_list_~sub.offset)))) (store .cse2 v_ULTIMATE.start_insert_sub_~sub~0.base_26 (store (store (store (store (select .cse2 v_ULTIMATE.start_insert_sub_~sub~0.base_26) ULTIMATE.start_insert_sub_~sub~0.offset v_DerPreprocessor_13) .cse3 v_DerPreprocessor_14) .cse4 v_DerPreprocessor_15) .cse5 v_DerPreprocessor_16))) c_ULTIMATE.start_create_sub_list_~sub.base) .cse6)) (select (store |c_#length| v_ULTIMATE.start_insert_sub_~sub~0.base_26 (_ bv12 32)) (select (select (let ((.cse7 (store |c_#memory_$Pointer$.base| c_ULTIMATE.start_create_sub_list_~sub.base (store (select |c_#memory_$Pointer$.base| c_ULTIMATE.start_create_sub_list_~sub.base) c_ULTIMATE.start_create_sub_list_~sub.offset c_ULTIMATE.start_create_sub_list_~sub.base)))) (store .cse7 v_ULTIMATE.start_insert_sub_~sub~0.base_26 (store (store (store (store (select .cse7 v_ULTIMATE.start_insert_sub_~sub~0.base_26) ULTIMATE.start_insert_sub_~sub~0.offset v_DerPreprocessor_9) .cse3 v_DerPreprocessor_10) .cse4 v_DerPreprocessor_11) .cse5 v_DerPreprocessor_12))) c_ULTIMATE.start_create_sub_list_~sub.base) .cse6)))))) (not (= (_ bv0 1) (bvneg (select |c_#valid| v_ULTIMATE.start_insert_sub_~sub~0.base_26)))))) is different from false [2021-11-07 01:59:15,137 WARN L207 SmtUtils]: Spent 1.46 m on a formula simplification that was a NOOP. DAG size: 1805 [2021-11-07 01:59:15,814 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:59:15,814 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1077882698] [2021-11-07 01:59:15,815 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: BigInteger out of long range [2021-11-07 01:59:15,815 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1901411632] [2021-11-07 01:59:15,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:59:15,815 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-07 01:59:15,815 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68653f16-dd8d-4e1b-b9a5-ba98d87e3d2a/bin/utaipan-UUZaoUuFF8/cvc4 [2021-11-07 01:59:15,821 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68653f16-dd8d-4e1b-b9a5-ba98d87e3d2a/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-07 01:59:15,843 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68653f16-dd8d-4e1b-b9a5-ba98d87e3d2a/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (16)] Waiting until timeout for monitored process [2021-11-07 01:59:16,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:59:16,348 INFO L263 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 32 conjunts are in the unsatisfiable core [2021-11-07 01:59:16,351 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:59:16,367 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 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-07 01:59:16,375 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 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-07 01:59:16,448 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-07 01:59:16,459 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-07 01:59:16,491 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:59:16,492 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-11-07 01:59:16,516 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:59:16,517 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-11-07 01:59:16,581 INFO L354 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2021-11-07 01:59:16,582 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 18 [2021-11-07 01:59:16,627 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-07 01:59:16,627 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 21 treesize of output 21 [2021-11-07 01:59:17,001 INFO L354 Elim1Store]: treesize reduction 516, result has 2.8 percent of original size [2021-11-07 01:59:17,001 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 2 new quantified variables, introduced 5 case distinctions, treesize of input 130 treesize of output 88 [2021-11-07 01:59:17,118 INFO L354 Elim1Store]: treesize reduction 516, result has 2.8 percent of original size [2021-11-07 01:59:17,118 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 2 new quantified variables, introduced 5 case distinctions, treesize of input 82 treesize of output 40 [2021-11-07 01:59:17,231 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 22 treesize of output 10 [2021-11-07 01:59:17,244 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 22 treesize of output 10 [2021-11-07 01:59:17,330 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 01:59:17,330 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:59:17,474 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:59:17,476 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 192 [2021-11-07 01:59:17,479 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:59:17,485 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 294 [2021-11-07 01:59:39,645 WARN L207 SmtUtils]: Spent 6.56 s on a formula simplification that was a NOOP. DAG size: 46 [2021-11-07 01:59:59,249 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ULTIMATE.start_insert_sub_~sub~0.base_27 (_ BitVec 32))) (or (and (forall ((v_DerPreprocessor_19 (_ BitVec 32)) (v_DerPreprocessor_20 (_ BitVec 32)) (v_DerPreprocessor_21 (_ BitVec 32)) (ULTIMATE.start_insert_sub_~sub~0.offset (_ BitVec 32)) (v_DerPreprocessor_24 (_ BitVec 32)) (v_DerPreprocessor_22 (_ BitVec 32)) (v_DerPreprocessor_23 (_ BitVec 32)) (v_DerPreprocessor_17 (_ BitVec 32)) (v_DerPreprocessor_18 (_ BitVec 32))) (let ((.cse1 (bvadd ULTIMATE.start_insert_sub_~sub~0.offset (_ bv1 32))) (.cse2 (bvadd (_ bv2 32) ULTIMATE.start_insert_sub_~sub~0.offset)) (.cse3 (bvadd (_ bv3 32) ULTIMATE.start_insert_sub_~sub~0.offset)) (.cse4 (bvadd c_ULTIMATE.start_create_sub_list_~sub.offset (_ bv4 32)))) (bvule (bvadd (_ bv4 32) (select (select (let ((.cse0 (store |c_#memory_$Pointer$.offset| c_ULTIMATE.start_create_sub_list_~sub.base (store (select |c_#memory_$Pointer$.offset| c_ULTIMATE.start_create_sub_list_~sub.base) c_ULTIMATE.start_create_sub_list_~sub.offset c_ULTIMATE.start_create_sub_list_~sub.offset)))) (store .cse0 v_ULTIMATE.start_insert_sub_~sub~0.base_27 (store (store (store (store (select .cse0 v_ULTIMATE.start_insert_sub_~sub~0.base_27) ULTIMATE.start_insert_sub_~sub~0.offset v_DerPreprocessor_21) .cse1 v_DerPreprocessor_22) .cse2 v_DerPreprocessor_23) .cse3 v_DerPreprocessor_24))) c_ULTIMATE.start_create_sub_list_~sub.base) .cse4)) (select (store |c_#length| v_ULTIMATE.start_insert_sub_~sub~0.base_27 (_ bv12 32)) (select (select (let ((.cse5 (store |c_#memory_$Pointer$.base| c_ULTIMATE.start_create_sub_list_~sub.base (store (select |c_#memory_$Pointer$.base| c_ULTIMATE.start_create_sub_list_~sub.base) c_ULTIMATE.start_create_sub_list_~sub.offset c_ULTIMATE.start_create_sub_list_~sub.base)))) (store .cse5 v_ULTIMATE.start_insert_sub_~sub~0.base_27 (store (store (store (store (select .cse5 v_ULTIMATE.start_insert_sub_~sub~0.base_27) ULTIMATE.start_insert_sub_~sub~0.offset v_DerPreprocessor_17) .cse1 v_DerPreprocessor_18) .cse2 v_DerPreprocessor_19) .cse3 v_DerPreprocessor_20))) c_ULTIMATE.start_create_sub_list_~sub.base) .cse4))))) (forall ((v_DerPreprocessor_21 (_ BitVec 32)) (ULTIMATE.start_insert_sub_~sub~0.offset (_ BitVec 32)) (v_DerPreprocessor_24 (_ BitVec 32)) (v_DerPreprocessor_22 (_ BitVec 32)) (v_DerPreprocessor_23 (_ BitVec 32))) (let ((.cse6 (select (select (let ((.cse7 (store |c_#memory_$Pointer$.offset| c_ULTIMATE.start_create_sub_list_~sub.base (store (select |c_#memory_$Pointer$.offset| c_ULTIMATE.start_create_sub_list_~sub.base) c_ULTIMATE.start_create_sub_list_~sub.offset c_ULTIMATE.start_create_sub_list_~sub.offset)))) (store .cse7 v_ULTIMATE.start_insert_sub_~sub~0.base_27 (store (store (store (store (select .cse7 v_ULTIMATE.start_insert_sub_~sub~0.base_27) ULTIMATE.start_insert_sub_~sub~0.offset v_DerPreprocessor_21) (bvadd ULTIMATE.start_insert_sub_~sub~0.offset (_ bv1 32)) v_DerPreprocessor_22) (bvadd (_ bv2 32) ULTIMATE.start_insert_sub_~sub~0.offset) v_DerPreprocessor_23) (bvadd (_ bv3 32) ULTIMATE.start_insert_sub_~sub~0.offset) v_DerPreprocessor_24))) c_ULTIMATE.start_create_sub_list_~sub.base) (bvadd c_ULTIMATE.start_create_sub_list_~sub.offset (_ bv4 32))))) (bvule .cse6 (bvadd (_ bv4 32) .cse6))))) (not (= (_ bv0 1) (bvneg (bvneg (bvneg (bvneg (select |c_#valid| v_ULTIMATE.start_insert_sub_~sub~0.base_27))))))))) is different from false [2021-11-07 02:00:01,507 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: BigInteger out of long range [2021-11-07 02:00:01,508 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [488173876] [2021-11-07 02:00:01,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:00:01,508 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 02:00:01,508 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68653f16-dd8d-4e1b-b9a5-ba98d87e3d2a/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 02:00:01,516 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68653f16-dd8d-4e1b-b9a5-ba98d87e3d2a/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 02:00:01,543 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68653f16-dd8d-4e1b-b9a5-ba98d87e3d2a/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2021-11-07 02:00:01,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:00:01,815 INFO L263 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 34 conjunts are in the unsatisfiable core [2021-11-07 02:00:01,816 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:00:01,827 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 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-07 02:00:04,221 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-07 02:00:04,230 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-07 02:00:04,277 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:00:04,278 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-11-07 02:00:04,292 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:00:04,293 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-11-07 02:00:04,338 INFO L354 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2021-11-07 02:00:04,339 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 18 [2021-11-07 02:00:04,369 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-07 02:00:04,369 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 17 treesize of output 17 [2021-11-07 02:00:04,609 INFO L354 Elim1Store]: treesize reduction 516, result has 2.8 percent of original size [2021-11-07 02:00:04,609 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 2 new quantified variables, introduced 5 case distinctions, treesize of input 130 treesize of output 88 [2021-11-07 02:00:04,744 INFO L354 Elim1Store]: treesize reduction 516, result has 2.8 percent of original size [2021-11-07 02:00:04,744 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 2 new quantified variables, introduced 5 case distinctions, treesize of input 82 treesize of output 40 [2021-11-07 02:00:04,823 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 22 treesize of output 10 [2021-11-07 02:00:04,832 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 22 treesize of output 10 [2021-11-07 02:00:04,915 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 02:00:04,916 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:00:05,025 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:00:05,026 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 192 [2021-11-07 02:00:05,029 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:00:05,031 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 294 [2021-11-07 02:00:07,459 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_DerPreprocessor_31 (_ BitVec 32)) (v_DerPreprocessor_32 (_ BitVec 32)) (ULTIMATE.start_insert_sub_~sub~0.offset (_ BitVec 32)) (v_DerPreprocessor_30 (_ BitVec 32)) (v_DerPreprocessor_29 (_ BitVec 32))) (let ((.cse0 (select (select (store |c_#memory_$Pointer$.offset| c_ULTIMATE.start_insert_sub_~sub~0.base (store (store (store (store (select |c_#memory_$Pointer$.offset| c_ULTIMATE.start_insert_sub_~sub~0.base) ULTIMATE.start_insert_sub_~sub~0.offset v_DerPreprocessor_29) (bvadd ULTIMATE.start_insert_sub_~sub~0.offset (_ bv1 32)) v_DerPreprocessor_30) (bvadd (_ bv2 32) ULTIMATE.start_insert_sub_~sub~0.offset) v_DerPreprocessor_31) (bvadd (_ bv3 32) ULTIMATE.start_insert_sub_~sub~0.offset) v_DerPreprocessor_32)) c_ULTIMATE.start_insert_sub_~head.base) (bvadd (_ bv4 32) c_ULTIMATE.start_insert_sub_~head.offset)))) (bvule .cse0 (bvadd (_ bv4 32) .cse0)))) (forall ((v_DerPreprocessor_31 (_ BitVec 32)) (v_DerPreprocessor_32 (_ BitVec 32)) (ULTIMATE.start_insert_sub_~sub~0.offset (_ BitVec 32)) (v_DerPreprocessor_30 (_ BitVec 32)) (v_DerPreprocessor_25 (_ BitVec 32)) (v_DerPreprocessor_28 (_ BitVec 32)) (v_DerPreprocessor_29 (_ BitVec 32)) (v_DerPreprocessor_26 (_ BitVec 32)) (v_DerPreprocessor_27 (_ BitVec 32))) (let ((.cse1 (bvadd ULTIMATE.start_insert_sub_~sub~0.offset (_ bv1 32))) (.cse2 (bvadd (_ bv2 32) ULTIMATE.start_insert_sub_~sub~0.offset)) (.cse3 (bvadd (_ bv3 32) ULTIMATE.start_insert_sub_~sub~0.offset)) (.cse4 (bvadd (_ bv4 32) c_ULTIMATE.start_insert_sub_~head.offset))) (bvule (bvadd (_ bv4 32) (select (select (store |c_#memory_$Pointer$.offset| c_ULTIMATE.start_insert_sub_~sub~0.base (store (store (store (store (select |c_#memory_$Pointer$.offset| c_ULTIMATE.start_insert_sub_~sub~0.base) ULTIMATE.start_insert_sub_~sub~0.offset v_DerPreprocessor_29) .cse1 v_DerPreprocessor_30) .cse2 v_DerPreprocessor_31) .cse3 v_DerPreprocessor_32)) c_ULTIMATE.start_insert_sub_~head.base) .cse4)) (select |c_#length| (select (select (store |c_#memory_$Pointer$.base| c_ULTIMATE.start_insert_sub_~sub~0.base (store (store (store (store (select |c_#memory_$Pointer$.base| c_ULTIMATE.start_insert_sub_~sub~0.base) ULTIMATE.start_insert_sub_~sub~0.offset v_DerPreprocessor_25) .cse1 v_DerPreprocessor_26) .cse2 v_DerPreprocessor_27) .cse3 v_DerPreprocessor_28)) c_ULTIMATE.start_insert_sub_~head.base) .cse4)))))) is different from false [2021-11-07 02:00:34,072 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-07 02:00:34,144 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-07 02:01:02,732 WARN L207 SmtUtils]: Spent 28.56 s on a formula simplification that was a NOOP. DAG size: 1332 [2021-11-07 02:01:02,986 INFO L354 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2021-11-07 02:01:02,988 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 9330607 treesize of output 9330606 [2021-11-07 02:01:30,987 WARN L207 SmtUtils]: Spent 28.00 s on a formula simplification that was a NOOP. DAG size: 1331 [2021-11-07 02:01:58,069 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: BigInteger out of long range [2021-11-07 02:01:58,069 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:01:58,069 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [] total 0 [2021-11-07 02:01:58,069 ERROR L172 FreeRefinementEngine]: Strategy WALRUS failed to provide any proof altough trace is infeasible [2021-11-07 02:01:58,070 INFO L627 BasicCegarLoop]: Counterexample might be feasible [2021-11-07 02:01:58,076 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15REQUIRES_VIOLATION [2021-11-07 02:01:58,078 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATION [2021-11-07 02:01:58,078 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATION [2021-11-07 02:01:58,079 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATION [2021-11-07 02:01:58,079 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATION [2021-11-07 02:01:58,079 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATION [2021-11-07 02:01:58,079 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5REQUIRES_VIOLATION [2021-11-07 02:01:58,079 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6REQUIRES_VIOLATION [2021-11-07 02:01:58,079 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7REQUIRES_VIOLATION [2021-11-07 02:01:58,080 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8REQUIRES_VIOLATION [2021-11-07 02:01:58,080 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9REQUIRES_VIOLATION [2021-11-07 02:01:58,080 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10REQUIRES_VIOLATION [2021-11-07 02:01:58,080 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11REQUIRES_VIOLATION [2021-11-07 02:01:58,080 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12REQUIRES_VIOLATION [2021-11-07 02:01:58,081 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13REQUIRES_VIOLATION [2021-11-07 02:01:58,081 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14REQUIRES_VIOLATION [2021-11-07 02:01:58,081 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr16REQUIRES_VIOLATION [2021-11-07 02:01:58,081 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr17REQUIRES_VIOLATION [2021-11-07 02:01:58,081 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr18REQUIRES_VIOLATION [2021-11-07 02:01:58,081 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr19REQUIRES_VIOLATION [2021-11-07 02:01:58,082 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr20REQUIRES_VIOLATION [2021-11-07 02:01:58,082 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr21REQUIRES_VIOLATION [2021-11-07 02:01:58,082 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr22REQUIRES_VIOLATION [2021-11-07 02:01:58,082 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr23REQUIRES_VIOLATION [2021-11-07 02:01:58,082 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr24REQUIRES_VIOLATION [2021-11-07 02:01:58,083 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr25REQUIRES_VIOLATION [2021-11-07 02:01:58,083 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr26REQUIRES_VIOLATION [2021-11-07 02:01:58,083 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr27REQUIRES_VIOLATION [2021-11-07 02:01:58,083 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr28REQUIRES_VIOLATION [2021-11-07 02:01:58,083 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr29REQUIRES_VIOLATION [2021-11-07 02:01:58,084 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr30REQUIRES_VIOLATION [2021-11-07 02:01:58,084 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr31REQUIRES_VIOLATION [2021-11-07 02:01:58,084 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr32REQUIRES_VIOLATION [2021-11-07 02:01:58,084 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr33REQUIRES_VIOLATION [2021-11-07 02:01:58,084 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr34REQUIRES_VIOLATION [2021-11-07 02:01:58,084 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr35REQUIRES_VIOLATION [2021-11-07 02:01:58,085 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr36REQUIRES_VIOLATION [2021-11-07 02:01:58,085 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr37REQUIRES_VIOLATION [2021-11-07 02:01:58,085 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr38REQUIRES_VIOLATION [2021-11-07 02:01:58,085 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr39REQUIRES_VIOLATION [2021-11-07 02:01:58,085 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr40REQUIRES_VIOLATION [2021-11-07 02:01:58,085 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr41REQUIRES_VIOLATION [2021-11-07 02:01:58,086 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr42REQUIRES_VIOLATION [2021-11-07 02:01:58,086 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr43REQUIRES_VIOLATION [2021-11-07 02:01:58,086 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr44REQUIRES_VIOLATION [2021-11-07 02:01:58,086 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr45REQUIRES_VIOLATION [2021-11-07 02:01:58,086 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr46REQUIRES_VIOLATION [2021-11-07 02:01:58,087 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr47REQUIRES_VIOLATION [2021-11-07 02:01:58,087 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr48REQUIRES_VIOLATION [2021-11-07 02:01:58,087 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr49REQUIRES_VIOLATION [2021-11-07 02:01:58,087 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr50ASSERT_VIOLATIONMEMORY_FREE [2021-11-07 02:01:58,087 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr51ASSERT_VIOLATIONMEMORY_FREE [2021-11-07 02:01:58,088 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr52ASSERT_VIOLATIONMEMORY_FREE [2021-11-07 02:01:58,088 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr53ASSERT_VIOLATIONMEMORY_FREE [2021-11-07 02:01:58,088 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr54ASSERT_VIOLATIONMEMORY_FREE [2021-11-07 02:01:58,088 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr55ASSERT_VIOLATIONMEMORY_FREE [2021-11-07 02:01:58,088 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr56ASSERT_VIOLATIONMEMORY_LEAK [2021-11-07 02:01:58,128 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68653f16-dd8d-4e1b-b9a5-ba98d87e3d2a/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2021-11-07 02:01:58,326 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68653f16-dd8d-4e1b-b9a5-ba98d87e3d2a/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (16)] Forceful destruction successful, exit code 0 [2021-11-07 02:01:58,532 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68653f16-dd8d-4e1b-b9a5-ba98d87e3d2a/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2021-11-07 02:01:58,716 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68653f16-dd8d-4e1b-b9a5-ba98d87e3d2a/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68653f16-dd8d-4e1b-b9a5-ba98d87e3d2a/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68653f16-dd8d-4e1b-b9a5-ba98d87e3d2a/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 02:01:58,719 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 02:01:58,722 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-07 02:01:58,736 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 02:01:58 BoogieIcfgContainer [2021-11-07 02:01:58,736 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-07 02:01:58,737 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-07 02:01:58,737 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-07 02:01:58,737 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-07 02:01:58,738 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:56:02" (3/4) ... [2021-11-07 02:01:58,741 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-07 02:01:58,742 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-07 02:01:58,743 INFO L168 Benchmark]: Toolchain (without parser) took 358281.57 ms. Allocated memory was 62.9 MB in the beginning and 438.3 MB in the end (delta: 375.4 MB). Free memory was 41.4 MB in the beginning and 270.7 MB in the end (delta: -229.3 MB). Peak memory consumption was 147.6 MB. Max. memory is 16.1 GB. [2021-11-07 02:01:58,743 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 62.9 MB. Free memory is still 44.4 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 02:01:58,745 INFO L168 Benchmark]: CACSL2BoogieTranslator took 596.76 ms. Allocated memory is still 62.9 MB. Free memory was 41.2 MB in the beginning and 34.4 MB in the end (delta: 6.9 MB). Peak memory consumption was 14.2 MB. Max. memory is 16.1 GB. [2021-11-07 02:01:58,745 INFO L168 Benchmark]: Boogie Procedure Inliner took 59.45 ms. Allocated memory is still 62.9 MB. Free memory was 34.4 MB in the beginning and 32.0 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-07 02:01:58,746 INFO L168 Benchmark]: Boogie Preprocessor took 69.78 ms. Allocated memory is still 62.9 MB. Free memory was 32.0 MB in the beginning and 29.7 MB in the end (delta: 2.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-11-07 02:01:58,746 INFO L168 Benchmark]: RCFGBuilder took 952.08 ms. Allocated memory was 62.9 MB in the beginning and 83.9 MB in the end (delta: 21.0 MB). Free memory was 29.5 MB in the beginning and 43.6 MB in the end (delta: -14.1 MB). Peak memory consumption was 5.7 MB. Max. memory is 16.1 GB. [2021-11-07 02:01:58,747 INFO L168 Benchmark]: TraceAbstraction took 356592.25 ms. Allocated memory was 83.9 MB in the beginning and 438.3 MB in the end (delta: 354.4 MB). Free memory was 42.9 MB in the beginning and 270.7 MB in the end (delta: -227.7 MB). Peak memory consumption was 255.8 MB. Max. memory is 16.1 GB. [2021-11-07 02:01:58,748 INFO L168 Benchmark]: Witness Printer took 5.16 ms. Allocated memory is still 438.3 MB. Free memory is still 270.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 02:01:58,753 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 62.9 MB. Free memory is still 44.4 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 596.76 ms. Allocated memory is still 62.9 MB. Free memory was 41.2 MB in the beginning and 34.4 MB in the end (delta: 6.9 MB). Peak memory consumption was 14.2 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 59.45 ms. Allocated memory is still 62.9 MB. Free memory was 34.4 MB in the beginning and 32.0 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 69.78 ms. Allocated memory is still 62.9 MB. Free memory was 32.0 MB in the beginning and 29.7 MB in the end (delta: 2.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 952.08 ms. Allocated memory was 62.9 MB in the beginning and 83.9 MB in the end (delta: 21.0 MB). Free memory was 29.5 MB in the beginning and 43.6 MB in the end (delta: -14.1 MB). Peak memory consumption was 5.7 MB. Max. memory is 16.1 GB. * TraceAbstraction took 356592.25 ms. Allocated memory was 83.9 MB in the beginning and 438.3 MB in the end (delta: 354.4 MB). Free memory was 42.9 MB in the beginning and 270.7 MB in the end (delta: -227.7 MB). Peak memory consumption was 255.8 MB. Max. memory is 16.1 GB. * Witness Printer took 5.16 ms. Allocated memory is still 438.3 MB. Free memory is still 270.7 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 534]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: unable to decide satisfiability of path constraint. Possible FailurePath: [L601] struct list_head top = { &(top), &(top) }; [L586] struct top_list *top = malloc(sizeof(*top)); [L587] COND FALSE !(!top) [L578] sub->prev = sub [L579] sub->next = sub [L570] struct sub_list *sub = malloc(sizeof(*sub)); [L571] COND FALSE !(!sub) [L573] sub->number = 0 [L538] head->prev [L531] next->prev = new [L532] new->next = next [L533] new->prev = prev [L534] prev->next = new - UnprovableResult [Line: 578]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 578]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 579]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 579]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 573]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 573]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 538]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 538]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 531]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 531]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 532]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 532]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 533]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 533]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 534]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 578]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 578]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 579]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 579]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 573]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 573]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 538]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 538]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 531]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 531]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 532]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 532]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 533]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 533]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 534]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 534]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 538]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 538]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 531]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 531]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 532]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 532]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 533]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 533]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 534]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 534]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 560]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 560]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 562]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 562]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 551]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 551]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 553]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 553]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 554]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 554]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 554]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 564]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 564]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 564]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 599]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 121 locations, 57 error locations. Started 1 CEGAR loops. OverallTime: 356.4s, OverallIterations: 13, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 51.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 788 SDtfs, 2789 SDslu, 1304 SDs, 0 SdLazy, 2060 SolverSat, 196 SolverUnsat, 3 SolverUnknown, 0 SolverNotchecked, 18.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 324 GetRequests, 200 SyntacticMatches, 8 SemanticMatches, 116 ConstructedPredicates, 6 IntricatePredicates, 2 DeprecatedPredicates, 370 ImplicationChecksByTransitivity, 50.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=121occurred in iteration=0, InterpolantAutomatonStates: 88, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 12 MinimizatonAttempts, 283 StatesRemovedByMinimization, 11 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 136.9s InterpolantComputationTime, 170 NumberOfCodeBlocks, 170 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 280 ConstructedInterpolants, 24 QuantifiedInterpolants, 2330 SizeOfPredicates, 119 NumberOfNonLiveVariables, 1289 ConjunctsInSsa, 156 ConjunctsInUnsatCore, 26 InterpolantComputations, 26 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-11-07 02:01:58,810 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68653f16-dd8d-4e1b-b9a5-ba98d87e3d2a/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN