./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/heap-manipulation/bubble_sort_linux-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 0f8a17c6 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca95623-7afe-470c-924d-ad61f3cdfb01/bin/utaipan-UbGMyvGFUs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca95623-7afe-470c-924d-ad61f3cdfb01/bin/utaipan-UbGMyvGFUs/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca95623-7afe-470c-924d-ad61f3cdfb01/bin/utaipan-UbGMyvGFUs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca95623-7afe-470c-924d-ad61f3cdfb01/bin/utaipan-UbGMyvGFUs/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/heap-manipulation/bubble_sort_linux-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca95623-7afe-470c-924d-ad61f3cdfb01/bin/utaipan-UbGMyvGFUs/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca95623-7afe-470c-924d-ad61f3cdfb01/bin/utaipan-UbGMyvGFUs --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 a38de44f112a10364737c35b840e673503a211a020b9f494a50e4a32c8fe31c0 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 13:29:26,557 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 13:29:26,561 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 13:29:26,627 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 13:29:26,628 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 13:29:26,634 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 13:29:26,637 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 13:29:26,643 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 13:29:26,646 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 13:29:26,654 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 13:29:26,656 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 13:29:26,658 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 13:29:26,659 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 13:29:26,663 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 13:29:26,666 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 13:29:26,672 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 13:29:26,674 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 13:29:26,676 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 13:29:26,679 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 13:29:26,689 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 13:29:26,692 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 13:29:26,694 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 13:29:26,699 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 13:29:26,700 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 13:29:26,712 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 13:29:26,713 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 13:29:26,714 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 13:29:26,717 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 13:29:26,718 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 13:29:26,720 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 13:29:26,720 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 13:29:26,722 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 13:29:26,725 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 13:29:26,727 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 13:29:26,730 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 13:29:26,730 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 13:29:26,731 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 13:29:26,732 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 13:29:26,732 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 13:29:26,733 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 13:29:26,734 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 13:29:26,736 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca95623-7afe-470c-924d-ad61f3cdfb01/bin/utaipan-UbGMyvGFUs/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2021-11-19 13:29:26,792 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 13:29:26,793 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 13:29:26,795 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 13:29:26,795 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 13:29:26,796 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-19 13:29:26,796 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-19 13:29:26,796 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-19 13:29:26,797 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-19 13:29:26,797 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-19 13:29:26,797 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-19 13:29:26,799 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-19 13:29:26,799 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-19 13:29:26,799 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-19 13:29:26,800 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-19 13:29:26,800 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-19 13:29:26,800 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-19 13:29:26,801 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-19 13:29:26,802 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-19 13:29:26,802 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 13:29:26,802 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-19 13:29:26,803 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-19 13:29:26,803 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-19 13:29:26,803 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-19 13:29:26,803 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 13:29:26,804 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-11-19 13:29:26,804 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-11-19 13:29:26,806 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-11-19 13:29:26,806 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 13:29:26,807 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-19 13:29:26,807 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-19 13:29:26,807 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 13:29:26,808 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 13:29:26,808 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 13:29:26,808 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 13:29:26,809 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 13:29:26,809 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 13:29:26,809 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-19 13:29:26,810 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-19 13:29:26,810 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 13:29:26,810 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-19 13:29:26,811 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_cca95623-7afe-470c-924d-ad61f3cdfb01/bin/utaipan-UbGMyvGFUs/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca95623-7afe-470c-924d-ad61f3cdfb01/bin/utaipan-UbGMyvGFUs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a38de44f112a10364737c35b840e673503a211a020b9f494a50e4a32c8fe31c0 [2021-11-19 13:29:27,152 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 13:29:27,201 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 13:29:27,203 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 13:29:27,205 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 13:29:27,206 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 13:29:27,207 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca95623-7afe-470c-924d-ad61f3cdfb01/bin/utaipan-UbGMyvGFUs/../../sv-benchmarks/c/heap-manipulation/bubble_sort_linux-1.i [2021-11-19 13:29:27,283 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca95623-7afe-470c-924d-ad61f3cdfb01/bin/utaipan-UbGMyvGFUs/data/db2c8603a/9ff0552bcfda4fd38b59b7b27ec5eec0/FLAG9f9d82b8f [2021-11-19 13:29:28,058 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 13:29:28,059 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca95623-7afe-470c-924d-ad61f3cdfb01/sv-benchmarks/c/heap-manipulation/bubble_sort_linux-1.i [2021-11-19 13:29:28,107 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca95623-7afe-470c-924d-ad61f3cdfb01/bin/utaipan-UbGMyvGFUs/data/db2c8603a/9ff0552bcfda4fd38b59b7b27ec5eec0/FLAG9f9d82b8f [2021-11-19 13:29:28,243 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca95623-7afe-470c-924d-ad61f3cdfb01/bin/utaipan-UbGMyvGFUs/data/db2c8603a/9ff0552bcfda4fd38b59b7b27ec5eec0 [2021-11-19 13:29:28,246 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 13:29:28,248 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 13:29:28,253 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 13:29:28,253 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 13:29:28,259 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 13:29:28,260 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 01:29:28" (1/1) ... [2021-11-19 13:29:28,261 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@346c8c60 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:29:28, skipping insertion in model container [2021-11-19 13:29:28,262 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 01:29:28" (1/1) ... [2021-11-19 13:29:28,274 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 13:29:28,360 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 13:29:28,920 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca95623-7afe-470c-924d-ad61f3cdfb01/sv-benchmarks/c/heap-manipulation/bubble_sort_linux-1.i[33822,33835] [2021-11-19 13:29:28,955 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 13:29:28,956 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 13:29:28,957 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 13:29:29,002 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 13:29:29,015 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) [2021-11-19 13:29:29,016 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@25c4b716 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:29:29, skipping insertion in model container [2021-11-19 13:29:29,016 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 13:29:29,017 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-19 13:29:29,020 INFO L158 Benchmark]: Toolchain (without parser) took 770.42ms. Allocated memory was 79.7MB in the beginning and 111.1MB in the end (delta: 31.5MB). Free memory was 43.3MB in the beginning and 81.0MB in the end (delta: -37.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-19 13:29:29,021 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 79.7MB. Free memory was 52.0MB in the beginning and 51.9MB in the end (delta: 27.7kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 13:29:29,023 INFO L158 Benchmark]: CACSL2BoogieTranslator took 763.98ms. Allocated memory was 79.7MB in the beginning and 111.1MB in the end (delta: 31.5MB). Free memory was 43.1MB in the beginning and 81.0MB in the end (delta: -37.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-19 13:29:29,025 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 79.7MB. Free memory was 52.0MB in the beginning and 51.9MB in the end (delta: 27.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 763.98ms. Allocated memory was 79.7MB in the beginning and 111.1MB in the end (delta: 31.5MB). Free memory was 43.1MB in the beginning and 81.0MB in the end (delta: -37.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 860]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca95623-7afe-470c-924d-ad61f3cdfb01/bin/utaipan-UbGMyvGFUs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca95623-7afe-470c-924d-ad61f3cdfb01/bin/utaipan-UbGMyvGFUs/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca95623-7afe-470c-924d-ad61f3cdfb01/bin/utaipan-UbGMyvGFUs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca95623-7afe-470c-924d-ad61f3cdfb01/bin/utaipan-UbGMyvGFUs/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/heap-manipulation/bubble_sort_linux-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca95623-7afe-470c-924d-ad61f3cdfb01/bin/utaipan-UbGMyvGFUs/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca95623-7afe-470c-924d-ad61f3cdfb01/bin/utaipan-UbGMyvGFUs --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 a38de44f112a10364737c35b840e673503a211a020b9f494a50e4a32c8fe31c0 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 13:29:31,858 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 13:29:31,861 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 13:29:31,899 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 13:29:31,902 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 13:29:31,907 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 13:29:31,911 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 13:29:31,918 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 13:29:31,922 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 13:29:31,924 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 13:29:31,926 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 13:29:31,930 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 13:29:31,931 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 13:29:31,938 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 13:29:31,941 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 13:29:31,944 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 13:29:31,947 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 13:29:31,950 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 13:29:31,958 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 13:29:31,964 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 13:29:31,972 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 13:29:31,974 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 13:29:31,977 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 13:29:31,981 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 13:29:31,989 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 13:29:31,997 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 13:29:31,998 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 13:29:31,999 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 13:29:31,999 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 13:29:32,000 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 13:29:32,001 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 13:29:32,002 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 13:29:32,006 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 13:29:32,008 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 13:29:32,010 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 13:29:32,011 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 13:29:32,012 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 13:29:32,012 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 13:29:32,013 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 13:29:32,015 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 13:29:32,016 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 13:29:32,020 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca95623-7afe-470c-924d-ad61f3cdfb01/bin/utaipan-UbGMyvGFUs/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf [2021-11-19 13:29:32,078 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 13:29:32,078 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 13:29:32,080 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 13:29:32,080 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 13:29:32,080 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-19 13:29:32,080 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-19 13:29:32,081 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-19 13:29:32,081 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-19 13:29:32,081 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-19 13:29:32,082 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-19 13:29:32,084 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-19 13:29:32,085 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-19 13:29:32,085 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 13:29:32,085 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-19 13:29:32,085 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-19 13:29:32,086 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-19 13:29:32,086 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-19 13:29:32,086 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 13:29:32,086 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-11-19 13:29:32,087 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-11-19 13:29:32,087 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-11-19 13:29:32,087 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 13:29:32,087 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-19 13:29:32,088 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-19 13:29:32,088 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-19 13:29:32,088 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-19 13:29:32,088 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 13:29:32,089 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 13:29:32,089 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-19 13:29:32,089 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 13:29:32,090 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 13:29:32,090 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 13:29:32,090 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 13:29:32,091 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-19 13:29:32,091 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-19 13:29:32,091 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 13:29:32,091 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-19 13:29:32,092 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_cca95623-7afe-470c-924d-ad61f3cdfb01/bin/utaipan-UbGMyvGFUs/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca95623-7afe-470c-924d-ad61f3cdfb01/bin/utaipan-UbGMyvGFUs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a38de44f112a10364737c35b840e673503a211a020b9f494a50e4a32c8fe31c0 [2021-11-19 13:29:32,558 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 13:29:32,589 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 13:29:32,593 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 13:29:32,595 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 13:29:32,596 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 13:29:32,597 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca95623-7afe-470c-924d-ad61f3cdfb01/bin/utaipan-UbGMyvGFUs/../../sv-benchmarks/c/heap-manipulation/bubble_sort_linux-1.i [2021-11-19 13:29:32,683 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca95623-7afe-470c-924d-ad61f3cdfb01/bin/utaipan-UbGMyvGFUs/data/6fead392b/aa006e6e07e441158aea708049630eb0/FLAGdd3f4b8aa [2021-11-19 13:29:33,566 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 13:29:33,573 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca95623-7afe-470c-924d-ad61f3cdfb01/sv-benchmarks/c/heap-manipulation/bubble_sort_linux-1.i [2021-11-19 13:29:33,598 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca95623-7afe-470c-924d-ad61f3cdfb01/bin/utaipan-UbGMyvGFUs/data/6fead392b/aa006e6e07e441158aea708049630eb0/FLAGdd3f4b8aa [2021-11-19 13:29:33,760 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca95623-7afe-470c-924d-ad61f3cdfb01/bin/utaipan-UbGMyvGFUs/data/6fead392b/aa006e6e07e441158aea708049630eb0 [2021-11-19 13:29:33,763 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 13:29:33,765 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 13:29:33,767 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 13:29:33,767 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 13:29:33,772 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 13:29:33,773 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 01:29:33" (1/1) ... [2021-11-19 13:29:33,774 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1e85e761 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:29:33, skipping insertion in model container [2021-11-19 13:29:33,775 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 01:29:33" (1/1) ... [2021-11-19 13:29:33,783 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 13:29:33,866 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 13:29:34,521 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca95623-7afe-470c-924d-ad61f3cdfb01/sv-benchmarks/c/heap-manipulation/bubble_sort_linux-1.i[33822,33835] [2021-11-19 13:29:34,582 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 13:29:34,598 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-19 13:29:34,609 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 13:29:34,643 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca95623-7afe-470c-924d-ad61f3cdfb01/sv-benchmarks/c/heap-manipulation/bubble_sort_linux-1.i[33822,33835] [2021-11-19 13:29:34,670 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 13:29:34,678 INFO L203 MainTranslator]: Completed pre-run [2021-11-19 13:29:34,720 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca95623-7afe-470c-924d-ad61f3cdfb01/sv-benchmarks/c/heap-manipulation/bubble_sort_linux-1.i[33822,33835] [2021-11-19 13:29:34,748 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 13:29:34,853 INFO L208 MainTranslator]: Completed translation [2021-11-19 13:29:34,854 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:29:34 WrapperNode [2021-11-19 13:29:34,854 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 13:29:34,856 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-19 13:29:34,856 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-19 13:29:34,856 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-19 13:29:34,865 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:29:34" (1/1) ... [2021-11-19 13:29:34,895 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:29:34" (1/1) ... [2021-11-19 13:29:34,930 INFO L137 Inliner]: procedures = 236, calls = 75, calls flagged for inlining = 10, calls inlined = 10, statements flattened = 115 [2021-11-19 13:29:34,931 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-19 13:29:34,932 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-19 13:29:34,932 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-19 13:29:34,932 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-19 13:29:34,943 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:29:34" (1/1) ... [2021-11-19 13:29:34,944 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:29:34" (1/1) ... [2021-11-19 13:29:34,950 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:29:34" (1/1) ... [2021-11-19 13:29:34,950 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:29:34" (1/1) ... [2021-11-19 13:29:34,972 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:29:34" (1/1) ... [2021-11-19 13:29:34,984 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:29:34" (1/1) ... [2021-11-19 13:29:34,987 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:29:34" (1/1) ... [2021-11-19 13:29:34,994 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-19 13:29:34,995 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-19 13:29:34,995 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-19 13:29:34,996 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-19 13:29:34,997 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:29:34" (1/1) ... [2021-11-19 13:29:35,006 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 13:29:35,022 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca95623-7afe-470c-924d-ad61f3cdfb01/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 13:29:35,037 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca95623-7afe-470c-924d-ad61f3cdfb01/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-19 13:29:35,058 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca95623-7afe-470c-924d-ad61f3cdfb01/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-19 13:29:35,097 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-19 13:29:35,097 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-19 13:29:35,098 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-19 13:29:35,099 INFO L130 BoogieDeclarations]: Found specification of procedure inspect [2021-11-19 13:29:35,099 INFO L138 BoogieDeclarations]: Found implementation of procedure inspect [2021-11-19 13:29:35,099 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-19 13:29:35,099 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-19 13:29:35,100 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-19 13:29:35,100 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-19 13:29:35,100 INFO L130 BoogieDeclarations]: Found specification of procedure val_from_node [2021-11-19 13:29:35,100 INFO L138 BoogieDeclarations]: Found implementation of procedure val_from_node [2021-11-19 13:29:35,100 INFO L130 BoogieDeclarations]: Found specification of procedure fail [2021-11-19 13:29:35,101 INFO L138 BoogieDeclarations]: Found implementation of procedure fail [2021-11-19 13:29:35,101 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-19 13:29:35,101 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-19 13:29:35,101 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-19 13:29:35,101 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2021-11-19 13:29:35,102 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2021-11-19 13:29:35,103 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-19 13:29:35,103 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-19 13:29:35,344 INFO L236 CfgBuilder]: Building ICFG [2021-11-19 13:29:35,346 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-19 13:29:36,559 INFO L277 CfgBuilder]: Performing block encoding [2021-11-19 13:29:36,571 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-19 13:29:36,571 INFO L301 CfgBuilder]: Removed 41 assume(true) statements. [2021-11-19 13:29:36,574 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 01:29:36 BoogieIcfgContainer [2021-11-19 13:29:36,575 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-19 13:29:36,577 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-19 13:29:36,577 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-19 13:29:36,581 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-19 13:29:36,582 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 01:29:33" (1/3) ... [2021-11-19 13:29:36,583 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6127ced7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 01:29:36, skipping insertion in model container [2021-11-19 13:29:36,583 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:29:34" (2/3) ... [2021-11-19 13:29:36,583 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6127ced7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 01:29:36, skipping insertion in model container [2021-11-19 13:29:36,584 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 01:29:36" (3/3) ... [2021-11-19 13:29:36,585 INFO L111 eAbstractionObserver]: Analyzing ICFG bubble_sort_linux-1.i [2021-11-19 13:29:36,593 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-19 13:29:36,593 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 71 error locations. [2021-11-19 13:29:36,657 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-19 13:29:36,667 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 [2021-11-19 13:29:36,667 INFO L340 AbstractCegarLoop]: Starting to check reachability of 71 error locations. [2021-11-19 13:29:36,704 INFO L276 IsEmpty]: Start isEmpty. Operand has 216 states, 117 states have (on average 2.1623931623931623) internal successors, (253), 206 states have internal predecessors, (253), 23 states have call successors, (23), 4 states have call predecessors, (23), 4 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2021-11-19 13:29:36,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-11-19 13:29:36,718 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:29:36,719 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-11-19 13:29:36,720 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATION === [val_from_nodeErr0REQUIRES_VIOLATION, val_from_nodeErr1REQUIRES_VIOLATION, failErr0ASSERT_VIOLATIONMEMORY_LEAK, inspectErr0REQUIRES_VIOLATION (and 67 more)] === [2021-11-19 13:29:36,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:29:36,734 INFO L85 PathProgramCache]: Analyzing trace with hash 378924727, now seen corresponding path program 1 times [2021-11-19 13:29:36,750 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:29:36,752 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [367668265] [2021-11-19 13:29:36,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:29:36,755 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:29:36,755 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca95623-7afe-470c-924d-ad61f3cdfb01/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:29:36,764 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca95623-7afe-470c-924d-ad61f3cdfb01/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:29:36,777 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca95623-7afe-470c-924d-ad61f3cdfb01/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-19 13:29:36,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:29:36,873 INFO L263 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-19 13:29:36,877 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:29:36,916 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 13:29:36,917 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:29:36,932 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 13:29:36,933 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:29:36,933 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [367668265] [2021-11-19 13:29:36,934 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [367668265] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:29:36,934 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:29:36,935 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-19 13:29:36,936 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1181297403] [2021-11-19 13:29:36,937 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:29:36,942 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-19 13:29:36,942 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:29:36,981 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-19 13:29:36,982 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-19 13:29:36,985 INFO L87 Difference]: Start difference. First operand has 216 states, 117 states have (on average 2.1623931623931623) internal successors, (253), 206 states have internal predecessors, (253), 23 states have call successors, (23), 4 states have call predecessors, (23), 4 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) 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) [2021-11-19 13:29:37,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:29:37,022 INFO L93 Difference]: Finished difference Result 212 states and 234 transitions. [2021-11-19 13:29:37,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-19 13:29:37,028 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 [2021-11-19 13:29:37,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:29:37,044 INFO L225 Difference]: With dead ends: 212 [2021-11-19 13:29:37,045 INFO L226 Difference]: Without dead ends: 210 [2021-11-19 13:29:37,046 INFO L932 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 [2021-11-19 13:29:37,051 INFO L933 BasicCegarLoop]: 234 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 234 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 13:29:37,053 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 234 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 13:29:37,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 210 states. [2021-11-19 13:29:37,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 210 to 210. [2021-11-19 13:29:37,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 210 states, 115 states have (on average 1.7826086956521738) internal successors, (205), 199 states have internal predecessors, (205), 21 states have call successors, (21), 4 states have call predecessors, (21), 3 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2021-11-19 13:29:37,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 232 transitions. [2021-11-19 13:29:37,126 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 232 transitions. Word has length 5 [2021-11-19 13:29:37,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:29:37,126 INFO L470 AbstractCegarLoop]: Abstraction has 210 states and 232 transitions. [2021-11-19 13:29:37,127 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) [2021-11-19 13:29:37,127 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 232 transitions. [2021-11-19 13:29:37,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-11-19 13:29:37,128 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:29:37,128 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-11-19 13:29:37,149 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca95623-7afe-470c-924d-ad61f3cdfb01/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2021-11-19 13:29:37,339 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca95623-7afe-470c-924d-ad61f3cdfb01/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:29:37,340 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATION === [val_from_nodeErr0REQUIRES_VIOLATION, val_from_nodeErr1REQUIRES_VIOLATION, failErr0ASSERT_VIOLATIONMEMORY_LEAK, inspectErr0REQUIRES_VIOLATION (and 67 more)] === [2021-11-19 13:29:37,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:29:37,342 INFO L85 PathProgramCache]: Analyzing trace with hash 378924789, now seen corresponding path program 1 times [2021-11-19 13:29:37,342 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:29:37,342 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1714948235] [2021-11-19 13:29:37,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:29:37,343 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:29:37,343 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca95623-7afe-470c-924d-ad61f3cdfb01/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:29:37,344 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca95623-7afe-470c-924d-ad61f3cdfb01/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:29:37,357 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca95623-7afe-470c-924d-ad61f3cdfb01/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-19 13:29:37,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:29:37,417 INFO L263 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 13:29:37,418 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:29:37,472 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 [2021-11-19 13:29:37,494 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 13:29:37,494 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:29:37,523 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 13:29:37,524 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:29:37,525 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1714948235] [2021-11-19 13:29:37,530 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1714948235] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:29:37,531 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:29:37,531 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-19 13:29:37,531 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1131556925] [2021-11-19 13:29:37,531 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:29:37,532 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-19 13:29:37,533 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:29:37,533 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-19 13:29:37,534 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 13:29:37,534 INFO L87 Difference]: Start difference. First operand 210 states and 232 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 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) [2021-11-19 13:29:37,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:29:37,979 INFO L93 Difference]: Finished difference Result 229 states and 251 transitions. [2021-11-19 13:29:37,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 13:29:37,981 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 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 [2021-11-19 13:29:37,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:29:37,984 INFO L225 Difference]: With dead ends: 229 [2021-11-19 13:29:37,984 INFO L226 Difference]: Without dead ends: 229 [2021-11-19 13:29:37,985 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 13:29:37,986 INFO L933 BasicCegarLoop]: 201 mSDtfsCounter, 69 mSDsluCounter, 113 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 314 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-11-19 13:29:37,987 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [75 Valid, 314 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-11-19 13:29:37,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 229 states. [2021-11-19 13:29:38,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 229 to 207. [2021-11-19 13:29:38,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 207 states, 115 states have (on average 1.7565217391304349) internal successors, (202), 196 states have internal predecessors, (202), 21 states have call successors, (21), 4 states have call predecessors, (21), 3 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2021-11-19 13:29:38,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 229 transitions. [2021-11-19 13:29:38,030 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 229 transitions. Word has length 5 [2021-11-19 13:29:38,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:29:38,030 INFO L470 AbstractCegarLoop]: Abstraction has 207 states and 229 transitions. [2021-11-19 13:29:38,031 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 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) [2021-11-19 13:29:38,031 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 229 transitions. [2021-11-19 13:29:38,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-11-19 13:29:38,032 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:29:38,032 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-11-19 13:29:38,050 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca95623-7afe-470c-924d-ad61f3cdfb01/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-19 13:29:38,232 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca95623-7afe-470c-924d-ad61f3cdfb01/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:29:38,233 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATION === [val_from_nodeErr0REQUIRES_VIOLATION, val_from_nodeErr1REQUIRES_VIOLATION, failErr0ASSERT_VIOLATIONMEMORY_LEAK, inspectErr0REQUIRES_VIOLATION (and 67 more)] === [2021-11-19 13:29:38,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:29:38,234 INFO L85 PathProgramCache]: Analyzing trace with hash 378924790, now seen corresponding path program 1 times [2021-11-19 13:29:38,234 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:29:38,235 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [258655853] [2021-11-19 13:29:38,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:29:38,235 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:29:38,235 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca95623-7afe-470c-924d-ad61f3cdfb01/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:29:38,241 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca95623-7afe-470c-924d-ad61f3cdfb01/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:29:38,250 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca95623-7afe-470c-924d-ad61f3cdfb01/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-19 13:29:38,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:29:38,322 INFO L263 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-19 13:29:38,323 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:29:38,367 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 [2021-11-19 13:29:38,414 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 13:29:38,414 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:29:38,561 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 13:29:38,562 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:29:38,562 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [258655853] [2021-11-19 13:29:38,563 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [258655853] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:29:38,563 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:29:38,563 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2021-11-19 13:29:38,564 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1998244822] [2021-11-19 13:29:38,564 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:29:38,564 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 13:29:38,565 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:29:38,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 13:29:38,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 13:29:38,566 INFO L87 Difference]: Start difference. First operand 207 states and 229 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:29:39,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:29:39,256 INFO L93 Difference]: Finished difference Result 205 states and 227 transitions. [2021-11-19 13:29:39,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 13:29:39,257 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2021-11-19 13:29:39,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:29:39,260 INFO L225 Difference]: With dead ends: 205 [2021-11-19 13:29:39,260 INFO L226 Difference]: Without dead ends: 205 [2021-11-19 13:29:39,260 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 13:29:39,262 INFO L933 BasicCegarLoop]: 204 mSDtfsCounter, 67 mSDsluCounter, 204 mSDsCounter, 0 mSdLazyCounter, 121 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 408 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-11-19 13:29:39,263 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [73 Valid, 408 Invalid, 123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 121 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-11-19 13:29:39,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states. [2021-11-19 13:29:39,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 204. [2021-11-19 13:29:39,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 204 states, 115 states have (on average 1.7304347826086957) internal successors, (199), 193 states have internal predecessors, (199), 21 states have call successors, (21), 4 states have call predecessors, (21), 3 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2021-11-19 13:29:39,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 226 transitions. [2021-11-19 13:29:39,280 INFO L78 Accepts]: Start accepts. Automaton has 204 states and 226 transitions. Word has length 5 [2021-11-19 13:29:39,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:29:39,280 INFO L470 AbstractCegarLoop]: Abstraction has 204 states and 226 transitions. [2021-11-19 13:29:39,281 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:29:39,281 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 226 transitions. [2021-11-19 13:29:39,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-19 13:29:39,281 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:29:39,282 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:29:39,301 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca95623-7afe-470c-924d-ad61f3cdfb01/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-19 13:29:39,494 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca95623-7afe-470c-924d-ad61f3cdfb01/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:29:39,494 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting list_addErr0REQUIRES_VIOLATION === [val_from_nodeErr0REQUIRES_VIOLATION, val_from_nodeErr1REQUIRES_VIOLATION, failErr0ASSERT_VIOLATIONMEMORY_LEAK, inspectErr0REQUIRES_VIOLATION (and 67 more)] === [2021-11-19 13:29:39,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:29:39,495 INFO L85 PathProgramCache]: Analyzing trace with hash 1374843154, now seen corresponding path program 1 times [2021-11-19 13:29:39,496 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:29:39,496 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2076761069] [2021-11-19 13:29:39,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:29:39,497 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:29:39,497 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca95623-7afe-470c-924d-ad61f3cdfb01/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:29:39,498 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca95623-7afe-470c-924d-ad61f3cdfb01/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:29:39,502 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca95623-7afe-470c-924d-ad61f3cdfb01/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-19 13:29:39,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:29:39,602 INFO L263 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-19 13:29:39,603 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:29:39,611 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 [2021-11-19 13:29:39,682 INFO L354 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2021-11-19 13:29:39,683 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 2 case distinctions, treesize of input 26 treesize of output 33 [2021-11-19 13:29:40,067 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 13:29:40,067 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:29:46,300 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 13:29:46,300 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:29:46,301 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2076761069] [2021-11-19 13:29:46,301 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2076761069] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:29:46,301 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:29:46,301 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 7 [2021-11-19 13:29:46,302 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1688387744] [2021-11-19 13:29:46,302 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:29:46,302 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-19 13:29:46,303 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:29:46,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-19 13:29:46,303 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=49, Unknown=3, NotChecked=0, Total=72 [2021-11-19 13:29:46,304 INFO L87 Difference]: Start difference. First operand 204 states and 226 transitions. Second operand has 9 states, 8 states have (on average 1.75) internal successors, (14), 6 states have internal predecessors, (14), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:29:46,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:29:46,597 INFO L93 Difference]: Finished difference Result 210 states and 234 transitions. [2021-11-19 13:29:46,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-19 13:29:46,597 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 1.75) internal successors, (14), 6 states have internal predecessors, (14), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2021-11-19 13:29:46,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:29:46,601 INFO L225 Difference]: With dead ends: 210 [2021-11-19 13:29:46,601 INFO L226 Difference]: Without dead ends: 210 [2021-11-19 13:29:46,601 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 6.3s TimeCoverageRelationStatistics Valid=20, Invalid=49, Unknown=3, NotChecked=0, Total=72 [2021-11-19 13:29:46,603 INFO L933 BasicCegarLoop]: 221 mSDtfsCounter, 1 mSDsluCounter, 606 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 827 SdHoareTripleChecker+Invalid, 224 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 153 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-19 13:29:46,603 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 827 Invalid, 224 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 71 Invalid, 0 Unknown, 153 Unchecked, 0.3s Time] [2021-11-19 13:29:46,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 210 states. [2021-11-19 13:29:46,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 210 to 210. [2021-11-19 13:29:46,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 210 states, 120 states have (on average 1.7083333333333333) internal successors, (205), 198 states have internal predecessors, (205), 22 states have call successors, (22), 5 states have call predecessors, (22), 3 states have return successors, (7), 6 states have call predecessors, (7), 7 states have call successors, (7) [2021-11-19 13:29:46,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 234 transitions. [2021-11-19 13:29:46,645 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 234 transitions. Word has length 8 [2021-11-19 13:29:46,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:29:46,645 INFO L470 AbstractCegarLoop]: Abstraction has 210 states and 234 transitions. [2021-11-19 13:29:46,646 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 1.75) internal successors, (14), 6 states have internal predecessors, (14), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:29:46,646 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 234 transitions. [2021-11-19 13:29:46,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-19 13:29:46,647 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:29:46,647 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:29:46,673 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca95623-7afe-470c-924d-ad61f3cdfb01/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-19 13:29:46,869 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca95623-7afe-470c-924d-ad61f3cdfb01/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:29:46,869 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting list_addErr1REQUIRES_VIOLATION === [val_from_nodeErr0REQUIRES_VIOLATION, val_from_nodeErr1REQUIRES_VIOLATION, failErr0ASSERT_VIOLATIONMEMORY_LEAK, inspectErr0REQUIRES_VIOLATION (and 67 more)] === [2021-11-19 13:29:46,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:29:46,870 INFO L85 PathProgramCache]: Analyzing trace with hash 1374843155, now seen corresponding path program 1 times [2021-11-19 13:29:46,870 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:29:46,870 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1030487377] [2021-11-19 13:29:46,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:29:46,871 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:29:46,871 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca95623-7afe-470c-924d-ad61f3cdfb01/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:29:46,872 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca95623-7afe-470c-924d-ad61f3cdfb01/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:29:46,878 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca95623-7afe-470c-924d-ad61f3cdfb01/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-19 13:29:46,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:29:46,995 INFO L263 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-19 13:29:46,996 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:29:47,014 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-19 13:29:47,023 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 [2021-11-19 13:29:47,110 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-11-19 13:29:47,111 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 28 treesize of output 30 [2021-11-19 13:29:47,125 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-19 13:29:47,126 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 23 [2021-11-19 13:29:47,303 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 13:29:47,303 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:29:53,003 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 13:29:53,003 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:29:53,003 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1030487377] [2021-11-19 13:29:53,004 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1030487377] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:29:53,004 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:29:53,004 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 8 [2021-11-19 13:29:53,004 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [961994371] [2021-11-19 13:29:53,005 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:29:53,005 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-19 13:29:53,005 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:29:53,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-19 13:29:53,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=65, Unknown=2, NotChecked=0, Total=90 [2021-11-19 13:29:53,007 INFO L87 Difference]: Start difference. First operand 210 states and 234 transitions. Second operand has 10 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 7 states have internal predecessors, (14), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:29:56,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:29:56,032 INFO L93 Difference]: Finished difference Result 316 states and 353 transitions. [2021-11-19 13:29:56,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-19 13:29:56,035 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 7 states have internal predecessors, (14), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2021-11-19 13:29:56,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:29:56,038 INFO L225 Difference]: With dead ends: 316 [2021-11-19 13:29:56,038 INFO L226 Difference]: Without dead ends: 316 [2021-11-19 13:29:56,039 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 5.6s TimeCoverageRelationStatistics Valid=29, Invalid=79, Unknown=2, NotChecked=0, Total=110 [2021-11-19 13:29:56,040 INFO L933 BasicCegarLoop]: 287 mSDtfsCounter, 187 mSDsluCounter, 911 mSDsCounter, 0 mSdLazyCounter, 452 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 188 SdHoareTripleChecker+Valid, 1198 SdHoareTripleChecker+Invalid, 668 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 452 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 210 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2021-11-19 13:29:56,041 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [188 Valid, 1198 Invalid, 668 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 452 Invalid, 0 Unknown, 210 Unchecked, 2.9s Time] [2021-11-19 13:29:56,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 316 states. [2021-11-19 13:29:56,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 316 to 267. [2021-11-19 13:29:56,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 267 states, 178 states have (on average 1.7247191011235956) internal successors, (307), 254 states have internal predecessors, (307), 22 states have call successors, (22), 6 states have call predecessors, (22), 4 states have return successors, (7), 6 states have call predecessors, (7), 7 states have call successors, (7) [2021-11-19 13:29:56,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 267 states to 267 states and 336 transitions. [2021-11-19 13:29:56,078 INFO L78 Accepts]: Start accepts. Automaton has 267 states and 336 transitions. Word has length 8 [2021-11-19 13:29:56,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:29:56,079 INFO L470 AbstractCegarLoop]: Abstraction has 267 states and 336 transitions. [2021-11-19 13:29:56,079 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 7 states have internal predecessors, (14), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:29:56,079 INFO L276 IsEmpty]: Start isEmpty. Operand 267 states and 336 transitions. [2021-11-19 13:29:56,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-11-19 13:29:56,080 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:29:56,085 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:29:56,106 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca95623-7afe-470c-924d-ad61f3cdfb01/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-19 13:29:56,300 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca95623-7afe-470c-924d-ad61f3cdfb01/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:29:56,300 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting list_addErr2REQUIRES_VIOLATION === [val_from_nodeErr0REQUIRES_VIOLATION, val_from_nodeErr1REQUIRES_VIOLATION, failErr0ASSERT_VIOLATIONMEMORY_LEAK, inspectErr0REQUIRES_VIOLATION (and 67 more)] === [2021-11-19 13:29:56,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:29:56,301 INFO L85 PathProgramCache]: Analyzing trace with hash -1625645901, now seen corresponding path program 1 times [2021-11-19 13:29:56,302 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:29:56,302 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [828266989] [2021-11-19 13:29:56,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:29:56,302 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:29:56,303 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca95623-7afe-470c-924d-ad61f3cdfb01/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:29:56,305 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca95623-7afe-470c-924d-ad61f3cdfb01/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:29:56,346 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca95623-7afe-470c-924d-ad61f3cdfb01/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-19 13:29:56,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:29:56,457 INFO L263 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 16 conjunts are in the unsatisfiable core [2021-11-19 13:29:56,459 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:29:56,510 INFO L354 Elim1Store]: treesize reduction 8, result has 60.0 percent of original size [2021-11-19 13:29:56,510 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 13 treesize of output 22 [2021-11-19 13:29:56,748 INFO L354 Elim1Store]: treesize reduction 9, result has 64.0 percent of original size [2021-11-19 13:29:56,749 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 34 treesize of output 43 [2021-11-19 13:29:57,119 INFO L354 Elim1Store]: treesize reduction 336, result has 2.0 percent of original size [2021-11-19 13:29:57,120 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 4 case distinctions, treesize of input 60 treesize of output 15 [2021-11-19 13:29:57,226 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 24 treesize of output 16 [2021-11-19 13:29:57,303 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 13:29:57,303 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:29:57,351 INFO L354 Elim1Store]: treesize reduction 5, result has 58.3 percent of original size [2021-11-19 13:29:57,352 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 [2021-11-19 13:29:57,396 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:29:57,399 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 113 [2021-11-19 13:30:02,078 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_gl_insert_~node~1#1.base_20| (_ BitVec 32))) (or (not (= (_ bv0 1) (bvneg (bvneg (bvneg (bvneg (select |c_#valid| |v_ULTIMATE.start_gl_insert_~node~1#1.base_20|))))))) (forall ((|ULTIMATE.start_gl_insert_~node~1#1.offset| (_ BitVec 32)) (v_DerPreprocessor_4 (_ BitVec 32)) (v_DerPreprocessor_3 (_ BitVec 32)) (v_DerPreprocessor_2 (_ BitVec 32)) (v_DerPreprocessor_1 (_ BitVec 32))) (= (select (select (store |c_#memory_$Pointer$.base| |v_ULTIMATE.start_gl_insert_~node~1#1.base_20| (store (store (store (store (select |c_#memory_$Pointer$.base| |v_ULTIMATE.start_gl_insert_~node~1#1.base_20|) |ULTIMATE.start_gl_insert_~node~1#1.offset| v_DerPreprocessor_1) (bvadd |ULTIMATE.start_gl_insert_~node~1#1.offset| (_ bv1 32)) v_DerPreprocessor_2) (bvadd (_ bv2 32) |ULTIMATE.start_gl_insert_~node~1#1.offset|) v_DerPreprocessor_3) (bvadd (_ bv3 32) |ULTIMATE.start_gl_insert_~node~1#1.offset|) v_DerPreprocessor_4)) |c_~#gl_list~0.base|) |c_~#gl_list~0.offset|) |c_~#gl_list~0.base|)))) is different from false [2021-11-19 13:30:02,133 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 13:30:02,134 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:30:02,134 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [828266989] [2021-11-19 13:30:02,134 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [828266989] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:30:02,134 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:30:02,134 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 9 [2021-11-19 13:30:02,135 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1310947981] [2021-11-19 13:30:02,135 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:30:02,135 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-19 13:30:02,136 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:30:02,136 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-19 13:30:02,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=69, Unknown=2, NotChecked=16, Total=110 [2021-11-19 13:30:02,137 INFO L87 Difference]: Start difference. First operand 267 states and 336 transitions. Second operand has 11 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 9 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:30:04,161 WARN L838 $PredicateComparison]: unable to prove that (and (= |c_~#gl_list~0.base| (select (select |c_#memory_$Pointer$.base| |c_~#gl_list~0.base|) |c_~#gl_list~0.offset|)) (= (_ bv0 1) (bvadd (_ bv1 1) (bvneg (select |c_#valid| |c_~#gl_list~0.base|)))) (forall ((|v_ULTIMATE.start_gl_insert_~node~1#1.base_20| (_ BitVec 32))) (or (not (= (_ bv0 1) (bvneg (bvneg (bvneg (bvneg (select |c_#valid| |v_ULTIMATE.start_gl_insert_~node~1#1.base_20|))))))) (forall ((|ULTIMATE.start_gl_insert_~node~1#1.offset| (_ BitVec 32)) (v_DerPreprocessor_4 (_ BitVec 32)) (v_DerPreprocessor_3 (_ BitVec 32)) (v_DerPreprocessor_2 (_ BitVec 32)) (v_DerPreprocessor_1 (_ BitVec 32))) (= (select (select (store |c_#memory_$Pointer$.base| |v_ULTIMATE.start_gl_insert_~node~1#1.base_20| (store (store (store (store (select |c_#memory_$Pointer$.base| |v_ULTIMATE.start_gl_insert_~node~1#1.base_20|) |ULTIMATE.start_gl_insert_~node~1#1.offset| v_DerPreprocessor_1) (bvadd |ULTIMATE.start_gl_insert_~node~1#1.offset| (_ bv1 32)) v_DerPreprocessor_2) (bvadd (_ bv2 32) |ULTIMATE.start_gl_insert_~node~1#1.offset|) v_DerPreprocessor_3) (bvadd (_ bv3 32) |ULTIMATE.start_gl_insert_~node~1#1.offset|) v_DerPreprocessor_4)) |c_~#gl_list~0.base|) |c_~#gl_list~0.offset|) |c_~#gl_list~0.base|)))) (exists ((v_arrayElimCell_6 (_ BitVec 1))) (let ((.cse0 (bvneg v_arrayElimCell_6))) (and (= (_ bv0 1) .cse0) (or (= (_ bv0 1) (bvadd .cse0 (select |c_#valid| (_ bv0 32)))) (= |c_~#gl_list~0.base| (_ bv0 32))))))) is different from false [2021-11-19 13:30:05,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:30:05,307 INFO L93 Difference]: Finished difference Result 280 states and 349 transitions. [2021-11-19 13:30:05,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-19 13:30:05,308 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 9 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2021-11-19 13:30:05,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:30:05,311 INFO L225 Difference]: With dead ends: 280 [2021-11-19 13:30:05,311 INFO L226 Difference]: Without dead ends: 280 [2021-11-19 13:30:05,312 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 6.9s TimeCoverageRelationStatistics Valid=58, Invalid=157, Unknown=3, NotChecked=54, Total=272 [2021-11-19 13:30:05,313 INFO L933 BasicCegarLoop]: 210 mSDtfsCounter, 45 mSDsluCounter, 1150 mSDsCounter, 0 mSdLazyCounter, 330 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 1360 SdHoareTripleChecker+Invalid, 436 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 330 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 100 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-11-19 13:30:05,314 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [45 Valid, 1360 Invalid, 436 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 330 Invalid, 0 Unknown, 100 Unchecked, 1.0s Time] [2021-11-19 13:30:05,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 280 states. [2021-11-19 13:30:05,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 280 to 269. [2021-11-19 13:30:05,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 269 states, 180 states have (on average 1.7222222222222223) internal successors, (310), 256 states have internal predecessors, (310), 22 states have call successors, (22), 6 states have call predecessors, (22), 4 states have return successors, (7), 6 states have call predecessors, (7), 7 states have call successors, (7) [2021-11-19 13:30:05,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 269 states to 269 states and 339 transitions. [2021-11-19 13:30:05,329 INFO L78 Accepts]: Start accepts. Automaton has 269 states and 339 transitions. Word has length 10 [2021-11-19 13:30:05,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:30:05,330 INFO L470 AbstractCegarLoop]: Abstraction has 269 states and 339 transitions. [2021-11-19 13:30:05,330 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 9 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:30:05,331 INFO L276 IsEmpty]: Start isEmpty. Operand 269 states and 339 transitions. [2021-11-19 13:30:05,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-11-19 13:30:05,331 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:30:05,332 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:30:05,354 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca95623-7afe-470c-924d-ad61f3cdfb01/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-19 13:30:05,554 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca95623-7afe-470c-924d-ad61f3cdfb01/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:30:05,555 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting list_addErr3REQUIRES_VIOLATION === [val_from_nodeErr0REQUIRES_VIOLATION, val_from_nodeErr1REQUIRES_VIOLATION, failErr0ASSERT_VIOLATIONMEMORY_LEAK, inspectErr0REQUIRES_VIOLATION (and 67 more)] === [2021-11-19 13:30:05,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:30:05,556 INFO L85 PathProgramCache]: Analyzing trace with hash -1625645900, now seen corresponding path program 1 times [2021-11-19 13:30:05,556 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:30:05,556 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1152788342] [2021-11-19 13:30:05,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:30:05,557 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:30:05,557 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca95623-7afe-470c-924d-ad61f3cdfb01/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:30:05,558 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca95623-7afe-470c-924d-ad61f3cdfb01/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:30:05,559 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca95623-7afe-470c-924d-ad61f3cdfb01/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-19 13:30:05,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:30:05,669 INFO L263 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 24 conjunts are in the unsatisfiable core [2021-11-19 13:30:05,678 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:30:05,699 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 [2021-11-19 13:30:05,730 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 [2021-11-19 13:30:05,874 INFO L354 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2021-11-19 13:30:05,875 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 [2021-11-19 13:30:05,926 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-19 13:30:05,927 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 [2021-11-19 13:30:06,191 INFO L354 Elim1Store]: treesize reduction 336, result has 2.0 percent of original size [2021-11-19 13:30:06,191 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 4 case distinctions, treesize of input 116 treesize of output 71 [2021-11-19 13:30:06,288 INFO L354 Elim1Store]: treesize reduction 336, result has 2.0 percent of original size [2021-11-19 13:30:06,290 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 4 case distinctions, treesize of input 68 treesize of output 23 [2021-11-19 13:30:06,569 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 34 treesize of output 26 [2021-11-19 13:30:06,574 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 20 treesize of output 12 [2021-11-19 13:30:06,715 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 13:30:06,715 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:30:07,372 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:30:07,375 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 186 [2021-11-19 13:30:07,388 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:30:07,400 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 288 [2021-11-19 13:30:10,022 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_DerPreprocessor_7 (_ BitVec 32)) (v_DerPreprocessor_6 (_ BitVec 32)) (|ULTIMATE.start_gl_insert_~node~1#1.offset| (_ BitVec 32)) (v_DerPreprocessor_5 (_ BitVec 32)) (v_DerPreprocessor_10 (_ BitVec 32)) (v_DerPreprocessor_11 (_ BitVec 32)) (v_DerPreprocessor_12 (_ BitVec 32)) (v_DerPreprocessor_9 (_ BitVec 32)) (v_DerPreprocessor_8 (_ BitVec 32))) (let ((.cse0 (bvadd |ULTIMATE.start_gl_insert_~node~1#1.offset| (_ bv1 32))) (.cse1 (bvadd (_ bv2 32) |ULTIMATE.start_gl_insert_~node~1#1.offset|)) (.cse2 (bvadd (_ bv3 32) |ULTIMATE.start_gl_insert_~node~1#1.offset|))) (bvule (bvadd (_ bv8 32) (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_gl_insert_~node~1#1.base| (store (store (store (store (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_gl_insert_~node~1#1.base|) |ULTIMATE.start_gl_insert_~node~1#1.offset| v_DerPreprocessor_9) .cse0 v_DerPreprocessor_10) .cse1 v_DerPreprocessor_11) .cse2 v_DerPreprocessor_12)) |c_~#gl_list~0.base|) |c_~#gl_list~0.offset|)) (select |c_#length| (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_gl_insert_~node~1#1.base| (store (store (store (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_gl_insert_~node~1#1.base|) |ULTIMATE.start_gl_insert_~node~1#1.offset| v_DerPreprocessor_5) .cse0 v_DerPreprocessor_6) .cse1 v_DerPreprocessor_7) .cse2 v_DerPreprocessor_8)) |c_~#gl_list~0.base|) |c_~#gl_list~0.offset|))))) (forall ((|ULTIMATE.start_gl_insert_~node~1#1.offset| (_ BitVec 32)) (v_DerPreprocessor_10 (_ BitVec 32)) (v_DerPreprocessor_11 (_ BitVec 32)) (v_DerPreprocessor_12 (_ BitVec 32)) (v_DerPreprocessor_9 (_ BitVec 32))) (let ((.cse3 (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_gl_insert_~node~1#1.base| (store (store (store (store (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_gl_insert_~node~1#1.base|) |ULTIMATE.start_gl_insert_~node~1#1.offset| v_DerPreprocessor_9) (bvadd |ULTIMATE.start_gl_insert_~node~1#1.offset| (_ bv1 32)) v_DerPreprocessor_10) (bvadd (_ bv2 32) |ULTIMATE.start_gl_insert_~node~1#1.offset|) v_DerPreprocessor_11) (bvadd (_ bv3 32) |ULTIMATE.start_gl_insert_~node~1#1.offset|) v_DerPreprocessor_12)) |c_~#gl_list~0.base|) |c_~#gl_list~0.offset|))) (bvule (bvadd (_ bv4 32) .cse3) (bvadd (_ bv8 32) .cse3))))) is different from false [2021-11-19 13:30:12,321 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_gl_insert_~node~1#1.base_21| (_ BitVec 32))) (or (and (forall ((v_DerPreprocessor_7 (_ BitVec 32)) (v_DerPreprocessor_6 (_ BitVec 32)) (|ULTIMATE.start_gl_insert_~node~1#1.offset| (_ BitVec 32)) (v_DerPreprocessor_5 (_ BitVec 32)) (v_DerPreprocessor_10 (_ BitVec 32)) (v_DerPreprocessor_11 (_ BitVec 32)) (v_DerPreprocessor_12 (_ BitVec 32)) (v_DerPreprocessor_9 (_ BitVec 32)) (v_DerPreprocessor_8 (_ BitVec 32))) (let ((.cse0 (bvadd |ULTIMATE.start_gl_insert_~node~1#1.offset| (_ bv1 32))) (.cse1 (bvadd (_ bv2 32) |ULTIMATE.start_gl_insert_~node~1#1.offset|)) (.cse2 (bvadd (_ bv3 32) |ULTIMATE.start_gl_insert_~node~1#1.offset|))) (bvule (bvadd (_ bv8 32) (select (select (store |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_gl_insert_~node~1#1.base_21| (store (store (store (store (select |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_gl_insert_~node~1#1.base_21|) |ULTIMATE.start_gl_insert_~node~1#1.offset| v_DerPreprocessor_9) .cse0 v_DerPreprocessor_10) .cse1 v_DerPreprocessor_11) .cse2 v_DerPreprocessor_12)) |c_~#gl_list~0.base|) |c_~#gl_list~0.offset|)) (select (store |c_#length| |v_ULTIMATE.start_gl_insert_~node~1#1.base_21| (_ bv20 32)) (select (select (store |c_#memory_$Pointer$.base| |v_ULTIMATE.start_gl_insert_~node~1#1.base_21| (store (store (store (store (select |c_#memory_$Pointer$.base| |v_ULTIMATE.start_gl_insert_~node~1#1.base_21|) |ULTIMATE.start_gl_insert_~node~1#1.offset| v_DerPreprocessor_5) .cse0 v_DerPreprocessor_6) .cse1 v_DerPreprocessor_7) .cse2 v_DerPreprocessor_8)) |c_~#gl_list~0.base|) |c_~#gl_list~0.offset|))))) (forall ((|ULTIMATE.start_gl_insert_~node~1#1.offset| (_ BitVec 32)) (v_DerPreprocessor_10 (_ BitVec 32)) (v_DerPreprocessor_11 (_ BitVec 32)) (v_DerPreprocessor_12 (_ BitVec 32)) (v_DerPreprocessor_9 (_ BitVec 32))) (let ((.cse3 (select (select (store |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_gl_insert_~node~1#1.base_21| (store (store (store (store (select |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_gl_insert_~node~1#1.base_21|) |ULTIMATE.start_gl_insert_~node~1#1.offset| v_DerPreprocessor_9) (bvadd |ULTIMATE.start_gl_insert_~node~1#1.offset| (_ bv1 32)) v_DerPreprocessor_10) (bvadd (_ bv2 32) |ULTIMATE.start_gl_insert_~node~1#1.offset|) v_DerPreprocessor_11) (bvadd (_ bv3 32) |ULTIMATE.start_gl_insert_~node~1#1.offset|) v_DerPreprocessor_12)) |c_~#gl_list~0.base|) |c_~#gl_list~0.offset|))) (bvule (bvadd (_ bv4 32) .cse3) (bvadd (_ bv8 32) .cse3))))) (not (= (_ bv0 1) (bvneg (select |c_#valid| |v_ULTIMATE.start_gl_insert_~node~1#1.base_21|)))))) is different from false [2021-11-19 13:30:12,571 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 13:30:12,572 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:30:12,572 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1152788342] [2021-11-19 13:30:12,572 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1152788342] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:30:12,572 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:30:12,572 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 14 [2021-11-19 13:30:12,572 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1817529104] [2021-11-19 13:30:12,573 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:30:12,573 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2021-11-19 13:30:12,573 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:30:12,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-11-19 13:30:12,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=151, Unknown=2, NotChecked=50, Total=240 [2021-11-19 13:30:12,574 INFO L87 Difference]: Start difference. First operand 269 states and 339 transitions. Second operand has 16 states, 13 states have (on average 1.3846153846153846) internal successors, (18), 13 states have internal predecessors, (18), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:30:20,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:30:20,334 INFO L93 Difference]: Finished difference Result 269 states and 338 transitions. [2021-11-19 13:30:20,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-19 13:30:20,335 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 13 states have (on average 1.3846153846153846) internal successors, (18), 13 states have internal predecessors, (18), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2021-11-19 13:30:20,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:30:20,337 INFO L225 Difference]: With dead ends: 269 [2021-11-19 13:30:20,338 INFO L226 Difference]: Without dead ends: 269 [2021-11-19 13:30:20,338 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 10.3s TimeCoverageRelationStatistics Valid=50, Invalid=196, Unknown=2, NotChecked=58, Total=306 [2021-11-19 13:30:20,339 INFO L933 BasicCegarLoop]: 217 mSDtfsCounter, 4 mSDsluCounter, 1197 mSDsCounter, 0 mSdLazyCounter, 336 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 1414 SdHoareTripleChecker+Invalid, 592 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 336 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 249 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2021-11-19 13:30:20,340 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 1414 Invalid, 592 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 336 Invalid, 0 Unknown, 249 Unchecked, 2.4s Time] [2021-11-19 13:30:20,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 269 states. [2021-11-19 13:30:20,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 269 to 269. [2021-11-19 13:30:20,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 269 states, 180 states have (on average 1.7166666666666666) internal successors, (309), 256 states have internal predecessors, (309), 22 states have call successors, (22), 6 states have call predecessors, (22), 4 states have return successors, (7), 6 states have call predecessors, (7), 7 states have call successors, (7) [2021-11-19 13:30:20,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 269 states to 269 states and 338 transitions. [2021-11-19 13:30:20,355 INFO L78 Accepts]: Start accepts. Automaton has 269 states and 338 transitions. Word has length 10 [2021-11-19 13:30:20,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:30:20,356 INFO L470 AbstractCegarLoop]: Abstraction has 269 states and 338 transitions. [2021-11-19 13:30:20,356 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 13 states have (on average 1.3846153846153846) internal successors, (18), 13 states have internal predecessors, (18), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:30:20,356 INFO L276 IsEmpty]: Start isEmpty. Operand 269 states and 338 transitions. [2021-11-19 13:30:20,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-19 13:30:20,357 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:30:20,357 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:30:20,373 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca95623-7afe-470c-924d-ad61f3cdfb01/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-19 13:30:20,565 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca95623-7afe-470c-924d-ad61f3cdfb01/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:30:20,566 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting list_addErr4REQUIRES_VIOLATION === [val_from_nodeErr0REQUIRES_VIOLATION, val_from_nodeErr1REQUIRES_VIOLATION, failErr0ASSERT_VIOLATIONMEMORY_LEAK, inspectErr0REQUIRES_VIOLATION (and 67 more)] === [2021-11-19 13:30:20,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:30:20,567 INFO L85 PathProgramCache]: Analyzing trace with hash 1144584946, now seen corresponding path program 1 times [2021-11-19 13:30:20,567 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:30:20,567 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [303153834] [2021-11-19 13:30:20,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:30:20,568 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:30:20,568 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca95623-7afe-470c-924d-ad61f3cdfb01/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:30:20,569 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca95623-7afe-470c-924d-ad61f3cdfb01/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:30:20,570 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca95623-7afe-470c-924d-ad61f3cdfb01/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-19 13:30:20,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:30:20,655 INFO L263 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-19 13:30:20,656 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:30:20,672 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 [2021-11-19 13:30:20,766 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 13:30:20,766 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:30:20,843 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 13:30:20,844 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:30:20,844 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [303153834] [2021-11-19 13:30:20,844 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [303153834] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:30:20,844 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:30:20,844 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-11-19 13:30:20,845 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2045083377] [2021-11-19 13:30:20,845 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:30:20,845 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-19 13:30:20,845 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:30:20,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-19 13:30:20,846 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-19 13:30:20,846 INFO L87 Difference]: Start difference. First operand 269 states and 338 transitions. Second operand has 6 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:30:21,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:30:21,939 INFO L93 Difference]: Finished difference Result 305 states and 373 transitions. [2021-11-19 13:30:21,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-19 13:30:21,940 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2021-11-19 13:30:21,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:30:21,943 INFO L225 Difference]: With dead ends: 305 [2021-11-19 13:30:21,943 INFO L226 Difference]: Without dead ends: 305 [2021-11-19 13:30:21,944 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 13 SyntacticMatches, 3 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2021-11-19 13:30:21,945 INFO L933 BasicCegarLoop]: 184 mSDtfsCounter, 113 mSDsluCounter, 521 mSDsCounter, 0 mSdLazyCounter, 351 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 705 SdHoareTripleChecker+Invalid, 354 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 351 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-11-19 13:30:21,945 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [119 Valid, 705 Invalid, 354 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 351 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2021-11-19 13:30:21,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 305 states. [2021-11-19 13:30:21,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 305 to 278. [2021-11-19 13:30:21,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 278 states, 189 states have (on average 1.7195767195767195) internal successors, (325), 264 states have internal predecessors, (325), 22 states have call successors, (22), 7 states have call predecessors, (22), 5 states have return successors, (7), 6 states have call predecessors, (7), 7 states have call successors, (7) [2021-11-19 13:30:21,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 278 states and 354 transitions. [2021-11-19 13:30:21,963 INFO L78 Accepts]: Start accepts. Automaton has 278 states and 354 transitions. Word has length 11 [2021-11-19 13:30:21,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:30:21,964 INFO L470 AbstractCegarLoop]: Abstraction has 278 states and 354 transitions. [2021-11-19 13:30:21,964 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:30:21,964 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states and 354 transitions. [2021-11-19 13:30:21,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-19 13:30:21,965 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:30:21,966 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:30:21,999 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca95623-7afe-470c-924d-ad61f3cdfb01/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-11-19 13:30:22,188 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca95623-7afe-470c-924d-ad61f3cdfb01/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:30:22,192 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting list_addErr5REQUIRES_VIOLATION === [val_from_nodeErr0REQUIRES_VIOLATION, val_from_nodeErr1REQUIRES_VIOLATION, failErr0ASSERT_VIOLATIONMEMORY_LEAK, inspectErr0REQUIRES_VIOLATION (and 67 more)] === [2021-11-19 13:30:22,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:30:22,192 INFO L85 PathProgramCache]: Analyzing trace with hash 1144584947, now seen corresponding path program 1 times [2021-11-19 13:30:22,193 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:30:22,193 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [983699113] [2021-11-19 13:30:22,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:30:22,193 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:30:22,193 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca95623-7afe-470c-924d-ad61f3cdfb01/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:30:22,194 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca95623-7afe-470c-924d-ad61f3cdfb01/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:30:22,197 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca95623-7afe-470c-924d-ad61f3cdfb01/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-11-19 13:30:22,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:30:22,283 INFO L263 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-19 13:30:22,284 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:30:22,297 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 [2021-11-19 13:30:22,471 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 13:30:22,472 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:30:22,913 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 13:30:22,913 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:30:22,913 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [983699113] [2021-11-19 13:30:22,913 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [983699113] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:30:22,913 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:30:22,913 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 9 [2021-11-19 13:30:22,914 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1514635865] [2021-11-19 13:30:22,914 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:30:22,914 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-19 13:30:22,914 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:30:22,915 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-19 13:30:22,915 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2021-11-19 13:30:22,915 INFO L87 Difference]: Start difference. First operand 278 states and 354 transitions. Second operand has 10 states, 9 states have (on average 2.0) internal successors, (18), 8 states have internal predecessors, (18), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:30:24,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:30:24,914 INFO L93 Difference]: Finished difference Result 284 states and 352 transitions. [2021-11-19 13:30:24,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-19 13:30:24,916 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.0) internal successors, (18), 8 states have internal predecessors, (18), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2021-11-19 13:30:24,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:30:24,918 INFO L225 Difference]: With dead ends: 284 [2021-11-19 13:30:24,918 INFO L226 Difference]: Without dead ends: 284 [2021-11-19 13:30:24,919 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2021-11-19 13:30:24,919 INFO L933 BasicCegarLoop]: 190 mSDtfsCounter, 209 mSDsluCounter, 534 mSDsCounter, 0 mSdLazyCounter, 321 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 215 SdHoareTripleChecker+Valid, 724 SdHoareTripleChecker+Invalid, 329 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 321 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2021-11-19 13:30:24,920 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [215 Valid, 724 Invalid, 329 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 321 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2021-11-19 13:30:24,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 284 states. [2021-11-19 13:30:24,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 284 to 278. [2021-11-19 13:30:24,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 278 states, 189 states have (on average 1.708994708994709) internal successors, (323), 264 states have internal predecessors, (323), 22 states have call successors, (22), 7 states have call predecessors, (22), 5 states have return successors, (7), 6 states have call predecessors, (7), 7 states have call successors, (7) [2021-11-19 13:30:24,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 278 states and 352 transitions. [2021-11-19 13:30:24,942 INFO L78 Accepts]: Start accepts. Automaton has 278 states and 352 transitions. Word has length 11 [2021-11-19 13:30:24,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:30:24,942 INFO L470 AbstractCegarLoop]: Abstraction has 278 states and 352 transitions. [2021-11-19 13:30:24,943 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.0) internal successors, (18), 8 states have internal predecessors, (18), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:30:24,943 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states and 352 transitions. [2021-11-19 13:30:24,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-11-19 13:30:24,943 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:30:24,944 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:30:24,961 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca95623-7afe-470c-924d-ad61f3cdfb01/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-11-19 13:30:25,156 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca95623-7afe-470c-924d-ad61f3cdfb01/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:30:25,157 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting list_addErr8REQUIRES_VIOLATION === [val_from_nodeErr0REQUIRES_VIOLATION, val_from_nodeErr1REQUIRES_VIOLATION, failErr0ASSERT_VIOLATIONMEMORY_LEAK, inspectErr0REQUIRES_VIOLATION (and 67 more)] === [2021-11-19 13:30:25,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:30:25,157 INFO L85 PathProgramCache]: Analyzing trace with hash 434515829, now seen corresponding path program 1 times [2021-11-19 13:30:25,158 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:30:25,158 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1571705850] [2021-11-19 13:30:25,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:30:25,158 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:30:25,158 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca95623-7afe-470c-924d-ad61f3cdfb01/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:30:25,159 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca95623-7afe-470c-924d-ad61f3cdfb01/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:30:25,162 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca95623-7afe-470c-924d-ad61f3cdfb01/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-11-19 13:30:25,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:30:25,235 INFO L263 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 13:30:25,239 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:30:25,291 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 13:30:25,291 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:30:25,327 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 13:30:25,327 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:30:25,328 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1571705850] [2021-11-19 13:30:25,328 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1571705850] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:30:25,328 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:30:25,328 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-19 13:30:25,328 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [548306658] [2021-11-19 13:30:25,328 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:30:25,328 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 13:30:25,329 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:30:25,329 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 13:30:25,329 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-19 13:30:25,329 INFO L87 Difference]: Start difference. First operand 278 states and 352 transitions. Second operand has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:30:25,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:30:25,723 INFO L93 Difference]: Finished difference Result 277 states and 350 transitions. [2021-11-19 13:30:25,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 13:30:25,724 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2021-11-19 13:30:25,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:30:25,731 INFO L225 Difference]: With dead ends: 277 [2021-11-19 13:30:25,731 INFO L226 Difference]: Without dead ends: 277 [2021-11-19 13:30:25,732 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 21 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-19 13:30:25,733 INFO L933 BasicCegarLoop]: 214 mSDtfsCounter, 22 mSDsluCounter, 290 mSDsCounter, 0 mSdLazyCounter, 135 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 504 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-11-19 13:30:25,733 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [22 Valid, 504 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 135 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-11-19 13:30:25,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 277 states. [2021-11-19 13:30:25,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 277 to 277. [2021-11-19 13:30:25,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 277 states, 189 states have (on average 1.6984126984126984) internal successors, (321), 263 states have internal predecessors, (321), 22 states have call successors, (22), 7 states have call predecessors, (22), 5 states have return successors, (7), 6 states have call predecessors, (7), 7 states have call successors, (7) [2021-11-19 13:30:25,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 277 states to 277 states and 350 transitions. [2021-11-19 13:30:25,749 INFO L78 Accepts]: Start accepts. Automaton has 277 states and 350 transitions. Word has length 13 [2021-11-19 13:30:25,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:30:25,750 INFO L470 AbstractCegarLoop]: Abstraction has 277 states and 350 transitions. [2021-11-19 13:30:25,750 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:30:25,750 INFO L276 IsEmpty]: Start isEmpty. Operand 277 states and 350 transitions. [2021-11-19 13:30:25,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-11-19 13:30:25,751 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:30:25,751 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:30:25,773 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca95623-7afe-470c-924d-ad61f3cdfb01/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-11-19 13:30:25,966 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca95623-7afe-470c-924d-ad61f3cdfb01/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:30:25,966 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting list_addErr9REQUIRES_VIOLATION === [val_from_nodeErr0REQUIRES_VIOLATION, val_from_nodeErr1REQUIRES_VIOLATION, failErr0ASSERT_VIOLATIONMEMORY_LEAK, inspectErr0REQUIRES_VIOLATION (and 67 more)] === [2021-11-19 13:30:25,967 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:30:25,967 INFO L85 PathProgramCache]: Analyzing trace with hash 434515830, now seen corresponding path program 1 times [2021-11-19 13:30:25,967 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:30:25,967 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [774860493] [2021-11-19 13:30:25,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:30:25,968 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:30:25,968 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca95623-7afe-470c-924d-ad61f3cdfb01/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:30:25,969 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca95623-7afe-470c-924d-ad61f3cdfb01/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:30:25,971 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca95623-7afe-470c-924d-ad61f3cdfb01/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-11-19 13:30:26,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:30:26,066 INFO L263 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-19 13:30:26,068 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:30:26,232 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 13:30:26,232 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:30:26,433 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 [2021-11-19 13:30:26,626 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 13:30:26,626 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:30:26,627 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [774860493] [2021-11-19 13:30:26,627 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [774860493] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:30:26,627 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:30:26,627 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 10 [2021-11-19 13:30:26,627 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [714159523] [2021-11-19 13:30:26,627 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:30:26,628 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-19 13:30:26,628 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:30:26,628 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-19 13:30:26,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2021-11-19 13:30:26,629 INFO L87 Difference]: Start difference. First operand 277 states and 350 transitions. Second operand has 12 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 9 states have internal predecessors, (24), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:30:28,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:30:28,097 INFO L93 Difference]: Finished difference Result 280 states and 348 transitions. [2021-11-19 13:30:28,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-19 13:30:28,098 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 9 states have internal predecessors, (24), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2021-11-19 13:30:28,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:30:28,101 INFO L225 Difference]: With dead ends: 280 [2021-11-19 13:30:28,101 INFO L226 Difference]: Without dead ends: 280 [2021-11-19 13:30:28,101 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=88, Invalid=218, Unknown=0, NotChecked=0, Total=306 [2021-11-19 13:30:28,102 INFO L933 BasicCegarLoop]: 201 mSDtfsCounter, 314 mSDsluCounter, 704 mSDsCounter, 0 mSdLazyCounter, 206 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 316 SdHoareTripleChecker+Valid, 905 SdHoareTripleChecker+Invalid, 208 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 206 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2021-11-19 13:30:28,102 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [316 Valid, 905 Invalid, 208 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 206 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2021-11-19 13:30:28,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 280 states. [2021-11-19 13:30:28,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 280 to 276. [2021-11-19 13:30:28,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 276 states, 189 states have (on average 1.687830687830688) internal successors, (319), 262 states have internal predecessors, (319), 22 states have call successors, (22), 7 states have call predecessors, (22), 5 states have return successors, (7), 6 states have call predecessors, (7), 7 states have call successors, (7) [2021-11-19 13:30:28,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 276 states to 276 states and 348 transitions. [2021-11-19 13:30:28,114 INFO L78 Accepts]: Start accepts. Automaton has 276 states and 348 transitions. Word has length 13 [2021-11-19 13:30:28,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:30:28,114 INFO L470 AbstractCegarLoop]: Abstraction has 276 states and 348 transitions. [2021-11-19 13:30:28,115 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 9 states have internal predecessors, (24), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:30:28,115 INFO L276 IsEmpty]: Start isEmpty. Operand 276 states and 348 transitions. [2021-11-19 13:30:28,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-19 13:30:28,116 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:30:28,116 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:30:28,139 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca95623-7afe-470c-924d-ad61f3cdfb01/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2021-11-19 13:30:28,329 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca95623-7afe-470c-924d-ad61f3cdfb01/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:30:28,329 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting failErr0ASSERT_VIOLATIONMEMORY_LEAK === [val_from_nodeErr0REQUIRES_VIOLATION, val_from_nodeErr1REQUIRES_VIOLATION, failErr0ASSERT_VIOLATIONMEMORY_LEAK, inspectErr0REQUIRES_VIOLATION (and 67 more)] === [2021-11-19 13:30:28,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:30:28,329 INFO L85 PathProgramCache]: Analyzing trace with hash 853908818, now seen corresponding path program 1 times [2021-11-19 13:30:28,330 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:30:28,330 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1397263541] [2021-11-19 13:30:28,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:30:28,330 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:30:28,330 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca95623-7afe-470c-924d-ad61f3cdfb01/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:30:28,331 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca95623-7afe-470c-924d-ad61f3cdfb01/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:30:28,332 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca95623-7afe-470c-924d-ad61f3cdfb01/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2021-11-19 13:30:28,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:30:28,416 INFO L263 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 13:30:28,417 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:30:28,604 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 13:30:28,604 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:30:28,714 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 13:30:28,714 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:30:28,714 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1397263541] [2021-11-19 13:30:28,714 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1397263541] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:30:28,714 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:30:28,714 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 5] imperfect sequences [] total 5 [2021-11-19 13:30:28,715 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [419129423] [2021-11-19 13:30:28,715 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:30:28,715 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 13:30:28,715 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:30:28,716 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 13:30:28,716 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-19 13:30:28,716 INFO L87 Difference]: Start difference. First operand 276 states and 348 transitions. Second operand has 5 states, 5 states have (on average 6.4) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-19 13:30:29,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:30:29,073 INFO L93 Difference]: Finished difference Result 275 states and 345 transitions. [2021-11-19 13:30:29,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-19 13:30:29,074 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 27 [2021-11-19 13:30:29,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:30:29,077 INFO L225 Difference]: With dead ends: 275 [2021-11-19 13:30:29,077 INFO L226 Difference]: Without dead ends: 275 [2021-11-19 13:30:29,078 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-19 13:30:29,079 INFO L933 BasicCegarLoop]: 191 mSDtfsCounter, 299 mSDsluCounter, 259 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 301 SdHoareTripleChecker+Valid, 450 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-19 13:30:29,079 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [301 Valid, 450 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-19 13:30:29,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 275 states. [2021-11-19 13:30:29,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 275 to 275. [2021-11-19 13:30:29,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 275 states, 189 states have (on average 1.6772486772486772) internal successors, (317), 261 states have internal predecessors, (317), 21 states have call successors, (21), 7 states have call predecessors, (21), 5 states have return successors, (7), 6 states have call predecessors, (7), 7 states have call successors, (7) [2021-11-19 13:30:29,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 275 states to 275 states and 345 transitions. [2021-11-19 13:30:29,091 INFO L78 Accepts]: Start accepts. Automaton has 275 states and 345 transitions. Word has length 27 [2021-11-19 13:30:29,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:30:29,092 INFO L470 AbstractCegarLoop]: Abstraction has 275 states and 345 transitions. [2021-11-19 13:30:29,092 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-19 13:30:29,092 INFO L276 IsEmpty]: Start isEmpty. Operand 275 states and 345 transitions. [2021-11-19 13:30:29,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-19 13:30:29,093 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:30:29,093 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:30:29,111 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca95623-7afe-470c-924d-ad61f3cdfb01/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2021-11-19 13:30:29,294 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca95623-7afe-470c-924d-ad61f3cdfb01/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:30:29,294 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting inspectErr0REQUIRES_VIOLATION === [val_from_nodeErr0REQUIRES_VIOLATION, val_from_nodeErr1REQUIRES_VIOLATION, failErr0ASSERT_VIOLATIONMEMORY_LEAK, inspectErr0REQUIRES_VIOLATION (and 67 more)] === [2021-11-19 13:30:29,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:30:29,295 INFO L85 PathProgramCache]: Analyzing trace with hash 853896473, now seen corresponding path program 1 times [2021-11-19 13:30:29,295 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:30:29,295 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1655308756] [2021-11-19 13:30:29,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:30:29,296 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:30:29,296 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca95623-7afe-470c-924d-ad61f3cdfb01/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:30:29,297 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca95623-7afe-470c-924d-ad61f3cdfb01/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:30:29,299 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca95623-7afe-470c-924d-ad61f3cdfb01/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2021-11-19 13:30:29,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:30:29,420 INFO L263 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-19 13:30:29,422 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:30:29,584 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 13:30:29,585 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:30:29,779 INFO L354 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2021-11-19 13:30:29,780 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 20 [2021-11-19 13:30:29,798 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 13:30:29,798 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:30:29,798 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1655308756] [2021-11-19 13:30:29,798 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1655308756] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:30:29,798 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:30:29,799 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 6 [2021-11-19 13:30:29,799 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1608803671] [2021-11-19 13:30:29,799 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:30:29,799 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-19 13:30:29,800 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:30:29,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-19 13:30:29,800 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-19 13:30:29,800 INFO L87 Difference]: Start difference. First operand 275 states and 345 transitions. Second operand has 7 states, 6 states have (on average 4.0) internal successors, (24), 6 states have internal predecessors, (24), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-19 13:30:30,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:30:30,962 INFO L93 Difference]: Finished difference Result 270 states and 332 transitions. [2021-11-19 13:30:30,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-19 13:30:30,963 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 4.0) internal successors, (24), 6 states have internal predecessors, (24), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 27 [2021-11-19 13:30:30,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:30:30,966 INFO L225 Difference]: With dead ends: 270 [2021-11-19 13:30:30,966 INFO L226 Difference]: Without dead ends: 270 [2021-11-19 13:30:30,967 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 43 SyntacticMatches, 4 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2021-11-19 13:30:30,968 INFO L933 BasicCegarLoop]: 120 mSDtfsCounter, 382 mSDsluCounter, 301 mSDsCounter, 0 mSdLazyCounter, 433 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 385 SdHoareTripleChecker+Valid, 421 SdHoareTripleChecker+Invalid, 462 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 433 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-11-19 13:30:30,968 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [385 Valid, 421 Invalid, 462 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 433 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2021-11-19 13:30:30,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 270 states. [2021-11-19 13:30:30,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 270 to 269. [2021-11-19 13:30:30,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 269 states, 190 states have (on average 1.6) internal successors, (304), 255 states have internal predecessors, (304), 21 states have call successors, (21), 7 states have call predecessors, (21), 5 states have return successors, (7), 6 states have call predecessors, (7), 7 states have call successors, (7) [2021-11-19 13:30:30,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 269 states to 269 states and 332 transitions. [2021-11-19 13:30:30,980 INFO L78 Accepts]: Start accepts. Automaton has 269 states and 332 transitions. Word has length 27 [2021-11-19 13:30:30,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:30:30,981 INFO L470 AbstractCegarLoop]: Abstraction has 269 states and 332 transitions. [2021-11-19 13:30:30,981 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 4.0) internal successors, (24), 6 states have internal predecessors, (24), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-19 13:30:30,981 INFO L276 IsEmpty]: Start isEmpty. Operand 269 states and 332 transitions. [2021-11-19 13:30:30,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-19 13:30:30,983 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:30:30,983 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:30:31,010 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca95623-7afe-470c-924d-ad61f3cdfb01/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2021-11-19 13:30:31,197 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca95623-7afe-470c-924d-ad61f3cdfb01/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:30:31,198 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting inspectErr1REQUIRES_VIOLATION === [val_from_nodeErr0REQUIRES_VIOLATION, val_from_nodeErr1REQUIRES_VIOLATION, failErr0ASSERT_VIOLATIONMEMORY_LEAK, inspectErr0REQUIRES_VIOLATION (and 67 more)] === [2021-11-19 13:30:31,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:30:31,198 INFO L85 PathProgramCache]: Analyzing trace with hash 853896474, now seen corresponding path program 1 times [2021-11-19 13:30:31,199 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:30:31,199 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1633903292] [2021-11-19 13:30:31,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:30:31,199 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:30:31,200 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca95623-7afe-470c-924d-ad61f3cdfb01/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:30:31,201 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca95623-7afe-470c-924d-ad61f3cdfb01/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:30:31,244 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca95623-7afe-470c-924d-ad61f3cdfb01/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2021-11-19 13:30:31,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:30:31,353 INFO L263 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-19 13:30:31,355 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:30:31,778 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 13:30:31,779 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:30:32,264 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 [2021-11-19 13:30:32,581 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:30:32,582 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 20 [2021-11-19 13:30:32,901 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 13:30:32,901 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:30:32,901 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1633903292] [2021-11-19 13:30:32,901 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1633903292] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:30:32,901 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:30:32,902 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 7] imperfect sequences [] total 13 [2021-11-19 13:30:32,902 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [190973551] [2021-11-19 13:30:32,902 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:30:32,902 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-11-19 13:30:32,903 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:30:32,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-11-19 13:30:32,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2021-11-19 13:30:32,904 INFO L87 Difference]: Start difference. First operand 269 states and 332 transitions. Second operand has 14 states, 13 states have (on average 3.6923076923076925) internal successors, (48), 11 states have internal predecessors, (48), 4 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-19 13:30:36,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:30:36,167 INFO L93 Difference]: Finished difference Result 267 states and 327 transitions. [2021-11-19 13:30:36,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-19 13:30:36,169 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 3.6923076923076925) internal successors, (48), 11 states have internal predecessors, (48), 4 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 27 [2021-11-19 13:30:36,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:30:36,171 INFO L225 Difference]: With dead ends: 267 [2021-11-19 13:30:36,171 INFO L226 Difference]: Without dead ends: 267 [2021-11-19 13:30:36,171 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=96, Invalid=284, Unknown=0, NotChecked=0, Total=380 [2021-11-19 13:30:36,174 INFO L933 BasicCegarLoop]: 122 mSDtfsCounter, 557 mSDsluCounter, 618 mSDsCounter, 0 mSdLazyCounter, 797 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 560 SdHoareTripleChecker+Valid, 740 SdHoareTripleChecker+Invalid, 845 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 797 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2021-11-19 13:30:36,175 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [560 Valid, 740 Invalid, 845 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 797 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2021-11-19 13:30:36,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 267 states. [2021-11-19 13:30:36,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 267 to 264. [2021-11-19 13:30:36,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 264 states, 188 states have (on average 1.5797872340425532) internal successors, (297), 250 states have internal predecessors, (297), 21 states have call successors, (21), 7 states have call predecessors, (21), 5 states have return successors, (7), 6 states have call predecessors, (7), 7 states have call successors, (7) [2021-11-19 13:30:36,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 264 states to 264 states and 325 transitions. [2021-11-19 13:30:36,195 INFO L78 Accepts]: Start accepts. Automaton has 264 states and 325 transitions. Word has length 27 [2021-11-19 13:30:36,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:30:36,196 INFO L470 AbstractCegarLoop]: Abstraction has 264 states and 325 transitions. [2021-11-19 13:30:36,196 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 3.6923076923076925) internal successors, (48), 11 states have internal predecessors, (48), 4 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-19 13:30:36,196 INFO L276 IsEmpty]: Start isEmpty. Operand 264 states and 325 transitions. [2021-11-19 13:30:36,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-19 13:30:36,200 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:30:36,201 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:30:36,218 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca95623-7afe-470c-924d-ad61f3cdfb01/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2021-11-19 13:30:36,413 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca95623-7afe-470c-924d-ad61f3cdfb01/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:30:36,413 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting list_addErr1REQUIRES_VIOLATION === [val_from_nodeErr0REQUIRES_VIOLATION, val_from_nodeErr1REQUIRES_VIOLATION, failErr0ASSERT_VIOLATIONMEMORY_LEAK, inspectErr0REQUIRES_VIOLATION (and 67 more)] === [2021-11-19 13:30:36,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:30:36,413 INFO L85 PathProgramCache]: Analyzing trace with hash 1393722671, now seen corresponding path program 1 times [2021-11-19 13:30:36,414 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:30:36,414 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [984822194] [2021-11-19 13:30:36,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:30:36,414 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:30:36,414 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca95623-7afe-470c-924d-ad61f3cdfb01/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:30:36,415 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca95623-7afe-470c-924d-ad61f3cdfb01/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:30:36,417 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca95623-7afe-470c-924d-ad61f3cdfb01/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2021-11-19 13:30:36,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:30:36,688 INFO L263 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 18 conjunts are in the unsatisfiable core [2021-11-19 13:30:36,691 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:30:37,202 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-11-19 13:30:37,203 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 37 treesize of output 39 [2021-11-19 13:30:37,222 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-19 13:30:37,222 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 36 treesize of output 36 [2021-11-19 13:30:37,518 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 13:30:37,518 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:30:42,468 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 54 treesize of output 50 [2021-11-19 13:30:42,498 INFO L354 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2021-11-19 13:30:42,498 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 50 treesize of output 49 [2021-11-19 13:30:42,837 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:30:42,837 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 38 treesize of output 42 [2021-11-19 13:30:44,078 INFO L354 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2021-11-19 13:30:44,078 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 43 treesize of output 42 [2021-11-19 13:30:44,395 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 13:30:44,396 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:30:44,396 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [984822194] [2021-11-19 13:30:44,396 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [984822194] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 13:30:44,396 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1327313265] [2021-11-19 13:30:44,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:30:44,397 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-19 13:30:44,397 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca95623-7afe-470c-924d-ad61f3cdfb01/bin/utaipan-UbGMyvGFUs/cvc4 [2021-11-19 13:30:44,405 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca95623-7afe-470c-924d-ad61f3cdfb01/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-19 13:30:44,426 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca95623-7afe-470c-924d-ad61f3cdfb01/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (17)] Waiting until timeout for monitored process [2021-11-19 13:30:44,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:30:44,925 INFO L263 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 19 conjunts are in the unsatisfiable core [2021-11-19 13:30:44,927 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:30:44,953 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 7 treesize of output 3 [2021-11-19 13:30:45,935 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-11-19 13:30:45,935 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 20 treesize of output 22 [2021-11-19 13:30:46,692 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 13:30:46,692 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:30:47,649 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 41 treesize of output 37 [2021-11-19 13:30:54,779 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:30:54,780 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 34 treesize of output 38 [2021-11-19 13:30:56,212 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 13:30:56,213 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1327313265] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 13:30:56,213 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1782507217] [2021-11-19 13:30:56,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:30:56,213 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 13:30:56,214 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca95623-7afe-470c-924d-ad61f3cdfb01/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 13:30:56,215 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca95623-7afe-470c-924d-ad61f3cdfb01/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 13:30:56,216 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca95623-7afe-470c-924d-ad61f3cdfb01/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2021-11-19 13:30:56,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:30:56,340 INFO L263 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 15 conjunts are in the unsatisfiable core [2021-11-19 13:30:56,342 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:30:56,355 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 [2021-11-19 13:30:56,366 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 [2021-11-19 13:30:56,546 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-11-19 13:30:56,546 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 32 treesize of output 34 [2021-11-19 13:30:56,586 INFO L354 Elim1Store]: treesize reduction 20, result has 28.6 percent of original size [2021-11-19 13:30:56,587 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 2 case distinctions, treesize of input 31 treesize of output 34 [2021-11-19 13:30:59,567 INFO L354 Elim1Store]: treesize reduction 36, result has 23.4 percent of original size [2021-11-19 13:30:59,567 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 3 case distinctions, treesize of input 53 treesize of output 58 [2021-11-19 13:30:59,596 INFO L354 Elim1Store]: treesize reduction 21, result has 16.0 percent of original size [2021-11-19 13:30:59,596 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 52 treesize of output 50 [2021-11-19 13:31:00,312 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 13:31:00,313 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:31:09,744 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 13:31:09,745 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1782507217] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 13:31:09,745 INFO L186 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2021-11-19 13:31:09,745 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 10, 8, 9, 5, 6] total 38 [2021-11-19 13:31:09,746 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [627248567] [2021-11-19 13:31:09,746 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2021-11-19 13:31:09,746 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 39 states [2021-11-19 13:31:09,747 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:31:09,747 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2021-11-19 13:31:09,748 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=209, Invalid=1266, Unknown=7, NotChecked=0, Total=1482 [2021-11-19 13:31:09,749 INFO L87 Difference]: Start difference. First operand 264 states and 325 transitions. Second operand has 39 states, 38 states have (on average 3.4210526315789473) internal successors, (130), 35 states have internal predecessors, (130), 10 states have call successors, (10), 8 states have call predecessors, (10), 6 states have return successors, (6), 5 states have call predecessors, (6), 6 states have call successors, (6) [2021-11-19 13:31:38,528 WARN L227 SmtUtils]: Spent 22.28s on a formula simplification that was a NOOP. DAG size: 43 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-19 13:31:38,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:31:38,551 INFO L93 Difference]: Finished difference Result 403 states and 482 transitions. [2021-11-19 13:31:38,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-11-19 13:31:38,552 INFO L78 Accepts]: Start accepts. Automaton has has 39 states, 38 states have (on average 3.4210526315789473) internal successors, (130), 35 states have internal predecessors, (130), 10 states have call successors, (10), 8 states have call predecessors, (10), 6 states have return successors, (6), 5 states have call predecessors, (6), 6 states have call successors, (6) Word has length 27 [2021-11-19 13:31:38,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:31:38,556 INFO L225 Difference]: With dead ends: 403 [2021-11-19 13:31:38,556 INFO L226 Difference]: Without dead ends: 403 [2021-11-19 13:31:38,558 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 175 GetRequests, 104 SyntacticMatches, 20 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1300 ImplicationChecksByTransitivity, 52.3s TimeCoverageRelationStatistics Valid=496, Invalid=2253, Unknown=7, NotChecked=0, Total=2756 [2021-11-19 13:31:38,559 INFO L933 BasicCegarLoop]: 299 mSDtfsCounter, 209 mSDsluCounter, 3463 mSDsCounter, 0 mSdLazyCounter, 329 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 209 SdHoareTripleChecker+Valid, 3762 SdHoareTripleChecker+Invalid, 1116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 329 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 782 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2021-11-19 13:31:38,560 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [209 Valid, 3762 Invalid, 1116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 329 Invalid, 0 Unknown, 782 Unchecked, 1.3s Time] [2021-11-19 13:31:38,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 403 states. [2021-11-19 13:31:38,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 403 to 264. [2021-11-19 13:31:38,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 264 states, 188 states have (on average 1.574468085106383) internal successors, (296), 250 states have internal predecessors, (296), 21 states have call successors, (21), 7 states have call predecessors, (21), 5 states have return successors, (7), 6 states have call predecessors, (7), 7 states have call successors, (7) [2021-11-19 13:31:38,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 264 states to 264 states and 324 transitions. [2021-11-19 13:31:38,575 INFO L78 Accepts]: Start accepts. Automaton has 264 states and 324 transitions. Word has length 27 [2021-11-19 13:31:38,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:31:38,576 INFO L470 AbstractCegarLoop]: Abstraction has 264 states and 324 transitions. [2021-11-19 13:31:38,576 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 39 states, 38 states have (on average 3.4210526315789473) internal successors, (130), 35 states have internal predecessors, (130), 10 states have call successors, (10), 8 states have call predecessors, (10), 6 states have return successors, (6), 5 states have call predecessors, (6), 6 states have call successors, (6) [2021-11-19 13:31:38,577 INFO L276 IsEmpty]: Start isEmpty. Operand 264 states and 324 transitions. [2021-11-19 13:31:38,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-11-19 13:31:38,578 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:31:38,578 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:31:38,599 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca95623-7afe-470c-924d-ad61f3cdfb01/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (16)] Ended with exit code 0 [2021-11-19 13:31:38,842 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca95623-7afe-470c-924d-ad61f3cdfb01/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2021-11-19 13:31:38,999 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca95623-7afe-470c-924d-ad61f3cdfb01/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (17)] Ended with exit code 0 [2021-11-19 13:31:39,191 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca95623-7afe-470c-924d-ad61f3cdfb01/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3,18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca95623-7afe-470c-924d-ad61f3cdfb01/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true,17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca95623-7afe-470c-924d-ad61f3cdfb01/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt [2021-11-19 13:31:39,192 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting failErr0ASSERT_VIOLATIONMEMORY_LEAK === [val_from_nodeErr0REQUIRES_VIOLATION, val_from_nodeErr1REQUIRES_VIOLATION, failErr0ASSERT_VIOLATIONMEMORY_LEAK, inspectErr0REQUIRES_VIOLATION (and 67 more)] === [2021-11-19 13:31:39,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:31:39,193 INFO L85 PathProgramCache]: Analyzing trace with hash -661448180, now seen corresponding path program 1 times [2021-11-19 13:31:39,193 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:31:39,193 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [760485320] [2021-11-19 13:31:39,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:31:39,193 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:31:39,194 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca95623-7afe-470c-924d-ad61f3cdfb01/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:31:39,196 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca95623-7afe-470c-924d-ad61f3cdfb01/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:31:39,237 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca95623-7afe-470c-924d-ad61f3cdfb01/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2021-11-19 13:31:39,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:31:39,417 INFO L263 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 23 conjunts are in the unsatisfiable core [2021-11-19 13:31:39,419 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:31:39,427 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 [2021-11-19 13:31:39,465 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-19 13:31:39,466 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 15 [2021-11-19 13:31:39,685 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 11 treesize of output 7 [2021-11-19 13:31:39,769 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 [2021-11-19 13:31:39,933 INFO L354 Elim1Store]: treesize reduction 68, result has 20.0 percent of original size [2021-11-19 13:31:39,933 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 3 new quantified variables, introduced 3 case distinctions, treesize of input 51 treesize of output 36 [2021-11-19 13:31:40,399 INFO L354 Elim1Store]: treesize reduction 40, result has 2.4 percent of original size [2021-11-19 13:31:40,400 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 50 treesize of output 17 [2021-11-19 13:31:40,447 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 13:31:40,447 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:31:50,067 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-19 13:31:50,070 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 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 30 treesize of output 26 [2021-11-19 13:31:50,468 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 13:31:50,469 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:31:50,469 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [760485320] [2021-11-19 13:31:50,469 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [760485320] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:31:50,469 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:31:50,469 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13, 13] imperfect sequences [] total 21 [2021-11-19 13:31:50,472 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1298191316] [2021-11-19 13:31:50,473 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:31:50,473 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2021-11-19 13:31:50,474 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:31:50,474 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-11-19 13:31:50,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=359, Unknown=3, NotChecked=0, Total=420 [2021-11-19 13:31:50,475 INFO L87 Difference]: Start difference. First operand 264 states and 324 transitions. Second operand has 21 states, 21 states have (on average 2.142857142857143) internal successors, (45), 16 states have internal predecessors, (45), 4 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-19 13:31:52,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:31:52,573 INFO L93 Difference]: Finished difference Result 304 states and 339 transitions. [2021-11-19 13:31:52,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-19 13:31:52,574 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 2.142857142857143) internal successors, (45), 16 states have internal predecessors, (45), 4 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 30 [2021-11-19 13:31:52,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:31:52,577 INFO L225 Difference]: With dead ends: 304 [2021-11-19 13:31:52,577 INFO L226 Difference]: Without dead ends: 304 [2021-11-19 13:31:52,578 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 38 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 103 ImplicationChecksByTransitivity, 10.3s TimeCoverageRelationStatistics Valid=120, Invalid=689, Unknown=3, NotChecked=0, Total=812 [2021-11-19 13:31:52,579 INFO L933 BasicCegarLoop]: 245 mSDtfsCounter, 226 mSDsluCounter, 2920 mSDsCounter, 0 mSdLazyCounter, 551 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 227 SdHoareTripleChecker+Valid, 3165 SdHoareTripleChecker+Invalid, 1040 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 551 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 479 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2021-11-19 13:31:52,579 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [227 Valid, 3165 Invalid, 1040 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 551 Invalid, 0 Unknown, 479 Unchecked, 1.6s Time] [2021-11-19 13:31:52,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 304 states. [2021-11-19 13:31:52,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 304 to 264. [2021-11-19 13:31:52,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 264 states, 188 states have (on average 1.5691489361702127) internal successors, (295), 250 states have internal predecessors, (295), 21 states have call successors, (21), 7 states have call predecessors, (21), 5 states have return successors, (7), 6 states have call predecessors, (7), 7 states have call successors, (7) [2021-11-19 13:31:52,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 264 states to 264 states and 323 transitions. [2021-11-19 13:31:52,591 INFO L78 Accepts]: Start accepts. Automaton has 264 states and 323 transitions. Word has length 30 [2021-11-19 13:31:52,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:31:52,592 INFO L470 AbstractCegarLoop]: Abstraction has 264 states and 323 transitions. [2021-11-19 13:31:52,592 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 2.142857142857143) internal successors, (45), 16 states have internal predecessors, (45), 4 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-19 13:31:52,592 INFO L276 IsEmpty]: Start isEmpty. Operand 264 states and 323 transitions. [2021-11-19 13:31:52,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-11-19 13:31:52,594 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:31:52,594 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:31:52,605 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca95623-7afe-470c-924d-ad61f3cdfb01/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (19)] Forceful destruction successful, exit code 0 [2021-11-19 13:31:52,797 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca95623-7afe-470c-924d-ad61f3cdfb01/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:31:52,798 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting list_addErr2REQUIRES_VIOLATION === [val_from_nodeErr0REQUIRES_VIOLATION, val_from_nodeErr1REQUIRES_VIOLATION, failErr0ASSERT_VIOLATIONMEMORY_LEAK, inspectErr0REQUIRES_VIOLATION (and 67 more)] === [2021-11-19 13:31:52,798 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:31:52,798 INFO L85 PathProgramCache]: Analyzing trace with hash -662300209, now seen corresponding path program 1 times [2021-11-19 13:31:52,799 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:31:52,799 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1038141865] [2021-11-19 13:31:52,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:31:52,799 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:31:52,800 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca95623-7afe-470c-924d-ad61f3cdfb01/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:31:52,800 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca95623-7afe-470c-924d-ad61f3cdfb01/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:31:52,806 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca95623-7afe-470c-924d-ad61f3cdfb01/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2021-11-19 13:31:53,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:31:53,056 INFO L263 TraceCheckSpWp]: Trace formula consists of 169 conjuncts, 32 conjunts are in the unsatisfiable core [2021-11-19 13:31:53,058 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:31:53,063 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 [2021-11-19 13:31:53,133 INFO L354 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2021-11-19 13:31:53,133 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 2 case distinctions, treesize of input 23 treesize of output 30 [2021-11-19 13:31:53,912 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 11 treesize of output 7 [2021-11-19 13:31:54,282 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 [2021-11-19 13:31:54,456 INFO L354 Elim1Store]: treesize reduction 68, result has 20.0 percent of original size [2021-11-19 13:31:54,456 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 3 new quantified variables, introduced 3 case distinctions, treesize of input 64 treesize of output 45 [2021-11-19 13:31:54,749 INFO L354 Elim1Store]: treesize reduction 42, result has 44.0 percent of original size [2021-11-19 13:31:54,750 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 43 treesize of output 64 [2021-11-19 13:31:55,429 INFO L354 Elim1Store]: treesize reduction 809, result has 3.1 percent of original size [2021-11-19 13:31:55,429 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 9 case distinctions, treesize of input 126 treesize of output 66 [2021-11-19 13:31:56,145 INFO L354 Elim1Store]: treesize reduction 40, result has 2.4 percent of original size [2021-11-19 13:31:56,145 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 116 treesize of output 75 [2021-11-19 13:31:56,479 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 3 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 13:31:56,479 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:31:56,762 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:56,763 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 122 [2021-11-19 13:32:04,943 WARN L838 $PredicateComparison]: unable to prove that (forall ((|ULTIMATE.start_gl_insert_~node~1#1.offset| (_ BitVec 32)) (v_DerPreprocessor_13 (_ BitVec 32)) (|v_ULTIMATE.start_gl_insert_~node~1#1.base_36| (_ BitVec 32)) (v_DerPreprocessor_14 (_ BitVec 32)) (v_DerPreprocessor_15 (_ BitVec 32)) (v_DerPreprocessor_16 (_ BitVec 32))) (or (= (_ bv0 1) (bvadd (_ bv1 1) (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (select (store |c_#valid| |v_ULTIMATE.start_gl_insert_~node~1#1.base_36| (_ bv1 1)) (select (select (store |c_#memory_$Pointer$.base| |v_ULTIMATE.start_gl_insert_~node~1#1.base_36| (store (store (store (store (select |c_#memory_$Pointer$.base| |v_ULTIMATE.start_gl_insert_~node~1#1.base_36|) |ULTIMATE.start_gl_insert_~node~1#1.offset| v_DerPreprocessor_13) (bvadd |ULTIMATE.start_gl_insert_~node~1#1.offset| (_ bv1 32)) v_DerPreprocessor_14) (bvadd (_ bv2 32) |ULTIMATE.start_gl_insert_~node~1#1.offset|) v_DerPreprocessor_15) (bvadd (_ bv3 32) |ULTIMATE.start_gl_insert_~node~1#1.offset|) v_DerPreprocessor_16)) |c_~#gl_list~0.base|) |c_~#gl_list~0.offset|)))))))))))) (not (= (_ bv0 1) (bvneg (bvneg (bvneg (bvneg (select |c_#valid| |v_ULTIMATE.start_gl_insert_~node~1#1.base_36|))))))))) is different from false [2021-11-19 13:32:07,132 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_DerPreprocessor_13 (_ BitVec 32)) (|v_ULTIMATE.start_gl_insert_~node~1#1.base_36| (_ BitVec 32)) (|v_ULTIMATE.start_gl_insert_~node~1#1.offset_33| (_ BitVec 32)) (v_DerPreprocessor_14 (_ BitVec 32)) (v_DerPreprocessor_15 (_ BitVec 32)) (v_DerPreprocessor_16 (_ BitVec 32))) (or (not (= (_ bv0 1) (bvneg (bvneg (bvneg (bvneg (select |c_#valid| |v_ULTIMATE.start_gl_insert_~node~1#1.base_36|))))))) (= (_ bv0 1) (bvadd (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (select (store |c_#valid| |v_ULTIMATE.start_gl_insert_~node~1#1.base_36| (_ bv1 1)) (select (select (let ((.cse0 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_gl_insert_~node~1#1.base| (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_gl_insert_~node~1#1.base|) (bvadd (_ bv16 32) |c_ULTIMATE.start_gl_insert_~node~1#1.offset|) |c_ULTIMATE.start_gl_insert_~node~1#1.base|)))) (store .cse0 |v_ULTIMATE.start_gl_insert_~node~1#1.base_36| (store (store (store (store (select .cse0 |v_ULTIMATE.start_gl_insert_~node~1#1.base_36|) |v_ULTIMATE.start_gl_insert_~node~1#1.offset_33| v_DerPreprocessor_13) (bvadd |v_ULTIMATE.start_gl_insert_~node~1#1.offset_33| (_ bv1 32)) v_DerPreprocessor_14) (bvadd (_ bv2 32) |v_ULTIMATE.start_gl_insert_~node~1#1.offset_33|) v_DerPreprocessor_15) (bvadd (_ bv3 32) |v_ULTIMATE.start_gl_insert_~node~1#1.offset_33|) v_DerPreprocessor_16))) |c_~#gl_list~0.base|) |c_~#gl_list~0.offset|)))))))))) (_ bv1 1))))) is different from false [2021-11-19 13:32:09,204 WARN L838 $PredicateComparison]: unable to prove that (forall ((|ULTIMATE.start_gl_insert_~node~1#1.offset| (_ BitVec 32)) (v_DerPreprocessor_13 (_ BitVec 32)) (|v_ULTIMATE.start_gl_insert_~node~1#1.base_36| (_ BitVec 32)) (|v_ULTIMATE.start_gl_insert_~node~1#1.offset_33| (_ BitVec 32)) (v_DerPreprocessor_14 (_ BitVec 32)) (v_DerPreprocessor_15 (_ BitVec 32)) (v_DerPreprocessor_16 (_ BitVec 32))) (or (not (= (_ bv0 1) (bvneg (bvneg (bvneg (bvneg (select |c_#valid| |v_ULTIMATE.start_gl_insert_~node~1#1.base_36|))))))) (= (_ bv0 1) (bvadd (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (select (store |c_#valid| |v_ULTIMATE.start_gl_insert_~node~1#1.base_36| (_ bv1 1)) (select (select (let ((.cse0 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_gl_insert_~node~1#1.base| (store (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_gl_insert_~node~1#1.base|) (bvadd |ULTIMATE.start_gl_insert_~node~1#1.offset| (_ bv12 32)) |c_ULTIMATE.start_gl_insert_~node~1#1.base|) (bvadd (_ bv16 32) |ULTIMATE.start_gl_insert_~node~1#1.offset|) |c_ULTIMATE.start_gl_insert_~node~1#1.base|)))) (store .cse0 |v_ULTIMATE.start_gl_insert_~node~1#1.base_36| (store (store (store (store (select .cse0 |v_ULTIMATE.start_gl_insert_~node~1#1.base_36|) |v_ULTIMATE.start_gl_insert_~node~1#1.offset_33| v_DerPreprocessor_13) (bvadd |v_ULTIMATE.start_gl_insert_~node~1#1.offset_33| (_ bv1 32)) v_DerPreprocessor_14) (bvadd (_ bv2 32) |v_ULTIMATE.start_gl_insert_~node~1#1.offset_33|) v_DerPreprocessor_15) (bvadd (_ bv3 32) |v_ULTIMATE.start_gl_insert_~node~1#1.offset_33|) v_DerPreprocessor_16))) |c_~#gl_list~0.base|) |c_~#gl_list~0.offset|))))))))))) (_ bv1 1))))) is different from false [2021-11-19 13:32:14,273 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 1507524 treesize of output 1506500 [2021-11-19 13:32:18,253 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:32:18,253 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1038141865] [2021-11-19 13:32:18,254 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: BigInteger out of long range [2021-11-19 13:32:18,254 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [764882757] [2021-11-19 13:32:18,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:32:18,254 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-19 13:32:18,255 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca95623-7afe-470c-924d-ad61f3cdfb01/bin/utaipan-UbGMyvGFUs/cvc4 [2021-11-19 13:32:18,263 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca95623-7afe-470c-924d-ad61f3cdfb01/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-19 13:32:18,265 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca95623-7afe-470c-924d-ad61f3cdfb01/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (21)] Waiting until timeout for monitored process [2021-11-19 13:32:18,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:32:18,574 INFO L263 TraceCheckSpWp]: Trace formula consists of 169 conjuncts, 35 conjunts are in the unsatisfiable core [2021-11-19 13:32:18,576 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:32:18,595 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 7 treesize of output 3 [2021-11-19 13:32:18,709 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 [2021-11-19 13:32:19,727 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 11 treesize of output 7 [2021-11-19 13:32:20,332 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:32:20,334 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 [2021-11-19 13:32:20,618 INFO L354 Elim1Store]: treesize reduction 68, result has 20.0 percent of original size [2021-11-19 13:32:20,619 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 3 new quantified variables, introduced 3 case distinctions, treesize of input 62 treesize of output 43 [2021-11-19 13:32:21,154 INFO L354 Elim1Store]: treesize reduction 27, result has 43.8 percent of original size [2021-11-19 13:32:21,155 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 2 case distinctions, treesize of input 25 treesize of output 36 [2021-11-19 13:32:21,919 INFO L354 Elim1Store]: treesize reduction 809, result has 3.1 percent of original size [2021-11-19 13:32:21,919 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 9 case distinctions, treesize of input 128 treesize of output 68 [2021-11-19 13:32:22,963 INFO L354 Elim1Store]: treesize reduction 40, result has 2.4 percent of original size [2021-11-19 13:32:22,963 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 88 treesize of output 47 [2021-11-19 13:32:23,523 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 1 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 13:32:23,524 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:32:23,631 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:23,634 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 124 [2021-11-19 13:32:55,250 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 590294 treesize of output 589782 [2021-11-19 13:32:57,688 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: BigInteger out of long range [2021-11-19 13:32:57,688 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [744536831] [2021-11-19 13:32:57,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:32:57,689 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 13:32:57,689 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca95623-7afe-470c-924d-ad61f3cdfb01/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 13:32:57,694 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca95623-7afe-470c-924d-ad61f3cdfb01/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 13:32:57,698 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca95623-7afe-470c-924d-ad61f3cdfb01/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2021-11-19 13:32:57,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:32:57,811 INFO L263 TraceCheckSpWp]: Trace formula consists of 169 conjuncts, 32 conjunts are in the unsatisfiable core [2021-11-19 13:32:57,813 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:32:57,817 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 [2021-11-19 13:32:57,839 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-19 13:32:57,840 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 15 [2021-11-19 13:33:00,455 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 11 treesize of output 7 [2021-11-19 13:33:00,890 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 [2021-11-19 13:33:00,997 INFO L354 Elim1Store]: treesize reduction 68, result has 20.0 percent of original size [2021-11-19 13:33:00,997 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 3 new quantified variables, introduced 3 case distinctions, treesize of input 63 treesize of output 44 [2021-11-19 13:33:01,267 INFO L354 Elim1Store]: treesize reduction 42, result has 44.0 percent of original size [2021-11-19 13:33:01,268 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 46 treesize of output 67 [2021-11-19 13:33:01,728 INFO L354 Elim1Store]: treesize reduction 809, result has 3.1 percent of original size [2021-11-19 13:33:01,728 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 9 case distinctions, treesize of input 127 treesize of output 67 [2021-11-19 13:33:02,083 INFO L354 Elim1Store]: treesize reduction 40, result has 2.4 percent of original size [2021-11-19 13:33:02,084 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 116 treesize of output 75 [2021-11-19 13:33:02,316 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 13:33:02,316 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:33:02,356 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:33:02,363 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 122 [2021-11-19 13:33:10,100 WARN L838 $PredicateComparison]: unable to prove that (forall ((|ULTIMATE.start_gl_insert_~node~1#1.offset| (_ BitVec 32)) (v_DerPreprocessor_13 (_ BitVec 32)) (v_DerPreprocessor_14 (_ BitVec 32)) (|v_ULTIMATE.start_gl_insert_~node~1#1.base_40| (_ BitVec 32)) (v_DerPreprocessor_15 (_ BitVec 32)) (v_DerPreprocessor_16 (_ BitVec 32))) (or (= (_ bv0 1) (bvadd (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (select (store |c_#valid| |v_ULTIMATE.start_gl_insert_~node~1#1.base_40| (_ bv1 1)) (select (select (store |c_#memory_$Pointer$.base| |v_ULTIMATE.start_gl_insert_~node~1#1.base_40| (store (store (store (store (select |c_#memory_$Pointer$.base| |v_ULTIMATE.start_gl_insert_~node~1#1.base_40|) |ULTIMATE.start_gl_insert_~node~1#1.offset| v_DerPreprocessor_13) (bvadd |ULTIMATE.start_gl_insert_~node~1#1.offset| (_ bv1 32)) v_DerPreprocessor_14) (bvadd (_ bv2 32) |ULTIMATE.start_gl_insert_~node~1#1.offset|) v_DerPreprocessor_15) (bvadd (_ bv3 32) |ULTIMATE.start_gl_insert_~node~1#1.offset|) v_DerPreprocessor_16)) |c_~#gl_list~0.base|) |c_~#gl_list~0.offset|))))))))) (_ bv1 1))) (not (= (_ bv0 1) (bvneg (select |c_#valid| |v_ULTIMATE.start_gl_insert_~node~1#1.base_40|)))))) is different from false [2021-11-19 13:33:12,296 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_gl_insert_~node~1#1.offset_39| (_ BitVec 32)) (v_DerPreprocessor_13 (_ BitVec 32)) (v_DerPreprocessor_14 (_ BitVec 32)) (|v_ULTIMATE.start_gl_insert_~node~1#1.base_40| (_ BitVec 32)) (v_DerPreprocessor_15 (_ BitVec 32)) (v_DerPreprocessor_16 (_ BitVec 32))) (or (not (= (_ bv0 1) (bvneg (select |c_#valid| |v_ULTIMATE.start_gl_insert_~node~1#1.base_40|)))) (= (_ bv0 1) (bvadd (_ bv1 1) (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (select (store |c_#valid| |v_ULTIMATE.start_gl_insert_~node~1#1.base_40| (_ bv1 1)) (select (select (let ((.cse0 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_gl_insert_~node~1#1.base| (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_gl_insert_~node~1#1.base|) (bvadd (_ bv16 32) |c_ULTIMATE.start_gl_insert_~node~1#1.offset|) |c_ULTIMATE.start_gl_insert_~node~1#1.base|)))) (store .cse0 |v_ULTIMATE.start_gl_insert_~node~1#1.base_40| (store (store (store (store (select .cse0 |v_ULTIMATE.start_gl_insert_~node~1#1.base_40|) |v_ULTIMATE.start_gl_insert_~node~1#1.offset_39| v_DerPreprocessor_13) (bvadd |v_ULTIMATE.start_gl_insert_~node~1#1.offset_39| (_ bv1 32)) v_DerPreprocessor_14) (bvadd (_ bv2 32) |v_ULTIMATE.start_gl_insert_~node~1#1.offset_39|) v_DerPreprocessor_15) (bvadd (_ bv3 32) |v_ULTIMATE.start_gl_insert_~node~1#1.offset_39|) v_DerPreprocessor_16))) |c_~#gl_list~0.base|) |c_~#gl_list~0.offset|))))))))))))) is different from false [2021-11-19 13:33:14,414 WARN L838 $PredicateComparison]: unable to prove that (forall ((|ULTIMATE.start_gl_insert_~node~1#1.offset| (_ BitVec 32)) (|v_ULTIMATE.start_gl_insert_~node~1#1.offset_39| (_ BitVec 32)) (v_DerPreprocessor_13 (_ BitVec 32)) (v_DerPreprocessor_14 (_ BitVec 32)) (|v_ULTIMATE.start_gl_insert_~node~1#1.base_40| (_ BitVec 32)) (v_DerPreprocessor_15 (_ BitVec 32)) (v_DerPreprocessor_16 (_ BitVec 32))) (or (not (= (_ bv0 1) (bvneg (select |c_#valid| |v_ULTIMATE.start_gl_insert_~node~1#1.base_40|)))) (= (_ bv0 1) (bvadd (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (select (store |c_#valid| |v_ULTIMATE.start_gl_insert_~node~1#1.base_40| (_ bv1 1)) (select (select (let ((.cse0 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_gl_insert_~node~1#1.base| (store (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_gl_insert_~node~1#1.base|) (bvadd |ULTIMATE.start_gl_insert_~node~1#1.offset| (_ bv12 32)) |c_ULTIMATE.start_gl_insert_~node~1#1.base|) (bvadd (_ bv16 32) |ULTIMATE.start_gl_insert_~node~1#1.offset|) |c_ULTIMATE.start_gl_insert_~node~1#1.base|)))) (store .cse0 |v_ULTIMATE.start_gl_insert_~node~1#1.base_40| (store (store (store (store (select .cse0 |v_ULTIMATE.start_gl_insert_~node~1#1.base_40|) |v_ULTIMATE.start_gl_insert_~node~1#1.offset_39| v_DerPreprocessor_13) (bvadd |v_ULTIMATE.start_gl_insert_~node~1#1.offset_39| (_ bv1 32)) v_DerPreprocessor_14) (bvadd (_ bv2 32) |v_ULTIMATE.start_gl_insert_~node~1#1.offset_39|) v_DerPreprocessor_15) (bvadd (_ bv3 32) |v_ULTIMATE.start_gl_insert_~node~1#1.offset_39|) v_DerPreprocessor_16))) |c_~#gl_list~0.base|) |c_~#gl_list~0.offset|))))))))))) (_ bv1 1))))) is different from false [2021-11-19 13:33:19,845 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 744937 treesize of output 744425 [2021-11-19 13:33:22,112 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: BigInteger out of long range [2021-11-19 13:33:22,112 INFO L186 FreeRefinementEngine]: Found 0 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:33:22,112 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [] total 0 [2021-11-19 13:33:22,112 ERROR L172 FreeRefinementEngine]: Strategy WALRUS failed to provide any proof altough trace is infeasible [2021-11-19 13:33:22,113 INFO L628 BasicCegarLoop]: Counterexample might be feasible [2021-11-19 13:33:22,123 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location list_addErr2REQUIRES_VIOLATION (70 of 71 remaining) [2021-11-19 13:33:22,126 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location val_from_nodeErr0REQUIRES_VIOLATION (69 of 71 remaining) [2021-11-19 13:33:22,126 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location val_from_nodeErr1REQUIRES_VIOLATION (68 of 71 remaining) [2021-11-19 13:33:22,126 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location failErr0ASSERT_VIOLATIONMEMORY_LEAK (67 of 71 remaining) [2021-11-19 13:33:22,127 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location inspectErr0REQUIRES_VIOLATION (66 of 71 remaining) [2021-11-19 13:33:22,127 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location inspectErr1REQUIRES_VIOLATION (65 of 71 remaining) [2021-11-19 13:33:22,127 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location inspectErr2REQUIRES_VIOLATION (64 of 71 remaining) [2021-11-19 13:33:22,127 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location inspectErr3REQUIRES_VIOLATION (63 of 71 remaining) [2021-11-19 13:33:22,128 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location inspectErr4REQUIRES_VIOLATION (62 of 71 remaining) [2021-11-19 13:33:22,128 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location inspectErr5REQUIRES_VIOLATION (61 of 71 remaining) [2021-11-19 13:33:22,128 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location inspectErr6REQUIRES_VIOLATION (60 of 71 remaining) [2021-11-19 13:33:22,128 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location inspectErr7REQUIRES_VIOLATION (59 of 71 remaining) [2021-11-19 13:33:22,129 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location inspectErr8REQUIRES_VIOLATION (58 of 71 remaining) [2021-11-19 13:33:22,129 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location inspectErr9REQUIRES_VIOLATION (57 of 71 remaining) [2021-11-19 13:33:22,129 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location inspectErr10REQUIRES_VIOLATION (56 of 71 remaining) [2021-11-19 13:33:22,129 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location inspectErr11REQUIRES_VIOLATION (55 of 71 remaining) [2021-11-19 13:33:22,130 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location inspectErr12REQUIRES_VIOLATION (54 of 71 remaining) [2021-11-19 13:33:22,130 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location inspectErr13REQUIRES_VIOLATION (53 of 71 remaining) [2021-11-19 13:33:22,130 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location inspectErr14REQUIRES_VIOLATION (52 of 71 remaining) [2021-11-19 13:33:22,130 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location inspectErr15REQUIRES_VIOLATION (51 of 71 remaining) [2021-11-19 13:33:22,131 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location inspectErr16REQUIRES_VIOLATION (50 of 71 remaining) [2021-11-19 13:33:22,131 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location inspectErr17REQUIRES_VIOLATION (49 of 71 remaining) [2021-11-19 13:33:22,131 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location inspectErr18REQUIRES_VIOLATION (48 of 71 remaining) [2021-11-19 13:33:22,132 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location inspectErr19REQUIRES_VIOLATION (47 of 71 remaining) [2021-11-19 13:33:22,132 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location inspectErr20REQUIRES_VIOLATION (46 of 71 remaining) [2021-11-19 13:33:22,133 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location inspectErr21REQUIRES_VIOLATION (45 of 71 remaining) [2021-11-19 13:33:22,133 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location inspectErr22REQUIRES_VIOLATION (44 of 71 remaining) [2021-11-19 13:33:22,133 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location inspectErr23REQUIRES_VIOLATION (43 of 71 remaining) [2021-11-19 13:33:22,133 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location inspectErr24REQUIRES_VIOLATION (42 of 71 remaining) [2021-11-19 13:33:22,134 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location inspectErr25REQUIRES_VIOLATION (41 of 71 remaining) [2021-11-19 13:33:22,134 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location inspectErr26REQUIRES_VIOLATION (40 of 71 remaining) [2021-11-19 13:33:22,134 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location inspectErr27REQUIRES_VIOLATION (39 of 71 remaining) [2021-11-19 13:33:22,134 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location inspectErr28REQUIRES_VIOLATION (38 of 71 remaining) [2021-11-19 13:33:22,135 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location inspectErr29REQUIRES_VIOLATION (37 of 71 remaining) [2021-11-19 13:33:22,135 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location list_addErr0REQUIRES_VIOLATION (36 of 71 remaining) [2021-11-19 13:33:22,135 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location list_addErr1REQUIRES_VIOLATION (35 of 71 remaining) [2021-11-19 13:33:22,135 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location list_addErr3REQUIRES_VIOLATION (34 of 71 remaining) [2021-11-19 13:33:22,136 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location list_addErr4REQUIRES_VIOLATION (33 of 71 remaining) [2021-11-19 13:33:22,136 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location list_addErr5REQUIRES_VIOLATION (32 of 71 remaining) [2021-11-19 13:33:22,136 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location list_addErr6REQUIRES_VIOLATION (31 of 71 remaining) [2021-11-19 13:33:22,136 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location list_addErr7REQUIRES_VIOLATION (30 of 71 remaining) [2021-11-19 13:33:22,137 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location list_addErr8REQUIRES_VIOLATION (29 of 71 remaining) [2021-11-19 13:33:22,137 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location list_addErr9REQUIRES_VIOLATION (28 of 71 remaining) [2021-11-19 13:33:22,137 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATION (27 of 71 remaining) [2021-11-19 13:33:22,137 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATION (26 of 71 remaining) [2021-11-19 13:33:22,138 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATION (25 of 71 remaining) [2021-11-19 13:33:22,138 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATION (24 of 71 remaining) [2021-11-19 13:33:22,138 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATION (23 of 71 remaining) [2021-11-19 13:33:22,138 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5REQUIRES_VIOLATION (22 of 71 remaining) [2021-11-19 13:33:22,139 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6REQUIRES_VIOLATION (21 of 71 remaining) [2021-11-19 13:33:22,139 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7REQUIRES_VIOLATION (20 of 71 remaining) [2021-11-19 13:33:22,139 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8REQUIRES_VIOLATION (19 of 71 remaining) [2021-11-19 13:33:22,139 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9REQUIRES_VIOLATION (18 of 71 remaining) [2021-11-19 13:33:22,140 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10REQUIRES_VIOLATION (17 of 71 remaining) [2021-11-19 13:33:22,140 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11REQUIRES_VIOLATION (16 of 71 remaining) [2021-11-19 13:33:22,140 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12REQUIRES_VIOLATION (15 of 71 remaining) [2021-11-19 13:33:22,140 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13REQUIRES_VIOLATION (14 of 71 remaining) [2021-11-19 13:33:22,141 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14REQUIRES_VIOLATION (13 of 71 remaining) [2021-11-19 13:33:22,141 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15REQUIRES_VIOLATION (12 of 71 remaining) [2021-11-19 13:33:22,141 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr16REQUIRES_VIOLATION (11 of 71 remaining) [2021-11-19 13:33:22,141 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr17REQUIRES_VIOLATION (10 of 71 remaining) [2021-11-19 13:33:22,142 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr18REQUIRES_VIOLATION (9 of 71 remaining) [2021-11-19 13:33:22,142 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr19REQUIRES_VIOLATION (8 of 71 remaining) [2021-11-19 13:33:22,142 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr20REQUIRES_VIOLATION (7 of 71 remaining) [2021-11-19 13:33:22,142 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr21REQUIRES_VIOLATION (6 of 71 remaining) [2021-11-19 13:33:22,143 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr22REQUIRES_VIOLATION (5 of 71 remaining) [2021-11-19 13:33:22,143 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr23REQUIRES_VIOLATION (4 of 71 remaining) [2021-11-19 13:33:22,143 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_FREE (3 of 71 remaining) [2021-11-19 13:33:22,143 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_FREE (2 of 71 remaining) [2021-11-19 13:33:22,144 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_FREE (1 of 71 remaining) [2021-11-19 13:33:22,144 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr27ASSERT_VIOLATIONMEMORY_LEAK (0 of 71 remaining) [2021-11-19 13:33:22,152 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca95623-7afe-470c-924d-ad61f3cdfb01/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (21)] Ended with exit code 0 [2021-11-19 13:33:22,370 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca95623-7afe-470c-924d-ad61f3cdfb01/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (20)] Forceful destruction successful, exit code 0 [2021-11-19 13:33:22,594 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca95623-7afe-470c-924d-ad61f3cdfb01/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2021-11-19 13:33:22,748 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca95623-7afe-470c-924d-ad61f3cdfb01/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt,20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca95623-7afe-470c-924d-ad61f3cdfb01/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3,22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca95623-7afe-470c-924d-ad61f3cdfb01/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 13:33:22,752 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:33:22,760 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-19 13:33:22,785 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 01:33:22 BoogieIcfgContainer [2021-11-19 13:33:22,785 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-19 13:33:22,786 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-19 13:33:22,786 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-19 13:33:22,787 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-19 13:33:22,787 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 01:29:36" (3/4) ... [2021-11-19 13:33:22,791 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-19 13:33:22,791 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-19 13:33:22,792 INFO L158 Benchmark]: Toolchain (without parser) took 229027.32ms. Allocated memory was 54.5MB in the beginning and 268.4MB in the end (delta: 213.9MB). Free memory was 29.2MB in the beginning and 162.3MB in the end (delta: -133.1MB). Peak memory consumption was 80.2MB. Max. memory is 16.1GB. [2021-11-19 13:33:22,794 INFO L158 Benchmark]: CDTParser took 0.37ms. Allocated memory is still 54.5MB. Free memory is still 35.7MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 13:33:22,795 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1087.68ms. Allocated memory was 54.5MB in the beginning and 71.3MB in the end (delta: 16.8MB). Free memory was 29.0MB in the beginning and 43.0MB in the end (delta: -14.0MB). Peak memory consumption was 11.9MB. Max. memory is 16.1GB. [2021-11-19 13:33:22,795 INFO L158 Benchmark]: Boogie Procedure Inliner took 75.38ms. Allocated memory is still 71.3MB. Free memory was 43.0MB in the beginning and 40.4MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-19 13:33:22,796 INFO L158 Benchmark]: Boogie Preprocessor took 62.31ms. Allocated memory is still 71.3MB. Free memory was 40.4MB in the beginning and 37.5MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-19 13:33:22,796 INFO L158 Benchmark]: RCFGBuilder took 1579.83ms. Allocated memory is still 71.3MB. Free memory was 37.5MB in the beginning and 43.4MB in the end (delta: -6.0MB). Peak memory consumption was 7.5MB. Max. memory is 16.1GB. [2021-11-19 13:33:22,800 INFO L158 Benchmark]: TraceAbstraction took 226208.01ms. Allocated memory was 71.3MB in the beginning and 268.4MB in the end (delta: 197.1MB). Free memory was 43.1MB in the beginning and 162.3MB in the end (delta: -119.2MB). Peak memory consumption was 159.7MB. Max. memory is 16.1GB. [2021-11-19 13:33:22,800 INFO L158 Benchmark]: Witness Printer took 5.43ms. Allocated memory is still 268.4MB. Free memory is still 162.3MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 13:33:22,810 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37ms. Allocated memory is still 54.5MB. Free memory is still 35.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1087.68ms. Allocated memory was 54.5MB in the beginning and 71.3MB in the end (delta: 16.8MB). Free memory was 29.0MB in the beginning and 43.0MB in the end (delta: -14.0MB). Peak memory consumption was 11.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 75.38ms. Allocated memory is still 71.3MB. Free memory was 43.0MB in the beginning and 40.4MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 62.31ms. Allocated memory is still 71.3MB. Free memory was 40.4MB in the beginning and 37.5MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1579.83ms. Allocated memory is still 71.3MB. Free memory was 37.5MB in the beginning and 43.4MB in the end (delta: -6.0MB). Peak memory consumption was 7.5MB. Max. memory is 16.1GB. * TraceAbstraction took 226208.01ms. Allocated memory was 71.3MB in the beginning and 268.4MB in the end (delta: 197.1MB). Free memory was 43.1MB in the beginning and 162.3MB in the end (delta: -119.2MB). Peak memory consumption was 159.7MB. Max. memory is 16.1GB. * Witness Printer took 5.43ms. Allocated memory is still 268.4MB. Free memory is still 162.3MB. There was no memory consumed. Max. memory is 16.1GB. * 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: 878]: 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: [L850] struct list_head gl_list = { &(gl_list), &(gl_list) }; [L949] CALL gl_read() [L909] CALL gl_insert(__VERIFIER_nondet_int()) [L899] struct node *node = malloc(sizeof *node); [L900] COND FALSE !(!node) [L902] node->value = value [L903] CALL list_add(&node->linkage, &gl_list) [L890] EXPR head->next [L890] CALL __list_add(new, head, head->next) [L878] next->prev = new [L879] new->next = next [L880] new->prev = prev [L881] prev->next = new [L890] RET __list_add(new, head, head->next) [L903] RET list_add(&node->linkage, &gl_list) [L904] (&node->nested)->next = (&node->nested) [L904] (&node->nested)->prev = (&node->nested) [L909] RET gl_insert(__VERIFIER_nondet_int()) [L911] COND TRUE __VERIFIER_nondet_int() [L909] CALL gl_insert(__VERIFIER_nondet_int()) [L899] struct node *node = malloc(sizeof *node); [L900] COND FALSE !(!node) [L902] node->value = value [L903] CALL list_add(&node->linkage, &gl_list) [L890] EXPR head->next [L890] CALL __list_add(new, head, head->next) [L878] next->prev = new - UnprovableResult [Line: 923]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 923]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 840]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 854]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 854]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 855]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 855]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 856]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 856]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 858]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 858]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 859]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 859]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 862]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 862]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 863]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 863]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 864]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 864]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 865]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 865]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 869]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 869]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 869]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 869]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 870]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 870]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 870]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 870]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 871]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 871]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 871]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 871]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 890]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 890]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 878]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 879]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 879]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 880]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 880]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 881]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 881]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 902]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 902]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 904]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 904]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 904]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 904]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 928]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 928]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 930]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 930]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 894]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 894]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 894]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 894]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 885]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 885]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 886]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 886]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 916]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 916]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 917]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 917]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 917]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 917]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 918]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 918]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 918]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 947]: 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 5 procedures, 216 locations, 71 error locations. Started 1 CEGAR loops. OverallTime: 226.1s, OverallIterations: 17, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 56.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2740 SdHoareTripleChecker+Valid, 19.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2704 mSDsluCounter, 17131 SdHoareTripleChecker+Invalid, 16.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 1973 IncrementalHoareTripleChecker+Unchecked, 13791 mSDsCounter, 143 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4607 IncrementalHoareTripleChecker+Invalid, 6723 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 143 mSolverCounterUnsat, 3340 mSDtfsCounter, 4607 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 610 GetRequests, 383 SyntacticMatches, 31 SemanticMatches, 196 ConstructedPredicates, 4 IntricatePredicates, 0 DeprecatedPredicates, 1541 ImplicationChecksByTransitivity, 94.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=278occurred in iteration=8, InterpolantAutomatonStates: 121, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 16 MinimizatonAttempts, 303 StatesRemovedByMinimization, 11 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 1.6s SatisfiabilityAnalysisTime, 98.2s InterpolantComputationTime, 320 NumberOfCodeBlocks, 320 NumberOfCodeBlocksAsserted, 19 NumberOfCheckSat, 574 ConstructedInterpolants, 140 QuantifiedInterpolants, 9693 SizeOfPredicates, 162 NumberOfNonLiveVariables, 1862 ConjunctsInSsa, 220 ConjunctsInUnsatCore, 37 InterpolantComputations, 30 PerfectInterpolantSequences, 18/44 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 [2021-11-19 13:33:22,893 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca95623-7afe-470c-924d-ad61f3cdfb01/bin/utaipan-UbGMyvGFUs/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