./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../../sv-benchmarks/c/heap-manipulation/bubble_sort_linux-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (memcleanup) Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97823785-d5b4-4e54-83b0-29dd2d848e94/bin/uautomizer-UnR33cPsHg/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97823785-d5b4-4e54-83b0-29dd2d848e94/bin/uautomizer-UnR33cPsHg/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97823785-d5b4-4e54-83b0-29dd2d848e94/bin/uautomizer-UnR33cPsHg/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97823785-d5b4-4e54-83b0-29dd2d848e94/bin/uautomizer-UnR33cPsHg/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/heap-manipulation/bubble_sort_linux-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97823785-d5b4-4e54-83b0-29dd2d848e94/bin/uautomizer-UnR33cPsHg/config/svcomp-MemCleanup-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97823785-d5b4-4e54-83b0-29dd2d848e94/bin/uautomizer-UnR33cPsHg --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-memcleanup) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 3b13662719be51a1d3330a7f40f7706daa8c7b2d4044bc92f854095c09c7c129 .................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97823785-d5b4-4e54-83b0-29dd2d848e94/bin/uautomizer-UnR33cPsHg/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97823785-d5b4-4e54-83b0-29dd2d848e94/bin/uautomizer-UnR33cPsHg/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97823785-d5b4-4e54-83b0-29dd2d848e94/bin/uautomizer-UnR33cPsHg/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97823785-d5b4-4e54-83b0-29dd2d848e94/bin/uautomizer-UnR33cPsHg/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/heap-manipulation/bubble_sort_linux-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97823785-d5b4-4e54-83b0-29dd2d848e94/bin/uautomizer-UnR33cPsHg/config/svcomp-MemCleanup-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97823785-d5b4-4e54-83b0-29dd2d848e94/bin/uautomizer-UnR33cPsHg --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-memcleanup) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 3b13662719be51a1d3330a7f40f7706daa8c7b2d4044bc92f854095c09c7c129 ..................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-28 09:25:05,538 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 09:25:05,541 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 09:25:05,586 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 09:25:05,586 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 09:25:05,588 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 09:25:05,590 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 09:25:05,592 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 09:25:05,594 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 09:25:05,596 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 09:25:05,597 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 09:25:05,599 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 09:25:05,599 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 09:25:05,601 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 09:25:05,602 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 09:25:05,604 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 09:25:05,605 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 09:25:05,607 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 09:25:05,609 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 09:25:05,612 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 09:25:05,614 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 09:25:05,616 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 09:25:05,618 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 09:25:05,619 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 09:25:05,623 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 09:25:05,624 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 09:25:05,624 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 09:25:05,626 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 09:25:05,626 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 09:25:05,628 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 09:25:05,628 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 09:25:05,629 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 09:25:05,631 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 09:25:05,632 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 09:25:05,633 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 09:25:05,634 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 09:25:05,635 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 09:25:05,635 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 09:25:05,635 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 09:25:05,636 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 09:25:05,637 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 09:25:05,642 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97823785-d5b4-4e54-83b0-29dd2d848e94/bin/uautomizer-UnR33cPsHg/config/svcomp-MemCleanup-32bit-Automizer_Default.epf [2021-10-28 09:25:05,695 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 09:25:05,695 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 09:25:05,696 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 09:25:05,696 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 09:25:05,704 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 09:25:05,704 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 09:25:05,705 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 09:25:05,705 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 09:25:05,705 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 09:25:05,705 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-28 09:25:05,706 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 09:25:05,707 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 09:25:05,707 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 09:25:05,708 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-10-28 09:25:05,708 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-10-28 09:25:05,708 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-28 09:25:05,708 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-28 09:25:05,709 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 09:25:05,709 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 09:25:05,709 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 09:25:05,709 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 09:25:05,710 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-28 09:25:05,710 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 09:25:05,710 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 09:25:05,711 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-28 09:25:05,711 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 09:25:05,711 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-28 09:25:05,711 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 09:25:05,712 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_97823785-d5b4-4e54-83b0-29dd2d848e94/bin/uautomizer-UnR33cPsHg/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97823785-d5b4-4e54-83b0-29dd2d848e94/bin/uautomizer-UnR33cPsHg Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3b13662719be51a1d3330a7f40f7706daa8c7b2d4044bc92f854095c09c7c129 [2021-10-28 09:25:06,000 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 09:25:06,030 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 09:25:06,033 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 09:25:06,034 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 09:25:06,036 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 09:25:06,037 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97823785-d5b4-4e54-83b0-29dd2d848e94/bin/uautomizer-UnR33cPsHg/../../sv-benchmarks/c/heap-manipulation/bubble_sort_linux-2.i [2021-10-28 09:25:06,119 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97823785-d5b4-4e54-83b0-29dd2d848e94/bin/uautomizer-UnR33cPsHg/data/d889c65de/25702efead564adcb8e3b040e8af3d70/FLAGe6162cf76 [2021-10-28 09:25:06,711 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 09:25:06,716 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97823785-d5b4-4e54-83b0-29dd2d848e94/sv-benchmarks/c/heap-manipulation/bubble_sort_linux-2.i [2021-10-28 09:25:06,743 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97823785-d5b4-4e54-83b0-29dd2d848e94/bin/uautomizer-UnR33cPsHg/data/d889c65de/25702efead564adcb8e3b040e8af3d70/FLAGe6162cf76 [2021-10-28 09:25:06,962 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97823785-d5b4-4e54-83b0-29dd2d848e94/bin/uautomizer-UnR33cPsHg/data/d889c65de/25702efead564adcb8e3b040e8af3d70 [2021-10-28 09:25:06,964 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 09:25:06,966 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-10-28 09:25:06,968 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 09:25:06,968 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 09:25:06,972 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 09:25:06,972 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 09:25:06" (1/1) ... [2021-10-28 09:25:06,974 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@44caeabf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:25:06, skipping insertion in model container [2021-10-28 09:25:06,974 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 09:25:06" (1/1) ... [2021-10-28 09:25:06,988 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 09:25:07,031 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 09:25:07,469 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97823785-d5b4-4e54-83b0-29dd2d848e94/sv-benchmarks/c/heap-manipulation/bubble_sort_linux-2.i[33822,33835] [2021-10-28 09:25:07,493 WARN L549 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-10-28 09:25:07,494 WARN L549 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-10-28 09:25:07,494 WARN L549 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-10-28 09:25:07,518 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 09:25:07,528 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) [2021-10-28 09:25:07,529 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@6b96f309 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:25:07, skipping insertion in model container [2021-10-28 09:25:07,529 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 09:25:07,529 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.preprocessor [2021-10-28 09:25:07,532 INFO L168 Benchmark]: Toolchain (without parser) took 564.26 ms. Allocated memory is still 100.7 MB. Free memory was 64.4 MB in the beginning and 68.1 MB in the end (delta: -3.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-28 09:25:07,532 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 100.7 MB. Free memory is still 55.8 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 09:25:07,533 INFO L168 Benchmark]: CACSL2BoogieTranslator took 561.44 ms. Allocated memory is still 100.7 MB. Free memory was 64.3 MB in the beginning and 68.1 MB in the end (delta: -3.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-28 09:25:07,535 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 100.7 MB. Free memory is still 55.8 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 561.44 ms. Allocated memory is still 100.7 MB. Free memory was 64.3 MB in the beginning and 68.1 MB in the end (delta: -3.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 860]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.1-dev-b2eff8b [2021-10-28 09:25:09,810 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 09:25:09,813 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 09:25:09,865 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 09:25:09,865 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 09:25:09,869 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 09:25:09,871 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 09:25:09,878 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 09:25:09,881 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 09:25:09,886 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 09:25:09,888 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 09:25:09,890 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 09:25:09,890 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 09:25:09,892 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 09:25:09,895 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 09:25:09,899 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 09:25:09,901 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 09:25:09,902 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 09:25:09,904 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 09:25:09,915 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 09:25:09,918 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 09:25:09,919 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 09:25:09,922 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 09:25:09,925 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 09:25:09,934 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 09:25:09,934 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 09:25:09,935 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 09:25:09,937 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 09:25:09,937 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 09:25:09,938 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 09:25:09,939 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 09:25:09,940 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 09:25:09,942 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 09:25:09,943 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 09:25:09,944 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 09:25:09,944 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 09:25:09,945 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 09:25:09,945 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 09:25:09,946 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 09:25:09,947 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 09:25:09,948 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 09:25:09,949 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97823785-d5b4-4e54-83b0-29dd2d848e94/bin/uautomizer-UnR33cPsHg/config/svcomp-MemCleanup-32bit-Automizer_Bitvector.epf [2021-10-28 09:25:09,994 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 09:25:09,994 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 09:25:09,995 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 09:25:09,995 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 09:25:09,997 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 09:25:09,997 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 09:25:09,997 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 09:25:09,998 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 09:25:09,998 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 09:25:09,998 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-28 09:25:09,999 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 09:25:09,999 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 09:25:10,000 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 09:25:10,000 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-10-28 09:25:10,000 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-10-28 09:25:10,000 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-28 09:25:10,001 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-28 09:25:10,001 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-28 09:25:10,001 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-28 09:25:10,001 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 09:25:10,001 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 09:25:10,002 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 09:25:10,002 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 09:25:10,002 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-28 09:25:10,002 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 09:25:10,002 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 09:25:10,003 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-28 09:25:10,003 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-10-28 09:25:10,003 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-28 09:25:10,004 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 09:25:10,004 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-28 09:25:10,004 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_97823785-d5b4-4e54-83b0-29dd2d848e94/bin/uautomizer-UnR33cPsHg/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97823785-d5b4-4e54-83b0-29dd2d848e94/bin/uautomizer-UnR33cPsHg Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3b13662719be51a1d3330a7f40f7706daa8c7b2d4044bc92f854095c09c7c129 [2021-10-28 09:25:10,381 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 09:25:10,411 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 09:25:10,416 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 09:25:10,417 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 09:25:10,418 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 09:25:10,419 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97823785-d5b4-4e54-83b0-29dd2d848e94/bin/uautomizer-UnR33cPsHg/../../sv-benchmarks/c/heap-manipulation/bubble_sort_linux-2.i [2021-10-28 09:25:10,499 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97823785-d5b4-4e54-83b0-29dd2d848e94/bin/uautomizer-UnR33cPsHg/data/f08972091/7c2d4529e72b445baa600286deec7daa/FLAGbc65f5cf8 [2021-10-28 09:25:11,161 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 09:25:11,162 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97823785-d5b4-4e54-83b0-29dd2d848e94/sv-benchmarks/c/heap-manipulation/bubble_sort_linux-2.i [2021-10-28 09:25:11,179 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97823785-d5b4-4e54-83b0-29dd2d848e94/bin/uautomizer-UnR33cPsHg/data/f08972091/7c2d4529e72b445baa600286deec7daa/FLAGbc65f5cf8 [2021-10-28 09:25:11,450 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97823785-d5b4-4e54-83b0-29dd2d848e94/bin/uautomizer-UnR33cPsHg/data/f08972091/7c2d4529e72b445baa600286deec7daa [2021-10-28 09:25:11,456 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 09:25:11,458 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-10-28 09:25:11,466 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 09:25:11,466 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 09:25:11,470 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 09:25:11,471 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 09:25:11" (1/1) ... [2021-10-28 09:25:11,472 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@36dedc6d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:25:11, skipping insertion in model container [2021-10-28 09:25:11,473 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 09:25:11" (1/1) ... [2021-10-28 09:25:11,480 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 09:25:11,526 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 09:25:11,993 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97823785-d5b4-4e54-83b0-29dd2d848e94/sv-benchmarks/c/heap-manipulation/bubble_sort_linux-2.i[33822,33835] [2021-10-28 09:25:12,034 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 09:25:12,047 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-10-28 09:25:12,057 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 09:25:12,087 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97823785-d5b4-4e54-83b0-29dd2d848e94/sv-benchmarks/c/heap-manipulation/bubble_sort_linux-2.i[33822,33835] [2021-10-28 09:25:12,135 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 09:25:12,141 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 09:25:12,204 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97823785-d5b4-4e54-83b0-29dd2d848e94/sv-benchmarks/c/heap-manipulation/bubble_sort_linux-2.i[33822,33835] [2021-10-28 09:25:12,231 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 09:25:12,309 INFO L208 MainTranslator]: Completed translation [2021-10-28 09:25:12,310 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:25:12 WrapperNode [2021-10-28 09:25:12,310 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 09:25:12,311 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 09:25:12,312 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 09:25:12,312 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 09:25:12,324 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:25:12" (1/1) ... [2021-10-28 09:25:12,324 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:25:12" (1/1) ... [2021-10-28 09:25:12,346 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:25:12" (1/1) ... [2021-10-28 09:25:12,346 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:25:12" (1/1) ... [2021-10-28 09:25:12,377 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:25:12" (1/1) ... [2021-10-28 09:25:12,388 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:25:12" (1/1) ... [2021-10-28 09:25:12,396 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:25:12" (1/1) ... [2021-10-28 09:25:12,407 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 09:25:12,408 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 09:25:12,408 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 09:25:12,408 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 09:25:12,409 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:25:12" (1/1) ... [2021-10-28 09:25:12,417 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 09:25:12,442 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97823785-d5b4-4e54-83b0-29dd2d848e94/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:25:12,476 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97823785-d5b4-4e54-83b0-29dd2d848e94/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-28 09:25:12,498 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97823785-d5b4-4e54-83b0-29dd2d848e94/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-28 09:25:12,525 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-10-28 09:25:12,525 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 09:25:12,526 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.setCurrentRoundingMode [2021-10-28 09:25:12,528 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-10-28 09:25:12,528 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2021-10-28 09:25:12,529 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2021-10-28 09:25:12,529 INFO L138 BoogieDeclarations]: Found implementation of procedure fail [2021-10-28 09:25:12,529 INFO L138 BoogieDeclarations]: Found implementation of procedure inspect [2021-10-28 09:25:12,529 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2021-10-28 09:25:12,529 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_del [2021-10-28 09:25:12,530 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2021-10-28 09:25:12,530 INFO L138 BoogieDeclarations]: Found implementation of procedure list_move [2021-10-28 09:25:12,530 INFO L138 BoogieDeclarations]: Found implementation of procedure gl_insert [2021-10-28 09:25:12,531 INFO L138 BoogieDeclarations]: Found implementation of procedure gl_read [2021-10-28 09:25:12,531 INFO L138 BoogieDeclarations]: Found implementation of procedure gl_destroy [2021-10-28 09:25:12,531 INFO L138 BoogieDeclarations]: Found implementation of procedure val_from_node [2021-10-28 09:25:12,532 INFO L138 BoogieDeclarations]: Found implementation of procedure gl_sort_pass [2021-10-28 09:25:12,532 INFO L138 BoogieDeclarations]: Found implementation of procedure gl_sort [2021-10-28 09:25:12,532 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-10-28 09:25:12,532 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-10-28 09:25:12,532 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-10-28 09:25:12,533 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2021-10-28 09:25:12,533 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2021-10-28 09:25:12,533 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-10-28 09:25:12,533 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 09:25:12,534 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2021-10-28 09:25:12,534 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2021-10-28 09:25:12,534 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2021-10-28 09:25:12,534 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2021-10-28 09:25:12,534 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2021-10-28 09:25:12,534 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2021-10-28 09:25:12,534 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2021-10-28 09:25:12,535 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2021-10-28 09:25:12,535 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2021-10-28 09:25:12,535 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2021-10-28 09:25:12,535 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2021-10-28 09:25:12,535 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2021-10-28 09:25:12,535 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2021-10-28 09:25:12,536 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2021-10-28 09:25:12,536 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2021-10-28 09:25:12,536 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2021-10-28 09:25:12,537 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2021-10-28 09:25:12,537 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2021-10-28 09:25:12,538 INFO L130 BoogieDeclarations]: Found specification of procedure select [2021-10-28 09:25:12,538 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2021-10-28 09:25:12,538 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2021-10-28 09:25:12,538 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2021-10-28 09:25:12,538 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2021-10-28 09:25:12,539 INFO L130 BoogieDeclarations]: Found specification of procedure random [2021-10-28 09:25:12,539 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2021-10-28 09:25:12,539 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2021-10-28 09:25:12,539 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2021-10-28 09:25:12,539 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2021-10-28 09:25:12,539 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2021-10-28 09:25:12,540 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2021-10-28 09:25:12,540 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2021-10-28 09:25:12,540 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2021-10-28 09:25:12,540 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2021-10-28 09:25:12,541 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2021-10-28 09:25:12,541 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2021-10-28 09:25:12,542 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2021-10-28 09:25:12,542 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2021-10-28 09:25:12,543 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2021-10-28 09:25:12,543 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2021-10-28 09:25:12,544 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2021-10-28 09:25:12,544 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2021-10-28 09:25:12,544 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2021-10-28 09:25:12,544 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2021-10-28 09:25:12,544 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2021-10-28 09:25:12,544 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2021-10-28 09:25:12,545 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2021-10-28 09:25:12,545 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2021-10-28 09:25:12,545 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2021-10-28 09:25:12,545 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2021-10-28 09:25:12,545 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2021-10-28 09:25:12,546 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2021-10-28 09:25:12,546 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2021-10-28 09:25:12,546 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2021-10-28 09:25:12,546 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2021-10-28 09:25:12,547 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2021-10-28 09:25:12,547 INFO L130 BoogieDeclarations]: Found specification of procedure free [2021-10-28 09:25:12,547 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2021-10-28 09:25:12,547 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2021-10-28 09:25:12,547 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2021-10-28 09:25:12,547 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2021-10-28 09:25:12,548 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2021-10-28 09:25:12,548 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2021-10-28 09:25:12,548 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2021-10-28 09:25:12,548 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2021-10-28 09:25:12,548 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2021-10-28 09:25:12,548 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2021-10-28 09:25:12,548 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2021-10-28 09:25:12,549 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2021-10-28 09:25:12,549 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2021-10-28 09:25:12,549 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2021-10-28 09:25:12,549 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2021-10-28 09:25:12,550 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2021-10-28 09:25:12,550 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2021-10-28 09:25:12,550 INFO L130 BoogieDeclarations]: Found specification of procedure system [2021-10-28 09:25:12,550 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2021-10-28 09:25:12,550 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2021-10-28 09:25:12,551 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2021-10-28 09:25:12,551 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2021-10-28 09:25:12,551 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2021-10-28 09:25:12,551 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2021-10-28 09:25:12,551 INFO L130 BoogieDeclarations]: Found specification of procedure div [2021-10-28 09:25:12,551 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2021-10-28 09:25:12,552 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2021-10-28 09:25:12,552 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2021-10-28 09:25:12,552 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2021-10-28 09:25:12,552 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2021-10-28 09:25:12,552 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2021-10-28 09:25:12,552 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2021-10-28 09:25:12,552 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2021-10-28 09:25:12,553 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2021-10-28 09:25:12,553 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2021-10-28 09:25:12,553 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2021-10-28 09:25:12,553 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2021-10-28 09:25:12,554 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2021-10-28 09:25:12,554 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2021-10-28 09:25:12,555 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2021-10-28 09:25:12,555 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2021-10-28 09:25:12,558 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2021-10-28 09:25:12,558 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2021-10-28 09:25:12,558 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2021-10-28 09:25:12,559 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2021-10-28 09:25:12,560 INFO L130 BoogieDeclarations]: Found specification of procedure __underflow [2021-10-28 09:25:12,560 INFO L130 BoogieDeclarations]: Found specification of procedure __uflow [2021-10-28 09:25:12,560 INFO L130 BoogieDeclarations]: Found specification of procedure __overflow [2021-10-28 09:25:12,560 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_getc [2021-10-28 09:25:12,561 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_putc [2021-10-28 09:25:12,567 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_feof [2021-10-28 09:25:12,567 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_ferror [2021-10-28 09:25:12,568 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_peekc_locked [2021-10-28 09:25:12,568 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_flockfile [2021-10-28 09:25:12,568 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_funlockfile [2021-10-28 09:25:12,568 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_ftrylockfile [2021-10-28 09:25:12,568 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_vfscanf [2021-10-28 09:25:12,568 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_vfprintf [2021-10-28 09:25:12,568 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_padn [2021-10-28 09:25:12,569 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_sgetn [2021-10-28 09:25:12,569 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_seekoff [2021-10-28 09:25:12,569 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_seekpos [2021-10-28 09:25:12,569 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_free_backup_area [2021-10-28 09:25:12,569 INFO L130 BoogieDeclarations]: Found specification of procedure remove [2021-10-28 09:25:12,569 INFO L130 BoogieDeclarations]: Found specification of procedure rename [2021-10-28 09:25:12,569 INFO L130 BoogieDeclarations]: Found specification of procedure renameat [2021-10-28 09:25:12,570 INFO L130 BoogieDeclarations]: Found specification of procedure tmpfile [2021-10-28 09:25:12,570 INFO L130 BoogieDeclarations]: Found specification of procedure tmpnam [2021-10-28 09:25:12,570 INFO L130 BoogieDeclarations]: Found specification of procedure tmpnam_r [2021-10-28 09:25:12,570 INFO L130 BoogieDeclarations]: Found specification of procedure tempnam [2021-10-28 09:25:12,570 INFO L130 BoogieDeclarations]: Found specification of procedure fclose [2021-10-28 09:25:12,570 INFO L130 BoogieDeclarations]: Found specification of procedure fflush [2021-10-28 09:25:12,570 INFO L130 BoogieDeclarations]: Found specification of procedure fflush_unlocked [2021-10-28 09:25:12,571 INFO L130 BoogieDeclarations]: Found specification of procedure fopen [2021-10-28 09:25:12,571 INFO L130 BoogieDeclarations]: Found specification of procedure freopen [2021-10-28 09:25:12,571 INFO L130 BoogieDeclarations]: Found specification of procedure fdopen [2021-10-28 09:25:12,571 INFO L130 BoogieDeclarations]: Found specification of procedure fmemopen [2021-10-28 09:25:12,571 INFO L130 BoogieDeclarations]: Found specification of procedure open_memstream [2021-10-28 09:25:12,571 INFO L130 BoogieDeclarations]: Found specification of procedure setbuf [2021-10-28 09:25:12,571 INFO L130 BoogieDeclarations]: Found specification of procedure setvbuf [2021-10-28 09:25:12,571 INFO L130 BoogieDeclarations]: Found specification of procedure setbuffer [2021-10-28 09:25:12,572 INFO L130 BoogieDeclarations]: Found specification of procedure setlinebuf [2021-10-28 09:25:12,572 INFO L130 BoogieDeclarations]: Found specification of procedure fprintf [2021-10-28 09:25:12,572 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2021-10-28 09:25:12,572 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2021-10-28 09:25:12,572 INFO L130 BoogieDeclarations]: Found specification of procedure vfprintf [2021-10-28 09:25:12,572 INFO L130 BoogieDeclarations]: Found specification of procedure vprintf [2021-10-28 09:25:12,572 INFO L130 BoogieDeclarations]: Found specification of procedure vsprintf [2021-10-28 09:25:12,573 INFO L130 BoogieDeclarations]: Found specification of procedure snprintf [2021-10-28 09:25:12,573 INFO L130 BoogieDeclarations]: Found specification of procedure vsnprintf [2021-10-28 09:25:12,573 INFO L130 BoogieDeclarations]: Found specification of procedure vdprintf [2021-10-28 09:25:12,573 INFO L130 BoogieDeclarations]: Found specification of procedure dprintf [2021-10-28 09:25:12,573 INFO L130 BoogieDeclarations]: Found specification of procedure fscanf [2021-10-28 09:25:12,573 INFO L130 BoogieDeclarations]: Found specification of procedure scanf [2021-10-28 09:25:12,573 INFO L130 BoogieDeclarations]: Found specification of procedure sscanf [2021-10-28 09:25:12,574 INFO L130 BoogieDeclarations]: Found specification of procedure vfscanf [2021-10-28 09:25:12,574 INFO L130 BoogieDeclarations]: Found specification of procedure vscanf [2021-10-28 09:25:12,574 INFO L130 BoogieDeclarations]: Found specification of procedure vsscanf [2021-10-28 09:25:12,574 INFO L130 BoogieDeclarations]: Found specification of procedure fgetc [2021-10-28 09:25:12,574 INFO L130 BoogieDeclarations]: Found specification of procedure getc [2021-10-28 09:25:12,574 INFO L130 BoogieDeclarations]: Found specification of procedure getchar [2021-10-28 09:25:12,574 INFO L130 BoogieDeclarations]: Found specification of procedure getc_unlocked [2021-10-28 09:25:12,575 INFO L130 BoogieDeclarations]: Found specification of procedure getchar_unlocked [2021-10-28 09:25:12,575 INFO L130 BoogieDeclarations]: Found specification of procedure fgetc_unlocked [2021-10-28 09:25:12,575 INFO L130 BoogieDeclarations]: Found specification of procedure fputc [2021-10-28 09:25:12,575 INFO L130 BoogieDeclarations]: Found specification of procedure putc [2021-10-28 09:25:12,575 INFO L130 BoogieDeclarations]: Found specification of procedure putchar [2021-10-28 09:25:12,575 INFO L130 BoogieDeclarations]: Found specification of procedure fputc_unlocked [2021-10-28 09:25:12,575 INFO L130 BoogieDeclarations]: Found specification of procedure putc_unlocked [2021-10-28 09:25:12,576 INFO L130 BoogieDeclarations]: Found specification of procedure putchar_unlocked [2021-10-28 09:25:12,576 INFO L130 BoogieDeclarations]: Found specification of procedure getw [2021-10-28 09:25:12,576 INFO L130 BoogieDeclarations]: Found specification of procedure putw [2021-10-28 09:25:12,577 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2021-10-28 09:25:12,577 INFO L130 BoogieDeclarations]: Found specification of procedure gets [2021-10-28 09:25:12,577 INFO L130 BoogieDeclarations]: Found specification of procedure __getdelim [2021-10-28 09:25:12,577 INFO L130 BoogieDeclarations]: Found specification of procedure getdelim [2021-10-28 09:25:12,577 INFO L130 BoogieDeclarations]: Found specification of procedure getline [2021-10-28 09:25:12,577 INFO L130 BoogieDeclarations]: Found specification of procedure fputs [2021-10-28 09:25:12,577 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2021-10-28 09:25:12,577 INFO L130 BoogieDeclarations]: Found specification of procedure ungetc [2021-10-28 09:25:12,578 INFO L130 BoogieDeclarations]: Found specification of procedure fread [2021-10-28 09:25:12,578 INFO L130 BoogieDeclarations]: Found specification of procedure fwrite [2021-10-28 09:25:12,578 INFO L130 BoogieDeclarations]: Found specification of procedure fread_unlocked [2021-10-28 09:25:12,578 INFO L130 BoogieDeclarations]: Found specification of procedure fwrite_unlocked [2021-10-28 09:25:12,578 INFO L130 BoogieDeclarations]: Found specification of procedure fseek [2021-10-28 09:25:12,578 INFO L130 BoogieDeclarations]: Found specification of procedure ftell [2021-10-28 09:25:12,578 INFO L130 BoogieDeclarations]: Found specification of procedure rewind [2021-10-28 09:25:12,579 INFO L130 BoogieDeclarations]: Found specification of procedure fseeko [2021-10-28 09:25:12,579 INFO L130 BoogieDeclarations]: Found specification of procedure ftello [2021-10-28 09:25:12,579 INFO L130 BoogieDeclarations]: Found specification of procedure fgetpos [2021-10-28 09:25:12,579 INFO L130 BoogieDeclarations]: Found specification of procedure fsetpos [2021-10-28 09:25:12,579 INFO L130 BoogieDeclarations]: Found specification of procedure clearerr [2021-10-28 09:25:12,579 INFO L130 BoogieDeclarations]: Found specification of procedure feof [2021-10-28 09:25:12,579 INFO L130 BoogieDeclarations]: Found specification of procedure ferror [2021-10-28 09:25:12,580 INFO L130 BoogieDeclarations]: Found specification of procedure clearerr_unlocked [2021-10-28 09:25:12,580 INFO L130 BoogieDeclarations]: Found specification of procedure feof_unlocked [2021-10-28 09:25:12,580 INFO L130 BoogieDeclarations]: Found specification of procedure ferror_unlocked [2021-10-28 09:25:12,580 INFO L130 BoogieDeclarations]: Found specification of procedure perror [2021-10-28 09:25:12,580 INFO L130 BoogieDeclarations]: Found specification of procedure fileno [2021-10-28 09:25:12,580 INFO L130 BoogieDeclarations]: Found specification of procedure fileno_unlocked [2021-10-28 09:25:12,580 INFO L130 BoogieDeclarations]: Found specification of procedure popen [2021-10-28 09:25:12,580 INFO L130 BoogieDeclarations]: Found specification of procedure pclose [2021-10-28 09:25:12,581 INFO L130 BoogieDeclarations]: Found specification of procedure ctermid [2021-10-28 09:25:12,581 INFO L130 BoogieDeclarations]: Found specification of procedure flockfile [2021-10-28 09:25:12,581 INFO L130 BoogieDeclarations]: Found specification of procedure ftrylockfile [2021-10-28 09:25:12,581 INFO L130 BoogieDeclarations]: Found specification of procedure funlockfile [2021-10-28 09:25:12,581 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-10-28 09:25:12,581 INFO L130 BoogieDeclarations]: Found specification of procedure fail [2021-10-28 09:25:12,581 INFO L130 BoogieDeclarations]: Found specification of procedure inspect [2021-10-28 09:25:12,582 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-10-28 09:25:12,582 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2021-10-28 09:25:12,582 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-10-28 09:25:12,582 INFO L130 BoogieDeclarations]: Found specification of procedure __list_del [2021-10-28 09:25:12,582 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2021-10-28 09:25:12,582 INFO L130 BoogieDeclarations]: Found specification of procedure list_move [2021-10-28 09:25:12,582 INFO L130 BoogieDeclarations]: Found specification of procedure gl_insert [2021-10-28 09:25:12,603 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-28 09:25:12,604 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-10-28 09:25:12,604 INFO L130 BoogieDeclarations]: Found specification of procedure gl_read [2021-10-28 09:25:12,604 INFO L130 BoogieDeclarations]: Found specification of procedure gl_destroy [2021-10-28 09:25:12,604 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-28 09:25:12,604 INFO L130 BoogieDeclarations]: Found specification of procedure val_from_node [2021-10-28 09:25:12,604 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-10-28 09:25:12,604 INFO L130 BoogieDeclarations]: Found specification of procedure gl_sort_pass [2021-10-28 09:25:12,605 INFO L130 BoogieDeclarations]: Found specification of procedure gl_sort [2021-10-28 09:25:12,605 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-10-28 09:25:12,605 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-10-28 09:25:12,606 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-28 09:25:12,610 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-10-28 09:25:12,610 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 09:25:12,610 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.setCurrentRoundingMode [2021-10-28 09:25:12,610 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-10-28 09:25:12,610 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-10-28 09:25:14,027 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 09:25:14,027 INFO L299 CfgBuilder]: Removed 41 assume(true) statements. [2021-10-28 09:25:14,031 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:25:14 BoogieIcfgContainer [2021-10-28 09:25:14,031 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 09:25:14,034 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-28 09:25:14,035 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-28 09:25:14,038 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-28 09:25:14,039 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 09:25:11" (1/3) ... [2021-10-28 09:25:14,039 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63c55beb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 09:25:14, skipping insertion in model container [2021-10-28 09:25:14,040 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:25:12" (2/3) ... [2021-10-28 09:25:14,040 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63c55beb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 09:25:14, skipping insertion in model container [2021-10-28 09:25:14,040 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:25:14" (3/3) ... [2021-10-28 09:25:14,042 INFO L111 eAbstractionObserver]: Analyzing ICFG bubble_sort_linux-2.i [2021-10-28 09:25:14,048 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-28 09:25:14,049 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 71 error locations. [2021-10-28 09:25:14,097 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-28 09:25:14,104 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 [2021-10-28 09:25:14,104 INFO L340 AbstractCegarLoop]: Starting to check reachability of 71 error locations. [2021-10-28 09:25:14,145 INFO L276 IsEmpty]: Start isEmpty. Operand has 240 states, 123 states have (on average 2.089430894308943) internal successors, (257), 213 states have internal predecessors, (257), 33 states have call successors, (33), 14 states have call predecessors, (33), 14 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) [2021-10-28 09:25:14,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-28 09:25:14,169 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:25:14,169 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:25:14,170 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting gl_insertErr0REQUIRES_VIOLATION === [__list_delErr0REQUIRES_VIOLATION, __list_delErr1REQUIRES_VIOLATION, __list_delErr2REQUIRES_VIOLATION, __list_delErr3REQUIRES_VIOLATION (and 67 more)] === [2021-10-28 09:25:14,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:25:14,176 INFO L85 PathProgramCache]: Analyzing trace with hash 963234318, now seen corresponding path program 1 times [2021-10-28 09:25:14,189 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 09:25:14,189 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1315466704] [2021-10-28 09:25:14,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:25:14,190 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 09:25:14,191 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97823785-d5b4-4e54-83b0-29dd2d848e94/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 09:25:14,198 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97823785-d5b4-4e54-83b0-29dd2d848e94/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 09:25:14,231 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97823785-d5b4-4e54-83b0-29dd2d848e94/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-28 09:25:14,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:25:14,444 INFO L263 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 1 conjunts are in the unsatisfiable core [2021-10-28 09:25:14,448 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:25:14,505 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:25:14,506 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 09:25:14,544 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:25:14,545 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 09:25:14,545 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1315466704] [2021-10-28 09:25:14,546 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1315466704] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 09:25:14,546 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:25:14,546 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-10-28 09:25:14,548 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [429577258] [2021-10-28 09:25:14,553 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-28 09:25:14,553 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 09:25:14,567 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-28 09:25:14,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-28 09:25:14,571 INFO L87 Difference]: Start difference. First operand has 240 states, 123 states have (on average 2.089430894308943) internal successors, (257), 213 states have internal predecessors, (257), 33 states have call successors, (33), 14 states have call predecessors, (33), 14 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) Second operand has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-10-28 09:25:14,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:25:14,607 INFO L93 Difference]: Finished difference Result 236 states and 258 transitions. [2021-10-28 09:25:14,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-28 09:25:14,608 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), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 10 [2021-10-28 09:25:14,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:25:14,619 INFO L225 Difference]: With dead ends: 236 [2021-10-28 09:25:14,620 INFO L226 Difference]: Without dead ends: 233 [2021-10-28 09:25:14,621 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-28 09:25:14,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 233 states. [2021-10-28 09:25:14,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 233 to 233. [2021-10-28 09:25:14,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 233 states, 119 states have (on average 1.7563025210084033) internal successors, (209), 206 states have internal predecessors, (209), 31 states have call successors, (31), 14 states have call predecessors, (31), 12 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2021-10-28 09:25:14,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 233 states to 233 states and 255 transitions. [2021-10-28 09:25:14,678 INFO L78 Accepts]: Start accepts. Automaton has 233 states and 255 transitions. Word has length 10 [2021-10-28 09:25:14,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:25:14,679 INFO L470 AbstractCegarLoop]: Abstraction has 233 states and 255 transitions. [2021-10-28 09:25:14,679 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), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-10-28 09:25:14,680 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states and 255 transitions. [2021-10-28 09:25:14,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-28 09:25:14,680 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:25:14,699 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:25:14,715 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97823785-d5b4-4e54-83b0-29dd2d848e94/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-28 09:25:14,910 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97823785-d5b4-4e54-83b0-29dd2d848e94/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 09:25:14,911 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting gl_insertErr0REQUIRES_VIOLATION === [__list_delErr0REQUIRES_VIOLATION, __list_delErr1REQUIRES_VIOLATION, __list_delErr2REQUIRES_VIOLATION, __list_delErr3REQUIRES_VIOLATION (and 67 more)] === [2021-10-28 09:25:14,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:25:14,912 INFO L85 PathProgramCache]: Analyzing trace with hash 963234380, now seen corresponding path program 1 times [2021-10-28 09:25:14,913 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 09:25:14,913 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [117784147] [2021-10-28 09:25:14,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:25:14,914 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 09:25:14,914 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97823785-d5b4-4e54-83b0-29dd2d848e94/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 09:25:14,915 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97823785-d5b4-4e54-83b0-29dd2d848e94/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 09:25:14,951 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97823785-d5b4-4e54-83b0-29dd2d848e94/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-28 09:25:15,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:25:15,169 INFO L263 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 09:25:15,171 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:25:15,256 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 [2021-10-28 09:25:15,278 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:25:15,278 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 09:25:15,348 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:25:15,348 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 09:25:15,349 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [117784147] [2021-10-28 09:25:15,350 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [117784147] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 09:25:15,350 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:25:15,351 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-10-28 09:25:15,351 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2108488671] [2021-10-28 09:25:15,354 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 09:25:15,355 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 09:25:15,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 09:25:15,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 09:25:15,359 INFO L87 Difference]: Start difference. First operand 233 states and 255 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-10-28 09:25:15,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:25:15,724 INFO L93 Difference]: Finished difference Result 230 states and 252 transitions. [2021-10-28 09:25:15,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 09:25:15,725 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), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 10 [2021-10-28 09:25:15,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:25:15,728 INFO L225 Difference]: With dead ends: 230 [2021-10-28 09:25:15,728 INFO L226 Difference]: Without dead ends: 230 [2021-10-28 09:25:15,729 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 09:25:15,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 230 states. [2021-10-28 09:25:15,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 230 to 230. [2021-10-28 09:25:15,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 230 states, 119 states have (on average 1.73109243697479) internal successors, (206), 203 states have internal predecessors, (206), 31 states have call successors, (31), 14 states have call predecessors, (31), 12 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2021-10-28 09:25:15,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 252 transitions. [2021-10-28 09:25:15,757 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 252 transitions. Word has length 10 [2021-10-28 09:25:15,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:25:15,757 INFO L470 AbstractCegarLoop]: Abstraction has 230 states and 252 transitions. [2021-10-28 09:25:15,758 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), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-10-28 09:25:15,758 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 252 transitions. [2021-10-28 09:25:15,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-28 09:25:15,758 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:25:15,759 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:25:15,782 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97823785-d5b4-4e54-83b0-29dd2d848e94/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-10-28 09:25:15,982 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97823785-d5b4-4e54-83b0-29dd2d848e94/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 09:25:15,984 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting gl_insertErr1REQUIRES_VIOLATION === [__list_delErr0REQUIRES_VIOLATION, __list_delErr1REQUIRES_VIOLATION, __list_delErr2REQUIRES_VIOLATION, __list_delErr3REQUIRES_VIOLATION (and 67 more)] === [2021-10-28 09:25:15,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:25:15,985 INFO L85 PathProgramCache]: Analyzing trace with hash 963234381, now seen corresponding path program 1 times [2021-10-28 09:25:15,985 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 09:25:15,986 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1686223693] [2021-10-28 09:25:15,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:25:15,986 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 09:25:15,986 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97823785-d5b4-4e54-83b0-29dd2d848e94/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 09:25:15,989 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97823785-d5b4-4e54-83b0-29dd2d848e94/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 09:25:16,007 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97823785-d5b4-4e54-83b0-29dd2d848e94/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-28 09:25:16,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:25:16,254 INFO L263 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-28 09:25:16,256 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:25:16,310 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 [2021-10-28 09:25:16,355 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:25:16,355 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 09:25:16,488 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:25:16,489 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 09:25:16,489 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1686223693] [2021-10-28 09:25:16,489 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1686223693] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 09:25:16,490 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:25:16,490 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2021-10-28 09:25:16,491 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1900733552] [2021-10-28 09:25:16,491 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-28 09:25:16,491 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 09:25:16,495 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-28 09:25:16,499 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-28 09:25:16,500 INFO L87 Difference]: Start difference. First operand 230 states and 252 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-10-28 09:25:17,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:25:17,121 INFO L93 Difference]: Finished difference Result 227 states and 249 transitions. [2021-10-28 09:25:17,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 09:25:17,123 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), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 10 [2021-10-28 09:25:17,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:25:17,125 INFO L225 Difference]: With dead ends: 227 [2021-10-28 09:25:17,125 INFO L226 Difference]: Without dead ends: 227 [2021-10-28 09:25:17,125 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-28 09:25:17,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 227 states. [2021-10-28 09:25:17,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 227 to 227. [2021-10-28 09:25:17,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 227 states, 119 states have (on average 1.7058823529411764) internal successors, (203), 200 states have internal predecessors, (203), 31 states have call successors, (31), 14 states have call predecessors, (31), 12 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2021-10-28 09:25:17,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 249 transitions. [2021-10-28 09:25:17,161 INFO L78 Accepts]: Start accepts. Automaton has 227 states and 249 transitions. Word has length 10 [2021-10-28 09:25:17,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:25:17,164 INFO L470 AbstractCegarLoop]: Abstraction has 227 states and 249 transitions. [2021-10-28 09:25:17,164 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), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-10-28 09:25:17,165 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 249 transitions. [2021-10-28 09:25:17,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-10-28 09:25:17,165 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:25:17,165 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:25:17,178 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97823785-d5b4-4e54-83b0-29dd2d848e94/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-10-28 09:25:17,366 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97823785-d5b4-4e54-83b0-29dd2d848e94/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 09:25:17,369 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting list_addErr0REQUIRES_VIOLATION === [__list_delErr0REQUIRES_VIOLATION, __list_delErr1REQUIRES_VIOLATION, __list_delErr2REQUIRES_VIOLATION, __list_delErr3REQUIRES_VIOLATION (and 67 more)] === [2021-10-28 09:25:17,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:25:17,369 INFO L85 PathProgramCache]: Analyzing trace with hash 1039428672, now seen corresponding path program 1 times [2021-10-28 09:25:17,370 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 09:25:17,370 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [974517894] [2021-10-28 09:25:17,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:25:17,371 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 09:25:17,371 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97823785-d5b4-4e54-83b0-29dd2d848e94/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 09:25:17,372 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97823785-d5b4-4e54-83b0-29dd2d848e94/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 09:25:17,375 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97823785-d5b4-4e54-83b0-29dd2d848e94/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-10-28 09:25:17,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:25:17,709 INFO L263 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 12 conjunts are in the unsatisfiable core [2021-10-28 09:25:17,711 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:25:17,798 INFO L354 Elim1Store]: treesize reduction 77, result has 29.4 percent of original size [2021-10-28 09:25:17,799 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 15 treesize of output 37 [2021-10-28 09:25:18,142 INFO L354 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2021-10-28 09:25:18,143 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 20 treesize of output 27 [2021-10-28 09:25:18,497 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:25:18,498 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 09:25:35,863 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:25:35,863 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 09:25:35,863 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [974517894] [2021-10-28 09:25:35,864 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [974517894] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 09:25:35,864 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:25:35,864 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-10-28 09:25:35,864 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [948069364] [2021-10-28 09:25:35,864 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-10-28 09:25:35,865 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 09:25:35,865 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-28 09:25:35,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=49, Unknown=3, NotChecked=0, Total=72 [2021-10-28 09:25:35,866 INFO L87 Difference]: Start difference. First operand 227 states and 249 transitions. Second operand has 9 states, 8 states have (on average 1.75) internal successors, (14), 6 states have internal predecessors, (14), 4 states have call successors, (9), 5 states have call predecessors, (9), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-10-28 09:25:37,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:25:37,535 INFO L93 Difference]: Finished difference Result 253 states and 275 transitions. [2021-10-28 09:25:37,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-28 09:25:37,536 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), 4 states have call successors, (9), 5 states have call predecessors, (9), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 13 [2021-10-28 09:25:37,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:25:37,538 INFO L225 Difference]: With dead ends: 253 [2021-10-28 09:25:37,539 INFO L226 Difference]: Without dead ends: 253 [2021-10-28 09:25:37,539 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 12 SyntacticMatches, 6 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 17.4s TimeCoverageRelationStatistics Valid=45, Invalid=84, Unknown=3, NotChecked=0, Total=132 [2021-10-28 09:25:37,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 253 states. [2021-10-28 09:25:37,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 253 to 232. [2021-10-28 09:25:37,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 232 states, 124 states have (on average 1.6774193548387097) internal successors, (208), 203 states have internal predecessors, (208), 32 states have call successors, (32), 15 states have call predecessors, (32), 13 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2021-10-28 09:25:37,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232 states to 232 states and 256 transitions. [2021-10-28 09:25:37,563 INFO L78 Accepts]: Start accepts. Automaton has 232 states and 256 transitions. Word has length 13 [2021-10-28 09:25:37,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:25:37,564 INFO L470 AbstractCegarLoop]: Abstraction has 232 states and 256 transitions. [2021-10-28 09:25:37,564 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), 4 states have call successors, (9), 5 states have call predecessors, (9), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-10-28 09:25:37,565 INFO L276 IsEmpty]: Start isEmpty. Operand 232 states and 256 transitions. [2021-10-28 09:25:37,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-10-28 09:25:37,565 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:25:37,566 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:25:37,583 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97823785-d5b4-4e54-83b0-29dd2d848e94/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-10-28 09:25:37,777 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97823785-d5b4-4e54-83b0-29dd2d848e94/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 09:25:37,778 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting list_addErr1REQUIRES_VIOLATION === [__list_delErr0REQUIRES_VIOLATION, __list_delErr1REQUIRES_VIOLATION, __list_delErr2REQUIRES_VIOLATION, __list_delErr3REQUIRES_VIOLATION (and 67 more)] === [2021-10-28 09:25:37,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:25:37,778 INFO L85 PathProgramCache]: Analyzing trace with hash 1039428673, now seen corresponding path program 1 times [2021-10-28 09:25:37,779 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 09:25:37,779 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [157168868] [2021-10-28 09:25:37,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:25:37,779 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 09:25:37,779 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97823785-d5b4-4e54-83b0-29dd2d848e94/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 09:25:37,780 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97823785-d5b4-4e54-83b0-29dd2d848e94/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 09:25:37,782 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97823785-d5b4-4e54-83b0-29dd2d848e94/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-10-28 09:25:38,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:25:38,050 INFO L263 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 22 conjunts are in the unsatisfiable core [2021-10-28 09:25:38,052 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:25:38,120 INFO L354 Elim1Store]: treesize reduction 33, result has 40.0 percent of original size [2021-10-28 09:25:38,121 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 28 treesize of output 42 [2021-10-28 09:25:38,203 INFO L354 Elim1Store]: treesize reduction 77, result has 29.4 percent of original size [2021-10-28 09:25:38,203 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 42 treesize of output 63 [2021-10-28 09:25:38,824 INFO L354 Elim1Store]: treesize reduction 32, result has 31.9 percent of original size [2021-10-28 09:25:38,825 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 44 treesize of output 51 [2021-10-28 09:25:38,879 INFO L354 Elim1Store]: treesize reduction 2, result has 92.0 percent of original size [2021-10-28 09:25:38,880 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 48 treesize of output 64 [2021-10-28 09:25:39,802 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:25:39,802 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 09:25:45,205 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:25:45,205 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 09:25:45,205 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [157168868] [2021-10-28 09:25:45,205 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [157168868] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 09:25:45,205 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:25:45,206 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 9 [2021-10-28 09:25:45,206 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1200065754] [2021-10-28 09:25:45,206 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-28 09:25:45,206 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 09:25:45,207 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-28 09:25:45,207 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=66, Unknown=1, NotChecked=0, Total=90 [2021-10-28 09:25:45,207 INFO L87 Difference]: Start difference. First operand 232 states and 256 transitions. Second operand has 10 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 7 states have internal predecessors, (14), 5 states have call successors, (9), 5 states have call predecessors, (9), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-10-28 09:25:47,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:25:47,970 INFO L93 Difference]: Finished difference Result 249 states and 272 transitions. [2021-10-28 09:25:47,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-28 09:25:47,970 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), 5 states have call successors, (9), 5 states have call predecessors, (9), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 13 [2021-10-28 09:25:47,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:25:47,974 INFO L225 Difference]: With dead ends: 249 [2021-10-28 09:25:47,974 INFO L226 Difference]: Without dead ends: 249 [2021-10-28 09:25:47,974 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 13 SyntacticMatches, 4 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 5.2s TimeCoverageRelationStatistics Valid=59, Invalid=122, Unknown=1, NotChecked=0, Total=182 [2021-10-28 09:25:47,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 249 states. [2021-10-28 09:25:47,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 249 to 229. [2021-10-28 09:25:47,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 229 states, 124 states have (on average 1.6370967741935485) internal successors, (203), 200 states have internal predecessors, (203), 32 states have call successors, (32), 15 states have call predecessors, (32), 13 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2021-10-28 09:25:47,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229 states to 229 states and 251 transitions. [2021-10-28 09:25:47,986 INFO L78 Accepts]: Start accepts. Automaton has 229 states and 251 transitions. Word has length 13 [2021-10-28 09:25:47,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:25:47,987 INFO L470 AbstractCegarLoop]: Abstraction has 229 states and 251 transitions. [2021-10-28 09:25:47,987 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), 5 states have call successors, (9), 5 states have call predecessors, (9), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-10-28 09:25:47,987 INFO L276 IsEmpty]: Start isEmpty. Operand 229 states and 251 transitions. [2021-10-28 09:25:47,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-28 09:25:47,988 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:25:47,988 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:25:48,009 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97823785-d5b4-4e54-83b0-29dd2d848e94/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-10-28 09:25:48,213 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97823785-d5b4-4e54-83b0-29dd2d848e94/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 09:25:48,215 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting __list_addErr0REQUIRES_VIOLATION === [__list_delErr0REQUIRES_VIOLATION, __list_delErr1REQUIRES_VIOLATION, __list_delErr2REQUIRES_VIOLATION, __list_delErr3REQUIRES_VIOLATION (and 67 more)] === [2021-10-28 09:25:48,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:25:48,216 INFO L85 PathProgramCache]: Analyzing trace with hash -1094064828, now seen corresponding path program 1 times [2021-10-28 09:25:48,217 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 09:25:48,217 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [646581278] [2021-10-28 09:25:48,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:25:48,217 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 09:25:48,218 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97823785-d5b4-4e54-83b0-29dd2d848e94/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 09:25:48,219 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97823785-d5b4-4e54-83b0-29dd2d848e94/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 09:25:48,226 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97823785-d5b4-4e54-83b0-29dd2d848e94/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-10-28 09:25:48,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:25:48,567 INFO L263 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 27 conjunts are in the unsatisfiable core [2021-10-28 09:25:48,570 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:25:48,706 INFO L354 Elim1Store]: treesize reduction 77, result has 29.4 percent of original size [2021-10-28 09:25:48,707 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 15 treesize of output 37 [2021-10-28 09:25:49,078 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-10-28 09:25:49,078 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 14 treesize of output 14 [2021-10-28 09:25:49,200 INFO L354 Elim1Store]: treesize reduction 336, result has 2.0 percent of original size [2021-10-28 09:25:49,201 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 [2021-10-28 09:25:49,315 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 25 treesize of output 17 [2021-10-28 09:25:49,419 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:25:49,419 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 09:25:49,529 INFO L354 Elim1Store]: treesize reduction 5, result has 58.3 percent of original size [2021-10-28 09:25:49,530 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 29 treesize of output 28 [2021-10-28 09:25:58,561 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_gl_insert_~node~1.base_19 (_ BitVec 32))) (or (forall ((v_DerPreprocessor_4 (_ BitVec 32)) (v_DerPreprocessor_3 (_ BitVec 32)) (v_DerPreprocessor_2 (_ BitVec 32)) (v_DerPreprocessor_1 (_ BitVec 32)) (gl_insert_~node~1.offset (_ BitVec 32))) (= |c_~#gl_list~0.base| (select (select (store |c_#memory_$Pointer$.base| v_gl_insert_~node~1.base_19 (store (store (store (store (select |c_#memory_$Pointer$.base| v_gl_insert_~node~1.base_19) gl_insert_~node~1.offset v_DerPreprocessor_1) (bvadd gl_insert_~node~1.offset (_ bv1 32)) v_DerPreprocessor_2) (bvadd (_ bv2 32) gl_insert_~node~1.offset) v_DerPreprocessor_3) (bvadd gl_insert_~node~1.offset (_ bv3 32)) v_DerPreprocessor_4)) |c_~#gl_list~0.base|) |c_~#gl_list~0.offset|))) (not (= (_ bv0 1) (bvneg (bvneg (bvneg (select |c_#valid| v_gl_insert_~node~1.base_19)))))))) is different from false [2021-10-28 09:26:00,607 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_DerPreprocessor_4 (_ BitVec 32)) (v_DerPreprocessor_3 (_ BitVec 32)) (v_DerPreprocessor_2 (_ BitVec 32)) (v_DerPreprocessor_1 (_ BitVec 32)) (gl_insert_~node~1.offset (_ BitVec 32)) (v_gl_insert_~node~1.base_19 (_ BitVec 32))) (or (not (= (_ bv0 1) (bvneg (bvneg (bvneg (bvneg (select |c_#valid| v_gl_insert_~node~1.base_19))))))) (= |c_~#gl_list~0.base| (select (select (store |c_#memory_$Pointer$.base| v_gl_insert_~node~1.base_19 (store (store (store (store (select |c_#memory_$Pointer$.base| v_gl_insert_~node~1.base_19) gl_insert_~node~1.offset v_DerPreprocessor_1) (bvadd gl_insert_~node~1.offset (_ bv1 32)) v_DerPreprocessor_2) (bvadd (_ bv2 32) gl_insert_~node~1.offset) v_DerPreprocessor_3) (bvadd gl_insert_~node~1.offset (_ bv3 32)) v_DerPreprocessor_4)) |c_~#gl_list~0.base|) |c_~#gl_list~0.offset|)))) is different from false [2021-10-28 09:26:02,656 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_DerPreprocessor_4 (_ BitVec 32)) (v_DerPreprocessor_3 (_ BitVec 32)) (v_DerPreprocessor_2 (_ BitVec 32)) (v_DerPreprocessor_1 (_ BitVec 32)) (gl_insert_~node~1.offset (_ BitVec 32)) (v_gl_insert_~node~1.base_19 (_ BitVec 32))) (or (not (= (_ bv0 1) (bvneg (bvneg (bvneg (bvneg (bvneg (select |c_#valid| v_gl_insert_~node~1.base_19)))))))) (= |c_~#gl_list~0.base| (select (select (store |c_#memory_$Pointer$.base| v_gl_insert_~node~1.base_19 (store (store (store (store (select |c_#memory_$Pointer$.base| v_gl_insert_~node~1.base_19) gl_insert_~node~1.offset v_DerPreprocessor_1) (bvadd gl_insert_~node~1.offset (_ bv1 32)) v_DerPreprocessor_2) (bvadd (_ bv2 32) gl_insert_~node~1.offset) v_DerPreprocessor_3) (bvadd gl_insert_~node~1.offset (_ bv3 32)) v_DerPreprocessor_4)) |c_~#gl_list~0.base|) |c_~#gl_list~0.offset|)))) is different from false [2021-10-28 09:26:02,900 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:26:02,901 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 09:26:02,901 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [646581278] [2021-10-28 09:26:02,901 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [646581278] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 09:26:02,901 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:26:02,902 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 11] imperfect sequences [] total 13 [2021-10-28 09:26:02,902 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1495360922] [2021-10-28 09:26:02,902 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-10-28 09:26:02,903 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 09:26:02,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-10-28 09:26:02,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=87, Unknown=6, NotChecked=60, Total=182 [2021-10-28 09:26:02,904 INFO L87 Difference]: Start difference. First operand 229 states and 251 transitions. Second operand has 14 states, 10 states have (on average 1.4) internal successors, (14), 9 states have internal predecessors, (14), 6 states have call successors, (9), 7 states have call predecessors, (9), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-10-28 09:26:04,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:26:04,462 INFO L93 Difference]: Finished difference Result 252 states and 276 transitions. [2021-10-28 09:26:04,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-28 09:26:04,463 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 10 states have (on average 1.4) internal successors, (14), 9 states have internal predecessors, (14), 6 states have call successors, (9), 7 states have call predecessors, (9), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 16 [2021-10-28 09:26:04,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:26:04,465 INFO L225 Difference]: With dead ends: 252 [2021-10-28 09:26:04,465 INFO L226 Difference]: Without dead ends: 252 [2021-10-28 09:26:04,466 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 14 SyntacticMatches, 8 SemanticMatches, 19 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 13.4s TimeCoverageRelationStatistics Valid=73, Invalid=239, Unknown=6, NotChecked=102, Total=420 [2021-10-28 09:26:04,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 252 states. [2021-10-28 09:26:04,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 252 to 244. [2021-10-28 09:26:04,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 244 states, 135 states have (on average 1.637037037037037) internal successors, (221), 211 states have internal predecessors, (221), 35 states have call successors, (35), 18 states have call predecessors, (35), 14 states have return successors, (19), 16 states have call predecessors, (19), 19 states have call successors, (19) [2021-10-28 09:26:04,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 244 states and 275 transitions. [2021-10-28 09:26:04,481 INFO L78 Accepts]: Start accepts. Automaton has 244 states and 275 transitions. Word has length 16 [2021-10-28 09:26:04,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:26:04,482 INFO L470 AbstractCegarLoop]: Abstraction has 244 states and 275 transitions. [2021-10-28 09:26:04,482 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 10 states have (on average 1.4) internal successors, (14), 9 states have internal predecessors, (14), 6 states have call successors, (9), 7 states have call predecessors, (9), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-10-28 09:26:04,482 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 275 transitions. [2021-10-28 09:26:04,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-28 09:26:04,483 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:26:04,483 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:26:04,497 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97823785-d5b4-4e54-83b0-29dd2d848e94/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-10-28 09:26:04,697 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97823785-d5b4-4e54-83b0-29dd2d848e94/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 09:26:04,697 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting __list_addErr1REQUIRES_VIOLATION === [__list_delErr0REQUIRES_VIOLATION, __list_delErr1REQUIRES_VIOLATION, __list_delErr2REQUIRES_VIOLATION, __list_delErr3REQUIRES_VIOLATION (and 67 more)] === [2021-10-28 09:26:04,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:26:04,698 INFO L85 PathProgramCache]: Analyzing trace with hash -1094064827, now seen corresponding path program 1 times [2021-10-28 09:26:04,698 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 09:26:04,698 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1398509219] [2021-10-28 09:26:04,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:26:04,698 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 09:26:04,699 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97823785-d5b4-4e54-83b0-29dd2d848e94/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 09:26:04,699 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97823785-d5b4-4e54-83b0-29dd2d848e94/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 09:26:04,702 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97823785-d5b4-4e54-83b0-29dd2d848e94/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-10-28 09:26:04,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:26:04,960 INFO L263 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 48 conjunts are in the unsatisfiable core [2021-10-28 09:26:04,962 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:26:05,114 INFO L354 Elim1Store]: treesize reduction 77, result has 29.4 percent of original size [2021-10-28 09:26:05,114 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 28 treesize of output 49 [2021-10-28 09:26:05,176 INFO L354 Elim1Store]: treesize reduction 33, result has 40.0 percent of original size [2021-10-28 09:26:05,176 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 49 treesize of output 63 [2021-10-28 09:26:05,816 INFO L354 Elim1Store]: treesize reduction -2, result has 108.0 percent of original size [2021-10-28 09:26:05,816 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 45 treesize of output 65 [2021-10-28 09:26:05,864 INFO L354 Elim1Store]: treesize reduction 32, result has 31.9 percent of original size [2021-10-28 09:26:05,865 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 60 treesize of output 67 [2021-10-28 09:26:06,134 INFO L354 Elim1Store]: treesize reduction 336, result has 2.0 percent of original size [2021-10-28 09:26:06,134 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 [2021-10-28 09:26:06,198 INFO L354 Elim1Store]: treesize reduction 336, result has 2.0 percent of original size [2021-10-28 09:26:06,198 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 [2021-10-28 09:26:06,413 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 [2021-10-28 09:26:06,417 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 23 treesize of output 15 [2021-10-28 09:26:06,584 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:26:06,584 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 09:26:56,430 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:26:56,430 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 09:26:56,430 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1398509219] [2021-10-28 09:26:56,430 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1398509219] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 09:26:56,431 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:26:56,431 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 9] imperfect sequences [] total 17 [2021-10-28 09:26:56,431 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1061425293] [2021-10-28 09:26:56,431 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-10-28 09:26:56,432 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 09:26:56,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-10-28 09:26:56,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=256, Unknown=5, NotChecked=0, Total=306 [2021-10-28 09:26:56,433 INFO L87 Difference]: Start difference. First operand 244 states and 275 transitions. Second operand has 18 states, 13 states have (on average 1.3846153846153846) internal successors, (18), 13 states have internal predecessors, (18), 7 states have call successors, (11), 7 states have call predecessors, (11), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-10-28 09:27:00,625 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse4 (select (select |c_#memory_$Pointer$.offset| |c_~#gl_list~0.base|) |c_~#gl_list~0.offset|))) (let ((.cse5 (bvadd .cse4 (_ bv8 32)))) (and (exists ((gl_insert_~node~1.base (_ BitVec 32))) (= (select |c_#length| gl_insert_~node~1.base) (_ bv20 32))) (= (_ bv8 32) (select |c_#length| |c___list_add_#in~next.base|)) (= (_ bv0 32) |c___list_add_#in~next.offset|) (forall ((v_gl_insert_~node~1.base_20 (_ BitVec 32))) (or (and (forall ((v_DerPreprocessor_10 (_ BitVec 32)) (v_DerPreprocessor_11 (_ BitVec 32)) (v_DerPreprocessor_12 (_ BitVec 32)) (gl_insert_~node~1.offset (_ BitVec 32)) (v_DerPreprocessor_9 (_ BitVec 32))) (let ((.cse0 (select (select (store |c_#memory_$Pointer$.offset| v_gl_insert_~node~1.base_20 (store (store (store (store (select |c_#memory_$Pointer$.offset| v_gl_insert_~node~1.base_20) gl_insert_~node~1.offset v_DerPreprocessor_9) (bvadd gl_insert_~node~1.offset (_ bv1 32)) v_DerPreprocessor_10) (bvadd (_ bv2 32) gl_insert_~node~1.offset) v_DerPreprocessor_11) (bvadd gl_insert_~node~1.offset (_ bv3 32)) v_DerPreprocessor_12)) |c_~#gl_list~0.base|) |c_~#gl_list~0.offset|))) (bvule (bvadd .cse0 (_ bv4 32)) (bvadd .cse0 (_ bv8 32))))) (forall ((v_DerPreprocessor_7 (_ BitVec 32)) (v_DerPreprocessor_6 (_ BitVec 32)) (v_DerPreprocessor_5 (_ BitVec 32)) (v_DerPreprocessor_10 (_ BitVec 32)) (v_DerPreprocessor_11 (_ BitVec 32)) (v_DerPreprocessor_12 (_ BitVec 32)) (gl_insert_~node~1.offset (_ BitVec 32)) (v_DerPreprocessor_9 (_ BitVec 32)) (v_DerPreprocessor_8 (_ BitVec 32))) (let ((.cse1 (bvadd gl_insert_~node~1.offset (_ bv1 32))) (.cse2 (bvadd (_ bv2 32) gl_insert_~node~1.offset)) (.cse3 (bvadd gl_insert_~node~1.offset (_ bv3 32)))) (bvule (bvadd (select (select (store |c_#memory_$Pointer$.offset| v_gl_insert_~node~1.base_20 (store (store (store (store (select |c_#memory_$Pointer$.offset| v_gl_insert_~node~1.base_20) gl_insert_~node~1.offset v_DerPreprocessor_9) .cse1 v_DerPreprocessor_10) .cse2 v_DerPreprocessor_11) .cse3 v_DerPreprocessor_12)) |c_~#gl_list~0.base|) |c_~#gl_list~0.offset|) (_ bv8 32)) (select (store |c_#length| v_gl_insert_~node~1.base_20 (_ bv20 32)) (select (select (store |c_#memory_$Pointer$.base| v_gl_insert_~node~1.base_20 (store (store (store (store (select |c_#memory_$Pointer$.base| v_gl_insert_~node~1.base_20) gl_insert_~node~1.offset v_DerPreprocessor_5) .cse1 v_DerPreprocessor_6) .cse2 v_DerPreprocessor_7) .cse3 v_DerPreprocessor_8)) |c_~#gl_list~0.base|) |c_~#gl_list~0.offset|)))))) (not (= (_ bv0 1) (bvneg (bvneg (select |c_#valid| v_gl_insert_~node~1.base_20))))))) (= c___list_add_~next.offset (_ bv0 32)) (= (_ bv8 32) (select |c_#length| c___list_add_~next.base)) (bvule (bvadd (_ bv4 32) .cse4) .cse5) (bvule .cse5 (select |c_#length| (select (select |c_#memory_$Pointer$.base| |c_~#gl_list~0.base|) |c_~#gl_list~0.offset|)))))) is different from false [2021-10-28 09:27:19,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:27:19,892 INFO L93 Difference]: Finished difference Result 251 states and 275 transitions. [2021-10-28 09:27:19,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-28 09:27:19,893 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 13 states have (on average 1.3846153846153846) internal successors, (18), 13 states have internal predecessors, (18), 7 states have call successors, (11), 7 states have call predecessors, (11), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 16 [2021-10-28 09:27:19,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:27:19,897 INFO L225 Difference]: With dead ends: 251 [2021-10-28 09:27:19,897 INFO L226 Difference]: Without dead ends: 251 [2021-10-28 09:27:19,898 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 12 SyntacticMatches, 3 SemanticMatches, 23 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 51.3s TimeCoverageRelationStatistics Valid=107, Invalid=443, Unknown=6, NotChecked=44, Total=600 [2021-10-28 09:27:19,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 251 states. [2021-10-28 09:27:19,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 251 to 244. [2021-10-28 09:27:19,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 244 states, 135 states have (on average 1.6296296296296295) internal successors, (220), 211 states have internal predecessors, (220), 35 states have call successors, (35), 18 states have call predecessors, (35), 14 states have return successors, (19), 16 states have call predecessors, (19), 19 states have call successors, (19) [2021-10-28 09:27:19,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 244 states and 274 transitions. [2021-10-28 09:27:19,908 INFO L78 Accepts]: Start accepts. Automaton has 244 states and 274 transitions. Word has length 16 [2021-10-28 09:27:19,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:27:19,909 INFO L470 AbstractCegarLoop]: Abstraction has 244 states and 274 transitions. [2021-10-28 09:27:19,909 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 13 states have (on average 1.3846153846153846) internal successors, (18), 13 states have internal predecessors, (18), 7 states have call successors, (11), 7 states have call predecessors, (11), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-10-28 09:27:19,909 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 274 transitions. [2021-10-28 09:27:19,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-10-28 09:27:19,910 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:27:19,910 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:27:19,925 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97823785-d5b4-4e54-83b0-29dd2d848e94/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (8)] Ended with exit code 0 [2021-10-28 09:27:20,121 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97823785-d5b4-4e54-83b0-29dd2d848e94/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 09:27:20,122 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting __list_addErr2REQUIRES_VIOLATION === [__list_delErr0REQUIRES_VIOLATION, __list_delErr1REQUIRES_VIOLATION, __list_delErr2REQUIRES_VIOLATION, __list_delErr3REQUIRES_VIOLATION (and 67 more)] === [2021-10-28 09:27:20,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:27:20,122 INFO L85 PathProgramCache]: Analyzing trace with hash 443729184, now seen corresponding path program 1 times [2021-10-28 09:27:20,122 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 09:27:20,122 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1795276183] [2021-10-28 09:27:20,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:27:20,123 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 09:27:20,123 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97823785-d5b4-4e54-83b0-29dd2d848e94/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 09:27:20,123 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97823785-d5b4-4e54-83b0-29dd2d848e94/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 09:27:20,125 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97823785-d5b4-4e54-83b0-29dd2d848e94/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-10-28 09:27:20,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:27:20,373 INFO L263 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-28 09:27:20,374 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:27:20,392 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 [2021-10-28 09:27:20,478 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:27:20,478 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 09:27:20,582 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:27:20,582 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 09:27:20,582 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1795276183] [2021-10-28 09:27:20,582 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1795276183] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 09:27:20,583 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:27:20,583 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 6 [2021-10-28 09:27:20,583 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [755268858] [2021-10-28 09:27:20,583 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-28 09:27:20,583 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 09:27:20,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-28 09:27:20,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-10-28 09:27:20,584 INFO L87 Difference]: Start difference. First operand 244 states and 274 transitions. Second operand has 7 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 5 states have internal predecessors, (10), 3 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-10-28 09:27:21,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:27:21,527 INFO L93 Difference]: Finished difference Result 256 states and 283 transitions. [2021-10-28 09:27:21,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-28 09:27:21,527 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 5 states have internal predecessors, (10), 3 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 17 [2021-10-28 09:27:21,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:27:21,530 INFO L225 Difference]: With dead ends: 256 [2021-10-28 09:27:21,531 INFO L226 Difference]: Without dead ends: 256 [2021-10-28 09:27:21,531 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 24 SyntacticMatches, 4 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-10-28 09:27:21,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 256 states. [2021-10-28 09:27:21,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 256 to 250. [2021-10-28 09:27:21,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 250 states, 141 states have (on average 1.624113475177305) internal successors, (229), 216 states have internal predecessors, (229), 35 states have call successors, (35), 19 states have call predecessors, (35), 15 states have return successors, (19), 16 states have call predecessors, (19), 19 states have call successors, (19) [2021-10-28 09:27:21,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 250 states to 250 states and 283 transitions. [2021-10-28 09:27:21,545 INFO L78 Accepts]: Start accepts. Automaton has 250 states and 283 transitions. Word has length 17 [2021-10-28 09:27:21,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:27:21,545 INFO L470 AbstractCegarLoop]: Abstraction has 250 states and 283 transitions. [2021-10-28 09:27:21,545 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 5 states have internal predecessors, (10), 3 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-10-28 09:27:21,546 INFO L276 IsEmpty]: Start isEmpty. Operand 250 states and 283 transitions. [2021-10-28 09:27:21,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-10-28 09:27:21,547 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:27:21,547 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:27:21,565 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97823785-d5b4-4e54-83b0-29dd2d848e94/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-10-28 09:27:21,757 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97823785-d5b4-4e54-83b0-29dd2d848e94/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 09:27:21,758 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting __list_addErr3REQUIRES_VIOLATION === [__list_delErr0REQUIRES_VIOLATION, __list_delErr1REQUIRES_VIOLATION, __list_delErr2REQUIRES_VIOLATION, __list_delErr3REQUIRES_VIOLATION (and 67 more)] === [2021-10-28 09:27:21,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:27:21,758 INFO L85 PathProgramCache]: Analyzing trace with hash 443729185, now seen corresponding path program 1 times [2021-10-28 09:27:21,758 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 09:27:21,759 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [956651991] [2021-10-28 09:27:21,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:27:21,759 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 09:27:21,759 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97823785-d5b4-4e54-83b0-29dd2d848e94/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 09:27:21,760 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97823785-d5b4-4e54-83b0-29dd2d848e94/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 09:27:21,761 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97823785-d5b4-4e54-83b0-29dd2d848e94/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-10-28 09:27:22,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:27:22,083 INFO L263 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 11 conjunts are in the unsatisfiable core [2021-10-28 09:27:22,085 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:27:22,123 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 [2021-10-28 09:27:22,355 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:27:22,355 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 09:27:22,959 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:27:22,959 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 09:27:22,959 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [956651991] [2021-10-28 09:27:22,960 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [956651991] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 09:27:22,960 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:27:22,960 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 11 [2021-10-28 09:27:22,960 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [703362671] [2021-10-28 09:27:22,960 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-10-28 09:27:22,960 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 09:27:22,961 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-10-28 09:27:22,961 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2021-10-28 09:27:22,961 INFO L87 Difference]: Start difference. First operand 250 states and 283 transitions. Second operand has 12 states, 11 states have (on average 1.6363636363636365) internal successors, (18), 8 states have internal predecessors, (18), 5 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-10-28 09:27:25,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:27:25,208 INFO L93 Difference]: Finished difference Result 254 states and 279 transitions. [2021-10-28 09:27:25,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-28 09:27:25,210 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 1.6363636363636365) internal successors, (18), 8 states have internal predecessors, (18), 5 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 17 [2021-10-28 09:27:25,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:27:25,212 INFO L225 Difference]: With dead ends: 254 [2021-10-28 09:27:25,212 INFO L226 Difference]: Without dead ends: 254 [2021-10-28 09:27:25,212 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2021-10-28 09:27:25,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254 states. [2021-10-28 09:27:25,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 254 to 250. [2021-10-28 09:27:25,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 250 states, 141 states have (on average 1.5957446808510638) internal successors, (225), 216 states have internal predecessors, (225), 35 states have call successors, (35), 19 states have call predecessors, (35), 15 states have return successors, (19), 16 states have call predecessors, (19), 19 states have call successors, (19) [2021-10-28 09:27:25,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 250 states to 250 states and 279 transitions. [2021-10-28 09:27:25,223 INFO L78 Accepts]: Start accepts. Automaton has 250 states and 279 transitions. Word has length 17 [2021-10-28 09:27:25,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:27:25,224 INFO L470 AbstractCegarLoop]: Abstraction has 250 states and 279 transitions. [2021-10-28 09:27:25,224 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 1.6363636363636365) internal successors, (18), 8 states have internal predecessors, (18), 5 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-10-28 09:27:25,224 INFO L276 IsEmpty]: Start isEmpty. Operand 250 states and 279 transitions. [2021-10-28 09:27:25,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-10-28 09:27:25,225 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:27:25,225 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:27:25,241 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97823785-d5b4-4e54-83b0-29dd2d848e94/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-10-28 09:27:25,441 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97823785-d5b4-4e54-83b0-29dd2d848e94/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 09:27:25,442 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting __list_addErr6REQUIRES_VIOLATION === [__list_delErr0REQUIRES_VIOLATION, __list_delErr1REQUIRES_VIOLATION, __list_delErr2REQUIRES_VIOLATION, __list_delErr3REQUIRES_VIOLATION (and 67 more)] === [2021-10-28 09:27:25,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:27:25,443 INFO L85 PathProgramCache]: Analyzing trace with hash 1221999107, now seen corresponding path program 1 times [2021-10-28 09:27:25,443 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 09:27:25,443 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1819546316] [2021-10-28 09:27:25,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:27:25,444 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 09:27:25,444 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97823785-d5b4-4e54-83b0-29dd2d848e94/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 09:27:25,445 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97823785-d5b4-4e54-83b0-29dd2d848e94/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 09:27:25,446 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97823785-d5b4-4e54-83b0-29dd2d848e94/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-10-28 09:27:25,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:27:25,744 INFO L263 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 09:27:25,746 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:27:25,839 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:27:25,839 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 09:27:25,921 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:27:25,921 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 09:27:25,922 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1819546316] [2021-10-28 09:27:25,922 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1819546316] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 09:27:25,922 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:27:25,922 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-10-28 09:27:25,922 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1917314931] [2021-10-28 09:27:25,923 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-28 09:27:25,923 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 09:27:25,924 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-28 09:27:25,924 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-28 09:27:25,924 INFO L87 Difference]: Start difference. First operand 250 states and 279 transitions. Second operand has 5 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-10-28 09:27:26,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:27:26,495 INFO L93 Difference]: Finished difference Result 249 states and 276 transitions. [2021-10-28 09:27:26,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-28 09:27:26,495 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 19 [2021-10-28 09:27:26,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:27:26,500 INFO L225 Difference]: With dead ends: 249 [2021-10-28 09:27:26,500 INFO L226 Difference]: Without dead ends: 249 [2021-10-28 09:27:26,501 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 32 SyntacticMatches, 2 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-28 09:27:26,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 249 states. [2021-10-28 09:27:26,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 249 to 249. [2021-10-28 09:27:26,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 249 states, 141 states have (on average 1.574468085106383) internal successors, (222), 215 states have internal predecessors, (222), 35 states have call successors, (35), 19 states have call predecessors, (35), 15 states have return successors, (19), 16 states have call predecessors, (19), 19 states have call successors, (19) [2021-10-28 09:27:26,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 249 states and 276 transitions. [2021-10-28 09:27:26,511 INFO L78 Accepts]: Start accepts. Automaton has 249 states and 276 transitions. Word has length 19 [2021-10-28 09:27:26,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:27:26,512 INFO L470 AbstractCegarLoop]: Abstraction has 249 states and 276 transitions. [2021-10-28 09:27:26,512 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-10-28 09:27:26,512 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 276 transitions. [2021-10-28 09:27:26,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-10-28 09:27:26,513 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:27:26,513 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:27:26,527 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97823785-d5b4-4e54-83b0-29dd2d848e94/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-10-28 09:27:26,721 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97823785-d5b4-4e54-83b0-29dd2d848e94/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 09:27:26,721 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting __list_addErr7REQUIRES_VIOLATION === [__list_delErr0REQUIRES_VIOLATION, __list_delErr1REQUIRES_VIOLATION, __list_delErr2REQUIRES_VIOLATION, __list_delErr3REQUIRES_VIOLATION (and 67 more)] === [2021-10-28 09:27:26,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:27:26,722 INFO L85 PathProgramCache]: Analyzing trace with hash 1221999108, now seen corresponding path program 1 times [2021-10-28 09:27:26,722 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 09:27:26,722 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1149111952] [2021-10-28 09:27:26,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:27:26,723 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 09:27:26,723 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97823785-d5b4-4e54-83b0-29dd2d848e94/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 09:27:26,723 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97823785-d5b4-4e54-83b0-29dd2d848e94/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 09:27:26,724 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97823785-d5b4-4e54-83b0-29dd2d848e94/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-10-28 09:27:27,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:27:27,013 INFO L263 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-28 09:27:27,014 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:27:27,210 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:27:27,210 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 09:27:27,477 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 [2021-10-28 09:27:27,737 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:27:27,738 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 09:27:27,738 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1149111952] [2021-10-28 09:27:27,738 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1149111952] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 09:27:27,738 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:27:27,738 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 13 [2021-10-28 09:27:27,738 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [269301697] [2021-10-28 09:27:27,738 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-10-28 09:27:27,739 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 09:27:27,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-10-28 09:27:27,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2021-10-28 09:27:27,740 INFO L87 Difference]: Start difference. First operand 249 states and 276 transitions. Second operand has 14 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 9 states have internal predecessors, (24), 5 states have call successors, (11), 7 states have call predecessors, (11), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-10-28 09:27:29,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:27:29,292 INFO L93 Difference]: Finished difference Result 250 states and 273 transitions. [2021-10-28 09:27:29,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-28 09:27:29,294 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 9 states have internal predecessors, (24), 5 states have call successors, (11), 7 states have call predecessors, (11), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 19 [2021-10-28 09:27:29,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:27:29,295 INFO L225 Difference]: With dead ends: 250 [2021-10-28 09:27:29,295 INFO L226 Difference]: Without dead ends: 250 [2021-10-28 09:27:29,296 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=98, Invalid=364, Unknown=0, NotChecked=0, Total=462 [2021-10-28 09:27:29,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 250 states. [2021-10-28 09:27:29,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 250 to 248. [2021-10-28 09:27:29,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 248 states, 141 states have (on average 1.553191489361702) internal successors, (219), 214 states have internal predecessors, (219), 35 states have call successors, (35), 19 states have call predecessors, (35), 15 states have return successors, (19), 16 states have call predecessors, (19), 19 states have call successors, (19) [2021-10-28 09:27:29,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 248 states to 248 states and 273 transitions. [2021-10-28 09:27:29,314 INFO L78 Accepts]: Start accepts. Automaton has 248 states and 273 transitions. Word has length 19 [2021-10-28 09:27:29,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:27:29,314 INFO L470 AbstractCegarLoop]: Abstraction has 248 states and 273 transitions. [2021-10-28 09:27:29,315 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 9 states have internal predecessors, (24), 5 states have call successors, (11), 7 states have call predecessors, (11), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-10-28 09:27:29,315 INFO L276 IsEmpty]: Start isEmpty. Operand 248 states and 273 transitions. [2021-10-28 09:27:29,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-10-28 09:27:29,316 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:27:29,316 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:27:29,332 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97823785-d5b4-4e54-83b0-29dd2d848e94/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2021-10-28 09:27:29,529 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97823785-d5b4-4e54-83b0-29dd2d848e94/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 09:27:29,529 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting failErr0ASSERT_VIOLATIONMEMORY_LEAK === [__list_delErr0REQUIRES_VIOLATION, __list_delErr1REQUIRES_VIOLATION, __list_delErr2REQUIRES_VIOLATION, __list_delErr3REQUIRES_VIOLATION (and 67 more)] === [2021-10-28 09:27:29,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:27:29,530 INFO L85 PathProgramCache]: Analyzing trace with hash 695927283, now seen corresponding path program 1 times [2021-10-28 09:27:29,530 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 09:27:29,530 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [682913208] [2021-10-28 09:27:29,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:27:29,530 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 09:27:29,530 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97823785-d5b4-4e54-83b0-29dd2d848e94/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 09:27:29,531 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97823785-d5b4-4e54-83b0-29dd2d848e94/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 09:27:29,532 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97823785-d5b4-4e54-83b0-29dd2d848e94/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2021-10-28 09:27:29,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:27:29,844 INFO L263 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 09:27:29,845 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:27:30,020 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:27:30,020 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 09:27:30,143 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:27:30,143 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 09:27:30,143 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [682913208] [2021-10-28 09:27:30,143 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [682913208] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 09:27:30,144 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:27:30,144 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-10-28 09:27:30,144 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1792933304] [2021-10-28 09:27:30,144 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-28 09:27:30,144 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 09:27:30,145 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-28 09:27:30,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-28 09:27:30,145 INFO L87 Difference]: Start difference. First operand 248 states and 273 transitions. Second operand has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 3 states have call successors, (12), 4 states have call predecessors, (12), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2021-10-28 09:27:30,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:27:30,373 INFO L93 Difference]: Finished difference Result 247 states and 271 transitions. [2021-10-28 09:27:30,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-28 09:27:30,374 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 3 states have call successors, (12), 4 states have call predecessors, (12), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 38 [2021-10-28 09:27:30,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:27:30,376 INFO L225 Difference]: With dead ends: 247 [2021-10-28 09:27:30,376 INFO L226 Difference]: Without dead ends: 247 [2021-10-28 09:27:30,376 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-28 09:27:30,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 247 states. [2021-10-28 09:27:30,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 247 to 247. [2021-10-28 09:27:30,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 247 states, 141 states have (on average 1.5460992907801419) internal successors, (218), 213 states have internal predecessors, (218), 34 states have call successors, (34), 19 states have call predecessors, (34), 15 states have return successors, (19), 16 states have call predecessors, (19), 19 states have call successors, (19) [2021-10-28 09:27:30,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 247 states to 247 states and 271 transitions. [2021-10-28 09:27:30,385 INFO L78 Accepts]: Start accepts. Automaton has 247 states and 271 transitions. Word has length 38 [2021-10-28 09:27:30,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:27:30,386 INFO L470 AbstractCegarLoop]: Abstraction has 247 states and 271 transitions. [2021-10-28 09:27:30,386 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 3 states have call successors, (12), 4 states have call predecessors, (12), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2021-10-28 09:27:30,386 INFO L276 IsEmpty]: Start isEmpty. Operand 247 states and 271 transitions. [2021-10-28 09:27:30,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-10-28 09:27:30,388 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:27:30,388 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:27:30,403 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97823785-d5b4-4e54-83b0-29dd2d848e94/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2021-10-28 09:27:30,603 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97823785-d5b4-4e54-83b0-29dd2d848e94/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 09:27:30,603 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting inspectErr0REQUIRES_VIOLATION === [__list_delErr0REQUIRES_VIOLATION, __list_delErr1REQUIRES_VIOLATION, __list_delErr2REQUIRES_VIOLATION, __list_delErr3REQUIRES_VIOLATION (and 67 more)] === [2021-10-28 09:27:30,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:27:30,604 INFO L85 PathProgramCache]: Analyzing trace with hash 695915251, now seen corresponding path program 1 times [2021-10-28 09:27:30,604 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 09:27:30,604 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [240394272] [2021-10-28 09:27:30,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:27:30,604 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 09:27:30,605 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97823785-d5b4-4e54-83b0-29dd2d848e94/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 09:27:30,605 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97823785-d5b4-4e54-83b0-29dd2d848e94/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 09:27:30,606 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97823785-d5b4-4e54-83b0-29dd2d848e94/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2021-10-28 09:27:30,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:27:30,943 INFO L263 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-28 09:27:30,944 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:27:31,171 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:27:31,171 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 09:27:31,516 INFO L354 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2021-10-28 09:27:31,516 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 [2021-10-28 09:27:31,539 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:27:31,539 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 09:27:31,539 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [240394272] [2021-10-28 09:27:31,539 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [240394272] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 09:27:31,539 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:27:31,539 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 6] imperfect sequences [] total 7 [2021-10-28 09:27:31,539 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [99403729] [2021-10-28 09:27:31,540 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-28 09:27:31,540 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 09:27:31,540 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-28 09:27:31,541 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-10-28 09:27:31,541 INFO L87 Difference]: Start difference. First operand 247 states and 271 transitions. Second operand has 8 states, 7 states have (on average 4.571428571428571) internal successors, (32), 7 states have internal predecessors, (32), 3 states have call successors, (8), 3 states have call predecessors, (8), 4 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) [2021-10-28 09:27:32,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:27:32,641 INFO L93 Difference]: Finished difference Result 242 states and 266 transitions. [2021-10-28 09:27:32,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-28 09:27:32,641 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 4.571428571428571) internal successors, (32), 7 states have internal predecessors, (32), 3 states have call successors, (8), 3 states have call predecessors, (8), 4 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) Word has length 38 [2021-10-28 09:27:32,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:27:32,643 INFO L225 Difference]: With dead ends: 242 [2021-10-28 09:27:32,644 INFO L226 Difference]: Without dead ends: 242 [2021-10-28 09:27:32,644 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 64 SyntacticMatches, 5 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2021-10-28 09:27:32,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 242 states. [2021-10-28 09:27:32,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 242 to 242. [2021-10-28 09:27:32,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 242 states, 141 states have (on average 1.5106382978723405) internal successors, (213), 208 states have internal predecessors, (213), 34 states have call successors, (34), 19 states have call predecessors, (34), 15 states have return successors, (19), 16 states have call predecessors, (19), 19 states have call successors, (19) [2021-10-28 09:27:32,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 242 states and 266 transitions. [2021-10-28 09:27:32,654 INFO L78 Accepts]: Start accepts. Automaton has 242 states and 266 transitions. Word has length 38 [2021-10-28 09:27:32,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:27:32,654 INFO L470 AbstractCegarLoop]: Abstraction has 242 states and 266 transitions. [2021-10-28 09:27:32,655 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 4.571428571428571) internal successors, (32), 7 states have internal predecessors, (32), 3 states have call successors, (8), 3 states have call predecessors, (8), 4 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) [2021-10-28 09:27:32,655 INFO L276 IsEmpty]: Start isEmpty. Operand 242 states and 266 transitions. [2021-10-28 09:27:32,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-10-28 09:27:32,656 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:27:32,656 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:27:32,681 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97823785-d5b4-4e54-83b0-29dd2d848e94/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (14)] Ended with exit code 0 [2021-10-28 09:27:32,869 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97823785-d5b4-4e54-83b0-29dd2d848e94/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 09:27:32,869 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting inspectErr1REQUIRES_VIOLATION === [__list_delErr0REQUIRES_VIOLATION, __list_delErr1REQUIRES_VIOLATION, __list_delErr2REQUIRES_VIOLATION, __list_delErr3REQUIRES_VIOLATION (and 67 more)] === [2021-10-28 09:27:32,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:27:32,870 INFO L85 PathProgramCache]: Analyzing trace with hash 695915252, now seen corresponding path program 1 times [2021-10-28 09:27:32,870 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 09:27:32,870 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1771515351] [2021-10-28 09:27:32,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:27:32,871 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 09:27:32,871 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97823785-d5b4-4e54-83b0-29dd2d848e94/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 09:27:32,872 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97823785-d5b4-4e54-83b0-29dd2d848e94/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 09:27:32,875 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97823785-d5b4-4e54-83b0-29dd2d848e94/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2021-10-28 09:27:33,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:27:33,223 INFO L263 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 11 conjunts are in the unsatisfiable core [2021-10-28 09:27:33,225 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:27:33,646 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:27:33,646 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 09:27:34,129 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 [2021-10-28 09:27:34,797 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-10-28 09:27:34,797 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 [2021-10-28 09:27:34,995 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:27:34,995 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 09:27:34,996 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1771515351] [2021-10-28 09:27:34,996 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1771515351] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 09:27:34,996 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:27:34,996 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 8] imperfect sequences [] total 14 [2021-10-28 09:27:34,996 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [738436232] [2021-10-28 09:27:34,996 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-10-28 09:27:34,997 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 09:27:34,997 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-10-28 09:27:34,997 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=168, Unknown=0, NotChecked=0, Total=210 [2021-10-28 09:27:34,998 INFO L87 Difference]: Start difference. First operand 242 states and 266 transitions. Second operand has 15 states, 13 states have (on average 4.0) internal successors, (52), 12 states have internal predecessors, (52), 7 states have call successors, (13), 5 states have call predecessors, (13), 7 states have return successors, (10), 7 states have call predecessors, (10), 5 states have call successors, (10) [2021-10-28 09:27:37,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:27:37,966 INFO L93 Difference]: Finished difference Result 240 states and 264 transitions. [2021-10-28 09:27:37,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-28 09:27:37,967 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 13 states have (on average 4.0) internal successors, (52), 12 states have internal predecessors, (52), 7 states have call successors, (13), 5 states have call predecessors, (13), 7 states have return successors, (10), 7 states have call predecessors, (10), 5 states have call successors, (10) Word has length 38 [2021-10-28 09:27:37,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:27:37,969 INFO L225 Difference]: With dead ends: 240 [2021-10-28 09:27:37,969 INFO L226 Difference]: Without dead ends: 240 [2021-10-28 09:27:37,970 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 61 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=106, Invalid=314, Unknown=0, NotChecked=0, Total=420 [2021-10-28 09:27:37,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 240 states. [2021-10-28 09:27:37,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 240 to 240. [2021-10-28 09:27:37,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 240 states, 141 states have (on average 1.49645390070922) internal successors, (211), 206 states have internal predecessors, (211), 34 states have call successors, (34), 19 states have call predecessors, (34), 15 states have return successors, (19), 16 states have call predecessors, (19), 19 states have call successors, (19) [2021-10-28 09:27:37,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240 states to 240 states and 264 transitions. [2021-10-28 09:27:37,982 INFO L78 Accepts]: Start accepts. Automaton has 240 states and 264 transitions. Word has length 38 [2021-10-28 09:27:37,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:27:37,982 INFO L470 AbstractCegarLoop]: Abstraction has 240 states and 264 transitions. [2021-10-28 09:27:37,983 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 13 states have (on average 4.0) internal successors, (52), 12 states have internal predecessors, (52), 7 states have call successors, (13), 5 states have call predecessors, (13), 7 states have return successors, (10), 7 states have call predecessors, (10), 5 states have call successors, (10) [2021-10-28 09:27:37,983 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states and 264 transitions. [2021-10-28 09:27:37,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-10-28 09:27:37,985 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:27:37,985 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:27:38,006 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97823785-d5b4-4e54-83b0-29dd2d848e94/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (15)] Ended with exit code 0 [2021-10-28 09:27:38,201 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97823785-d5b4-4e54-83b0-29dd2d848e94/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 09:27:38,202 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting __list_addErr0REQUIRES_VIOLATION === [__list_delErr0REQUIRES_VIOLATION, __list_delErr1REQUIRES_VIOLATION, __list_delErr2REQUIRES_VIOLATION, __list_delErr3REQUIRES_VIOLATION (and 67 more)] === [2021-10-28 09:27:38,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:27:38,202 INFO L85 PathProgramCache]: Analyzing trace with hash 1621786009, now seen corresponding path program 1 times [2021-10-28 09:27:38,203 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 09:27:38,203 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [437006459] [2021-10-28 09:27:38,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:27:38,204 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 09:27:38,204 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97823785-d5b4-4e54-83b0-29dd2d848e94/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 09:27:38,205 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97823785-d5b4-4e54-83b0-29dd2d848e94/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 09:27:38,246 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97823785-d5b4-4e54-83b0-29dd2d848e94/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2021-10-28 09:27:38,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:27:38,827 INFO L263 TraceCheckSpWp]: Trace formula consists of 254 conjuncts, 42 conjunts are in the unsatisfiable core [2021-10-28 09:27:38,830 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:27:38,924 INFO L354 Elim1Store]: treesize reduction 77, result has 29.4 percent of original size [2021-10-28 09:27:38,924 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 15 treesize of output 37 [2021-10-28 09:27:39,133 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 [2021-10-28 09:27:39,197 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 0 case distinctions, treesize of input 13 treesize of output 10 [2021-10-28 09:27:39,576 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 [2021-10-28 09:27:39,894 INFO L354 Elim1Store]: treesize reduction 29, result has 19.4 percent of original size [2021-10-28 09:27:39,894 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 20 [2021-10-28 09:27:40,023 INFO L354 Elim1Store]: treesize reduction 43, result has 14.0 percent of original size [2021-10-28 09:27:40,024 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 2 case distinctions, treesize of input 64 treesize of output 36 [2021-10-28 09:27:44,207 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-28 09:27:44,229 INFO L354 Elim1Store]: treesize reduction 18, result has 30.8 percent of original size [2021-10-28 09:27:44,230 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 34 treesize of output 33 [2021-10-28 09:27:44,587 INFO L354 Elim1Store]: treesize reduction 42, result has 44.0 percent of original size [2021-10-28 09:27:44,587 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 40 treesize of output 61 [2021-10-28 09:27:44,995 INFO L354 Elim1Store]: treesize reduction 566, result has 2.9 percent of original size [2021-10-28 09:27:44,996 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 6 case distinctions, treesize of input 110 treesize of output 55 [2021-10-28 09:27:45,620 INFO L354 Elim1Store]: treesize reduction 13, result has 7.1 percent of original size [2021-10-28 09:27:45,621 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 97 treesize of output 70 [2021-10-28 09:27:46,090 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 3 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:27:46,091 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 09:27:56,854 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_gl_insert_~node~1.base_42 (_ BitVec 32)) (v_DerPreprocessor_13 (_ BitVec 32)) (v_DerPreprocessor_14 (_ BitVec 32)) (gl_insert_~node~1.offset (_ BitVec 32)) (v_DerPreprocessor_15 (_ BitVec 32)) (v_DerPreprocessor_16 (_ BitVec 32))) (or (= (_ bv0 1) (bvadd (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (select (store |c_#valid| v_gl_insert_~node~1.base_42 (_ bv1 1)) (select (select (store |c_#memory_$Pointer$.base| v_gl_insert_~node~1.base_42 (store (store (store (store (select |c_#memory_$Pointer$.base| v_gl_insert_~node~1.base_42) gl_insert_~node~1.offset v_DerPreprocessor_13) (bvadd gl_insert_~node~1.offset (_ bv1 32)) v_DerPreprocessor_14) (bvadd (_ bv2 32) gl_insert_~node~1.offset) v_DerPreprocessor_15) (bvadd gl_insert_~node~1.offset (_ bv3 32)) v_DerPreprocessor_16)) |c_~#gl_list~0.base|) |c_~#gl_list~0.offset|))))))))))))) (_ bv1 1))) (not (= (_ bv0 1) (select |c_#valid| v_gl_insert_~node~1.base_42))))) is different from false [2021-10-28 09:27:57,516 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 09:27:57,516 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [437006459] [2021-10-28 09:27:57,517 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: BigInteger out of long range [2021-10-28 09:27:57,517 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1092348687] [2021-10-28 09:27:57,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:27:57,517 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-28 09:27:57,517 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97823785-d5b4-4e54-83b0-29dd2d848e94/bin/uautomizer-UnR33cPsHg/cvc4 [2021-10-28 09:27:57,519 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97823785-d5b4-4e54-83b0-29dd2d848e94/bin/uautomizer-UnR33cPsHg/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-28 09:27:57,520 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97823785-d5b4-4e54-83b0-29dd2d848e94/bin/uautomizer-UnR33cPsHg/cvc4 --incremental --print-success --lang smt (17)] Waiting until timeout for monitored process [2021-10-28 09:27:58,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:27:58,266 INFO L263 TraceCheckSpWp]: Trace formula consists of 254 conjuncts, 39 conjunts are in the unsatisfiable core [2021-10-28 09:27:58,268 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:27:58,371 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 9 treesize of output 3 [2021-10-28 09:27:58,485 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 [2021-10-28 09:27:59,441 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 [2021-10-28 09:28:00,144 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 09:28:00,145 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 [2021-10-28 09:28:00,372 INFO L354 Elim1Store]: treesize reduction 43, result has 14.0 percent of original size [2021-10-28 09:28:00,372 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 2 case distinctions, treesize of input 63 treesize of output 35 [2021-10-28 09:28:01,014 INFO L354 Elim1Store]: treesize reduction 27, result has 43.8 percent of original size [2021-10-28 09:28:01,015 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 29 treesize of output 40 [2021-10-28 09:28:01,666 INFO L354 Elim1Store]: treesize reduction 566, result has 2.9 percent of original size [2021-10-28 09:28:01,667 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 6 case distinctions, treesize of input 112 treesize of output 57 [2021-10-28 09:28:02,757 INFO L354 Elim1Store]: treesize reduction 13, result has 7.1 percent of original size [2021-10-28 09:28:02,758 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 81 treesize of output 54 [2021-10-28 09:28:03,639 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 2 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:28:03,639 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 09:28:18,979 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-10-28 09:28:18,980 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 14942 treesize of output 14540 [2021-10-28 09:28:19,678 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: BigInteger out of long range [2021-10-28 09:28:19,678 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1648791321] [2021-10-28 09:28:19,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:28:19,678 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:28:19,679 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97823785-d5b4-4e54-83b0-29dd2d848e94/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:28:19,680 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97823785-d5b4-4e54-83b0-29dd2d848e94/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 09:28:19,681 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97823785-d5b4-4e54-83b0-29dd2d848e94/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2021-10-28 09:28:20,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:28:20,239 INFO L263 TraceCheckSpWp]: Trace formula consists of 254 conjuncts, 42 conjunts are in the unsatisfiable core [2021-10-28 09:28:20,241 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:28:20,369 INFO L354 Elim1Store]: treesize reduction 77, result has 29.4 percent of original size [2021-10-28 09:28:20,369 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 15 treesize of output 37 [2021-10-28 09:28:20,602 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 9 treesize of output 7 [2021-10-28 09:28:20,650 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 0 case distinctions, treesize of input 13 treesize of output 10 [2021-10-28 09:28:20,918 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 [2021-10-28 09:28:21,099 INFO L354 Elim1Store]: treesize reduction 29, result has 19.4 percent of original size [2021-10-28 09:28:21,099 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 20 [2021-10-28 09:28:21,193 INFO L354 Elim1Store]: treesize reduction 43, result has 14.0 percent of original size [2021-10-28 09:28:21,194 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 2 case distinctions, treesize of input 64 treesize of output 36 [2021-10-28 09:28:21,348 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-28 09:28:21,370 INFO L354 Elim1Store]: treesize reduction 18, result has 30.8 percent of original size [2021-10-28 09:28:21,370 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 34 treesize of output 33 [2021-10-28 09:28:21,589 INFO L354 Elim1Store]: treesize reduction 42, result has 44.0 percent of original size [2021-10-28 09:28:21,589 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 37 treesize of output 58 [2021-10-28 09:28:21,906 INFO L354 Elim1Store]: treesize reduction 566, result has 2.9 percent of original size [2021-10-28 09:28:21,907 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 6 case distinctions, treesize of input 110 treesize of output 55 [2021-10-28 09:28:22,172 INFO L354 Elim1Store]: treesize reduction 13, result has 7.1 percent of original size [2021-10-28 09:28:22,172 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 97 treesize of output 70 [2021-10-28 09:28:22,445 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 3 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:28:22,445 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 09:28:31,273 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_gl_insert_~node~1.base_52 (_ BitVec 32)) (v_DerPreprocessor_13 (_ BitVec 32)) (v_DerPreprocessor_14 (_ BitVec 32)) (gl_insert_~node~1.offset (_ BitVec 32)) (v_DerPreprocessor_15 (_ BitVec 32)) (v_DerPreprocessor_16 (_ BitVec 32))) (or (not (= (_ bv0 1) (bvneg (select |c_#valid| v_gl_insert_~node~1.base_52)))) (= (_ bv0 1) (bvadd (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (select (store |c_#valid| v_gl_insert_~node~1.base_52 (_ bv1 1)) (select (select (store |c_#memory_$Pointer$.base| v_gl_insert_~node~1.base_52 (store (store (store (store (select |c_#memory_$Pointer$.base| v_gl_insert_~node~1.base_52) gl_insert_~node~1.offset v_DerPreprocessor_13) (bvadd gl_insert_~node~1.offset (_ bv1 32)) v_DerPreprocessor_14) (bvadd (_ bv2 32) gl_insert_~node~1.offset) v_DerPreprocessor_15) (bvadd gl_insert_~node~1.offset (_ bv3 32)) v_DerPreprocessor_16)) |c_~#gl_list~0.base|) |c_~#gl_list~0.offset|))))))))))))))) (_ bv1 1))))) is different from false [2021-10-28 09:28:31,997 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: BigInteger out of long range [2021-10-28 09:28:31,998 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:28:31,998 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [] total 0 [2021-10-28 09:28:31,998 ERROR L172 FreeRefinementEngine]: Strategy WOLF failed to provide any proof altough trace is infeasible [2021-10-28 09:28:31,998 INFO L627 BasicCegarLoop]: Counterexample might be feasible [2021-10-28 09:28:32,005 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __list_addErr0REQUIRES_VIOLATION [2021-10-28 09:28:32,006 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __list_delErr0REQUIRES_VIOLATION [2021-10-28 09:28:32,007 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __list_delErr1REQUIRES_VIOLATION [2021-10-28 09:28:32,007 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __list_delErr2REQUIRES_VIOLATION [2021-10-28 09:28:32,007 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __list_delErr3REQUIRES_VIOLATION [2021-10-28 09:28:32,007 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location gl_insertErr0REQUIRES_VIOLATION [2021-10-28 09:28:32,007 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location gl_insertErr1REQUIRES_VIOLATION [2021-10-28 09:28:32,008 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location gl_insertErr2REQUIRES_VIOLATION [2021-10-28 09:28:32,008 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location gl_insertErr3REQUIRES_VIOLATION [2021-10-28 09:28:32,008 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location gl_insertErr4REQUIRES_VIOLATION [2021-10-28 09:28:32,008 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location gl_insertErr5REQUIRES_VIOLATION [2021-10-28 09:28:32,008 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location gl_sort_passErr0REQUIRES_VIOLATION [2021-10-28 09:28:32,009 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location gl_sort_passErr1REQUIRES_VIOLATION [2021-10-28 09:28:32,009 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location gl_sort_passErr2REQUIRES_VIOLATION [2021-10-28 09:28:32,009 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location gl_sort_passErr3REQUIRES_VIOLATION [2021-10-28 09:28:32,009 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location inspectErr0REQUIRES_VIOLATION [2021-10-28 09:28:32,009 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location inspectErr1REQUIRES_VIOLATION [2021-10-28 09:28:32,010 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location inspectErr2REQUIRES_VIOLATION [2021-10-28 09:28:32,010 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location inspectErr3REQUIRES_VIOLATION [2021-10-28 09:28:32,010 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location inspectErr4REQUIRES_VIOLATION [2021-10-28 09:28:32,010 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location inspectErr5REQUIRES_VIOLATION [2021-10-28 09:28:32,010 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location inspectErr6REQUIRES_VIOLATION [2021-10-28 09:28:32,010 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location inspectErr7REQUIRES_VIOLATION [2021-10-28 09:28:32,011 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location inspectErr8REQUIRES_VIOLATION [2021-10-28 09:28:32,011 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location inspectErr9REQUIRES_VIOLATION [2021-10-28 09:28:32,011 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location inspectErr10REQUIRES_VIOLATION [2021-10-28 09:28:32,011 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location inspectErr11REQUIRES_VIOLATION [2021-10-28 09:28:32,011 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location inspectErr12REQUIRES_VIOLATION [2021-10-28 09:28:32,012 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location inspectErr13REQUIRES_VIOLATION [2021-10-28 09:28:32,012 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location inspectErr14REQUIRES_VIOLATION [2021-10-28 09:28:32,012 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location inspectErr15REQUIRES_VIOLATION [2021-10-28 09:28:32,012 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location inspectErr16REQUIRES_VIOLATION [2021-10-28 09:28:32,012 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location inspectErr17REQUIRES_VIOLATION [2021-10-28 09:28:32,012 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location inspectErr18REQUIRES_VIOLATION [2021-10-28 09:28:32,013 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location inspectErr19REQUIRES_VIOLATION [2021-10-28 09:28:32,013 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location inspectErr20REQUIRES_VIOLATION [2021-10-28 09:28:32,013 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location inspectErr21REQUIRES_VIOLATION [2021-10-28 09:28:32,013 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location inspectErr22REQUIRES_VIOLATION [2021-10-28 09:28:32,013 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location inspectErr23REQUIRES_VIOLATION [2021-10-28 09:28:32,013 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location inspectErr24REQUIRES_VIOLATION [2021-10-28 09:28:32,014 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location inspectErr25REQUIRES_VIOLATION [2021-10-28 09:28:32,014 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location inspectErr26REQUIRES_VIOLATION [2021-10-28 09:28:32,014 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location inspectErr27REQUIRES_VIOLATION [2021-10-28 09:28:32,014 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location inspectErr28REQUIRES_VIOLATION [2021-10-28 09:28:32,014 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location inspectErr29REQUIRES_VIOLATION [2021-10-28 09:28:32,015 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location val_from_nodeErr0REQUIRES_VIOLATION [2021-10-28 09:28:32,015 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location val_from_nodeErr1REQUIRES_VIOLATION [2021-10-28 09:28:32,015 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location failErr0ASSERT_VIOLATIONMEMORY_LEAK [2021-10-28 09:28:32,015 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location gl_destroyErr0REQUIRES_VIOLATION [2021-10-28 09:28:32,015 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location gl_destroyErr1REQUIRES_VIOLATION [2021-10-28 09:28:32,015 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location gl_destroyErr2REQUIRES_VIOLATION [2021-10-28 09:28:32,016 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location gl_destroyErr3REQUIRES_VIOLATION [2021-10-28 09:28:32,016 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location gl_destroyErr4REQUIRES_VIOLATION [2021-10-28 09:28:32,016 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location gl_destroyErr5REQUIRES_VIOLATION [2021-10-28 09:28:32,016 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location gl_destroyErr6ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 09:28:32,016 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location gl_destroyErr7ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 09:28:32,017 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location gl_destroyErr8ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 09:28:32,017 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __list_addErr1REQUIRES_VIOLATION [2021-10-28 09:28:32,017 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __list_addErr2REQUIRES_VIOLATION [2021-10-28 09:28:32,017 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __list_addErr3REQUIRES_VIOLATION [2021-10-28 09:28:32,017 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __list_addErr4REQUIRES_VIOLATION [2021-10-28 09:28:32,017 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __list_addErr5REQUIRES_VIOLATION [2021-10-28 09:28:32,018 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __list_addErr6REQUIRES_VIOLATION [2021-10-28 09:28:32,018 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __list_addErr7REQUIRES_VIOLATION [2021-10-28 09:28:32,018 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr0ENSURES_VIOLATIONMEMORY_LEAK [2021-10-28 09:28:32,018 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location list_addErr0REQUIRES_VIOLATION [2021-10-28 09:28:32,018 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location list_addErr1REQUIRES_VIOLATION [2021-10-28 09:28:32,019 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location list_moveErr0REQUIRES_VIOLATION [2021-10-28 09:28:32,019 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location list_moveErr1REQUIRES_VIOLATION [2021-10-28 09:28:32,019 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location list_moveErr2REQUIRES_VIOLATION [2021-10-28 09:28:32,019 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location list_moveErr3REQUIRES_VIOLATION [2021-10-28 09:28:32,039 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97823785-d5b4-4e54-83b0-29dd2d848e94/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2021-10-28 09:28:32,285 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97823785-d5b4-4e54-83b0-29dd2d848e94/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2021-10-28 09:28:32,459 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97823785-d5b4-4e54-83b0-29dd2d848e94/bin/uautomizer-UnR33cPsHg/cvc4 --incremental --print-success --lang smt (17)] Ended with exit code 0 [2021-10-28 09:28:32,649 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97823785-d5b4-4e54-83b0-29dd2d848e94/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3,18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97823785-d5b4-4e54-83b0-29dd2d848e94/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true,17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97823785-d5b4-4e54-83b0-29dd2d848e94/bin/uautomizer-UnR33cPsHg/cvc4 --incremental --print-success --lang smt [2021-10-28 09:28:32,653 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:28:32,657 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-28 09:28:32,673 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 09:28:32 BoogieIcfgContainer [2021-10-28 09:28:32,673 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-28 09:28:32,674 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 09:28:32,674 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 09:28:32,674 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 09:28:32,675 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:25:14" (3/4) ... [2021-10-28 09:28:32,681 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-28 09:28:32,681 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 09:28:32,682 INFO L168 Benchmark]: Toolchain (without parser) took 201224.39 ms. Allocated memory was 71.3 MB in the beginning and 144.7 MB in the end (delta: 73.4 MB). Free memory was 46.9 MB in the beginning and 46.4 MB in the end (delta: 519.8 kB). Peak memory consumption was 73.8 MB. Max. memory is 16.1 GB. [2021-10-28 09:28:32,683 INFO L168 Benchmark]: CDTParser took 2.36 ms. Allocated memory is still 52.4 MB. Free memory is still 32.6 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 09:28:32,683 INFO L168 Benchmark]: CACSL2BoogieTranslator took 844.88 ms. Allocated memory is still 71.3 MB. Free memory was 46.7 MB in the beginning and 48.2 MB in the end (delta: -1.5 MB). Peak memory consumption was 17.1 MB. Max. memory is 16.1 GB. [2021-10-28 09:28:32,684 INFO L168 Benchmark]: Boogie Preprocessor took 95.70 ms. Allocated memory is still 71.3 MB. Free memory was 48.2 MB in the beginning and 43.1 MB in the end (delta: 5.1 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-28 09:28:32,684 INFO L168 Benchmark]: RCFGBuilder took 1623.94 ms. Allocated memory was 71.3 MB in the beginning and 109.1 MB in the end (delta: 37.7 MB). Free memory was 43.1 MB in the beginning and 78.8 MB in the end (delta: -35.7 MB). Peak memory consumption was 26.6 MB. Max. memory is 16.1 GB. [2021-10-28 09:28:32,685 INFO L168 Benchmark]: TraceAbstraction took 198638.74 ms. Allocated memory was 109.1 MB in the beginning and 144.7 MB in the end (delta: 35.7 MB). Free memory was 78.2 MB in the beginning and 46.4 MB in the end (delta: 31.8 MB). Peak memory consumption was 88.8 MB. Max. memory is 16.1 GB. [2021-10-28 09:28:32,685 INFO L168 Benchmark]: Witness Printer took 7.48 ms. Allocated memory is still 144.7 MB. Free memory is still 46.4 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 09:28:32,689 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 2.36 ms. Allocated memory is still 52.4 MB. Free memory is still 32.6 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 844.88 ms. Allocated memory is still 71.3 MB. Free memory was 46.7 MB in the beginning and 48.2 MB in the end (delta: -1.5 MB). Peak memory consumption was 17.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 95.70 ms. Allocated memory is still 71.3 MB. Free memory was 48.2 MB in the beginning and 43.1 MB in the end (delta: 5.1 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1623.94 ms. Allocated memory was 71.3 MB in the beginning and 109.1 MB in the end (delta: 37.7 MB). Free memory was 43.1 MB in the beginning and 78.8 MB in the end (delta: -35.7 MB). Peak memory consumption was 26.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 198638.74 ms. Allocated memory was 109.1 MB in the beginning and 144.7 MB in the end (delta: 35.7 MB). Free memory was 78.2 MB in the beginning and 46.4 MB in the end (delta: 31.8 MB). Peak memory consumption was 88.8 MB. Max. memory is 16.1 GB. * Witness Printer took 7.48 ms. Allocated memory is still 144.7 MB. Free memory is still 46.4 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 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)->next = (&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: 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: 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: 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: 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: 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: 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: 947]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed 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: 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. - StatisticsResult: Ultimate Automizer benchmark data CFG has 19 procedures, 255 locations, 71 error locations. Started 1 CEGAR loops. OverallTime: 198.5s, OverallIterations: 15, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 40.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 2949 SDtfs, 3446 SDslu, 9480 SDs, 0 SdLazy, 5275 SolverSat, 525 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 31.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 584 GetRequests, 406 SyntacticMatches, 33 SemanticMatches, 145 ConstructedPredicates, 4 IntricatePredicates, 0 DeprecatedPredicates, 268 ImplicationChecksByTransitivity, 90.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=250occurred in iteration=8, InterpolantAutomatonStates: 101, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 14 MinimizatonAttempts, 68 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 1.0s SatisfiabilityAnalysisTime, 115.0s InterpolantComputationTime, 315 NumberOfCodeBlocks, 315 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 560 ConstructedInterpolants, 75 QuantifiedInterpolants, 6839 SizeOfPredicates, 143 NumberOfNonLiveVariables, 2248 ConjunctsInSsa, 208 ConjunctsInUnsatCore, 29 InterpolantComputations, 28 PerfectInterpolantSequences, 3/10 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 [2021-10-28 09:28:32,751 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97823785-d5b4-4e54-83b0-29dd2d848e94/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...