./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/memsafety/test-0102-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 9ad7fb26 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2586eab-361a-438c-8d1d-21c476cf8276/bin/utaipan-aC7eJsxGYH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2586eab-361a-438c-8d1d-21c476cf8276/bin/utaipan-aC7eJsxGYH/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2586eab-361a-438c-8d1d-21c476cf8276/bin/utaipan-aC7eJsxGYH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2586eab-361a-438c-8d1d-21c476cf8276/bin/utaipan-aC7eJsxGYH/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/memsafety/test-0102-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2586eab-361a-438c-8d1d-21c476cf8276/bin/utaipan-aC7eJsxGYH/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2586eab-361a-438c-8d1d-21c476cf8276/bin/utaipan-aC7eJsxGYH --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash d10910cb8c44ec8f982d35122d9e66670129ee7c874265953b685f7f63a30072 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-03 05:09:47,438 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 05:09:47,440 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 05:09:47,495 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 05:09:47,496 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 05:09:47,501 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 05:09:47,504 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 05:09:47,507 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 05:09:47,508 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 05:09:47,509 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 05:09:47,510 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 05:09:47,511 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 05:09:47,512 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 05:09:47,513 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 05:09:47,515 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 05:09:47,516 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 05:09:47,517 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 05:09:47,518 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 05:09:47,520 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 05:09:47,522 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 05:09:47,524 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 05:09:47,526 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 05:09:47,528 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 05:09:47,529 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 05:09:47,534 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 05:09:47,537 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 05:09:47,538 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 05:09:47,540 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 05:09:47,541 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 05:09:47,542 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 05:09:47,543 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 05:09:47,544 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 05:09:47,546 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 05:09:47,547 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 05:09:47,549 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 05:09:47,549 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 05:09:47,550 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 05:09:47,550 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 05:09:47,550 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 05:09:47,551 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 05:09:47,552 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 05:09:47,553 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2586eab-361a-438c-8d1d-21c476cf8276/bin/utaipan-aC7eJsxGYH/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2021-11-03 05:09:47,591 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 05:09:47,591 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 05:09:47,592 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-03 05:09:47,592 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-03 05:09:47,592 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-03 05:09:47,593 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-03 05:09:47,593 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-03 05:09:47,593 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-03 05:09:47,593 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-03 05:09:47,593 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-03 05:09:47,594 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-03 05:09:47,594 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-03 05:09:47,594 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-03 05:09:47,594 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-03 05:09:47,594 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-03 05:09:47,595 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-03 05:09:47,595 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-03 05:09:47,596 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 05:09:47,596 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-03 05:09:47,596 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-03 05:09:47,596 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-03 05:09:47,596 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-03 05:09:47,597 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 05:09:47,597 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-11-03 05:09:47,597 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-11-03 05:09:47,597 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-11-03 05:09:47,598 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 05:09:47,598 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-03 05:09:47,598 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-03 05:09:47,598 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 05:09:47,598 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 05:09:47,599 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 05:09:47,599 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 05:09:47,599 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 05:09:47,599 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 05:09:47,600 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-03 05:09:47,600 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-03 05:09:47,600 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 05:09:47,600 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-03 05:09:47,600 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2586eab-361a-438c-8d1d-21c476cf8276/bin/utaipan-aC7eJsxGYH/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2586eab-361a-438c-8d1d-21c476cf8276/bin/utaipan-aC7eJsxGYH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d10910cb8c44ec8f982d35122d9e66670129ee7c874265953b685f7f63a30072 [2021-11-03 05:09:47,887 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 05:09:47,916 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 05:09:47,919 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 05:09:47,920 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 05:09:47,921 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 05:09:47,922 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2586eab-361a-438c-8d1d-21c476cf8276/bin/utaipan-aC7eJsxGYH/../../sv-benchmarks/c/memsafety/test-0102-2.i [2021-11-03 05:09:48,014 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2586eab-361a-438c-8d1d-21c476cf8276/bin/utaipan-aC7eJsxGYH/data/fb7004cce/9ecc2686743b489ba58c6c956a11bde4/FLAGa7bf40a02 [2021-11-03 05:09:48,505 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 05:09:48,505 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2586eab-361a-438c-8d1d-21c476cf8276/sv-benchmarks/c/memsafety/test-0102-2.i [2021-11-03 05:09:48,523 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2586eab-361a-438c-8d1d-21c476cf8276/bin/utaipan-aC7eJsxGYH/data/fb7004cce/9ecc2686743b489ba58c6c956a11bde4/FLAGa7bf40a02 [2021-11-03 05:09:48,810 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2586eab-361a-438c-8d1d-21c476cf8276/bin/utaipan-aC7eJsxGYH/data/fb7004cce/9ecc2686743b489ba58c6c956a11bde4 [2021-11-03 05:09:48,812 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 05:09:48,813 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 05:09:48,815 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 05:09:48,815 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 05:09:48,818 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 05:09:48,819 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 05:09:48" (1/1) ... [2021-11-03 05:09:48,820 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@e68dda0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:09:48, skipping insertion in model container [2021-11-03 05:09:48,821 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 05:09:48" (1/1) ... [2021-11-03 05:09:48,828 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 05:09:48,867 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 05:09:49,182 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 05:09:49,191 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2021-11-03 05:09:49,192 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@ae9d67c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:09:49, skipping insertion in model container [2021-11-03 05:09:49,192 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-03 05:09:49,193 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-03 05:09:49,195 INFO L168 Benchmark]: Toolchain (without parser) took 380.34 ms. Allocated memory was 92.3 MB in the beginning and 123.7 MB in the end (delta: 31.5 MB). Free memory was 51.7 MB in the beginning and 96.5 MB in the end (delta: -44.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-11-03 05:09:49,196 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 92.3 MB. Free memory is still 69.8 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-03 05:09:49,197 INFO L168 Benchmark]: CACSL2BoogieTranslator took 377.83 ms. Allocated memory was 92.3 MB in the beginning and 123.7 MB in the end (delta: 31.5 MB). Free memory was 51.4 MB in the beginning and 96.5 MB in the end (delta: -45.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-11-03 05:09:49,199 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 92.3 MB. Free memory is still 69.8 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 377.83 ms. Allocated memory was 92.3 MB in the beginning and 123.7 MB in the end (delta: 31.5 MB). Free memory was 51.4 MB in the beginning and 96.5 MB in the end (delta: -45.1 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: 551]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2586eab-361a-438c-8d1d-21c476cf8276/bin/utaipan-aC7eJsxGYH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2586eab-361a-438c-8d1d-21c476cf8276/bin/utaipan-aC7eJsxGYH/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2586eab-361a-438c-8d1d-21c476cf8276/bin/utaipan-aC7eJsxGYH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2586eab-361a-438c-8d1d-21c476cf8276/bin/utaipan-aC7eJsxGYH/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/memsafety/test-0102-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2586eab-361a-438c-8d1d-21c476cf8276/bin/utaipan-aC7eJsxGYH/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2586eab-361a-438c-8d1d-21c476cf8276/bin/utaipan-aC7eJsxGYH --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash d10910cb8c44ec8f982d35122d9e66670129ee7c874265953b685f7f63a30072 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-03 05:09:51,390 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 05:09:51,392 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 05:09:51,439 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 05:09:51,440 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 05:09:51,441 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 05:09:51,443 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 05:09:51,457 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 05:09:51,459 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 05:09:51,460 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 05:09:51,461 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 05:09:51,463 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 05:09:51,463 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 05:09:51,465 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 05:09:51,466 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 05:09:51,473 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 05:09:51,475 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 05:09:51,482 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 05:09:51,489 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 05:09:51,495 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 05:09:51,501 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 05:09:51,503 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 05:09:51,506 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 05:09:51,507 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 05:09:51,515 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 05:09:51,515 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 05:09:51,516 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 05:09:51,518 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 05:09:51,519 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 05:09:51,520 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 05:09:51,520 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 05:09:51,521 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 05:09:51,523 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 05:09:51,524 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 05:09:51,526 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 05:09:51,526 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 05:09:51,527 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 05:09:51,527 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 05:09:51,527 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 05:09:51,529 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 05:09:51,530 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 05:09:51,535 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2586eab-361a-438c-8d1d-21c476cf8276/bin/utaipan-aC7eJsxGYH/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf [2021-11-03 05:09:51,574 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 05:09:51,574 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 05:09:51,575 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-03 05:09:51,575 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-03 05:09:51,575 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-03 05:09:51,576 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-03 05:09:51,576 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-03 05:09:51,576 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-03 05:09:51,576 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-03 05:09:51,577 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-03 05:09:51,577 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-03 05:09:51,578 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 05:09:51,578 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-03 05:09:51,578 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-03 05:09:51,578 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-03 05:09:51,579 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-03 05:09:51,579 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 05:09:51,579 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-11-03 05:09:51,579 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-11-03 05:09:51,579 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-11-03 05:09:51,580 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 05:09:51,580 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-03 05:09:51,580 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-03 05:09:51,580 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-03 05:09:51,581 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-03 05:09:51,581 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 05:09:51,581 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 05:09:51,581 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-03 05:09:51,582 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 05:09:51,582 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 05:09:51,582 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 05:09:51,582 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 05:09:51,583 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-03 05:09:51,583 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-03 05:09:51,583 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 05:09:51,583 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-03 05:09:51,584 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_e2586eab-361a-438c-8d1d-21c476cf8276/bin/utaipan-aC7eJsxGYH/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2586eab-361a-438c-8d1d-21c476cf8276/bin/utaipan-aC7eJsxGYH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d10910cb8c44ec8f982d35122d9e66670129ee7c874265953b685f7f63a30072 [2021-11-03 05:09:51,948 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 05:09:51,981 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 05:09:51,985 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 05:09:51,986 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 05:09:51,987 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 05:09:51,988 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2586eab-361a-438c-8d1d-21c476cf8276/bin/utaipan-aC7eJsxGYH/../../sv-benchmarks/c/memsafety/test-0102-2.i [2021-11-03 05:09:52,061 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2586eab-361a-438c-8d1d-21c476cf8276/bin/utaipan-aC7eJsxGYH/data/baa8affba/d88a9b91f22b4a48b5ef3bf949660a39/FLAG66bd0b073 [2021-11-03 05:09:52,689 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 05:09:52,690 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2586eab-361a-438c-8d1d-21c476cf8276/sv-benchmarks/c/memsafety/test-0102-2.i [2021-11-03 05:09:52,718 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2586eab-361a-438c-8d1d-21c476cf8276/bin/utaipan-aC7eJsxGYH/data/baa8affba/d88a9b91f22b4a48b5ef3bf949660a39/FLAG66bd0b073 [2021-11-03 05:09:52,935 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2586eab-361a-438c-8d1d-21c476cf8276/bin/utaipan-aC7eJsxGYH/data/baa8affba/d88a9b91f22b4a48b5ef3bf949660a39 [2021-11-03 05:09:52,937 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 05:09:52,939 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 05:09:52,941 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 05:09:52,941 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 05:09:52,962 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 05:09:52,963 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 05:09:52" (1/1) ... [2021-11-03 05:09:52,964 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3d406595 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:09:52, skipping insertion in model container [2021-11-03 05:09:52,964 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 05:09:52" (1/1) ... [2021-11-03 05:09:52,971 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 05:09:53,032 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 05:09:53,389 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 05:09:53,401 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-03 05:09:53,421 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 05:09:53,468 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 05:09:53,487 INFO L203 MainTranslator]: Completed pre-run [2021-11-03 05:09:53,551 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 05:09:53,594 INFO L208 MainTranslator]: Completed translation [2021-11-03 05:09:53,595 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:09:53 WrapperNode [2021-11-03 05:09:53,595 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-03 05:09:53,596 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-03 05:09:53,597 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-03 05:09:53,597 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-03 05:09:53,604 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:09:53" (1/1) ... [2021-11-03 05:09:53,622 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:09:53" (1/1) ... [2021-11-03 05:09:53,652 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-03 05:09:53,653 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-03 05:09:53,653 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-03 05:09:53,653 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-03 05:09:53,662 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:09:53" (1/1) ... [2021-11-03 05:09:53,662 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:09:53" (1/1) ... [2021-11-03 05:09:53,667 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:09:53" (1/1) ... [2021-11-03 05:09:53,668 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:09:53" (1/1) ... [2021-11-03 05:09:53,706 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:09:53" (1/1) ... [2021-11-03 05:09:53,710 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:09:53" (1/1) ... [2021-11-03 05:09:53,716 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:09:53" (1/1) ... [2021-11-03 05:09:53,726 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-03 05:09:53,727 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-03 05:09:53,727 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-03 05:09:53,727 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-03 05:09:53,728 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:09:53" (1/1) ... [2021-11-03 05:09:53,742 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 05:09:53,753 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2586eab-361a-438c-8d1d-21c476cf8276/bin/utaipan-aC7eJsxGYH/z3 [2021-11-03 05:09:53,763 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2586eab-361a-438c-8d1d-21c476cf8276/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-03 05:09:53,766 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2586eab-361a-438c-8d1d-21c476cf8276/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-03 05:09:53,800 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-03 05:09:53,801 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-03 05:09:53,801 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-03 05:09:53,801 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-03 05:09:53,801 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-03 05:09:53,802 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-03 05:09:53,804 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-03 05:09:53,804 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-03 05:09:53,804 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-03 05:09:53,804 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-03 05:09:54,616 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-03 05:09:54,616 INFO L299 CfgBuilder]: Removed 37 assume(true) statements. [2021-11-03 05:09:54,618 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 05:09:54 BoogieIcfgContainer [2021-11-03 05:09:54,618 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-03 05:09:54,620 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-03 05:09:54,620 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-03 05:09:54,623 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-03 05:09:54,623 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 05:09:52" (1/3) ... [2021-11-03 05:09:54,624 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49b1e098 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 05:09:54, skipping insertion in model container [2021-11-03 05:09:54,624 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:09:53" (2/3) ... [2021-11-03 05:09:54,625 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49b1e098 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 05:09:54, skipping insertion in model container [2021-11-03 05:09:54,625 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 05:09:54" (3/3) ... [2021-11-03 05:09:54,626 INFO L111 eAbstractionObserver]: Analyzing ICFG test-0102-2.i [2021-11-03 05:09:54,631 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-03 05:09:54,631 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 57 error locations. [2021-11-03 05:09:54,671 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-03 05:09:54,678 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-03 05:09:54,678 INFO L340 AbstractCegarLoop]: Starting to check reachability of 57 error locations. [2021-11-03 05:09:54,693 INFO L276 IsEmpty]: Start isEmpty. Operand has 121 states, 63 states have (on average 2.111111111111111) internal successors, (133), 120 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:09:54,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-11-03 05:09:54,699 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:09:54,700 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-11-03 05:09:54,700 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr42REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 53 more)] === [2021-11-03 05:09:54,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:09:54,705 INFO L85 PathProgramCache]: Analyzing trace with hash 28828812, now seen corresponding path program 1 times [2021-11-03 05:09:54,716 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:09:54,717 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1985834582] [2021-11-03 05:09:54,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:09:54,718 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:09:54,718 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2586eab-361a-438c-8d1d-21c476cf8276/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:09:54,721 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2586eab-361a-438c-8d1d-21c476cf8276/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:09:54,728 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2586eab-361a-438c-8d1d-21c476cf8276/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-03 05:09:54,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:09:54,812 INFO L263 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-03 05:09:54,816 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:09:54,877 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:09:54,882 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:09:54,902 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:09:54,902 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:09:54,903 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1985834582] [2021-11-03 05:09:54,904 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1985834582] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:09:54,904 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:09:54,905 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-03 05:09:54,906 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [652944178] [2021-11-03 05:09:54,911 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-03 05:09:54,912 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:09:54,929 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-03 05:09:54,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-03 05:09:54,934 INFO L87 Difference]: Start difference. First operand has 121 states, 63 states have (on average 2.111111111111111) internal successors, (133), 120 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:09:54,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:09:54,949 INFO L93 Difference]: Finished difference Result 121 states and 125 transitions. [2021-11-03 05:09:54,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-03 05:09:54,951 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2021-11-03 05:09:54,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:09:54,961 INFO L225 Difference]: With dead ends: 121 [2021-11-03 05:09:54,961 INFO L226 Difference]: Without dead ends: 119 [2021-11-03 05:09:54,970 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-03 05:09:54,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2021-11-03 05:09:55,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 119. [2021-11-03 05:09:55,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119 states, 62 states have (on average 1.9838709677419355) internal successors, (123), 118 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:09:55,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 123 transitions. [2021-11-03 05:09:55,005 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 123 transitions. Word has length 5 [2021-11-03 05:09:55,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:09:55,005 INFO L470 AbstractCegarLoop]: Abstraction has 119 states and 123 transitions. [2021-11-03 05:09:55,005 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:09:55,006 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 123 transitions. [2021-11-03 05:09:55,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-11-03 05:09:55,006 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:09:55,006 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-11-03 05:09:55,021 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2586eab-361a-438c-8d1d-21c476cf8276/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-03 05:09:55,221 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2586eab-361a-438c-8d1d-21c476cf8276/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:09:55,221 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 53 more)] === [2021-11-03 05:09:55,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:09:55,222 INFO L85 PathProgramCache]: Analyzing trace with hash 889540459, now seen corresponding path program 1 times [2021-11-03 05:09:55,223 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:09:55,223 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1061230062] [2021-11-03 05:09:55,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:09:55,223 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:09:55,223 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2586eab-361a-438c-8d1d-21c476cf8276/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:09:55,224 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2586eab-361a-438c-8d1d-21c476cf8276/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:09:55,227 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2586eab-361a-438c-8d1d-21c476cf8276/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-03 05:09:55,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:09:55,308 INFO L263 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-03 05:09:55,309 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:09:55,381 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-03 05:09:55,484 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:09:55,485 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:09:55,641 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:09:55,641 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:09:55,642 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1061230062] [2021-11-03 05:09:55,642 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1061230062] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:09:55,642 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:09:55,642 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2021-11-03 05:09:55,643 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1854445480] [2021-11-03 05:09:55,644 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-03 05:09:55,644 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:09:55,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-03 05:09:55,646 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-03 05:09:55,646 INFO L87 Difference]: Start difference. First operand 119 states and 123 transitions. Second operand has 6 states, 5 states have (on average 2.0) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:09:56,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:09:56,642 INFO L93 Difference]: Finished difference Result 119 states and 123 transitions. [2021-11-03 05:09:56,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-03 05:09:56,648 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.0) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2021-11-03 05:09:56,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:09:56,655 INFO L225 Difference]: With dead ends: 119 [2021-11-03 05:09:56,656 INFO L226 Difference]: Without dead ends: 119 [2021-11-03 05:09:56,658 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-03 05:09:56,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2021-11-03 05:09:56,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 117. [2021-11-03 05:09:56,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117 states, 62 states have (on average 1.9516129032258065) internal successors, (121), 116 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:09:56,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 121 transitions. [2021-11-03 05:09:56,682 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 121 transitions. Word has length 6 [2021-11-03 05:09:56,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:09:56,684 INFO L470 AbstractCegarLoop]: Abstraction has 117 states and 121 transitions. [2021-11-03 05:09:56,684 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.0) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:09:56,685 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 121 transitions. [2021-11-03 05:09:56,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-11-03 05:09:56,685 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:09:56,686 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-11-03 05:09:56,694 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2586eab-361a-438c-8d1d-21c476cf8276/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (3)] Ended with exit code 0 [2021-11-03 05:09:56,889 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2586eab-361a-438c-8d1d-21c476cf8276/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:09:56,889 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 53 more)] === [2021-11-03 05:09:56,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:09:56,890 INFO L85 PathProgramCache]: Analyzing trace with hash 889540458, now seen corresponding path program 1 times [2021-11-03 05:09:56,890 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:09:56,891 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1746568042] [2021-11-03 05:09:56,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:09:56,891 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:09:56,891 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2586eab-361a-438c-8d1d-21c476cf8276/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:09:56,894 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2586eab-361a-438c-8d1d-21c476cf8276/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:09:56,895 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2586eab-361a-438c-8d1d-21c476cf8276/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-03 05:09:56,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:09:56,957 INFO L263 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-03 05:09:56,958 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:09:56,978 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-03 05:09:57,014 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:09:57,016 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:09:57,049 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:09:57,049 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:09:57,049 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1746568042] [2021-11-03 05:09:57,050 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1746568042] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:09:57,050 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:09:57,050 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-03 05:09:57,050 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [100821106] [2021-11-03 05:09:57,051 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 05:09:57,051 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:09:57,056 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 05:09:57,057 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-03 05:09:57,057 INFO L87 Difference]: Start difference. First operand 117 states and 121 transitions. Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:09:57,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:09:57,382 INFO L93 Difference]: Finished difference Result 143 states and 149 transitions. [2021-11-03 05:09:57,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 05:09:57,383 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2021-11-03 05:09:57,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:09:57,384 INFO L225 Difference]: With dead ends: 143 [2021-11-03 05:09:57,385 INFO L226 Difference]: Without dead ends: 143 [2021-11-03 05:09:57,385 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-03 05:09:57,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states. [2021-11-03 05:09:57,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 113. [2021-11-03 05:09:57,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113 states, 62 states have (on average 1.8870967741935485) internal successors, (117), 112 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:09:57,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 117 transitions. [2021-11-03 05:09:57,401 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 117 transitions. Word has length 6 [2021-11-03 05:09:57,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:09:57,402 INFO L470 AbstractCegarLoop]: Abstraction has 113 states and 117 transitions. [2021-11-03 05:09:57,402 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:09:57,402 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 117 transitions. [2021-11-03 05:09:57,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-11-03 05:09:57,403 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:09:57,403 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:09:57,416 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2586eab-361a-438c-8d1d-21c476cf8276/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-03 05:09:57,614 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2586eab-361a-438c-8d1d-21c476cf8276/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:09:57,616 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 53 more)] === [2021-11-03 05:09:57,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:09:57,617 INFO L85 PathProgramCache]: Analyzing trace with hash -1986689261, now seen corresponding path program 1 times [2021-11-03 05:09:57,617 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:09:57,618 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [448038910] [2021-11-03 05:09:57,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:09:57,618 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:09:57,618 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2586eab-361a-438c-8d1d-21c476cf8276/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:09:57,619 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2586eab-361a-438c-8d1d-21c476cf8276/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:09:57,620 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2586eab-361a-438c-8d1d-21c476cf8276/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-03 05:09:57,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:09:57,706 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-03 05:09:57,707 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:09:57,736 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-03 05:09:57,762 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:09:57,762 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:09:57,855 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:09:57,855 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:09:57,855 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [448038910] [2021-11-03 05:09:57,855 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [448038910] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:09:57,856 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:09:57,856 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2021-11-03 05:09:57,856 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [170593635] [2021-11-03 05:09:57,856 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 05:09:57,856 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:09:57,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 05:09:57,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-03 05:09:57,858 INFO L87 Difference]: Start difference. First operand 113 states and 117 transitions. Second operand has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:09:58,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:09:58,162 INFO L93 Difference]: Finished difference Result 118 states and 122 transitions. [2021-11-03 05:09:58,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 05:09:58,163 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2021-11-03 05:09:58,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:09:58,165 INFO L225 Difference]: With dead ends: 118 [2021-11-03 05:09:58,165 INFO L226 Difference]: Without dead ends: 118 [2021-11-03 05:09:58,165 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-03 05:09:58,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2021-11-03 05:09:58,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 111. [2021-11-03 05:09:58,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 62 states have (on average 1.8548387096774193) internal successors, (115), 110 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:09:58,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 115 transitions. [2021-11-03 05:09:58,173 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 115 transitions. Word has length 10 [2021-11-03 05:09:58,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:09:58,174 INFO L470 AbstractCegarLoop]: Abstraction has 111 states and 115 transitions. [2021-11-03 05:09:58,174 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:09:58,174 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 115 transitions. [2021-11-03 05:09:58,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-11-03 05:09:58,175 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:09:58,175 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:09:58,189 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2586eab-361a-438c-8d1d-21c476cf8276/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-03 05:09:58,375 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2586eab-361a-438c-8d1d-21c476cf8276/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:09:58,376 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 53 more)] === [2021-11-03 05:09:58,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:09:58,376 INFO L85 PathProgramCache]: Analyzing trace with hash -1986689262, now seen corresponding path program 1 times [2021-11-03 05:09:58,376 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:09:58,377 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1960820766] [2021-11-03 05:09:58,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:09:58,377 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:09:58,377 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2586eab-361a-438c-8d1d-21c476cf8276/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:09:58,378 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2586eab-361a-438c-8d1d-21c476cf8276/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:09:58,380 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2586eab-361a-438c-8d1d-21c476cf8276/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-03 05:09:58,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:09:58,463 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-03 05:09:58,464 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:09:58,489 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-03 05:09:58,510 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:09:58,511 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:09:58,542 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:09:58,542 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:09:58,542 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1960820766] [2021-11-03 05:09:58,542 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1960820766] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:09:58,548 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:09:58,548 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-03 05:09:58,549 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1575201884] [2021-11-03 05:09:58,550 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-03 05:09:58,550 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:09:58,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-03 05:09:58,551 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 05:09:58,551 INFO L87 Difference]: Start difference. First operand 111 states and 115 transitions. Second operand has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:09:58,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:09:58,797 INFO L93 Difference]: Finished difference Result 142 states and 148 transitions. [2021-11-03 05:09:58,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-03 05:09:58,798 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2021-11-03 05:09:58,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:09:58,799 INFO L225 Difference]: With dead ends: 142 [2021-11-03 05:09:58,799 INFO L226 Difference]: Without dead ends: 142 [2021-11-03 05:09:58,800 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 05:09:58,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2021-11-03 05:09:58,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 109. [2021-11-03 05:09:58,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109 states, 62 states have (on average 1.8225806451612903) internal successors, (113), 108 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:09:58,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 113 transitions. [2021-11-03 05:09:58,807 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 113 transitions. Word has length 10 [2021-11-03 05:09:58,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:09:58,808 INFO L470 AbstractCegarLoop]: Abstraction has 109 states and 113 transitions. [2021-11-03 05:09:58,808 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:09:58,808 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 113 transitions. [2021-11-03 05:09:58,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-11-03 05:09:58,809 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:09:58,809 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:09:58,823 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2586eab-361a-438c-8d1d-21c476cf8276/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-03 05:09:59,022 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2586eab-361a-438c-8d1d-21c476cf8276/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:09:59,023 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr6REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 53 more)] === [2021-11-03 05:09:59,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:09:59,024 INFO L85 PathProgramCache]: Analyzing trace with hash 2052066035, now seen corresponding path program 1 times [2021-11-03 05:09:59,024 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:09:59,024 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1686509353] [2021-11-03 05:09:59,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:09:59,025 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:09:59,025 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2586eab-361a-438c-8d1d-21c476cf8276/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:09:59,026 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2586eab-361a-438c-8d1d-21c476cf8276/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:09:59,032 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2586eab-361a-438c-8d1d-21c476cf8276/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-03 05:09:59,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:09:59,146 INFO L263 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-03 05:09:59,147 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:09:59,161 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-03 05:09:59,229 INFO L354 Elim1Store]: treesize reduction 12, result has 40.0 percent of original size [2021-11-03 05:09:59,230 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 21 [2021-11-03 05:09:59,351 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:09:59,352 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:09:59,451 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:09:59,451 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:09:59,454 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1686509353] [2021-11-03 05:09:59,454 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1686509353] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:09:59,454 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:09:59,455 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 7 [2021-11-03 05:09:59,455 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [773572154] [2021-11-03 05:09:59,455 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-03 05:09:59,457 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:09:59,458 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-03 05:09:59,458 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-11-03 05:09:59,459 INFO L87 Difference]: Start difference. First operand 109 states and 113 transitions. Second operand has 8 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:09:59,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:09:59,942 INFO L93 Difference]: Finished difference Result 143 states and 149 transitions. [2021-11-03 05:09:59,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-03 05:09:59,942 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2021-11-03 05:09:59,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:09:59,944 INFO L225 Difference]: With dead ends: 143 [2021-11-03 05:09:59,944 INFO L226 Difference]: Without dead ends: 143 [2021-11-03 05:09:59,944 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 14 SyntacticMatches, 2 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 2 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2021-11-03 05:09:59,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states. [2021-11-03 05:09:59,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 107. [2021-11-03 05:09:59,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107 states, 62 states have (on average 1.7903225806451613) internal successors, (111), 106 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:09:59,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 111 transitions. [2021-11-03 05:09:59,949 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 111 transitions. Word has length 12 [2021-11-03 05:09:59,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:09:59,950 INFO L470 AbstractCegarLoop]: Abstraction has 107 states and 111 transitions. [2021-11-03 05:09:59,950 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:09:59,950 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 111 transitions. [2021-11-03 05:09:59,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-11-03 05:09:59,950 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:09:59,951 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:09:59,968 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2586eab-361a-438c-8d1d-21c476cf8276/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-03 05:10:00,151 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2586eab-361a-438c-8d1d-21c476cf8276/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:10:00,151 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr7REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 53 more)] === [2021-11-03 05:10:00,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:10:00,152 INFO L85 PathProgramCache]: Analyzing trace with hash 2052066036, now seen corresponding path program 1 times [2021-11-03 05:10:00,152 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:10:00,152 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [800218241] [2021-11-03 05:10:00,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:10:00,152 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:10:00,152 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2586eab-361a-438c-8d1d-21c476cf8276/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:10:00,153 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2586eab-361a-438c-8d1d-21c476cf8276/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:10:00,154 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2586eab-361a-438c-8d1d-21c476cf8276/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-03 05:10:00,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:10:00,306 INFO L263 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 18 conjunts are in the unsatisfiable core [2021-11-03 05:10:00,307 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:10:00,325 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-03 05:10:00,331 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-03 05:10:00,477 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-11-03 05:10:00,478 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 29 treesize of output 31 [2021-11-03 05:10:00,487 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-03 05:10:00,487 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 24 [2021-11-03 05:10:00,597 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:10:00,597 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:10:01,409 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:10:01,410 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:10:01,410 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [800218241] [2021-11-03 05:10:01,410 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [800218241] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:10:01,410 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:10:01,410 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 9 [2021-11-03 05:10:01,411 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1760779096] [2021-11-03 05:10:01,411 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-03 05:10:01,411 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:10:01,412 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-03 05:10:01,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2021-11-03 05:10:01,412 INFO L87 Difference]: Start difference. First operand 107 states and 111 transitions. Second operand has 10 states, 9 states have (on average 2.4444444444444446) internal successors, (22), 10 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:10:22,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:10:22,847 INFO L93 Difference]: Finished difference Result 137 states and 143 transitions. [2021-11-03 05:10:22,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-03 05:10:22,849 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.4444444444444446) internal successors, (22), 10 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2021-11-03 05:10:22,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:10:22,851 INFO L225 Difference]: With dead ends: 137 [2021-11-03 05:10:22,851 INFO L226 Difference]: Without dead ends: 137 [2021-11-03 05:10:22,852 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 6.0s TimeCoverageRelationStatistics Valid=95, Invalid=211, Unknown=0, NotChecked=0, Total=306 [2021-11-03 05:10:22,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2021-11-03 05:10:22,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 105. [2021-11-03 05:10:22,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 62 states have (on average 1.7580645161290323) internal successors, (109), 104 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:10:22,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 109 transitions. [2021-11-03 05:10:22,857 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 109 transitions. Word has length 12 [2021-11-03 05:10:22,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:10:22,857 INFO L470 AbstractCegarLoop]: Abstraction has 105 states and 109 transitions. [2021-11-03 05:10:22,857 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.4444444444444446) internal successors, (22), 10 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:10:22,858 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 109 transitions. [2021-11-03 05:10:22,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-11-03 05:10:22,858 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:10:22,858 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:10:22,888 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2586eab-361a-438c-8d1d-21c476cf8276/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-03 05:10:23,076 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2586eab-361a-438c-8d1d-21c476cf8276/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:10:23,076 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr8REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 53 more)] === [2021-11-03 05:10:23,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:10:23,076 INFO L85 PathProgramCache]: Analyzing trace with hash 645470996, now seen corresponding path program 1 times [2021-11-03 05:10:23,077 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:10:23,077 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1765185187] [2021-11-03 05:10:23,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:10:23,077 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:10:23,077 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2586eab-361a-438c-8d1d-21c476cf8276/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:10:23,079 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2586eab-361a-438c-8d1d-21c476cf8276/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:10:23,080 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2586eab-361a-438c-8d1d-21c476cf8276/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-03 05:10:23,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:10:23,229 INFO L263 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-03 05:10:23,230 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:10:23,291 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:10:23,292 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:10:23,329 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:10:23,330 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:10:23,330 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1765185187] [2021-11-03 05:10:23,330 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1765185187] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:10:23,330 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:10:23,330 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-03 05:10:23,330 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2081494778] [2021-11-03 05:10:23,331 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 05:10:23,331 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:10:23,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 05:10:23,331 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-03 05:10:23,332 INFO L87 Difference]: Start difference. First operand 105 states and 109 transitions. Second operand has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:10:23,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:10:23,802 INFO L93 Difference]: Finished difference Result 140 states and 146 transitions. [2021-11-03 05:10:23,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-03 05:10:23,802 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2021-11-03 05:10:23,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:10:23,803 INFO L225 Difference]: With dead ends: 140 [2021-11-03 05:10:23,804 INFO L226 Difference]: Without dead ends: 140 [2021-11-03 05:10:23,804 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-03 05:10:23,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2021-11-03 05:10:23,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 102. [2021-11-03 05:10:23,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102 states, 62 states have (on average 1.7096774193548387) internal successors, (106), 101 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:10:23,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 106 transitions. [2021-11-03 05:10:23,809 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 106 transitions. Word has length 14 [2021-11-03 05:10:23,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:10:23,809 INFO L470 AbstractCegarLoop]: Abstraction has 102 states and 106 transitions. [2021-11-03 05:10:23,809 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:10:23,809 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 106 transitions. [2021-11-03 05:10:23,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-11-03 05:10:23,810 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:10:23,810 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:10:23,820 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2586eab-361a-438c-8d1d-21c476cf8276/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-11-03 05:10:24,016 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2586eab-361a-438c-8d1d-21c476cf8276/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:10:24,017 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr9REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 53 more)] === [2021-11-03 05:10:24,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:10:24,017 INFO L85 PathProgramCache]: Analyzing trace with hash 645470997, now seen corresponding path program 1 times [2021-11-03 05:10:24,017 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:10:24,018 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [144740917] [2021-11-03 05:10:24,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:10:24,018 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:10:24,018 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2586eab-361a-438c-8d1d-21c476cf8276/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:10:24,019 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2586eab-361a-438c-8d1d-21c476cf8276/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:10:24,027 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2586eab-361a-438c-8d1d-21c476cf8276/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-11-03 05:10:24,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:10:24,152 INFO L263 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 13 conjunts are in the unsatisfiable core [2021-11-03 05:10:24,153 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:10:24,314 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:10:24,314 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:10:24,509 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 6 [2021-11-03 05:10:24,762 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:10:24,763 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:10:24,763 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [144740917] [2021-11-03 05:10:24,763 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [144740917] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:10:24,763 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:10:24,764 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 13 [2021-11-03 05:10:24,764 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [372768817] [2021-11-03 05:10:24,764 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-11-03 05:10:24,764 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:10:24,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-11-03 05:10:24,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2021-11-03 05:10:24,766 INFO L87 Difference]: Start difference. First operand 102 states and 106 transitions. Second operand has 14 states, 13 states have (on average 2.0) internal successors, (26), 14 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:10:27,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:10:27,286 INFO L93 Difference]: Finished difference Result 116 states and 120 transitions. [2021-11-03 05:10:27,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-11-03 05:10:27,288 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.0) internal successors, (26), 14 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2021-11-03 05:10:27,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:10:27,289 INFO L225 Difference]: With dead ends: 116 [2021-11-03 05:10:27,289 INFO L226 Difference]: Without dead ends: 116 [2021-11-03 05:10:27,290 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 98 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=196, Invalid=506, Unknown=0, NotChecked=0, Total=702 [2021-11-03 05:10:27,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2021-11-03 05:10:27,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 99. [2021-11-03 05:10:27,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 62 states have (on average 1.6612903225806452) internal successors, (103), 98 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:10:27,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 103 transitions. [2021-11-03 05:10:27,293 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 103 transitions. Word has length 14 [2021-11-03 05:10:27,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:10:27,293 INFO L470 AbstractCegarLoop]: Abstraction has 99 states and 103 transitions. [2021-11-03 05:10:27,294 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.0) internal successors, (26), 14 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:10:27,294 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 103 transitions. [2021-11-03 05:10:27,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-11-03 05:10:27,294 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:10:27,294 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:10:27,309 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2586eab-361a-438c-8d1d-21c476cf8276/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-11-03 05:10:27,495 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2586eab-361a-438c-8d1d-21c476cf8276/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:10:27,495 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr10REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 53 more)] === [2021-11-03 05:10:27,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:10:27,495 INFO L85 PathProgramCache]: Analyzing trace with hash -1465235593, now seen corresponding path program 1 times [2021-11-03 05:10:27,496 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:10:27,496 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [884872687] [2021-11-03 05:10:27,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:10:27,496 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:10:27,496 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2586eab-361a-438c-8d1d-21c476cf8276/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:10:27,497 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2586eab-361a-438c-8d1d-21c476cf8276/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:10:27,499 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2586eab-361a-438c-8d1d-21c476cf8276/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-11-03 05:10:27,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:10:27,649 INFO L263 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-03 05:10:27,650 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:10:27,669 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-03 05:10:27,735 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:10:27,736 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:10:27,804 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:10:27,805 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:10:27,805 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [884872687] [2021-11-03 05:10:27,805 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [884872687] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:10:27,805 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:10:27,805 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-03 05:10:27,805 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1226090962] [2021-11-03 05:10:27,806 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-03 05:10:27,806 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:10:27,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-03 05:10:27,807 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-03 05:10:27,807 INFO L87 Difference]: Start difference. First operand 99 states and 103 transitions. Second operand has 5 states, 4 states have (on average 3.75) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:10:28,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:10:28,297 INFO L93 Difference]: Finished difference Result 136 states and 142 transitions. [2021-11-03 05:10:28,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-03 05:10:28,298 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2021-11-03 05:10:28,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:10:28,299 INFO L225 Difference]: With dead ends: 136 [2021-11-03 05:10:28,299 INFO L226 Difference]: Without dead ends: 136 [2021-11-03 05:10:28,300 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 24 SyntacticMatches, 2 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-03 05:10:28,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2021-11-03 05:10:28,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 94. [2021-11-03 05:10:28,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 62 states have (on average 1.5806451612903225) internal successors, (98), 93 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:10:28,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 98 transitions. [2021-11-03 05:10:28,303 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 98 transitions. Word has length 15 [2021-11-03 05:10:28,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:10:28,304 INFO L470 AbstractCegarLoop]: Abstraction has 94 states and 98 transitions. [2021-11-03 05:10:28,305 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:10:28,305 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 98 transitions. [2021-11-03 05:10:28,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-11-03 05:10:28,305 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:10:28,306 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:10:28,326 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2586eab-361a-438c-8d1d-21c476cf8276/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-11-03 05:10:28,516 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2586eab-361a-438c-8d1d-21c476cf8276/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:10:28,516 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr11REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 53 more)] === [2021-11-03 05:10:28,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:10:28,517 INFO L85 PathProgramCache]: Analyzing trace with hash -1465235592, now seen corresponding path program 1 times [2021-11-03 05:10:28,517 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:10:28,517 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [663091905] [2021-11-03 05:10:28,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:10:28,517 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:10:28,517 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2586eab-361a-438c-8d1d-21c476cf8276/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:10:28,518 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2586eab-361a-438c-8d1d-21c476cf8276/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:10:28,519 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2586eab-361a-438c-8d1d-21c476cf8276/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-11-03 05:10:28,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:10:28,690 INFO L263 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-03 05:10:28,691 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:10:28,720 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-03 05:10:28,861 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:10:28,861 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:10:29,162 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:10:29,162 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:10:29,162 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [663091905] [2021-11-03 05:10:29,163 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [663091905] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:10:29,163 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:10:29,163 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 7 [2021-11-03 05:10:29,163 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1203390754] [2021-11-03 05:10:29,164 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-03 05:10:29,164 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:10:29,164 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-03 05:10:29,165 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-03 05:10:29,165 INFO L87 Difference]: Start difference. First operand 94 states and 98 transitions. Second operand has 8 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 8 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:10:30,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:10:30,187 INFO L93 Difference]: Finished difference Result 102 states and 106 transitions. [2021-11-03 05:10:30,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-03 05:10:30,188 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 8 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2021-11-03 05:10:30,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:10:30,189 INFO L225 Difference]: With dead ends: 102 [2021-11-03 05:10:30,189 INFO L226 Difference]: Without dead ends: 102 [2021-11-03 05:10:30,189 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2021-11-03 05:10:30,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2021-11-03 05:10:30,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 90. [2021-11-03 05:10:30,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 62 states have (on average 1.5161290322580645) internal successors, (94), 89 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:10:30,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 94 transitions. [2021-11-03 05:10:30,192 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 94 transitions. Word has length 15 [2021-11-03 05:10:30,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:10:30,193 INFO L470 AbstractCegarLoop]: Abstraction has 90 states and 94 transitions. [2021-11-03 05:10:30,193 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 8 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:10:30,193 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 94 transitions. [2021-11-03 05:10:30,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-11-03 05:10:30,194 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:10:30,194 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:10:30,203 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2586eab-361a-438c-8d1d-21c476cf8276/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2021-11-03 05:10:30,394 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2586eab-361a-438c-8d1d-21c476cf8276/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:10:30,395 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr14REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 53 more)] === [2021-11-03 05:10:30,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:10:30,395 INFO L85 PathProgramCache]: Analyzing trace with hash 657868666, now seen corresponding path program 1 times [2021-11-03 05:10:30,396 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:10:30,396 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2117342152] [2021-11-03 05:10:30,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:10:30,396 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:10:30,397 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2586eab-361a-438c-8d1d-21c476cf8276/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:10:30,397 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2586eab-361a-438c-8d1d-21c476cf8276/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:10:30,454 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2586eab-361a-438c-8d1d-21c476cf8276/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2021-11-03 05:10:30,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:10:30,687 INFO L263 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 22 conjunts are in the unsatisfiable core [2021-11-03 05:10:30,704 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:10:30,717 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-03 05:10:30,770 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-03 05:10:30,842 INFO L354 Elim1Store]: treesize reduction 23, result has 28.1 percent of original size [2021-11-03 05:10:30,842 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 20 [2021-11-03 05:10:30,932 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-03 05:10:30,932 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 16 [2021-11-03 05:10:31,161 INFO L354 Elim1Store]: treesize reduction 562, result has 2.9 percent of original size [2021-11-03 05:10:31,161 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 6 case distinctions, treesize of input 69 treesize of output 27 [2021-11-03 05:10:31,274 INFO L354 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2021-11-03 05:10:31,274 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 10 [2021-11-03 05:10:31,383 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:10:31,383 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:10:31,478 INFO L354 Elim1Store]: treesize reduction 5, result has 64.3 percent of original size [2021-11-03 05:10:31,479 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 23 [2021-11-03 05:10:31,608 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:10:31,610 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 115 [2021-11-03 05:10:33,658 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_DerPreprocessor_4 (_ BitVec 32)) (v_DerPreprocessor_3 (_ BitVec 32)) (v_DerPreprocessor_2 (_ BitVec 32)) (ULTIMATE.start_insert_sub_~sub~0.offset (_ BitVec 32)) (v_DerPreprocessor_1 (_ BitVec 32))) (= (select (select (store |c_#memory_$Pointer$.base| c_ULTIMATE.start_insert_sub_~sub~0.base (store (store (store (store (select |c_#memory_$Pointer$.base| c_ULTIMATE.start_insert_sub_~sub~0.base) ULTIMATE.start_insert_sub_~sub~0.offset v_DerPreprocessor_1) (bvadd ULTIMATE.start_insert_sub_~sub~0.offset (_ bv1 32)) v_DerPreprocessor_2) (bvadd (_ bv2 32) ULTIMATE.start_insert_sub_~sub~0.offset) v_DerPreprocessor_3) (bvadd (_ bv3 32) ULTIMATE.start_insert_sub_~sub~0.offset) v_DerPreprocessor_4)) c_ULTIMATE.start_insert_sub_~head.base) (bvadd (_ bv4 32) c_ULTIMATE.start_insert_sub_~head.offset)) c_ULTIMATE.start_insert_sub_~head.base)) is different from false [2021-11-03 05:10:35,750 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ULTIMATE.start_insert_sub_~sub~0.base_24 (_ BitVec 32)) (v_DerPreprocessor_4 (_ BitVec 32)) (v_DerPreprocessor_3 (_ BitVec 32)) (v_DerPreprocessor_2 (_ BitVec 32)) (ULTIMATE.start_insert_sub_~sub~0.offset (_ BitVec 32)) (v_DerPreprocessor_1 (_ BitVec 32))) (or (= (select (select (store |c_#memory_$Pointer$.base| v_ULTIMATE.start_insert_sub_~sub~0.base_24 (store (store (store (store (select |c_#memory_$Pointer$.base| v_ULTIMATE.start_insert_sub_~sub~0.base_24) ULTIMATE.start_insert_sub_~sub~0.offset v_DerPreprocessor_1) (bvadd ULTIMATE.start_insert_sub_~sub~0.offset (_ bv1 32)) v_DerPreprocessor_2) (bvadd (_ bv2 32) ULTIMATE.start_insert_sub_~sub~0.offset) v_DerPreprocessor_3) (bvadd (_ bv3 32) ULTIMATE.start_insert_sub_~sub~0.offset) v_DerPreprocessor_4)) c_ULTIMATE.start_create_sub_list_~sub.base) (bvadd c_ULTIMATE.start_create_sub_list_~sub.offset (_ bv4 32))) c_ULTIMATE.start_create_sub_list_~sub.base) (not (= (_ bv0 1) (bvneg (select |c_#valid| v_ULTIMATE.start_insert_sub_~sub~0.base_24)))))) is different from false [2021-11-03 05:10:37,826 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ULTIMATE.start_insert_sub_~sub~0.base_24 (_ BitVec 32)) (v_DerPreprocessor_4 (_ BitVec 32)) (v_DerPreprocessor_3 (_ BitVec 32)) (v_DerPreprocessor_2 (_ BitVec 32)) (ULTIMATE.start_insert_sub_~sub~0.offset (_ BitVec 32)) (v_DerPreprocessor_1 (_ BitVec 32))) (or (= (select (select (let ((.cse0 (store |c_#memory_$Pointer$.base| c_ULTIMATE.start_create_sub_list_~sub.base (store (select |c_#memory_$Pointer$.base| c_ULTIMATE.start_create_sub_list_~sub.base) c_ULTIMATE.start_create_sub_list_~sub.offset c_ULTIMATE.start_create_sub_list_~sub.base)))) (store .cse0 v_ULTIMATE.start_insert_sub_~sub~0.base_24 (store (store (store (store (select .cse0 v_ULTIMATE.start_insert_sub_~sub~0.base_24) ULTIMATE.start_insert_sub_~sub~0.offset v_DerPreprocessor_1) (bvadd ULTIMATE.start_insert_sub_~sub~0.offset (_ bv1 32)) v_DerPreprocessor_2) (bvadd (_ bv2 32) ULTIMATE.start_insert_sub_~sub~0.offset) v_DerPreprocessor_3) (bvadd (_ bv3 32) ULTIMATE.start_insert_sub_~sub~0.offset) v_DerPreprocessor_4))) c_ULTIMATE.start_create_sub_list_~sub.base) (bvadd c_ULTIMATE.start_create_sub_list_~sub.offset (_ bv4 32))) c_ULTIMATE.start_create_sub_list_~sub.base) (not (= (_ bv0 1) (bvneg (select |c_#valid| v_ULTIMATE.start_insert_sub_~sub~0.base_24)))))) is different from false [2021-11-03 05:10:41,041 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:10:41,041 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2117342152] [2021-11-03 05:10:41,042 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: BigInteger out of long range [2021-11-03 05:10:41,042 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [587451725] [2021-11-03 05:10:41,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:10:41,042 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-03 05:10:41,042 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2586eab-361a-438c-8d1d-21c476cf8276/bin/utaipan-aC7eJsxGYH/cvc4 [2021-11-03 05:10:41,053 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2586eab-361a-438c-8d1d-21c476cf8276/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-03 05:10:41,080 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2586eab-361a-438c-8d1d-21c476cf8276/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt (14)] Waiting until timeout for monitored process [2021-11-03 05:10:41,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:10:41,365 INFO L263 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 24 conjunts are in the unsatisfiable core [2021-11-03 05:10:41,369 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:10:41,385 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-03 05:10:41,498 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-03 05:10:41,581 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:10:41,582 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-11-03 05:10:41,689 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-03 05:10:41,689 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 20 treesize of output 20 [2021-11-03 05:10:41,900 INFO L354 Elim1Store]: treesize reduction 516, result has 2.8 percent of original size [2021-11-03 05:10:41,900 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 6 case distinctions, treesize of input 67 treesize of output 25 [2021-11-03 05:10:42,069 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:10:42,070 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 18 [2021-11-03 05:10:42,094 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:10:42,094 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:10:42,203 INFO L354 Elim1Store]: treesize reduction 5, result has 64.3 percent of original size [2021-11-03 05:10:42,203 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 26 [2021-11-03 05:10:42,232 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:10:42,233 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 115 [2021-11-03 05:10:54,265 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ULTIMATE.start_insert_sub_~sub~0.base_25 (_ BitVec 32)) (v_DerPreprocessor_7 (_ BitVec 32)) (v_DerPreprocessor_6 (_ BitVec 32)) (v_DerPreprocessor_5 (_ BitVec 32)) (ULTIMATE.start_insert_sub_~sub~0.offset (_ BitVec 32)) (v_DerPreprocessor_8 (_ BitVec 32))) (or (= (select (select (store |c_#memory_$Pointer$.base| v_ULTIMATE.start_insert_sub_~sub~0.base_25 (store (store (store (store (select |c_#memory_$Pointer$.base| v_ULTIMATE.start_insert_sub_~sub~0.base_25) ULTIMATE.start_insert_sub_~sub~0.offset v_DerPreprocessor_5) (bvadd ULTIMATE.start_insert_sub_~sub~0.offset (_ bv1 32)) v_DerPreprocessor_6) (bvadd (_ bv2 32) ULTIMATE.start_insert_sub_~sub~0.offset) v_DerPreprocessor_7) (bvadd (_ bv3 32) ULTIMATE.start_insert_sub_~sub~0.offset) v_DerPreprocessor_8)) c_ULTIMATE.start_create_sub_list_~sub.base) (bvadd c_ULTIMATE.start_create_sub_list_~sub.offset (_ bv4 32))) c_ULTIMATE.start_create_sub_list_~sub.base) (not (= (_ bv0 1) (bvneg (bvneg (select |c_#valid| v_ULTIMATE.start_insert_sub_~sub~0.base_25))))))) is different from false [2021-11-03 05:10:56,352 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ULTIMATE.start_insert_sub_~sub~0.base_25 (_ BitVec 32)) (v_DerPreprocessor_7 (_ BitVec 32)) (v_DerPreprocessor_6 (_ BitVec 32)) (v_DerPreprocessor_5 (_ BitVec 32)) (ULTIMATE.start_insert_sub_~sub~0.offset (_ BitVec 32)) (v_DerPreprocessor_8 (_ BitVec 32))) (or (not (= (_ bv0 1) (bvneg (bvneg (select |c_#valid| v_ULTIMATE.start_insert_sub_~sub~0.base_25))))) (= (select (select (let ((.cse0 (store |c_#memory_$Pointer$.base| c_ULTIMATE.start_create_sub_list_~sub.base (store (select |c_#memory_$Pointer$.base| c_ULTIMATE.start_create_sub_list_~sub.base) c_ULTIMATE.start_create_sub_list_~sub.offset c_ULTIMATE.start_create_sub_list_~sub.base)))) (store .cse0 v_ULTIMATE.start_insert_sub_~sub~0.base_25 (store (store (store (store (select .cse0 v_ULTIMATE.start_insert_sub_~sub~0.base_25) ULTIMATE.start_insert_sub_~sub~0.offset v_DerPreprocessor_5) (bvadd ULTIMATE.start_insert_sub_~sub~0.offset (_ bv1 32)) v_DerPreprocessor_6) (bvadd (_ bv2 32) ULTIMATE.start_insert_sub_~sub~0.offset) v_DerPreprocessor_7) (bvadd (_ bv3 32) ULTIMATE.start_insert_sub_~sub~0.offset) v_DerPreprocessor_8))) c_ULTIMATE.start_create_sub_list_~sub.base) (bvadd c_ULTIMATE.start_create_sub_list_~sub.offset (_ bv4 32))) c_ULTIMATE.start_create_sub_list_~sub.base))) is different from false [2021-11-03 05:10:56,632 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:10:56,632 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [587451725] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:10:56,632 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:10:56,633 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10, 8] imperfect sequences [] total 15 [2021-11-03 05:10:56,633 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [396515268] [2021-11-03 05:10:56,633 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2021-11-03 05:10:56,633 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:10:56,634 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-11-03 05:10:56,635 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=393, Unknown=9, NotChecked=220, Total=702 [2021-11-03 05:10:56,635 INFO L87 Difference]: Start difference. First operand 90 states and 94 transitions. Second operand has 16 states, 15 states have (on average 1.8) internal successors, (27), 16 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:10:58,809 WARN L838 $PredicateComparison]: unable to prove that (and (= (_ bv0 1) (bvadd (_ bv1 1) (bvneg (select |c_#valid| c_ULTIMATE.start_insert_top_~top~0.base)))) (= (select (select |c_#memory_$Pointer$.base| c_ULTIMATE.start_create_sub_list_~sub.base) (bvadd c_ULTIMATE.start_create_sub_list_~sub.offset (_ bv4 32))) c_ULTIMATE.start_create_sub_list_~sub.base) (= c_ULTIMATE.start_insert_top_~top~0.offset (_ bv0 32)) (= (_ bv0 1) (bvadd (_ bv1 1) (bvneg (bvneg (select |c_#valid| c_ULTIMATE.start_create_sub_list_~sub.base))))) (= c_ULTIMATE.start_create_sub_list_~sub.offset (_ bv8 32)) (forall ((v_ULTIMATE.start_insert_sub_~sub~0.base_25 (_ BitVec 32)) (v_DerPreprocessor_7 (_ BitVec 32)) (v_DerPreprocessor_6 (_ BitVec 32)) (v_DerPreprocessor_5 (_ BitVec 32)) (ULTIMATE.start_insert_sub_~sub~0.offset (_ BitVec 32)) (v_DerPreprocessor_8 (_ BitVec 32))) (or (not (= (_ bv0 1) (bvneg (bvneg (select |c_#valid| v_ULTIMATE.start_insert_sub_~sub~0.base_25))))) (= (select (select (let ((.cse0 (store |c_#memory_$Pointer$.base| c_ULTIMATE.start_create_sub_list_~sub.base (store (select |c_#memory_$Pointer$.base| c_ULTIMATE.start_create_sub_list_~sub.base) c_ULTIMATE.start_create_sub_list_~sub.offset c_ULTIMATE.start_create_sub_list_~sub.base)))) (store .cse0 v_ULTIMATE.start_insert_sub_~sub~0.base_25 (store (store (store (store (select .cse0 v_ULTIMATE.start_insert_sub_~sub~0.base_25) ULTIMATE.start_insert_sub_~sub~0.offset v_DerPreprocessor_5) (bvadd ULTIMATE.start_insert_sub_~sub~0.offset (_ bv1 32)) v_DerPreprocessor_6) (bvadd (_ bv2 32) ULTIMATE.start_insert_sub_~sub~0.offset) v_DerPreprocessor_7) (bvadd (_ bv3 32) ULTIMATE.start_insert_sub_~sub~0.offset) v_DerPreprocessor_8))) c_ULTIMATE.start_create_sub_list_~sub.base) (bvadd c_ULTIMATE.start_create_sub_list_~sub.offset (_ bv4 32))) c_ULTIMATE.start_create_sub_list_~sub.base)))) is different from false [2021-11-03 05:11:22,379 WARN L838 $PredicateComparison]: unable to prove that (and (= (_ bv0 1) (bvadd (_ bv1 1) (bvneg (select |c_#valid| c_ULTIMATE.start_insert_top_~top~0.base)))) (= (select (select |c_#memory_$Pointer$.base| c_ULTIMATE.start_create_sub_list_~sub.base) (bvadd c_ULTIMATE.start_create_sub_list_~sub.offset (_ bv4 32))) c_ULTIMATE.start_create_sub_list_~sub.base) (= c_ULTIMATE.start_insert_top_~top~0.offset (_ bv0 32)) (= (_ bv0 1) (bvadd (_ bv1 1) (bvneg (bvneg (select |c_#valid| c_ULTIMATE.start_create_sub_list_~sub.base))))) (= c_ULTIMATE.start_create_sub_list_~sub.offset (_ bv8 32)) (= (_ bv0 1) (bvadd (bvneg (select |c_#valid| c_ULTIMATE.start___list_add_~prev.base)) (_ bv1 1))) (forall ((v_ULTIMATE.start_insert_sub_~sub~0.base_25 (_ BitVec 32)) (v_DerPreprocessor_7 (_ BitVec 32)) (v_DerPreprocessor_6 (_ BitVec 32)) (v_DerPreprocessor_5 (_ BitVec 32)) (ULTIMATE.start_insert_sub_~sub~0.offset (_ BitVec 32)) (v_DerPreprocessor_8 (_ BitVec 32))) (or (not (= (_ bv0 1) (bvneg (bvneg (select |c_#valid| v_ULTIMATE.start_insert_sub_~sub~0.base_25))))) (= (select (select (let ((.cse0 (store |c_#memory_$Pointer$.base| c_ULTIMATE.start_create_sub_list_~sub.base (store (select |c_#memory_$Pointer$.base| c_ULTIMATE.start_create_sub_list_~sub.base) c_ULTIMATE.start_create_sub_list_~sub.offset c_ULTIMATE.start_create_sub_list_~sub.base)))) (store .cse0 v_ULTIMATE.start_insert_sub_~sub~0.base_25 (store (store (store (store (select .cse0 v_ULTIMATE.start_insert_sub_~sub~0.base_25) ULTIMATE.start_insert_sub_~sub~0.offset v_DerPreprocessor_5) (bvadd ULTIMATE.start_insert_sub_~sub~0.offset (_ bv1 32)) v_DerPreprocessor_6) (bvadd (_ bv2 32) ULTIMATE.start_insert_sub_~sub~0.offset) v_DerPreprocessor_7) (bvadd (_ bv3 32) ULTIMATE.start_insert_sub_~sub~0.offset) v_DerPreprocessor_8))) c_ULTIMATE.start_create_sub_list_~sub.base) (bvadd c_ULTIMATE.start_create_sub_list_~sub.offset (_ bv4 32))) c_ULTIMATE.start_create_sub_list_~sub.base)))) is different from false [2021-11-03 05:11:22,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:11:22,682 INFO L93 Difference]: Finished difference Result 134 states and 140 transitions. [2021-11-03 05:11:22,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-11-03 05:11:22,683 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 1.8) internal successors, (27), 16 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2021-11-03 05:11:22,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:11:22,684 INFO L225 Difference]: With dead ends: 134 [2021-11-03 05:11:22,684 INFO L226 Difference]: Without dead ends: 134 [2021-11-03 05:11:22,685 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 33 SyntacticMatches, 2 SemanticMatches, 37 ConstructedPredicates, 7 IntricatePredicates, 0 DeprecatedPredicates, 201 ImplicationChecksByTransitivity, 45.3s TimeCoverageRelationStatistics Valid=192, Invalid=817, Unknown=11, NotChecked=462, Total=1482 [2021-11-03 05:11:22,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2021-11-03 05:11:22,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 100. [2021-11-03 05:11:22,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 72 states have (on average 1.4583333333333333) internal successors, (105), 99 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:11:22,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 105 transitions. [2021-11-03 05:11:22,689 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 105 transitions. Word has length 17 [2021-11-03 05:11:22,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:11:22,690 INFO L470 AbstractCegarLoop]: Abstraction has 100 states and 105 transitions. [2021-11-03 05:11:22,690 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 1.8) internal successors, (27), 16 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:11:22,690 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 105 transitions. [2021-11-03 05:11:22,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-11-03 05:11:22,690 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:11:22,691 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:11:22,710 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2586eab-361a-438c-8d1d-21c476cf8276/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2021-11-03 05:11:22,907 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2586eab-361a-438c-8d1d-21c476cf8276/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt (14)] Forceful destruction successful, exit code 0 [2021-11-03 05:11:23,101 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2586eab-361a-438c-8d1d-21c476cf8276/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2586eab-361a-438c-8d1d-21c476cf8276/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt [2021-11-03 05:11:23,101 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr15REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 53 more)] === [2021-11-03 05:11:23,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:11:23,101 INFO L85 PathProgramCache]: Analyzing trace with hash 657868667, now seen corresponding path program 1 times [2021-11-03 05:11:23,102 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:11:23,102 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1539531715] [2021-11-03 05:11:23,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:11:23,102 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:11:23,102 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2586eab-361a-438c-8d1d-21c476cf8276/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:11:23,103 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2586eab-361a-438c-8d1d-21c476cf8276/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:11:23,145 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2586eab-361a-438c-8d1d-21c476cf8276/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2021-11-03 05:11:23,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:11:23,448 INFO L263 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 32 conjunts are in the unsatisfiable core [2021-11-03 05:11:23,450 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:11:23,467 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-03 05:11:23,480 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-03 05:11:23,583 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-03 05:11:23,602 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-03 05:11:23,671 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:11:23,673 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-11-03 05:11:23,700 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:11:23,701 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-11-03 05:11:23,820 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-03 05:11:23,820 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 20 treesize of output 20 [2021-11-03 05:11:23,857 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 14 [2021-11-03 05:11:24,307 INFO L354 Elim1Store]: treesize reduction 516, result has 2.8 percent of original size [2021-11-03 05:11:24,308 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 5 case distinctions, treesize of input 130 treesize of output 88 [2021-11-03 05:11:24,478 INFO L354 Elim1Store]: treesize reduction 516, result has 2.8 percent of original size [2021-11-03 05:11:24,479 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 5 case distinctions, treesize of input 82 treesize of output 40 [2021-11-03 05:11:24,738 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2021-11-03 05:11:24,748 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2021-11-03 05:11:24,949 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:11:24,949 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:11:25,534 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:11:25,536 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 192 [2021-11-03 05:11:25,544 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:11:25,546 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 294 [2021-11-03 05:11:28,203 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_DerPreprocessor_10 (_ BitVec 32)) (ULTIMATE.start_insert_sub_~sub~0.offset (_ BitVec 32)) (v_DerPreprocessor_13 (_ BitVec 32)) (v_DerPreprocessor_14 (_ BitVec 32)) (v_DerPreprocessor_11 (_ BitVec 32)) (v_DerPreprocessor_12 (_ BitVec 32)) (v_DerPreprocessor_9 (_ BitVec 32)) (v_DerPreprocessor_15 (_ BitVec 32)) (v_DerPreprocessor_16 (_ BitVec 32))) (let ((.cse0 (bvadd ULTIMATE.start_insert_sub_~sub~0.offset (_ bv1 32))) (.cse1 (bvadd (_ bv2 32) ULTIMATE.start_insert_sub_~sub~0.offset)) (.cse2 (bvadd (_ bv3 32) ULTIMATE.start_insert_sub_~sub~0.offset)) (.cse3 (bvadd (_ bv4 32) c_ULTIMATE.start_insert_sub_~head.offset))) (bvule (bvadd (_ bv4 32) (select (select (store |c_#memory_$Pointer$.offset| c_ULTIMATE.start_insert_sub_~sub~0.base (store (store (store (store (select |c_#memory_$Pointer$.offset| c_ULTIMATE.start_insert_sub_~sub~0.base) ULTIMATE.start_insert_sub_~sub~0.offset v_DerPreprocessor_13) .cse0 v_DerPreprocessor_14) .cse1 v_DerPreprocessor_15) .cse2 v_DerPreprocessor_16)) c_ULTIMATE.start_insert_sub_~head.base) .cse3)) (select |c_#length| (select (select (store |c_#memory_$Pointer$.base| c_ULTIMATE.start_insert_sub_~sub~0.base (store (store (store (store (select |c_#memory_$Pointer$.base| c_ULTIMATE.start_insert_sub_~sub~0.base) ULTIMATE.start_insert_sub_~sub~0.offset v_DerPreprocessor_9) .cse0 v_DerPreprocessor_10) .cse1 v_DerPreprocessor_11) .cse2 v_DerPreprocessor_12)) c_ULTIMATE.start_insert_sub_~head.base) .cse3))))) (forall ((ULTIMATE.start_insert_sub_~sub~0.offset (_ BitVec 32)) (v_DerPreprocessor_13 (_ BitVec 32)) (v_DerPreprocessor_14 (_ BitVec 32)) (v_DerPreprocessor_15 (_ BitVec 32)) (v_DerPreprocessor_16 (_ BitVec 32))) (let ((.cse4 (select (select (store |c_#memory_$Pointer$.offset| c_ULTIMATE.start_insert_sub_~sub~0.base (store (store (store (store (select |c_#memory_$Pointer$.offset| c_ULTIMATE.start_insert_sub_~sub~0.base) ULTIMATE.start_insert_sub_~sub~0.offset v_DerPreprocessor_13) (bvadd ULTIMATE.start_insert_sub_~sub~0.offset (_ bv1 32)) v_DerPreprocessor_14) (bvadd (_ bv2 32) ULTIMATE.start_insert_sub_~sub~0.offset) v_DerPreprocessor_15) (bvadd (_ bv3 32) ULTIMATE.start_insert_sub_~sub~0.offset) v_DerPreprocessor_16)) c_ULTIMATE.start_insert_sub_~head.base) (bvadd (_ bv4 32) c_ULTIMATE.start_insert_sub_~head.offset)))) (bvule .cse4 (bvadd (_ bv4 32) .cse4))))) is different from false [2021-11-03 05:11:39,806 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ULTIMATE.start_insert_sub_~sub~0.base_26 (_ BitVec 32))) (or (and (forall ((ULTIMATE.start_insert_sub_~sub~0.offset (_ BitVec 32)) (v_DerPreprocessor_13 (_ BitVec 32)) (v_DerPreprocessor_14 (_ BitVec 32)) (v_DerPreprocessor_15 (_ BitVec 32)) (v_DerPreprocessor_16 (_ BitVec 32))) (let ((.cse0 (select (select (let ((.cse1 (store |c_#memory_$Pointer$.offset| c_ULTIMATE.start_create_sub_list_~sub.base (store (select |c_#memory_$Pointer$.offset| c_ULTIMATE.start_create_sub_list_~sub.base) c_ULTIMATE.start_create_sub_list_~sub.offset c_ULTIMATE.start_create_sub_list_~sub.offset)))) (store .cse1 v_ULTIMATE.start_insert_sub_~sub~0.base_26 (store (store (store (store (select .cse1 v_ULTIMATE.start_insert_sub_~sub~0.base_26) ULTIMATE.start_insert_sub_~sub~0.offset v_DerPreprocessor_13) (bvadd ULTIMATE.start_insert_sub_~sub~0.offset (_ bv1 32)) v_DerPreprocessor_14) (bvadd (_ bv2 32) ULTIMATE.start_insert_sub_~sub~0.offset) v_DerPreprocessor_15) (bvadd (_ bv3 32) ULTIMATE.start_insert_sub_~sub~0.offset) v_DerPreprocessor_16))) c_ULTIMATE.start_create_sub_list_~sub.base) (bvadd c_ULTIMATE.start_create_sub_list_~sub.offset (_ bv4 32))))) (bvule .cse0 (bvadd (_ bv4 32) .cse0)))) (forall ((v_DerPreprocessor_10 (_ BitVec 32)) (ULTIMATE.start_insert_sub_~sub~0.offset (_ BitVec 32)) (v_DerPreprocessor_13 (_ BitVec 32)) (v_DerPreprocessor_14 (_ BitVec 32)) (v_DerPreprocessor_11 (_ BitVec 32)) (v_DerPreprocessor_12 (_ BitVec 32)) (v_DerPreprocessor_9 (_ BitVec 32)) (v_DerPreprocessor_15 (_ BitVec 32)) (v_DerPreprocessor_16 (_ BitVec 32))) (let ((.cse3 (bvadd ULTIMATE.start_insert_sub_~sub~0.offset (_ bv1 32))) (.cse4 (bvadd (_ bv2 32) ULTIMATE.start_insert_sub_~sub~0.offset)) (.cse5 (bvadd (_ bv3 32) ULTIMATE.start_insert_sub_~sub~0.offset)) (.cse6 (bvadd c_ULTIMATE.start_create_sub_list_~sub.offset (_ bv4 32)))) (bvule (bvadd (_ bv4 32) (select (select (let ((.cse2 (store |c_#memory_$Pointer$.offset| c_ULTIMATE.start_create_sub_list_~sub.base (store (select |c_#memory_$Pointer$.offset| c_ULTIMATE.start_create_sub_list_~sub.base) c_ULTIMATE.start_create_sub_list_~sub.offset c_ULTIMATE.start_create_sub_list_~sub.offset)))) (store .cse2 v_ULTIMATE.start_insert_sub_~sub~0.base_26 (store (store (store (store (select .cse2 v_ULTIMATE.start_insert_sub_~sub~0.base_26) ULTIMATE.start_insert_sub_~sub~0.offset v_DerPreprocessor_13) .cse3 v_DerPreprocessor_14) .cse4 v_DerPreprocessor_15) .cse5 v_DerPreprocessor_16))) c_ULTIMATE.start_create_sub_list_~sub.base) .cse6)) (select (store |c_#length| v_ULTIMATE.start_insert_sub_~sub~0.base_26 (_ bv12 32)) (select (select (let ((.cse7 (store |c_#memory_$Pointer$.base| c_ULTIMATE.start_create_sub_list_~sub.base (store (select |c_#memory_$Pointer$.base| c_ULTIMATE.start_create_sub_list_~sub.base) c_ULTIMATE.start_create_sub_list_~sub.offset c_ULTIMATE.start_create_sub_list_~sub.base)))) (store .cse7 v_ULTIMATE.start_insert_sub_~sub~0.base_26 (store (store (store (store (select .cse7 v_ULTIMATE.start_insert_sub_~sub~0.base_26) ULTIMATE.start_insert_sub_~sub~0.offset v_DerPreprocessor_9) .cse3 v_DerPreprocessor_10) .cse4 v_DerPreprocessor_11) .cse5 v_DerPreprocessor_12))) c_ULTIMATE.start_create_sub_list_~sub.base) .cse6)))))) (not (= (_ bv0 1) (bvneg (select |c_#valid| v_ULTIMATE.start_insert_sub_~sub~0.base_26)))))) is different from false [2021-11-03 05:13:05,845 WARN L207 SmtUtils]: Spent 1.42 m on a formula simplification that was a NOOP. DAG size: 1805 [2021-11-03 05:13:06,518 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:13:06,519 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1539531715] [2021-11-03 05:13:06,519 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: BigInteger out of long range [2021-11-03 05:13:06,519 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [624856028] [2021-11-03 05:13:06,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:13:06,519 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-03 05:13:06,520 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2586eab-361a-438c-8d1d-21c476cf8276/bin/utaipan-aC7eJsxGYH/cvc4 [2021-11-03 05:13:06,524 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2586eab-361a-438c-8d1d-21c476cf8276/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-03 05:13:06,544 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2586eab-361a-438c-8d1d-21c476cf8276/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt (16)] Waiting until timeout for monitored process [2021-11-03 05:13:07,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:13:07,038 INFO L263 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 32 conjunts are in the unsatisfiable core [2021-11-03 05:13:07,041 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:13:07,058 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-03 05:13:07,067 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-03 05:13:07,131 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-03 05:13:07,139 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-03 05:13:07,175 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:13:07,176 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-11-03 05:13:07,195 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:13:07,196 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-11-03 05:13:07,259 INFO L354 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2021-11-03 05:13:07,260 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 18 [2021-11-03 05:13:07,312 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-03 05:13:07,313 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 21 [2021-11-03 05:13:07,641 INFO L354 Elim1Store]: treesize reduction 516, result has 2.8 percent of original size [2021-11-03 05:13:07,641 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 5 case distinctions, treesize of input 130 treesize of output 88 [2021-11-03 05:13:07,771 INFO L354 Elim1Store]: treesize reduction 516, result has 2.8 percent of original size [2021-11-03 05:13:07,772 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 5 case distinctions, treesize of input 82 treesize of output 40 [2021-11-03 05:13:07,860 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2021-11-03 05:13:07,871 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2021-11-03 05:13:07,960 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:13:07,960 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:13:08,089 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:13:08,092 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 192 [2021-11-03 05:13:08,096 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:13:08,103 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 294 [2021-11-03 05:13:31,748 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ULTIMATE.start_insert_sub_~sub~0.base_27 (_ BitVec 32))) (or (and (forall ((v_DerPreprocessor_19 (_ BitVec 32)) (v_DerPreprocessor_20 (_ BitVec 32)) (v_DerPreprocessor_21 (_ BitVec 32)) (ULTIMATE.start_insert_sub_~sub~0.offset (_ BitVec 32)) (v_DerPreprocessor_24 (_ BitVec 32)) (v_DerPreprocessor_22 (_ BitVec 32)) (v_DerPreprocessor_23 (_ BitVec 32)) (v_DerPreprocessor_17 (_ BitVec 32)) (v_DerPreprocessor_18 (_ BitVec 32))) (let ((.cse1 (bvadd ULTIMATE.start_insert_sub_~sub~0.offset (_ bv1 32))) (.cse2 (bvadd (_ bv2 32) ULTIMATE.start_insert_sub_~sub~0.offset)) (.cse3 (bvadd (_ bv3 32) ULTIMATE.start_insert_sub_~sub~0.offset)) (.cse4 (bvadd c_ULTIMATE.start_create_sub_list_~sub.offset (_ bv4 32)))) (bvule (bvadd (_ bv4 32) (select (select (let ((.cse0 (store |c_#memory_$Pointer$.offset| c_ULTIMATE.start_create_sub_list_~sub.base (store (select |c_#memory_$Pointer$.offset| c_ULTIMATE.start_create_sub_list_~sub.base) c_ULTIMATE.start_create_sub_list_~sub.offset c_ULTIMATE.start_create_sub_list_~sub.offset)))) (store .cse0 v_ULTIMATE.start_insert_sub_~sub~0.base_27 (store (store (store (store (select .cse0 v_ULTIMATE.start_insert_sub_~sub~0.base_27) ULTIMATE.start_insert_sub_~sub~0.offset v_DerPreprocessor_21) .cse1 v_DerPreprocessor_22) .cse2 v_DerPreprocessor_23) .cse3 v_DerPreprocessor_24))) c_ULTIMATE.start_create_sub_list_~sub.base) .cse4)) (select (store |c_#length| v_ULTIMATE.start_insert_sub_~sub~0.base_27 (_ bv12 32)) (select (select (let ((.cse5 (store |c_#memory_$Pointer$.base| c_ULTIMATE.start_create_sub_list_~sub.base (store (select |c_#memory_$Pointer$.base| c_ULTIMATE.start_create_sub_list_~sub.base) c_ULTIMATE.start_create_sub_list_~sub.offset c_ULTIMATE.start_create_sub_list_~sub.base)))) (store .cse5 v_ULTIMATE.start_insert_sub_~sub~0.base_27 (store (store (store (store (select .cse5 v_ULTIMATE.start_insert_sub_~sub~0.base_27) ULTIMATE.start_insert_sub_~sub~0.offset v_DerPreprocessor_17) .cse1 v_DerPreprocessor_18) .cse2 v_DerPreprocessor_19) .cse3 v_DerPreprocessor_20))) c_ULTIMATE.start_create_sub_list_~sub.base) .cse4))))) (forall ((v_DerPreprocessor_21 (_ BitVec 32)) (ULTIMATE.start_insert_sub_~sub~0.offset (_ BitVec 32)) (v_DerPreprocessor_24 (_ BitVec 32)) (v_DerPreprocessor_22 (_ BitVec 32)) (v_DerPreprocessor_23 (_ BitVec 32))) (let ((.cse6 (select (select (let ((.cse7 (store |c_#memory_$Pointer$.offset| c_ULTIMATE.start_create_sub_list_~sub.base (store (select |c_#memory_$Pointer$.offset| c_ULTIMATE.start_create_sub_list_~sub.base) c_ULTIMATE.start_create_sub_list_~sub.offset c_ULTIMATE.start_create_sub_list_~sub.offset)))) (store .cse7 v_ULTIMATE.start_insert_sub_~sub~0.base_27 (store (store (store (store (select .cse7 v_ULTIMATE.start_insert_sub_~sub~0.base_27) ULTIMATE.start_insert_sub_~sub~0.offset v_DerPreprocessor_21) (bvadd ULTIMATE.start_insert_sub_~sub~0.offset (_ bv1 32)) v_DerPreprocessor_22) (bvadd (_ bv2 32) ULTIMATE.start_insert_sub_~sub~0.offset) v_DerPreprocessor_23) (bvadd (_ bv3 32) ULTIMATE.start_insert_sub_~sub~0.offset) v_DerPreprocessor_24))) c_ULTIMATE.start_create_sub_list_~sub.base) (bvadd c_ULTIMATE.start_create_sub_list_~sub.offset (_ bv4 32))))) (bvule .cse6 (bvadd (_ bv4 32) .cse6))))) (not (= (_ bv0 1) (bvneg (bvneg (bvneg (bvneg (select |c_#valid| v_ULTIMATE.start_insert_sub_~sub~0.base_27))))))))) is different from false [2021-11-03 05:13:33,953 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: BigInteger out of long range [2021-11-03 05:13:33,954 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [828543408] [2021-11-03 05:13:33,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:13:33,954 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 05:13:33,954 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2586eab-361a-438c-8d1d-21c476cf8276/bin/utaipan-aC7eJsxGYH/z3 [2021-11-03 05:13:33,964 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2586eab-361a-438c-8d1d-21c476cf8276/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-03 05:13:33,996 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2586eab-361a-438c-8d1d-21c476cf8276/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2021-11-03 05:13:34,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:13:34,279 INFO L263 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 34 conjunts are in the unsatisfiable core [2021-11-03 05:13:34,281 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:13:34,314 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-03 05:13:38,743 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-03 05:13:38,758 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-03 05:13:38,823 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:13:38,824 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-11-03 05:13:38,842 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:13:38,843 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-11-03 05:13:38,910 INFO L354 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2021-11-03 05:13:38,910 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 18 [2021-11-03 05:13:38,945 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-03 05:13:38,945 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 17 [2021-11-03 05:13:39,305 INFO L354 Elim1Store]: treesize reduction 516, result has 2.8 percent of original size [2021-11-03 05:13:39,305 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 5 case distinctions, treesize of input 130 treesize of output 88 [2021-11-03 05:13:39,528 INFO L354 Elim1Store]: treesize reduction 516, result has 2.8 percent of original size [2021-11-03 05:13:39,528 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 5 case distinctions, treesize of input 82 treesize of output 40 [2021-11-03 05:13:39,649 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2021-11-03 05:13:39,661 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2021-11-03 05:13:39,760 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:13:39,761 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:13:39,935 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:13:39,942 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 192 [2021-11-03 05:13:39,947 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:13:39,949 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 294 [2021-11-03 05:14:04,301 WARN L207 SmtUtils]: Spent 6.31 s on a formula simplification that was a NOOP. DAG size: 46 [2021-11-03 05:14:35,302 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-03 05:14:35,378 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-03 05:15:02,640 WARN L207 SmtUtils]: Spent 27.24 s on a formula simplification that was a NOOP. DAG size: 1332 [2021-11-03 05:15:02,866 INFO L354 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2021-11-03 05:15:02,868 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 9330607 treesize of output 9330606 [2021-11-03 05:15:30,012 WARN L207 SmtUtils]: Spent 27.14 s on a formula simplification that was a NOOP. DAG size: 1331 [2021-11-03 05:15:56,218 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: BigInteger out of long range [2021-11-03 05:15:56,219 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:15:56,219 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [] total 0 [2021-11-03 05:15:56,219 ERROR L172 FreeRefinementEngine]: Strategy WALRUS failed to provide any proof altough trace is infeasible [2021-11-03 05:15:56,219 INFO L627 BasicCegarLoop]: Counterexample might be feasible [2021-11-03 05:15:56,226 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15REQUIRES_VIOLATION [2021-11-03 05:15:56,228 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATION [2021-11-03 05:15:56,228 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATION [2021-11-03 05:15:56,228 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATION [2021-11-03 05:15:56,229 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATION [2021-11-03 05:15:56,229 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATION [2021-11-03 05:15:56,229 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5REQUIRES_VIOLATION [2021-11-03 05:15:56,229 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6REQUIRES_VIOLATION [2021-11-03 05:15:56,229 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7REQUIRES_VIOLATION [2021-11-03 05:15:56,229 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8REQUIRES_VIOLATION [2021-11-03 05:15:56,230 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9REQUIRES_VIOLATION [2021-11-03 05:15:56,230 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10REQUIRES_VIOLATION [2021-11-03 05:15:56,230 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11REQUIRES_VIOLATION [2021-11-03 05:15:56,230 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12REQUIRES_VIOLATION [2021-11-03 05:15:56,230 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13REQUIRES_VIOLATION [2021-11-03 05:15:56,230 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14REQUIRES_VIOLATION [2021-11-03 05:15:56,231 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr16REQUIRES_VIOLATION [2021-11-03 05:15:56,231 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr17REQUIRES_VIOLATION [2021-11-03 05:15:56,231 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr18REQUIRES_VIOLATION [2021-11-03 05:15:56,231 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr19REQUIRES_VIOLATION [2021-11-03 05:15:56,231 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr20REQUIRES_VIOLATION [2021-11-03 05:15:56,231 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr21REQUIRES_VIOLATION [2021-11-03 05:15:56,232 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr22REQUIRES_VIOLATION [2021-11-03 05:15:56,232 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr23REQUIRES_VIOLATION [2021-11-03 05:15:56,232 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr24REQUIRES_VIOLATION [2021-11-03 05:15:56,232 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr25REQUIRES_VIOLATION [2021-11-03 05:15:56,232 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr26REQUIRES_VIOLATION [2021-11-03 05:15:56,233 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr27REQUIRES_VIOLATION [2021-11-03 05:15:56,233 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr28REQUIRES_VIOLATION [2021-11-03 05:15:56,233 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr29REQUIRES_VIOLATION [2021-11-03 05:15:56,233 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr30REQUIRES_VIOLATION [2021-11-03 05:15:56,233 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr31REQUIRES_VIOLATION [2021-11-03 05:15:56,233 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr32REQUIRES_VIOLATION [2021-11-03 05:15:56,234 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr33REQUIRES_VIOLATION [2021-11-03 05:15:56,234 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr34REQUIRES_VIOLATION [2021-11-03 05:15:56,234 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr35REQUIRES_VIOLATION [2021-11-03 05:15:56,234 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr36REQUIRES_VIOLATION [2021-11-03 05:15:56,234 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr37REQUIRES_VIOLATION [2021-11-03 05:15:56,235 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr38REQUIRES_VIOLATION [2021-11-03 05:15:56,235 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr39REQUIRES_VIOLATION [2021-11-03 05:15:56,235 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr40REQUIRES_VIOLATION [2021-11-03 05:15:56,235 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr41REQUIRES_VIOLATION [2021-11-03 05:15:56,235 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr42REQUIRES_VIOLATION [2021-11-03 05:15:56,236 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr43REQUIRES_VIOLATION [2021-11-03 05:15:56,236 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr44REQUIRES_VIOLATION [2021-11-03 05:15:56,236 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr45REQUIRES_VIOLATION [2021-11-03 05:15:56,236 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr46REQUIRES_VIOLATION [2021-11-03 05:15:56,237 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr47REQUIRES_VIOLATION [2021-11-03 05:15:56,237 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr48REQUIRES_VIOLATION [2021-11-03 05:15:56,237 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr49REQUIRES_VIOLATION [2021-11-03 05:15:56,237 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr50ASSERT_VIOLATIONMEMORY_FREE [2021-11-03 05:15:56,237 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr51ASSERT_VIOLATIONMEMORY_FREE [2021-11-03 05:15:56,238 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr52ASSERT_VIOLATIONMEMORY_FREE [2021-11-03 05:15:56,238 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr53ASSERT_VIOLATIONMEMORY_FREE [2021-11-03 05:15:56,238 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr54ASSERT_VIOLATIONMEMORY_FREE [2021-11-03 05:15:56,238 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr55ASSERT_VIOLATIONMEMORY_FREE [2021-11-03 05:15:56,238 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr56ASSERT_VIOLATIONMEMORY_LEAK [2021-11-03 05:15:56,256 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2586eab-361a-438c-8d1d-21c476cf8276/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2021-11-03 05:15:56,454 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2586eab-361a-438c-8d1d-21c476cf8276/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt (16)] Forceful destruction successful, exit code 0 [2021-11-03 05:15:56,673 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2586eab-361a-438c-8d1d-21c476cf8276/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2021-11-03 05:15:56,852 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2586eab-361a-438c-8d1d-21c476cf8276/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3,16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2586eab-361a-438c-8d1d-21c476cf8276/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt,17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2586eab-361a-438c-8d1d-21c476cf8276/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 05:15:56,855 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:15:56,858 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-03 05:15:56,877 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.11 05:15:56 BoogieIcfgContainer [2021-11-03 05:15:56,877 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-03 05:15:56,878 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-03 05:15:56,878 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-03 05:15:56,879 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-03 05:15:56,879 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 05:09:54" (3/4) ... [2021-11-03 05:15:56,891 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-03 05:15:56,891 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-03 05:15:56,892 INFO L168 Benchmark]: Toolchain (without parser) took 363952.53 ms. Allocated memory was 77.6 MB in the beginning and 413.1 MB in the end (delta: 335.5 MB). Free memory was 52.8 MB in the beginning and 152.8 MB in the end (delta: -100.0 MB). Peak memory consumption was 236.1 MB. Max. memory is 16.1 GB. [2021-11-03 05:15:56,892 INFO L168 Benchmark]: CDTParser took 0.59 ms. Allocated memory is still 52.4 MB. Free memory was 33.1 MB in the beginning and 33.0 MB in the end (delta: 35.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-03 05:15:56,897 INFO L168 Benchmark]: CACSL2BoogieTranslator took 655.01 ms. Allocated memory is still 77.6 MB. Free memory was 52.5 MB in the beginning and 51.6 MB in the end (delta: 902.6 kB). Peak memory consumption was 16.4 MB. Max. memory is 16.1 GB. [2021-11-03 05:15:56,897 INFO L168 Benchmark]: Boogie Procedure Inliner took 55.96 ms. Allocated memory is still 77.6 MB. Free memory was 51.6 MB in the beginning and 49.2 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-03 05:15:56,898 INFO L168 Benchmark]: Boogie Preprocessor took 73.55 ms. Allocated memory is still 77.6 MB. Free memory was 49.2 MB in the beginning and 47.1 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-03 05:15:56,898 INFO L168 Benchmark]: RCFGBuilder took 891.61 ms. Allocated memory is still 77.6 MB. Free memory was 47.1 MB in the beginning and 50.9 MB in the end (delta: -3.8 MB). Peak memory consumption was 22.2 MB. Max. memory is 16.1 GB. [2021-11-03 05:15:56,899 INFO L168 Benchmark]: TraceAbstraction took 362257.26 ms. Allocated memory was 77.6 MB in the beginning and 413.1 MB in the end (delta: 335.5 MB). Free memory was 50.5 MB in the beginning and 152.8 MB in the end (delta: -102.3 MB). Peak memory consumption was 254.2 MB. Max. memory is 16.1 GB. [2021-11-03 05:15:56,899 INFO L168 Benchmark]: Witness Printer took 12.70 ms. Allocated memory is still 413.1 MB. Free memory is still 152.8 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-03 05:15:56,902 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.59 ms. Allocated memory is still 52.4 MB. Free memory was 33.1 MB in the beginning and 33.0 MB in the end (delta: 35.8 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 655.01 ms. Allocated memory is still 77.6 MB. Free memory was 52.5 MB in the beginning and 51.6 MB in the end (delta: 902.6 kB). Peak memory consumption was 16.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 55.96 ms. Allocated memory is still 77.6 MB. Free memory was 51.6 MB in the beginning and 49.2 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 73.55 ms. Allocated memory is still 77.6 MB. Free memory was 49.2 MB in the beginning and 47.1 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 891.61 ms. Allocated memory is still 77.6 MB. Free memory was 47.1 MB in the beginning and 50.9 MB in the end (delta: -3.8 MB). Peak memory consumption was 22.2 MB. Max. memory is 16.1 GB. * TraceAbstraction took 362257.26 ms. Allocated memory was 77.6 MB in the beginning and 413.1 MB in the end (delta: 335.5 MB). Free memory was 50.5 MB in the beginning and 152.8 MB in the end (delta: -102.3 MB). Peak memory consumption was 254.2 MB. Max. memory is 16.1 GB. * Witness Printer took 12.70 ms. Allocated memory is still 413.1 MB. Free memory is still 152.8 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 534]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: unable to decide satisfiability of path constraint. Possible FailurePath: [L601] struct list_head top = { &(top), &(top) }; [L586] struct top_list *top = malloc(sizeof(*top)); [L587] COND FALSE !(!top) [L578] sub->prev = sub [L579] sub->next = sub [L570] struct sub_list *sub = malloc(sizeof(*sub)); [L571] COND FALSE !(!sub) [L573] sub->number = 0 [L538] head->prev [L531] next->prev = new [L532] new->next = next [L533] new->prev = prev [L534] prev->next = new - UnprovableResult [Line: 578]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 578]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 579]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 579]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 573]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 573]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 538]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 538]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 531]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 531]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 532]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 532]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 533]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 533]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 534]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 578]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 578]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 579]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 579]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 573]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 573]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 538]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 538]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 531]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 531]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 532]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 532]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 533]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 533]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 534]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 534]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 538]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 538]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 531]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 531]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 532]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 532]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 533]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 533]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 534]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 534]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 560]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 560]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 562]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 562]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 551]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 551]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 553]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 553]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 554]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 554]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 554]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 564]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 564]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 564]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 599]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 121 locations, 57 error locations. Started 1 CEGAR loops. OverallTime: 362.1s, OverallIterations: 13, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 54.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 788 SDtfs, 2795 SDslu, 1304 SDs, 0 SdLazy, 2061 SolverSat, 196 SolverUnsat, 3 SolverUnknown, 0 SolverNotchecked, 21.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 324 GetRequests, 200 SyntacticMatches, 7 SemanticMatches, 117 ConstructedPredicates, 7 IntricatePredicates, 2 DeprecatedPredicates, 350 ImplicationChecksByTransitivity, 53.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=121occurred in iteration=0, InterpolantAutomatonStates: 88, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 12 MinimizatonAttempts, 283 StatesRemovedByMinimization, 11 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 132.2s InterpolantComputationTime, 170 NumberOfCodeBlocks, 170 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 280 ConstructedInterpolants, 24 QuantifiedInterpolants, 2330 SizeOfPredicates, 119 NumberOfNonLiveVariables, 1289 ConjunctsInSsa, 156 ConjunctsInUnsatCore, 26 InterpolantComputations, 26 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-11-03 05:15:56,965 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2586eab-361a-438c-8d1d-21c476cf8276/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN