./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../../sv-benchmarks/c/heap-manipulation/bubble_sort_linux-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (memcleanup) Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692a0731-daee-4794-9f41-601c074d16f1/bin/utaipan-SDwSMHVbGG/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692a0731-daee-4794-9f41-601c074d16f1/bin/utaipan-SDwSMHVbGG/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692a0731-daee-4794-9f41-601c074d16f1/bin/utaipan-SDwSMHVbGG/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692a0731-daee-4794-9f41-601c074d16f1/bin/utaipan-SDwSMHVbGG/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/heap-manipulation/bubble_sort_linux-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692a0731-daee-4794-9f41-601c074d16f1/bin/utaipan-SDwSMHVbGG/config/svcomp-MemCleanup-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692a0731-daee-4794-9f41-601c074d16f1/bin/utaipan-SDwSMHVbGG --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-memcleanup) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 3b13662719be51a1d3330a7f40f7706daa8c7b2d4044bc92f854095c09c7c129 .............................................................................................................................................. Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692a0731-daee-4794-9f41-601c074d16f1/bin/utaipan-SDwSMHVbGG/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692a0731-daee-4794-9f41-601c074d16f1/bin/utaipan-SDwSMHVbGG/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692a0731-daee-4794-9f41-601c074d16f1/bin/utaipan-SDwSMHVbGG/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692a0731-daee-4794-9f41-601c074d16f1/bin/utaipan-SDwSMHVbGG/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/heap-manipulation/bubble_sort_linux-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692a0731-daee-4794-9f41-601c074d16f1/bin/utaipan-SDwSMHVbGG/config/svcomp-MemCleanup-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692a0731-daee-4794-9f41-601c074d16f1/bin/utaipan-SDwSMHVbGG --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-memcleanup) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 3b13662719be51a1d3330a7f40f7706daa8c7b2d4044bc92f854095c09c7c129 .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-29 05:35:24,152 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-29 05:35:24,154 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-29 05:35:24,189 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-29 05:35:24,189 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-29 05:35:24,191 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-29 05:35:24,192 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-29 05:35:24,195 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-29 05:35:24,197 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-29 05:35:24,198 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-29 05:35:24,199 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-29 05:35:24,201 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-29 05:35:24,201 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-29 05:35:24,203 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-29 05:35:24,204 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-29 05:35:24,206 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-29 05:35:24,207 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-29 05:35:24,209 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-29 05:35:24,211 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-29 05:35:24,213 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-29 05:35:24,216 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-29 05:35:24,217 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-29 05:35:24,219 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-29 05:35:24,224 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-29 05:35:24,228 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-29 05:35:24,228 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-29 05:35:24,229 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-29 05:35:24,230 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-29 05:35:24,230 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-29 05:35:24,231 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-29 05:35:24,232 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-29 05:35:24,233 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-29 05:35:24,233 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-29 05:35:24,234 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-29 05:35:24,242 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-29 05:35:24,243 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-29 05:35:24,244 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-29 05:35:24,244 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-29 05:35:24,245 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-29 05:35:24,246 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-29 05:35:24,246 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-29 05:35:24,248 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692a0731-daee-4794-9f41-601c074d16f1/bin/utaipan-SDwSMHVbGG/config/svcomp-MemCleanup-32bit-Taipan_Default.epf [2021-10-29 05:35:24,292 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-29 05:35:24,292 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-29 05:35:24,293 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-29 05:35:24,293 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-29 05:35:24,293 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-29 05:35:24,294 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-29 05:35:24,294 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-29 05:35:24,294 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-29 05:35:24,294 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-29 05:35:24,294 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-29 05:35:24,295 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-29 05:35:24,295 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-29 05:35:24,295 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-29 05:35:24,295 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-29 05:35:24,295 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-29 05:35:24,302 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-29 05:35:24,302 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-29 05:35:24,302 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-29 05:35:24,303 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-29 05:35:24,303 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-29 05:35:24,303 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-29 05:35:24,303 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-29 05:35:24,303 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-29 05:35:24,304 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-10-29 05:35:24,304 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-10-29 05:35:24,304 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-29 05:35:24,305 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-29 05:35:24,306 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-29 05:35:24,306 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-29 05:35:24,307 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-29 05:35:24,307 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-29 05:35:24,307 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-29 05:35:24,307 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-29 05:35:24,308 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-29 05:35:24,308 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-29 05:35:24,308 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-29 05:35:24,309 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-29 05:35:24,309 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-29 05:35:24,309 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_692a0731-daee-4794-9f41-601c074d16f1/bin/utaipan-SDwSMHVbGG/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692a0731-daee-4794-9f41-601c074d16f1/bin/utaipan-SDwSMHVbGG Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3b13662719be51a1d3330a7f40f7706daa8c7b2d4044bc92f854095c09c7c129 [2021-10-29 05:35:24,595 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-29 05:35:24,616 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-29 05:35:24,618 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-29 05:35:24,619 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-29 05:35:24,624 INFO L275 PluginConnector]: CDTParser initialized [2021-10-29 05:35:24,625 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692a0731-daee-4794-9f41-601c074d16f1/bin/utaipan-SDwSMHVbGG/../../sv-benchmarks/c/heap-manipulation/bubble_sort_linux-2.i [2021-10-29 05:35:24,695 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692a0731-daee-4794-9f41-601c074d16f1/bin/utaipan-SDwSMHVbGG/data/017ac7faa/33d2b628fe434893beeacf40fc085c2e/FLAG460827e68 [2021-10-29 05:35:25,319 INFO L306 CDTParser]: Found 1 translation units. [2021-10-29 05:35:25,321 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692a0731-daee-4794-9f41-601c074d16f1/sv-benchmarks/c/heap-manipulation/bubble_sort_linux-2.i [2021-10-29 05:35:25,347 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692a0731-daee-4794-9f41-601c074d16f1/bin/utaipan-SDwSMHVbGG/data/017ac7faa/33d2b628fe434893beeacf40fc085c2e/FLAG460827e68 [2021-10-29 05:35:25,552 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692a0731-daee-4794-9f41-601c074d16f1/bin/utaipan-SDwSMHVbGG/data/017ac7faa/33d2b628fe434893beeacf40fc085c2e [2021-10-29 05:35:25,556 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-29 05:35:25,560 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-29 05:35:25,564 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-29 05:35:25,564 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-29 05:35:25,568 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-29 05:35:25,568 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 05:35:25" (1/1) ... [2021-10-29 05:35:25,571 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@30766ff3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:35:25, skipping insertion in model container [2021-10-29 05:35:25,572 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 05:35:25" (1/1) ... [2021-10-29 05:35:25,579 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-29 05:35:25,624 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-29 05:35:26,069 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692a0731-daee-4794-9f41-601c074d16f1/sv-benchmarks/c/heap-manipulation/bubble_sort_linux-2.i[33822,33835] [2021-10-29 05:35:26,095 WARN L549 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-10-29 05:35:26,096 WARN L549 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-10-29 05:35:26,097 WARN L549 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-10-29 05:35:26,122 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 05:35:26,132 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2021-10-29 05:35:26,132 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@1cc9f96e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:35:26, skipping insertion in model container [2021-10-29 05:35:26,133 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-29 05:35:26,133 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-10-29 05:35:26,135 INFO L168 Benchmark]: Toolchain (without parser) took 574.26 ms. Allocated memory was 86.0 MB in the beginning and 117.4 MB in the end (delta: 31.5 MB). Free memory was 49.9 MB in the beginning and 89.8 MB in the end (delta: -39.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-29 05:35:26,136 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 86.0 MB. Free memory was 58.3 MB in the beginning and 58.3 MB in the end (delta: 30.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 05:35:26,137 INFO L168 Benchmark]: CACSL2BoogieTranslator took 568.88 ms. Allocated memory was 86.0 MB in the beginning and 117.4 MB in the end (delta: 31.5 MB). Free memory was 49.6 MB in the beginning and 89.8 MB in the end (delta: -40.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-29 05:35:26,140 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 86.0 MB. Free memory was 58.3 MB in the beginning and 58.3 MB in the end (delta: 30.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 568.88 ms. Allocated memory was 86.0 MB in the beginning and 117.4 MB in the end (delta: 31.5 MB). Free memory was 49.6 MB in the beginning and 89.8 MB in the end (delta: -40.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 860]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.1-dev-b2eff8b [2021-10-29 05:35:28,469 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-29 05:35:28,471 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-29 05:35:28,506 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-29 05:35:28,506 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-29 05:35:28,511 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-29 05:35:28,514 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-29 05:35:28,522 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-29 05:35:28,526 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-29 05:35:28,534 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-29 05:35:28,535 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-29 05:35:28,537 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-29 05:35:28,538 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-29 05:35:28,541 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-29 05:35:28,543 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-29 05:35:28,545 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-29 05:35:28,547 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-29 05:35:28,549 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-29 05:35:28,553 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-29 05:35:28,561 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-29 05:35:28,563 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-29 05:35:28,565 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-29 05:35:28,568 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-29 05:35:28,570 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-29 05:35:28,579 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-29 05:35:28,580 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-29 05:35:28,580 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-29 05:35:28,582 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-29 05:35:28,583 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-29 05:35:28,584 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-29 05:35:28,586 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-29 05:35:28,587 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-29 05:35:28,589 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-29 05:35:28,590 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-29 05:35:28,592 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-29 05:35:28,592 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-29 05:35:28,593 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-29 05:35:28,593 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-29 05:35:28,600 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-29 05:35:28,603 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-29 05:35:28,604 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-29 05:35:28,609 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692a0731-daee-4794-9f41-601c074d16f1/bin/utaipan-SDwSMHVbGG/config/svcomp-MemCleanup-32bit-Taipan_Bitvector.epf [2021-10-29 05:35:28,661 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-29 05:35:28,662 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-29 05:35:28,663 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-29 05:35:28,664 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-29 05:35:28,664 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-29 05:35:28,664 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-29 05:35:28,664 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-29 05:35:28,665 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-29 05:35:28,665 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-29 05:35:28,666 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-29 05:35:28,668 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-29 05:35:28,668 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-29 05:35:28,668 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-29 05:35:28,669 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-29 05:35:28,669 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-29 05:35:28,669 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-29 05:35:28,669 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-29 05:35:28,669 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-10-29 05:35:28,670 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-10-29 05:35:28,670 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-29 05:35:28,670 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-29 05:35:28,670 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-29 05:35:28,671 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-29 05:35:28,671 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-29 05:35:28,671 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-29 05:35:28,671 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-29 05:35:28,672 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-29 05:35:28,672 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-29 05:35:28,672 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-29 05:35:28,672 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-29 05:35:28,673 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-29 05:35:28,673 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-10-29 05:35:28,674 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-29 05:35:28,674 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-29 05:35:28,674 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-29 05:35:28,674 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_692a0731-daee-4794-9f41-601c074d16f1/bin/utaipan-SDwSMHVbGG/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692a0731-daee-4794-9f41-601c074d16f1/bin/utaipan-SDwSMHVbGG Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3b13662719be51a1d3330a7f40f7706daa8c7b2d4044bc92f854095c09c7c129 [2021-10-29 05:35:29,117 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-29 05:35:29,149 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-29 05:35:29,153 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-29 05:35:29,154 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-29 05:35:29,155 INFO L275 PluginConnector]: CDTParser initialized [2021-10-29 05:35:29,156 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692a0731-daee-4794-9f41-601c074d16f1/bin/utaipan-SDwSMHVbGG/../../sv-benchmarks/c/heap-manipulation/bubble_sort_linux-2.i [2021-10-29 05:35:29,242 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692a0731-daee-4794-9f41-601c074d16f1/bin/utaipan-SDwSMHVbGG/data/29896dee0/48709ece3bff415ba7838db0fdd8400e/FLAGba0fc0a55 [2021-10-29 05:35:29,956 INFO L306 CDTParser]: Found 1 translation units. [2021-10-29 05:35:29,956 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692a0731-daee-4794-9f41-601c074d16f1/sv-benchmarks/c/heap-manipulation/bubble_sort_linux-2.i [2021-10-29 05:35:29,980 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692a0731-daee-4794-9f41-601c074d16f1/bin/utaipan-SDwSMHVbGG/data/29896dee0/48709ece3bff415ba7838db0fdd8400e/FLAGba0fc0a55 [2021-10-29 05:35:30,178 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692a0731-daee-4794-9f41-601c074d16f1/bin/utaipan-SDwSMHVbGG/data/29896dee0/48709ece3bff415ba7838db0fdd8400e [2021-10-29 05:35:30,180 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-29 05:35:30,182 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-29 05:35:30,184 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-29 05:35:30,184 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-29 05:35:30,200 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-29 05:35:30,201 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 05:35:30" (1/1) ... [2021-10-29 05:35:30,202 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3ea6e15 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:35:30, skipping insertion in model container [2021-10-29 05:35:30,202 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 05:35:30" (1/1) ... [2021-10-29 05:35:30,210 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-29 05:35:30,278 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-29 05:35:30,741 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692a0731-daee-4794-9f41-601c074d16f1/sv-benchmarks/c/heap-manipulation/bubble_sort_linux-2.i[33822,33835] [2021-10-29 05:35:30,788 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 05:35:30,802 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-10-29 05:35:30,814 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-29 05:35:30,846 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692a0731-daee-4794-9f41-601c074d16f1/sv-benchmarks/c/heap-manipulation/bubble_sort_linux-2.i[33822,33835] [2021-10-29 05:35:30,870 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 05:35:30,877 INFO L203 MainTranslator]: Completed pre-run [2021-10-29 05:35:30,925 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692a0731-daee-4794-9f41-601c074d16f1/sv-benchmarks/c/heap-manipulation/bubble_sort_linux-2.i[33822,33835] [2021-10-29 05:35:30,971 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 05:35:31,073 INFO L208 MainTranslator]: Completed translation [2021-10-29 05:35:31,073 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:35:31 WrapperNode [2021-10-29 05:35:31,073 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-29 05:35:31,075 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-29 05:35:31,075 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-29 05:35:31,075 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-29 05:35:31,082 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:35:31" (1/1) ... [2021-10-29 05:35:31,124 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:35:31" (1/1) ... [2021-10-29 05:35:31,199 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-29 05:35:31,207 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-29 05:35:31,208 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-29 05:35:31,209 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-29 05:35:31,217 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:35:31" (1/1) ... [2021-10-29 05:35:31,218 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:35:31" (1/1) ... [2021-10-29 05:35:31,235 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:35:31" (1/1) ... [2021-10-29 05:35:31,238 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:35:31" (1/1) ... [2021-10-29 05:35:31,273 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:35:31" (1/1) ... [2021-10-29 05:35:31,298 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:35:31" (1/1) ... [2021-10-29 05:35:31,311 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:35:31" (1/1) ... [2021-10-29 05:35:31,322 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-29 05:35:31,330 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-29 05:35:31,330 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-29 05:35:31,330 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-29 05:35:31,331 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:35:31" (1/1) ... [2021-10-29 05:35:31,342 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-29 05:35:31,355 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692a0731-daee-4794-9f41-601c074d16f1/bin/utaipan-SDwSMHVbGG/z3 [2021-10-29 05:35:31,369 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692a0731-daee-4794-9f41-601c074d16f1/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-29 05:35:31,399 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692a0731-daee-4794-9f41-601c074d16f1/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-29 05:35:31,420 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-10-29 05:35:31,420 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-29 05:35:31,422 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-10-29 05:35:31,422 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-29 05:35:31,422 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-10-29 05:35:31,422 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-10-29 05:35:31,422 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-29 05:35:31,423 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-29 05:35:31,423 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-10-29 05:35:31,423 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-29 05:35:31,423 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-29 05:35:32,761 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-29 05:35:32,761 INFO L299 CfgBuilder]: Removed 178 assume(true) statements. [2021-10-29 05:35:32,763 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 05:35:32 BoogieIcfgContainer [2021-10-29 05:35:32,763 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-29 05:35:32,765 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-29 05:35:32,772 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-29 05:35:32,775 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-29 05:35:32,775 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.10 05:35:30" (1/3) ... [2021-10-29 05:35:32,776 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ca9b8ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 05:35:32, skipping insertion in model container [2021-10-29 05:35:32,776 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:35:31" (2/3) ... [2021-10-29 05:35:32,777 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ca9b8ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 05:35:32, skipping insertion in model container [2021-10-29 05:35:32,777 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 05:35:32" (3/3) ... [2021-10-29 05:35:32,779 INFO L111 eAbstractionObserver]: Analyzing ICFG bubble_sort_linux-2.i [2021-10-29 05:35:32,785 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-29 05:35:32,785 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 146 error locations. [2021-10-29 05:35:32,834 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-29 05:35:32,841 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-29 05:35:32,841 INFO L340 AbstractCegarLoop]: Starting to check reachability of 146 error locations. [2021-10-29 05:35:32,865 INFO L276 IsEmpty]: Start isEmpty. Operand has 353 states, 206 states have (on average 2.2815533980582523) internal successors, (470), 352 states have internal predecessors, (470), 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) [2021-10-29 05:35:32,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-10-29 05:35:32,871 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:35:32,872 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-10-29 05:35:32,872 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 142 more)] === [2021-10-29 05:35:32,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:35:32,878 INFO L85 PathProgramCache]: Analyzing trace with hash 28694792, now seen corresponding path program 1 times [2021-10-29 05:35:32,891 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 05:35:32,892 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [167096694] [2021-10-29 05:35:32,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:35:32,893 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 05:35:32,893 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692a0731-daee-4794-9f41-601c074d16f1/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 05:35:32,898 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692a0731-daee-4794-9f41-601c074d16f1/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 05:35:32,914 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692a0731-daee-4794-9f41-601c074d16f1/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-29 05:35:32,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:35:32,997 INFO L263 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 1 conjunts are in the unsatisfiable core [2021-10-29 05:35:33,001 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 05:35:33,043 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:35:33,043 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 05:35:33,060 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:35:33,061 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 05:35:33,062 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [167096694] [2021-10-29 05:35:33,063 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [167096694] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 05:35:33,063 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:35:33,064 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-10-29 05:35:33,066 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [450349778] [2021-10-29 05:35:33,072 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-29 05:35:33,072 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 05:35:33,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-29 05:35:33,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-29 05:35:33,096 INFO L87 Difference]: Start difference. First operand has 353 states, 206 states have (on average 2.2815533980582523) internal successors, (470), 352 states have internal predecessors, (470), 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) [2021-10-29 05:35:33,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:35:33,154 INFO L93 Difference]: Finished difference Result 345 states and 351 transitions. [2021-10-29 05:35:33,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-29 05:35:33,155 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 [2021-10-29 05:35:33,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:35:33,178 INFO L225 Difference]: With dead ends: 345 [2021-10-29 05:35:33,178 INFO L226 Difference]: Without dead ends: 343 [2021-10-29 05:35:33,179 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 [2021-10-29 05:35:33,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 343 states. [2021-10-29 05:35:33,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 343 to 343. [2021-10-29 05:35:33,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 343 states, 201 states have (on average 1.736318407960199) internal successors, (349), 342 states have internal predecessors, (349), 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) [2021-10-29 05:35:33,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 343 states to 343 states and 349 transitions. [2021-10-29 05:35:33,250 INFO L78 Accepts]: Start accepts. Automaton has 343 states and 349 transitions. Word has length 5 [2021-10-29 05:35:33,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:35:33,251 INFO L470 AbstractCegarLoop]: Abstraction has 343 states and 349 transitions. [2021-10-29 05:35:33,251 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) [2021-10-29 05:35:33,251 INFO L276 IsEmpty]: Start isEmpty. Operand 343 states and 349 transitions. [2021-10-29 05:35:33,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-10-29 05:35:33,252 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:35:33,252 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-10-29 05:35:33,268 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692a0731-daee-4794-9f41-601c074d16f1/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-29 05:35:33,464 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692a0731-daee-4794-9f41-601c074d16f1/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 05:35:33,464 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 142 more)] === [2021-10-29 05:35:33,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:35:33,465 INFO L85 PathProgramCache]: Analyzing trace with hash 28694854, now seen corresponding path program 1 times [2021-10-29 05:35:33,466 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 05:35:33,466 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1623965156] [2021-10-29 05:35:33,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:35:33,466 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 05:35:33,467 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692a0731-daee-4794-9f41-601c074d16f1/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 05:35:33,468 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692a0731-daee-4794-9f41-601c074d16f1/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 05:35:33,476 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692a0731-daee-4794-9f41-601c074d16f1/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-29 05:35:33,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:35:33,550 INFO L263 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-29 05:35:33,551 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 05:35:33,595 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-10-29 05:35:33,608 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:35:33,609 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 05:35:33,630 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:35:33,630 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 05:35:33,630 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1623965156] [2021-10-29 05:35:33,631 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1623965156] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 05:35:33,631 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:35:33,631 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-10-29 05:35:33,631 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1078254151] [2021-10-29 05:35:33,633 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-29 05:35:33,633 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 05:35:33,634 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-29 05:35:33,634 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-29 05:35:33,634 INFO L87 Difference]: Start difference. First operand 343 states and 349 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:35:34,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:35:34,032 INFO L93 Difference]: Finished difference Result 362 states and 368 transitions. [2021-10-29 05:35:34,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-29 05:35:34,033 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2021-10-29 05:35:34,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:35:34,036 INFO L225 Difference]: With dead ends: 362 [2021-10-29 05:35:34,036 INFO L226 Difference]: Without dead ends: 362 [2021-10-29 05:35:34,036 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-29 05:35:34,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 362 states. [2021-10-29 05:35:34,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 362 to 340. [2021-10-29 05:35:34,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 340 states, 201 states have (on average 1.7213930348258706) internal successors, (346), 339 states have internal predecessors, (346), 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) [2021-10-29 05:35:34,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 340 states to 340 states and 346 transitions. [2021-10-29 05:35:34,063 INFO L78 Accepts]: Start accepts. Automaton has 340 states and 346 transitions. Word has length 5 [2021-10-29 05:35:34,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:35:34,063 INFO L470 AbstractCegarLoop]: Abstraction has 340 states and 346 transitions. [2021-10-29 05:35:34,063 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:35:34,064 INFO L276 IsEmpty]: Start isEmpty. Operand 340 states and 346 transitions. [2021-10-29 05:35:34,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-10-29 05:35:34,064 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:35:34,064 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-10-29 05:35:34,077 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692a0731-daee-4794-9f41-601c074d16f1/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-10-29 05:35:34,265 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692a0731-daee-4794-9f41-601c074d16f1/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 05:35:34,265 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 142 more)] === [2021-10-29 05:35:34,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:35:34,266 INFO L85 PathProgramCache]: Analyzing trace with hash 28694855, now seen corresponding path program 1 times [2021-10-29 05:35:34,267 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 05:35:34,267 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [655140315] [2021-10-29 05:35:34,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:35:34,267 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 05:35:34,268 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692a0731-daee-4794-9f41-601c074d16f1/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 05:35:34,277 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692a0731-daee-4794-9f41-601c074d16f1/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 05:35:34,284 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692a0731-daee-4794-9f41-601c074d16f1/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-29 05:35:34,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:35:34,406 INFO L263 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-29 05:35:34,407 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 05:35:34,425 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-10-29 05:35:34,464 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:35:34,465 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 05:35:34,585 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:35:34,585 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 05:35:34,585 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [655140315] [2021-10-29 05:35:34,586 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [655140315] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 05:35:34,586 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:35:34,586 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2021-10-29 05:35:34,586 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1334319580] [2021-10-29 05:35:34,587 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-29 05:35:34,587 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 05:35:34,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-29 05:35:34,588 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-29 05:35:34,588 INFO L87 Difference]: Start difference. First operand 340 states and 346 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:35:35,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:35:35,132 INFO L93 Difference]: Finished difference Result 338 states and 344 transitions. [2021-10-29 05:35:35,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-29 05:35:35,133 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2021-10-29 05:35:35,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:35:35,135 INFO L225 Difference]: With dead ends: 338 [2021-10-29 05:35:35,135 INFO L226 Difference]: Without dead ends: 338 [2021-10-29 05:35:35,136 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-29 05:35:35,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 338 states. [2021-10-29 05:35:35,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 338 to 337. [2021-10-29 05:35:35,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 337 states, 201 states have (on average 1.7064676616915422) internal successors, (343), 336 states have internal predecessors, (343), 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) [2021-10-29 05:35:35,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 337 states to 337 states and 343 transitions. [2021-10-29 05:35:35,168 INFO L78 Accepts]: Start accepts. Automaton has 337 states and 343 transitions. Word has length 5 [2021-10-29 05:35:35,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:35:35,169 INFO L470 AbstractCegarLoop]: Abstraction has 337 states and 343 transitions. [2021-10-29 05:35:35,169 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:35:35,169 INFO L276 IsEmpty]: Start isEmpty. Operand 337 states and 343 transitions. [2021-10-29 05:35:35,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-29 05:35:35,169 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:35:35,170 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:35:35,185 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692a0731-daee-4794-9f41-601c074d16f1/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-10-29 05:35:35,381 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692a0731-daee-4794-9f41-601c074d16f1/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 05:35:35,381 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 142 more)] === [2021-10-29 05:35:35,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:35:35,382 INFO L85 PathProgramCache]: Analyzing trace with hash 1805950471, now seen corresponding path program 1 times [2021-10-29 05:35:35,383 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 05:35:35,383 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1012688996] [2021-10-29 05:35:35,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:35:35,383 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 05:35:35,383 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692a0731-daee-4794-9f41-601c074d16f1/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 05:35:35,388 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692a0731-daee-4794-9f41-601c074d16f1/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 05:35:35,392 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692a0731-daee-4794-9f41-601c074d16f1/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-10-29 05:35:35,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:35:35,529 INFO L263 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-29 05:35:35,530 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 05:35:35,605 INFO L354 Elim1Store]: treesize reduction 77, result has 29.4 percent of original size [2021-10-29 05:35:35,605 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 15 treesize of output 37 [2021-10-29 05:35:35,911 INFO L354 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2021-10-29 05:35:35,911 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 21 treesize of output 28 [2021-10-29 05:35:36,137 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:35:36,138 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 05:35:40,259 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:35:40,260 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 05:35:40,260 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1012688996] [2021-10-29 05:35:40,260 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1012688996] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 05:35:40,260 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:35:40,261 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2021-10-29 05:35:40,261 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1734543269] [2021-10-29 05:35:40,261 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-29 05:35:40,261 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 05:35:40,262 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-29 05:35:40,262 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=25, Unknown=2, NotChecked=0, Total=42 [2021-10-29 05:35:40,263 INFO L87 Difference]: Start difference. First operand 337 states and 343 transitions. Second operand has 7 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 6 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) [2021-10-29 05:35:41,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:35:41,009 INFO L93 Difference]: Finished difference Result 357 states and 363 transitions. [2021-10-29 05:35:41,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-29 05:35:41,010 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 6 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 7 [2021-10-29 05:35:41,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:35:41,012 INFO L225 Difference]: With dead ends: 357 [2021-10-29 05:35:41,012 INFO L226 Difference]: Without dead ends: 357 [2021-10-29 05:35:41,012 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=22, Invalid=32, Unknown=2, NotChecked=0, Total=56 [2021-10-29 05:35:41,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 357 states. [2021-10-29 05:35:41,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 357 to 335. [2021-10-29 05:35:41,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 335 states, 202 states have (on average 1.693069306930693) internal successors, (342), 334 states have internal predecessors, (342), 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) [2021-10-29 05:35:41,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 335 states to 335 states and 342 transitions. [2021-10-29 05:35:41,026 INFO L78 Accepts]: Start accepts. Automaton has 335 states and 342 transitions. Word has length 7 [2021-10-29 05:35:41,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:35:41,026 INFO L470 AbstractCegarLoop]: Abstraction has 335 states and 342 transitions. [2021-10-29 05:35:41,026 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 6 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) [2021-10-29 05:35:41,026 INFO L276 IsEmpty]: Start isEmpty. Operand 335 states and 342 transitions. [2021-10-29 05:35:41,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-29 05:35:41,027 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:35:41,027 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:35:41,043 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692a0731-daee-4794-9f41-601c074d16f1/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-10-29 05:35:41,239 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692a0731-daee-4794-9f41-601c074d16f1/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 05:35:41,240 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 142 more)] === [2021-10-29 05:35:41,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:35:41,240 INFO L85 PathProgramCache]: Analyzing trace with hash 1805950472, now seen corresponding path program 1 times [2021-10-29 05:35:41,241 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 05:35:41,241 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [803019212] [2021-10-29 05:35:41,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:35:41,241 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 05:35:41,241 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692a0731-daee-4794-9f41-601c074d16f1/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 05:35:41,242 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692a0731-daee-4794-9f41-601c074d16f1/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 05:35:41,247 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692a0731-daee-4794-9f41-601c074d16f1/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-10-29 05:35:41,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:35:41,356 INFO L263 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 10 conjunts are in the unsatisfiable core [2021-10-29 05:35:41,357 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 05:35:41,415 INFO L354 Elim1Store]: treesize reduction 33, result has 40.0 percent of original size [2021-10-29 05:35:41,415 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 28 treesize of output 42 [2021-10-29 05:35:41,495 INFO L354 Elim1Store]: treesize reduction 77, result has 29.4 percent of original size [2021-10-29 05:35:41,495 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 42 treesize of output 63 [2021-10-29 05:35:41,788 INFO L354 Elim1Store]: treesize reduction 32, result has 31.9 percent of original size [2021-10-29 05:35:41,793 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 46 treesize of output 53 [2021-10-29 05:35:41,833 INFO L354 Elim1Store]: treesize reduction 2, result has 92.0 percent of original size [2021-10-29 05:35:41,833 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 50 treesize of output 66 [2021-10-29 05:35:42,577 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:35:42,577 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 05:35:45,309 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:35:45,310 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 05:35:45,310 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [803019212] [2021-10-29 05:35:45,310 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [803019212] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 05:35:45,310 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:35:45,310 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 6 [2021-10-29 05:35:45,310 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1136590572] [2021-10-29 05:35:45,311 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-29 05:35:45,311 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 05:35:45,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-29 05:35:45,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=37, Unknown=1, NotChecked=0, Total=56 [2021-10-29 05:35:45,312 INFO L87 Difference]: Start difference. First operand 335 states and 342 transitions. Second operand has 8 states, 7 states have (on average 2.0) internal successors, (14), 7 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) [2021-10-29 05:35:47,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:35:47,036 INFO L93 Difference]: Finished difference Result 539 states and 549 transitions. [2021-10-29 05:35:47,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-29 05:35:47,037 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 2.0) internal successors, (14), 7 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 7 [2021-10-29 05:35:47,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:35:47,040 INFO L225 Difference]: With dead ends: 539 [2021-10-29 05:35:47,040 INFO L226 Difference]: Without dead ends: 539 [2021-10-29 05:35:47,041 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=59, Invalid=96, Unknown=1, NotChecked=0, Total=156 [2021-10-29 05:35:47,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 539 states. [2021-10-29 05:35:47,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 539 to 331. [2021-10-29 05:35:47,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 331 states, 202 states have (on average 1.6683168316831682) internal successors, (337), 330 states have internal predecessors, (337), 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) [2021-10-29 05:35:47,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 331 states to 331 states and 337 transitions. [2021-10-29 05:35:47,051 INFO L78 Accepts]: Start accepts. Automaton has 331 states and 337 transitions. Word has length 7 [2021-10-29 05:35:47,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:35:47,051 INFO L470 AbstractCegarLoop]: Abstraction has 331 states and 337 transitions. [2021-10-29 05:35:47,051 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 2.0) internal successors, (14), 7 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) [2021-10-29 05:35:47,051 INFO L276 IsEmpty]: Start isEmpty. Operand 331 states and 337 transitions. [2021-10-29 05:35:47,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-29 05:35:47,052 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:35:47,052 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:35:47,064 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692a0731-daee-4794-9f41-601c074d16f1/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (6)] Ended with exit code 0 [2021-10-29 05:35:47,259 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692a0731-daee-4794-9f41-601c074d16f1/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 05:35:47,260 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 142 more)] === [2021-10-29 05:35:47,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:35:47,260 INFO L85 PathProgramCache]: Analyzing trace with hash 351614728, now seen corresponding path program 1 times [2021-10-29 05:35:47,261 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 05:35:47,261 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1597568538] [2021-10-29 05:35:47,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:35:47,261 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 05:35:47,261 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692a0731-daee-4794-9f41-601c074d16f1/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 05:35:47,262 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692a0731-daee-4794-9f41-601c074d16f1/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 05:35:47,264 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692a0731-daee-4794-9f41-601c074d16f1/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-10-29 05:35:47,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:35:47,389 INFO L263 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 13 conjunts are in the unsatisfiable core [2021-10-29 05:35:47,390 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 05:35:47,506 INFO L354 Elim1Store]: treesize reduction 77, result has 29.4 percent of original size [2021-10-29 05:35:47,506 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 15 treesize of output 37 [2021-10-29 05:35:47,772 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-10-29 05:35:47,772 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 [2021-10-29 05:35:47,886 INFO L354 Elim1Store]: treesize reduction 336, result has 2.0 percent of original size [2021-10-29 05:35:47,887 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 4 case distinctions, treesize of input 60 treesize of output 15 [2021-10-29 05:35:47,936 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 15 [2021-10-29 05:35:47,983 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:35:47,983 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 05:35:48,031 INFO L354 Elim1Store]: treesize reduction 5, result has 58.3 percent of original size [2021-10-29 05:35:48,031 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 22 treesize of output 21 [2021-10-29 05:35:48,059 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:35:48,061 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 113 [2021-10-29 05:35:56,592 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:35:56,593 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 05:35:56,593 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1597568538] [2021-10-29 05:35:56,593 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1597568538] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 05:35:56,593 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:35:56,593 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 8 [2021-10-29 05:35:56,594 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1587047370] [2021-10-29 05:35:56,594 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-29 05:35:56,594 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 05:35:56,595 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-29 05:35:56,595 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=64, Unknown=4, NotChecked=0, Total=90 [2021-10-29 05:35:56,596 INFO L87 Difference]: Start difference. First operand 331 states and 337 transitions. Second operand has 10 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 9 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) [2021-10-29 05:36:01,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:36:01,088 INFO L93 Difference]: Finished difference Result 365 states and 371 transitions. [2021-10-29 05:36:01,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-29 05:36:01,088 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 9 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 9 [2021-10-29 05:36:01,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:36:01,091 INFO L225 Difference]: With dead ends: 365 [2021-10-29 05:36:01,091 INFO L226 Difference]: Without dead ends: 365 [2021-10-29 05:36:01,091 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 10.6s TimeCoverageRelationStatistics Valid=67, Invalid=138, Unknown=5, NotChecked=0, Total=210 [2021-10-29 05:36:01,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 365 states. [2021-10-29 05:36:01,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 365 to 338. [2021-10-29 05:36:01,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 338 states, 209 states have (on average 1.6507177033492824) internal successors, (345), 337 states have internal predecessors, (345), 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) [2021-10-29 05:36:01,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 338 states to 338 states and 345 transitions. [2021-10-29 05:36:01,100 INFO L78 Accepts]: Start accepts. Automaton has 338 states and 345 transitions. Word has length 9 [2021-10-29 05:36:01,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:36:01,101 INFO L470 AbstractCegarLoop]: Abstraction has 338 states and 345 transitions. [2021-10-29 05:36:01,101 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 9 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) [2021-10-29 05:36:01,101 INFO L276 IsEmpty]: Start isEmpty. Operand 338 states and 345 transitions. [2021-10-29 05:36:01,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-29 05:36:01,102 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:36:01,102 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:36:01,117 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692a0731-daee-4794-9f41-601c074d16f1/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-10-29 05:36:01,313 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692a0731-daee-4794-9f41-601c074d16f1/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 05:36:01,314 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 142 more)] === [2021-10-29 05:36:01,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:36:01,314 INFO L85 PathProgramCache]: Analyzing trace with hash 351614729, now seen corresponding path program 1 times [2021-10-29 05:36:01,314 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 05:36:01,314 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [202535806] [2021-10-29 05:36:01,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:36:01,315 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 05:36:01,315 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692a0731-daee-4794-9f41-601c074d16f1/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 05:36:01,315 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692a0731-daee-4794-9f41-601c074d16f1/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 05:36:01,316 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692a0731-daee-4794-9f41-601c074d16f1/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-10-29 05:36:01,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:36:01,447 INFO L263 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 20 conjunts are in the unsatisfiable core [2021-10-29 05:36:01,448 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 05:36:01,525 INFO L354 Elim1Store]: treesize reduction 33, result has 40.0 percent of original size [2021-10-29 05:36:01,525 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 28 treesize of output 42 [2021-10-29 05:36:01,639 INFO L354 Elim1Store]: treesize reduction 77, result has 29.4 percent of original size [2021-10-29 05:36:01,639 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 42 treesize of output 63 [2021-10-29 05:36:02,003 INFO L354 Elim1Store]: treesize reduction 32, result has 31.9 percent of original size [2021-10-29 05:36:02,004 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 45 treesize of output 52 [2021-10-29 05:36:02,055 INFO L354 Elim1Store]: treesize reduction 2, result has 92.0 percent of original size [2021-10-29 05:36:02,056 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 49 treesize of output 65 [2021-10-29 05:36:02,565 INFO L354 Elim1Store]: treesize reduction 336, result has 2.0 percent of original size [2021-10-29 05:36:02,566 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 4 case distinctions, treesize of input 116 treesize of output 71 [2021-10-29 05:36:02,649 INFO L354 Elim1Store]: treesize reduction 336, result has 2.0 percent of original size [2021-10-29 05:36:02,650 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 4 case distinctions, treesize of input 68 treesize of output 23 [2021-10-29 05:36:02,808 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 26 [2021-10-29 05:36:02,812 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 12 [2021-10-29 05:36:02,928 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:36:02,928 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 05:36:03,301 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:36:03,303 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 186 [2021-10-29 05:36:03,308 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:36:03,310 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 288 [2021-10-29 05:36:29,644 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:36:29,644 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 05:36:29,644 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [202535806] [2021-10-29 05:36:29,645 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [202535806] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 05:36:29,645 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:36:29,645 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 12 [2021-10-29 05:36:29,645 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [335736670] [2021-10-29 05:36:29,646 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-10-29 05:36:29,646 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 05:36:29,646 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-10-29 05:36:29,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=139, Unknown=8, NotChecked=0, Total=182 [2021-10-29 05:36:29,647 INFO L87 Difference]: Start difference. First operand 338 states and 345 transitions. Second operand has 14 states, 13 states have (on average 1.3846153846153846) internal successors, (18), 13 states have internal predecessors, (18), 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) [2021-10-29 05:36:32,571 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse3 (select (select |c_#memory_$Pointer$.offset| c_ULTIMATE.start_list_add_~head.base) c_ULTIMATE.start_list_add_~head.offset))) (let ((.cse4 (bvadd (_ bv8 32) .cse3))) (and (= (select |c_#length| c_ULTIMATE.start___list_add_~next.base) (_ bv8 32)) (forall ((v_DerPreprocessor_7 (_ BitVec 32)) (v_DerPreprocessor_6 (_ BitVec 32)) (v_DerPreprocessor_5 (_ BitVec 32)) (v_DerPreprocessor_10 (_ BitVec 32)) (ULTIMATE.start_gl_insert_~node~1.offset (_ BitVec 32)) (v_DerPreprocessor_11 (_ BitVec 32)) (v_DerPreprocessor_12 (_ BitVec 32)) (v_DerPreprocessor_9 (_ BitVec 32)) (v_DerPreprocessor_8 (_ BitVec 32))) (let ((.cse0 (bvadd ULTIMATE.start_gl_insert_~node~1.offset (_ bv1 32))) (.cse1 (bvadd (_ bv2 32) ULTIMATE.start_gl_insert_~node~1.offset)) (.cse2 (bvadd (_ bv3 32) ULTIMATE.start_gl_insert_~node~1.offset))) (bvule (bvadd (_ bv8 32) (select (select (store |c_#memory_$Pointer$.offset| c_ULTIMATE.start_gl_insert_~node~1.base (store (store (store (store (select |c_#memory_$Pointer$.offset| c_ULTIMATE.start_gl_insert_~node~1.base) ULTIMATE.start_gl_insert_~node~1.offset v_DerPreprocessor_9) .cse0 v_DerPreprocessor_10) .cse1 v_DerPreprocessor_11) .cse2 v_DerPreprocessor_12)) |c_~#gl_list~0.base|) |c_~#gl_list~0.offset|)) (select |c_#length| (select (select (store |c_#memory_$Pointer$.base| c_ULTIMATE.start_gl_insert_~node~1.base (store (store (store (store (select |c_#memory_$Pointer$.base| c_ULTIMATE.start_gl_insert_~node~1.base) ULTIMATE.start_gl_insert_~node~1.offset v_DerPreprocessor_5) .cse0 v_DerPreprocessor_6) .cse1 v_DerPreprocessor_7) .cse2 v_DerPreprocessor_8)) |c_~#gl_list~0.base|) |c_~#gl_list~0.offset|))))) (= (_ bv8 32) (select |c_#length| |c_ULTIMATE.start_list_add_#t~mem48.base|)) (bvule (bvadd (_ bv4 32) .cse3) .cse4) (bvule .cse4 (select |c_#length| (select (select |c_#memory_$Pointer$.base| c_ULTIMATE.start_list_add_~head.base) c_ULTIMATE.start_list_add_~head.offset))) (= |c_ULTIMATE.start_list_add_#t~mem48.offset| (_ bv0 32)) (forall ((v_DerPreprocessor_10 (_ BitVec 32)) (ULTIMATE.start_gl_insert_~node~1.offset (_ BitVec 32)) (v_DerPreprocessor_11 (_ BitVec 32)) (v_DerPreprocessor_12 (_ BitVec 32)) (v_DerPreprocessor_9 (_ BitVec 32))) (let ((.cse5 (select (select (store |c_#memory_$Pointer$.offset| c_ULTIMATE.start_gl_insert_~node~1.base (store (store (store (store (select |c_#memory_$Pointer$.offset| c_ULTIMATE.start_gl_insert_~node~1.base) ULTIMATE.start_gl_insert_~node~1.offset v_DerPreprocessor_9) (bvadd ULTIMATE.start_gl_insert_~node~1.offset (_ bv1 32)) v_DerPreprocessor_10) (bvadd (_ bv2 32) ULTIMATE.start_gl_insert_~node~1.offset) v_DerPreprocessor_11) (bvadd (_ bv3 32) ULTIMATE.start_gl_insert_~node~1.offset) v_DerPreprocessor_12)) |c_~#gl_list~0.base|) |c_~#gl_list~0.offset|))) (bvule (bvadd (_ bv4 32) .cse5) (bvadd (_ bv8 32) .cse5)))) (exists ((ULTIMATE.start_gl_insert_~node~1.base (_ BitVec 32))) (= (select |c_#length| ULTIMATE.start_gl_insert_~node~1.base) (_ bv20 32))) (= c_ULTIMATE.start___list_add_~next.offset (_ bv0 32)) (forall ((v_ULTIMATE.start_gl_insert_~node~1.base_20 (_ BitVec 32))) (or (and (forall ((v_DerPreprocessor_7 (_ BitVec 32)) (v_DerPreprocessor_6 (_ BitVec 32)) (v_DerPreprocessor_5 (_ BitVec 32)) (v_DerPreprocessor_10 (_ BitVec 32)) (ULTIMATE.start_gl_insert_~node~1.offset (_ BitVec 32)) (v_DerPreprocessor_11 (_ BitVec 32)) (v_DerPreprocessor_12 (_ BitVec 32)) (v_DerPreprocessor_9 (_ BitVec 32)) (v_DerPreprocessor_8 (_ BitVec 32))) (let ((.cse6 (bvadd ULTIMATE.start_gl_insert_~node~1.offset (_ bv1 32))) (.cse7 (bvadd (_ bv2 32) ULTIMATE.start_gl_insert_~node~1.offset)) (.cse8 (bvadd (_ bv3 32) ULTIMATE.start_gl_insert_~node~1.offset))) (bvule (bvadd (_ bv8 32) (select (select (store |c_#memory_$Pointer$.offset| v_ULTIMATE.start_gl_insert_~node~1.base_20 (store (store (store (store (select |c_#memory_$Pointer$.offset| v_ULTIMATE.start_gl_insert_~node~1.base_20) ULTIMATE.start_gl_insert_~node~1.offset v_DerPreprocessor_9) .cse6 v_DerPreprocessor_10) .cse7 v_DerPreprocessor_11) .cse8 v_DerPreprocessor_12)) |c_~#gl_list~0.base|) |c_~#gl_list~0.offset|)) (select (store |c_#length| v_ULTIMATE.start_gl_insert_~node~1.base_20 (_ bv20 32)) (select (select (store |c_#memory_$Pointer$.base| v_ULTIMATE.start_gl_insert_~node~1.base_20 (store (store (store (store (select |c_#memory_$Pointer$.base| v_ULTIMATE.start_gl_insert_~node~1.base_20) ULTIMATE.start_gl_insert_~node~1.offset v_DerPreprocessor_5) .cse6 v_DerPreprocessor_6) .cse7 v_DerPreprocessor_7) .cse8 v_DerPreprocessor_8)) |c_~#gl_list~0.base|) |c_~#gl_list~0.offset|))))) (forall ((v_DerPreprocessor_10 (_ BitVec 32)) (ULTIMATE.start_gl_insert_~node~1.offset (_ BitVec 32)) (v_DerPreprocessor_11 (_ BitVec 32)) (v_DerPreprocessor_12 (_ BitVec 32)) (v_DerPreprocessor_9 (_ BitVec 32))) (let ((.cse9 (select (select (store |c_#memory_$Pointer$.offset| v_ULTIMATE.start_gl_insert_~node~1.base_20 (store (store (store (store (select |c_#memory_$Pointer$.offset| v_ULTIMATE.start_gl_insert_~node~1.base_20) ULTIMATE.start_gl_insert_~node~1.offset v_DerPreprocessor_9) (bvadd ULTIMATE.start_gl_insert_~node~1.offset (_ bv1 32)) v_DerPreprocessor_10) (bvadd (_ bv2 32) ULTIMATE.start_gl_insert_~node~1.offset) v_DerPreprocessor_11) (bvadd (_ bv3 32) ULTIMATE.start_gl_insert_~node~1.offset) v_DerPreprocessor_12)) |c_~#gl_list~0.base|) |c_~#gl_list~0.offset|))) (bvule (bvadd (_ bv4 32) .cse9) (bvadd (_ bv8 32) .cse9))))) (not (= (_ bv0 1) (bvneg (select |c_#valid| v_ULTIMATE.start_gl_insert_~node~1.base_20))))))))) is different from false [2021-10-29 05:37:10,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:37:10,450 INFO L93 Difference]: Finished difference Result 646 states and 658 transitions. [2021-10-29 05:37:10,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-29 05:37:10,451 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 1.3846153846153846) internal successors, (18), 13 states have internal predecessors, (18), 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 9 [2021-10-29 05:37:10,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:37:10,454 INFO L225 Difference]: With dead ends: 646 [2021-10-29 05:37:10,454 INFO L226 Difference]: Without dead ends: 646 [2021-10-29 05:37:10,455 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 29.6s TimeCoverageRelationStatistics Valid=87, Invalid=214, Unknown=9, NotChecked=32, Total=342 [2021-10-29 05:37:10,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 646 states. [2021-10-29 05:37:10,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 646 to 338. [2021-10-29 05:37:10,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 338 states, 209 states have (on average 1.645933014354067) internal successors, (344), 337 states have internal predecessors, (344), 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) [2021-10-29 05:37:10,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 338 states to 338 states and 344 transitions. [2021-10-29 05:37:10,465 INFO L78 Accepts]: Start accepts. Automaton has 338 states and 344 transitions. Word has length 9 [2021-10-29 05:37:10,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:37:10,465 INFO L470 AbstractCegarLoop]: Abstraction has 338 states and 344 transitions. [2021-10-29 05:37:10,465 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 1.3846153846153846) internal successors, (18), 13 states have internal predecessors, (18), 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) [2021-10-29 05:37:10,465 INFO L276 IsEmpty]: Start isEmpty. Operand 338 states and 344 transitions. [2021-10-29 05:37:10,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-29 05:37:10,466 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:37:10,466 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:37:10,483 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692a0731-daee-4794-9f41-601c074d16f1/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-10-29 05:37:10,678 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692a0731-daee-4794-9f41-601c074d16f1/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 05:37:10,681 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr6REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 142 more)] === [2021-10-29 05:37:10,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:37:10,681 INFO L85 PathProgramCache]: Analyzing trace with hash -1984845326, now seen corresponding path program 1 times [2021-10-29 05:37:10,682 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 05:37:10,682 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [438335806] [2021-10-29 05:37:10,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:37:10,682 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 05:37:10,682 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692a0731-daee-4794-9f41-601c074d16f1/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 05:37:10,683 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692a0731-daee-4794-9f41-601c074d16f1/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 05:37:10,684 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692a0731-daee-4794-9f41-601c074d16f1/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-10-29 05:37:10,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:37:10,807 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-29 05:37:10,808 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 05:37:10,818 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-10-29 05:37:10,882 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:37:10,882 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 05:37:10,943 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:37:10,943 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 05:37:10,943 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [438335806] [2021-10-29 05:37:10,944 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [438335806] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 05:37:10,944 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:37:10,944 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-10-29 05:37:10,944 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1095182772] [2021-10-29 05:37:10,944 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-29 05:37:10,945 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 05:37:10,945 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-29 05:37:10,945 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-29 05:37:10,945 INFO L87 Difference]: Start difference. First operand 338 states and 344 transitions. Second operand has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 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) [2021-10-29 05:37:11,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:37:11,668 INFO L93 Difference]: Finished difference Result 521 states and 531 transitions. [2021-10-29 05:37:11,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-29 05:37:11,669 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 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 [2021-10-29 05:37:11,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:37:11,672 INFO L225 Difference]: With dead ends: 521 [2021-10-29 05:37:11,672 INFO L226 Difference]: Without dead ends: 521 [2021-10-29 05:37:11,672 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 3 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-10-29 05:37:11,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 521 states. [2021-10-29 05:37:11,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 521 to 335. [2021-10-29 05:37:11,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 335 states, 209 states have (on average 1.631578947368421) internal successors, (341), 334 states have internal predecessors, (341), 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) [2021-10-29 05:37:11,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 335 states to 335 states and 341 transitions. [2021-10-29 05:37:11,683 INFO L78 Accepts]: Start accepts. Automaton has 335 states and 341 transitions. Word has length 10 [2021-10-29 05:37:11,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:37:11,684 INFO L470 AbstractCegarLoop]: Abstraction has 335 states and 341 transitions. [2021-10-29 05:37:11,684 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 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) [2021-10-29 05:37:11,684 INFO L276 IsEmpty]: Start isEmpty. Operand 335 states and 341 transitions. [2021-10-29 05:37:11,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-29 05:37:11,685 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:37:11,685 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:37:11,700 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692a0731-daee-4794-9f41-601c074d16f1/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-10-29 05:37:11,899 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692a0731-daee-4794-9f41-601c074d16f1/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 05:37:11,900 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr7REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 142 more)] === [2021-10-29 05:37:11,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:37:11,900 INFO L85 PathProgramCache]: Analyzing trace with hash -1984845325, now seen corresponding path program 1 times [2021-10-29 05:37:11,900 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 05:37:11,901 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [527205262] [2021-10-29 05:37:11,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:37:11,901 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 05:37:11,901 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692a0731-daee-4794-9f41-601c074d16f1/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 05:37:11,902 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692a0731-daee-4794-9f41-601c074d16f1/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 05:37:11,905 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692a0731-daee-4794-9f41-601c074d16f1/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-10-29 05:37:12,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:37:12,036 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 11 conjunts are in the unsatisfiable core [2021-10-29 05:37:12,037 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 05:37:12,053 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-10-29 05:37:12,169 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:37:12,169 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 05:37:12,459 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:37:12,459 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 05:37:12,459 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [527205262] [2021-10-29 05:37:12,459 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [527205262] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 05:37:12,459 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:37:12,459 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 7 [2021-10-29 05:37:12,460 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1023758329] [2021-10-29 05:37:12,460 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-29 05:37:12,460 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 05:37:12,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-29 05:37:12,461 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-10-29 05:37:12,461 INFO L87 Difference]: Start difference. First operand 335 states and 341 transitions. Second operand has 8 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 8 states have internal predecessors, (18), 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) [2021-10-29 05:37:13,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:37:13,933 INFO L93 Difference]: Finished difference Result 509 states and 519 transitions. [2021-10-29 05:37:13,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-29 05:37:13,935 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 8 states have internal predecessors, (18), 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 [2021-10-29 05:37:13,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:37:13,938 INFO L225 Difference]: With dead ends: 509 [2021-10-29 05:37:13,938 INFO L226 Difference]: Without dead ends: 509 [2021-10-29 05:37:13,938 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2021-10-29 05:37:13,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 509 states. [2021-10-29 05:37:13,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 509 to 333. [2021-10-29 05:37:13,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 333 states, 209 states have (on average 1.6220095693779903) internal successors, (339), 332 states have internal predecessors, (339), 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) [2021-10-29 05:37:13,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 333 states to 333 states and 339 transitions. [2021-10-29 05:37:13,948 INFO L78 Accepts]: Start accepts. Automaton has 333 states and 339 transitions. Word has length 10 [2021-10-29 05:37:13,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:37:13,948 INFO L470 AbstractCegarLoop]: Abstraction has 333 states and 339 transitions. [2021-10-29 05:37:13,948 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 8 states have internal predecessors, (18), 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) [2021-10-29 05:37:13,949 INFO L276 IsEmpty]: Start isEmpty. Operand 333 states and 339 transitions. [2021-10-29 05:37:13,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-29 05:37:13,949 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:37:13,949 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:37:13,967 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692a0731-daee-4794-9f41-601c074d16f1/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-10-29 05:37:14,160 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692a0731-daee-4794-9f41-601c074d16f1/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 05:37:14,161 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr11REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 142 more)] === [2021-10-29 05:37:14,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:37:14,161 INFO L85 PathProgramCache]: Analyzing trace with hash -470878954, now seen corresponding path program 1 times [2021-10-29 05:37:14,162 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 05:37:14,162 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1654299870] [2021-10-29 05:37:14,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:37:14,162 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 05:37:14,163 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692a0731-daee-4794-9f41-601c074d16f1/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 05:37:14,163 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692a0731-daee-4794-9f41-601c074d16f1/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 05:37:14,207 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692a0731-daee-4794-9f41-601c074d16f1/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-10-29 05:37:14,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:37:14,345 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-29 05:37:14,346 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 05:37:14,493 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:37:14,493 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 05:37:14,708 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 6 [2021-10-29 05:37:14,801 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:37:14,802 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 05:37:14,802 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1654299870] [2021-10-29 05:37:14,802 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1654299870] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 05:37:14,802 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:37:14,802 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 8 [2021-10-29 05:37:14,802 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [288294705] [2021-10-29 05:37:14,802 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-29 05:37:14,803 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 05:37:14,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-29 05:37:14,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2021-10-29 05:37:14,803 INFO L87 Difference]: Start difference. First operand 333 states and 339 transitions. Second operand has 10 states, 9 states have (on average 2.6666666666666665) internal successors, (24), 9 states have internal predecessors, (24), 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) [2021-10-29 05:37:16,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:37:16,069 INFO L93 Difference]: Finished difference Result 507 states and 517 transitions. [2021-10-29 05:37:16,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-29 05:37:16,071 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.6666666666666665) internal successors, (24), 9 states have internal predecessors, (24), 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 [2021-10-29 05:37:16,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:37:16,073 INFO L225 Difference]: With dead ends: 507 [2021-10-29 05:37:16,073 INFO L226 Difference]: Without dead ends: 507 [2021-10-29 05:37:16,074 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=98, Invalid=208, Unknown=0, NotChecked=0, Total=306 [2021-10-29 05:37:16,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 507 states. [2021-10-29 05:37:16,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 507 to 331. [2021-10-29 05:37:16,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 331 states, 209 states have (on average 1.61244019138756) internal successors, (337), 330 states have internal predecessors, (337), 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) [2021-10-29 05:37:16,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 331 states to 331 states and 337 transitions. [2021-10-29 05:37:16,083 INFO L78 Accepts]: Start accepts. Automaton has 331 states and 337 transitions. Word has length 12 [2021-10-29 05:37:16,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:37:16,083 INFO L470 AbstractCegarLoop]: Abstraction has 331 states and 337 transitions. [2021-10-29 05:37:16,083 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.6666666666666665) internal successors, (24), 9 states have internal predecessors, (24), 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) [2021-10-29 05:37:16,084 INFO L276 IsEmpty]: Start isEmpty. Operand 331 states and 337 transitions. [2021-10-29 05:37:16,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-29 05:37:16,084 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:37:16,084 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:37:16,105 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692a0731-daee-4794-9f41-601c074d16f1/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-10-29 05:37:16,296 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692a0731-daee-4794-9f41-601c074d16f1/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 05:37:16,297 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr10REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 142 more)] === [2021-10-29 05:37:16,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:37:16,297 INFO L85 PathProgramCache]: Analyzing trace with hash -470878955, now seen corresponding path program 1 times [2021-10-29 05:37:16,297 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 05:37:16,298 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [836169878] [2021-10-29 05:37:16,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:37:16,298 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 05:37:16,298 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692a0731-daee-4794-9f41-601c074d16f1/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 05:37:16,299 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692a0731-daee-4794-9f41-601c074d16f1/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 05:37:16,301 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692a0731-daee-4794-9f41-601c074d16f1/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-10-29 05:37:16,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:37:16,470 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-29 05:37:16,470 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 05:37:16,526 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:37:16,527 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 05:37:16,567 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:37:16,567 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 05:37:16,567 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [836169878] [2021-10-29 05:37:16,567 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [836169878] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 05:37:16,567 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:37:16,568 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-10-29 05:37:16,568 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1169410267] [2021-10-29 05:37:16,568 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-29 05:37:16,568 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 05:37:16,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-29 05:37:16,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-29 05:37:16,569 INFO L87 Difference]: Start difference. First operand 331 states and 337 transitions. Second operand has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 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) [2021-10-29 05:37:17,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:37:17,017 INFO L93 Difference]: Finished difference Result 345 states and 351 transitions. [2021-10-29 05:37:17,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-29 05:37:17,018 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 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 [2021-10-29 05:37:17,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:37:17,019 INFO L225 Difference]: With dead ends: 345 [2021-10-29 05:37:17,019 INFO L226 Difference]: Without dead ends: 345 [2021-10-29 05:37:17,020 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-29 05:37:17,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 345 states. [2021-10-29 05:37:17,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 345 to 329. [2021-10-29 05:37:17,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 329 states, 209 states have (on average 1.6028708133971292) internal successors, (335), 328 states have internal predecessors, (335), 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) [2021-10-29 05:37:17,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 329 states to 329 states and 335 transitions. [2021-10-29 05:37:17,026 INFO L78 Accepts]: Start accepts. Automaton has 329 states and 335 transitions. Word has length 12 [2021-10-29 05:37:17,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:37:17,026 INFO L470 AbstractCegarLoop]: Abstraction has 329 states and 335 transitions. [2021-10-29 05:37:17,027 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 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) [2021-10-29 05:37:17,027 INFO L276 IsEmpty]: Start isEmpty. Operand 329 states and 335 transitions. [2021-10-29 05:37:17,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-10-29 05:37:17,028 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:37:17,028 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:37:17,045 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692a0731-daee-4794-9f41-601c074d16f1/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2021-10-29 05:37:17,238 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692a0731-daee-4794-9f41-601c074d16f1/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 05:37:17,239 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 142 more)] === [2021-10-29 05:37:17,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:37:17,239 INFO L85 PathProgramCache]: Analyzing trace with hash -1914034178, now seen corresponding path program 1 times [2021-10-29 05:37:17,240 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 05:37:17,240 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [773266628] [2021-10-29 05:37:17,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:37:17,240 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 05:37:17,240 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692a0731-daee-4794-9f41-601c074d16f1/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 05:37:17,241 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692a0731-daee-4794-9f41-601c074d16f1/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 05:37:17,242 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692a0731-daee-4794-9f41-601c074d16f1/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2021-10-29 05:37:17,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:37:17,395 INFO L263 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-29 05:37:17,396 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 05:37:17,510 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:37:17,510 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 05:37:17,603 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:37:17,603 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 05:37:17,603 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [773266628] [2021-10-29 05:37:17,603 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [773266628] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 05:37:17,604 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:37:17,604 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-10-29 05:37:17,604 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1891019943] [2021-10-29 05:37:17,604 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-29 05:37:17,604 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 05:37:17,605 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-29 05:37:17,605 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-29 05:37:17,605 INFO L87 Difference]: Start difference. First operand 329 states and 335 transitions. Second operand has 4 states, 4 states have (on average 5.25) internal successors, (21), 3 states have internal predecessors, (21), 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) [2021-10-29 05:37:17,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:37:17,955 INFO L93 Difference]: Finished difference Result 325 states and 331 transitions. [2021-10-29 05:37:17,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-29 05:37:17,956 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 3 states have internal predecessors, (21), 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 21 [2021-10-29 05:37:17,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:37:17,958 INFO L225 Difference]: With dead ends: 325 [2021-10-29 05:37:17,958 INFO L226 Difference]: Without dead ends: 325 [2021-10-29 05:37:17,958 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-29 05:37:17,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 325 states. [2021-10-29 05:37:17,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 325 to 325. [2021-10-29 05:37:17,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 325 states, 207 states have (on average 1.5990338164251208) internal successors, (331), 324 states have internal predecessors, (331), 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) [2021-10-29 05:37:17,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 325 states to 325 states and 331 transitions. [2021-10-29 05:37:17,965 INFO L78 Accepts]: Start accepts. Automaton has 325 states and 331 transitions. Word has length 21 [2021-10-29 05:37:17,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:37:17,966 INFO L470 AbstractCegarLoop]: Abstraction has 325 states and 331 transitions. [2021-10-29 05:37:17,966 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 3 states have internal predecessors, (21), 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) [2021-10-29 05:37:17,966 INFO L276 IsEmpty]: Start isEmpty. Operand 325 states and 331 transitions. [2021-10-29 05:37:17,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-10-29 05:37:17,967 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:37:17,967 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:37:17,980 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692a0731-daee-4794-9f41-601c074d16f1/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2021-10-29 05:37:18,179 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692a0731-daee-4794-9f41-601c074d16f1/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 05:37:18,179 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr17REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 142 more)] === [2021-10-29 05:37:18,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:37:18,180 INFO L85 PathProgramCache]: Analyzing trace with hash 794488727, now seen corresponding path program 1 times [2021-10-29 05:37:18,180 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 05:37:18,180 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [918486961] [2021-10-29 05:37:18,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:37:18,181 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 05:37:18,181 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692a0731-daee-4794-9f41-601c074d16f1/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 05:37:18,182 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692a0731-daee-4794-9f41-601c074d16f1/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 05:37:18,225 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692a0731-daee-4794-9f41-601c074d16f1/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2021-10-29 05:37:18,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:37:18,374 INFO L263 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-29 05:37:18,376 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 05:37:18,484 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:37:18,485 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 05:37:18,573 INFO L354 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2021-10-29 05:37:18,573 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 17 [2021-10-29 05:37:18,587 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:37:18,587 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 05:37:18,587 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [918486961] [2021-10-29 05:37:18,587 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [918486961] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 05:37:18,587 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:37:18,587 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-10-29 05:37:18,587 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1077029166] [2021-10-29 05:37:18,588 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-29 05:37:18,588 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 05:37:18,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-29 05:37:18,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-29 05:37:18,589 INFO L87 Difference]: Start difference. First operand 325 states and 331 transitions. Second operand has 5 states, 4 states have (on average 5.5) internal successors, (22), 5 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) [2021-10-29 05:37:19,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:37:19,498 INFO L93 Difference]: Finished difference Result 480 states and 490 transitions. [2021-10-29 05:37:19,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-29 05:37:19,499 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 5.5) internal successors, (22), 5 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 22 [2021-10-29 05:37:19,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:37:19,501 INFO L225 Difference]: With dead ends: 480 [2021-10-29 05:37:19,501 INFO L226 Difference]: Without dead ends: 480 [2021-10-29 05:37:19,501 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 39 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-10-29 05:37:19,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 480 states. [2021-10-29 05:37:19,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 480 to 315. [2021-10-29 05:37:19,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 315 states, 207 states have (on average 1.5507246376811594) internal successors, (321), 314 states have internal predecessors, (321), 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) [2021-10-29 05:37:19,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 315 states to 315 states and 321 transitions. [2021-10-29 05:37:19,510 INFO L78 Accepts]: Start accepts. Automaton has 315 states and 321 transitions. Word has length 22 [2021-10-29 05:37:19,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:37:19,510 INFO L470 AbstractCegarLoop]: Abstraction has 315 states and 321 transitions. [2021-10-29 05:37:19,511 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 5.5) internal successors, (22), 5 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) [2021-10-29 05:37:19,511 INFO L276 IsEmpty]: Start isEmpty. Operand 315 states and 321 transitions. [2021-10-29 05:37:19,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-10-29 05:37:19,512 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:37:19,512 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:37:19,534 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692a0731-daee-4794-9f41-601c074d16f1/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (14)] Ended with exit code 0 [2021-10-29 05:37:19,724 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692a0731-daee-4794-9f41-601c074d16f1/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 05:37:19,724 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr18REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 142 more)] === [2021-10-29 05:37:19,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:37:19,725 INFO L85 PathProgramCache]: Analyzing trace with hash 794488728, now seen corresponding path program 1 times [2021-10-29 05:37:19,725 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 05:37:19,725 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [177595242] [2021-10-29 05:37:19,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:37:19,726 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 05:37:19,726 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692a0731-daee-4794-9f41-601c074d16f1/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 05:37:19,727 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692a0731-daee-4794-9f41-601c074d16f1/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 05:37:19,759 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692a0731-daee-4794-9f41-601c074d16f1/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2021-10-29 05:37:19,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:37:19,979 INFO L263 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 11 conjunts are in the unsatisfiable core [2021-10-29 05:37:19,981 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 05:37:20,278 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:37:20,278 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 05:37:20,658 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:37:20,658 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 22 treesize of output 26 [2021-10-29 05:37:20,926 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:37:20,926 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 05:37:20,926 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [177595242] [2021-10-29 05:37:20,926 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [177595242] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 05:37:20,926 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:37:20,927 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 8 [2021-10-29 05:37:20,927 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1746029867] [2021-10-29 05:37:20,927 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-29 05:37:20,927 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 05:37:20,928 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-29 05:37:20,928 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2021-10-29 05:37:20,928 INFO L87 Difference]: Start difference. First operand 315 states and 321 transitions. Second operand has 10 states, 9 states have (on average 4.888888888888889) internal successors, (44), 9 states have internal predecessors, (44), 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) [2021-10-29 05:37:22,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:37:22,587 INFO L93 Difference]: Finished difference Result 474 states and 484 transitions. [2021-10-29 05:37:22,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-29 05:37:22,588 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 4.888888888888889) internal successors, (44), 9 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2021-10-29 05:37:22,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:37:22,590 INFO L225 Difference]: With dead ends: 474 [2021-10-29 05:37:22,590 INFO L226 Difference]: Without dead ends: 474 [2021-10-29 05:37:22,590 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=76, Invalid=134, Unknown=0, NotChecked=0, Total=210 [2021-10-29 05:37:22,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 474 states. [2021-10-29 05:37:22,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 474 to 311. [2021-10-29 05:37:22,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 311 states, 207 states have (on average 1.5314009661835748) internal successors, (317), 310 states have internal predecessors, (317), 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) [2021-10-29 05:37:22,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 311 states to 311 states and 317 transitions. [2021-10-29 05:37:22,597 INFO L78 Accepts]: Start accepts. Automaton has 311 states and 317 transitions. Word has length 22 [2021-10-29 05:37:22,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:37:22,597 INFO L470 AbstractCegarLoop]: Abstraction has 311 states and 317 transitions. [2021-10-29 05:37:22,598 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 4.888888888888889) internal successors, (44), 9 states have internal predecessors, (44), 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) [2021-10-29 05:37:22,598 INFO L276 IsEmpty]: Start isEmpty. Operand 311 states and 317 transitions. [2021-10-29 05:37:22,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-10-29 05:37:22,599 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:37:22,599 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:37:22,615 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692a0731-daee-4794-9f41-601c074d16f1/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (15)] Ended with exit code 0 [2021-10-29 05:37:22,810 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692a0731-daee-4794-9f41-601c074d16f1/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 05:37:22,812 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 142 more)] === [2021-10-29 05:37:22,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:37:22,812 INFO L85 PathProgramCache]: Analyzing trace with hash -1000510088, now seen corresponding path program 1 times [2021-10-29 05:37:22,812 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 05:37:22,812 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1359329286] [2021-10-29 05:37:22,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:37:22,813 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 05:37:22,813 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692a0731-daee-4794-9f41-601c074d16f1/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 05:37:22,813 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692a0731-daee-4794-9f41-601c074d16f1/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 05:37:22,814 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692a0731-daee-4794-9f41-601c074d16f1/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2021-10-29 05:37:23,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:37:23,072 INFO L263 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 23 conjunts are in the unsatisfiable core [2021-10-29 05:37:23,074 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 05:37:23,151 INFO L354 Elim1Store]: treesize reduction 77, result has 29.4 percent of original size [2021-10-29 05:37:23,153 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 15 treesize of output 37 [2021-10-29 05:37:23,358 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-10-29 05:37:23,358 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 [2021-10-29 05:37:23,606 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-10-29 05:37:23,668 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-10-29 05:37:23,768 INFO L354 Elim1Store]: treesize reduction 43, result has 14.0 percent of original size [2021-10-29 05:37:23,768 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 51 treesize of output 27 [2021-10-29 05:37:23,968 INFO L354 Elim1Store]: treesize reduction 13, result has 7.1 percent of original size [2021-10-29 05:37:23,968 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 14 [2021-10-29 05:37:24,006 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:37:24,006 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 05:37:28,189 WARN L838 $PredicateComparison]: unable to prove that (forall ((ULTIMATE.start_gl_insert_~node~1.offset (_ BitVec 32))) (not (= |c_~#gl_list~0.base| (select (select (store |c_#memory_$Pointer$.base| c_ULTIMATE.start_gl_insert_~node~1.base (store (select |c_#memory_$Pointer$.base| c_ULTIMATE.start_gl_insert_~node~1.base) (bvadd ULTIMATE.start_gl_insert_~node~1.offset (_ bv12 32)) c_ULTIMATE.start_gl_insert_~node~1.base)) |c_~#gl_list~0.base|) |c_~#gl_list~0.offset|)))) is different from false [2021-10-29 05:37:28,208 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 178 treesize of output 170 [2021-10-29 05:37:28,485 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:37:28,485 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 05:37:28,485 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1359329286] [2021-10-29 05:37:28,486 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1359329286] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 05:37:28,486 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:37:28,486 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10, 10] imperfect sequences [] total 16 [2021-10-29 05:37:28,486 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [131034845] [2021-10-29 05:37:28,486 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2021-10-29 05:37:28,486 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 05:37:28,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-10-29 05:37:28,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=194, Unknown=2, NotChecked=28, Total=272 [2021-10-29 05:37:28,488 INFO L87 Difference]: Start difference. First operand 311 states and 317 transitions. Second operand has 17 states, 17 states have (on average 2.411764705882353) internal successors, (41), 16 states have internal predecessors, (41), 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) [2021-10-29 05:37:40,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:37:40,432 INFO L93 Difference]: Finished difference Result 483 states and 493 transitions. [2021-10-29 05:37:40,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-10-29 05:37:40,433 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.411764705882353) internal successors, (41), 16 states have internal predecessors, (41), 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 24 [2021-10-29 05:37:40,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:37:40,435 INFO L225 Difference]: With dead ends: 483 [2021-10-29 05:37:40,435 INFO L226 Difference]: Without dead ends: 483 [2021-10-29 05:37:40,436 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 31 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 115 ImplicationChecksByTransitivity, 5.3s TimeCoverageRelationStatistics Valid=207, Invalid=551, Unknown=2, NotChecked=52, Total=812 [2021-10-29 05:37:40,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 483 states. [2021-10-29 05:37:40,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 483 to 331. [2021-10-29 05:37:40,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 331 states, 228 states have (on average 1.5175438596491229) internal successors, (346), 330 states have internal predecessors, (346), 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) [2021-10-29 05:37:40,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 331 states to 331 states and 346 transitions. [2021-10-29 05:37:40,444 INFO L78 Accepts]: Start accepts. Automaton has 331 states and 346 transitions. Word has length 24 [2021-10-29 05:37:40,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:37:40,444 INFO L470 AbstractCegarLoop]: Abstraction has 331 states and 346 transitions. [2021-10-29 05:37:40,445 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.411764705882353) internal successors, (41), 16 states have internal predecessors, (41), 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) [2021-10-29 05:37:40,445 INFO L276 IsEmpty]: Start isEmpty. Operand 331 states and 346 transitions. [2021-10-29 05:37:40,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-10-29 05:37:40,446 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:37:40,446 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:37:40,462 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692a0731-daee-4794-9f41-601c074d16f1/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2021-10-29 05:37:40,659 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692a0731-daee-4794-9f41-601c074d16f1/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 05:37:40,659 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr21REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 142 more)] === [2021-10-29 05:37:40,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:37:40,659 INFO L85 PathProgramCache]: Analyzing trace with hash -951035532, now seen corresponding path program 1 times [2021-10-29 05:37:40,660 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 05:37:40,660 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1205044597] [2021-10-29 05:37:40,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:37:40,660 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 05:37:40,660 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692a0731-daee-4794-9f41-601c074d16f1/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 05:37:40,662 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692a0731-daee-4794-9f41-601c074d16f1/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 05:37:40,663 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692a0731-daee-4794-9f41-601c074d16f1/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2021-10-29 05:37:40,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:37:40,982 INFO L263 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 10 conjunts are in the unsatisfiable core [2021-10-29 05:37:40,984 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 05:37:41,072 INFO L354 Elim1Store]: treesize reduction 33, result has 40.0 percent of original size [2021-10-29 05:37:41,073 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 28 treesize of output 42 [2021-10-29 05:37:41,156 INFO L354 Elim1Store]: treesize reduction 77, result has 29.4 percent of original size [2021-10-29 05:37:41,157 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 42 treesize of output 63 [2021-10-29 05:37:41,405 INFO L354 Elim1Store]: treesize reduction 32, result has 31.9 percent of original size [2021-10-29 05:37:41,407 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 45 treesize of output 52 [2021-10-29 05:37:41,445 INFO L354 Elim1Store]: treesize reduction 2, result has 92.0 percent of original size [2021-10-29 05:37:41,445 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 49 treesize of output 65 [2021-10-29 05:37:41,888 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:37:41,888 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 05:37:44,624 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:37:44,624 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 05:37:44,624 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1205044597] [2021-10-29 05:37:44,624 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1205044597] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 05:37:44,625 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:37:44,625 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 6 [2021-10-29 05:37:44,625 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1392660354] [2021-10-29 05:37:44,625 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-29 05:37:44,625 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 05:37:44,625 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-29 05:37:44,625 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=37, Unknown=1, NotChecked=0, Total=56 [2021-10-29 05:37:44,626 INFO L87 Difference]: Start difference. First operand 331 states and 346 transitions. Second operand has 8 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 states have internal predecessors, (50), 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) [2021-10-29 05:37:46,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:37:46,186 INFO L93 Difference]: Finished difference Result 343 states and 358 transitions. [2021-10-29 05:37:46,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-29 05:37:46,186 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2021-10-29 05:37:46,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:37:46,188 INFO L225 Difference]: With dead ends: 343 [2021-10-29 05:37:46,188 INFO L226 Difference]: Without dead ends: 343 [2021-10-29 05:37:46,189 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=42, Invalid=67, Unknown=1, NotChecked=0, Total=110 [2021-10-29 05:37:46,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 343 states. [2021-10-29 05:37:46,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 343 to 327. [2021-10-29 05:37:46,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 327 states, 228 states have (on average 1.5) internal successors, (342), 326 states have internal predecessors, (342), 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) [2021-10-29 05:37:46,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 327 states to 327 states and 342 transitions. [2021-10-29 05:37:46,196 INFO L78 Accepts]: Start accepts. Automaton has 327 states and 342 transitions. Word has length 25 [2021-10-29 05:37:46,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:37:46,196 INFO L470 AbstractCegarLoop]: Abstraction has 327 states and 342 transitions. [2021-10-29 05:37:46,196 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 states have internal predecessors, (50), 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) [2021-10-29 05:37:46,197 INFO L276 IsEmpty]: Start isEmpty. Operand 327 states and 342 transitions. [2021-10-29 05:37:46,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-10-29 05:37:46,197 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:37:46,198 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:37:46,214 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692a0731-daee-4794-9f41-601c074d16f1/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2021-10-29 05:37:46,411 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692a0731-daee-4794-9f41-601c074d16f1/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 05:37:46,411 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 142 more)] === [2021-10-29 05:37:46,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:37:46,412 INFO L85 PathProgramCache]: Analyzing trace with hash 1591099974, now seen corresponding path program 1 times [2021-10-29 05:37:46,412 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 05:37:46,412 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1086647812] [2021-10-29 05:37:46,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:37:46,412 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 05:37:46,412 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692a0731-daee-4794-9f41-601c074d16f1/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 05:37:46,413 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692a0731-daee-4794-9f41-601c074d16f1/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 05:37:46,416 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692a0731-daee-4794-9f41-601c074d16f1/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2021-10-29 05:37:46,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:37:46,816 INFO L263 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 30 conjunts are in the unsatisfiable core [2021-10-29 05:37:46,818 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 05:37:46,900 INFO L354 Elim1Store]: treesize reduction 77, result has 29.4 percent of original size [2021-10-29 05:37:46,900 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 15 treesize of output 37 [2021-10-29 05:37:47,102 INFO L354 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2021-10-29 05:37:47,102 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 21 treesize of output 28 [2021-10-29 05:37:47,573 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-10-29 05:37:47,674 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-10-29 05:37:47,814 INFO L354 Elim1Store]: treesize reduction 43, result has 14.0 percent of original size [2021-10-29 05:37:47,815 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 66 treesize of output 38 [2021-10-29 05:37:48,066 INFO L354 Elim1Store]: treesize reduction 42, result has 44.0 percent of original size [2021-10-29 05:37:48,066 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 50 treesize of output 71 [2021-10-29 05:37:48,449 INFO L354 Elim1Store]: treesize reduction 566, result has 2.9 percent of original size [2021-10-29 05:37:48,450 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 114 treesize of output 59 [2021-10-29 05:37:48,753 INFO L354 Elim1Store]: treesize reduction 13, result has 7.1 percent of original size [2021-10-29 05:37:48,753 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 97 treesize of output 70 [2021-10-29 05:37:49,130 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:37:49,130 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 05:37:49,308 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:37:49,309 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 125 [2021-10-29 05:37:51,337 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_DerPreprocessor_13 (_ BitVec 32)) (ULTIMATE.start_gl_insert_~node~1.offset (_ BitVec 32)) (v_DerPreprocessor_14 (_ BitVec 32)) (v_DerPreprocessor_15 (_ BitVec 32)) (v_DerPreprocessor_16 (_ BitVec 32))) (= (_ bv0 1) (bvadd (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (select |c_#valid| (select (select (store |c_#memory_$Pointer$.base| c_ULTIMATE.start_gl_insert_~node~1.base (store (store (store (store (select |c_#memory_$Pointer$.base| c_ULTIMATE.start_gl_insert_~node~1.base) ULTIMATE.start_gl_insert_~node~1.offset v_DerPreprocessor_13) (bvadd ULTIMATE.start_gl_insert_~node~1.offset (_ bv1 32)) v_DerPreprocessor_14) (bvadd (_ bv2 32) ULTIMATE.start_gl_insert_~node~1.offset) v_DerPreprocessor_15) (bvadd (_ bv3 32) ULTIMATE.start_gl_insert_~node~1.offset) v_DerPreprocessor_16)) |c_~#gl_list~0.base|) |c_~#gl_list~0.offset|))))))))))) (_ bv1 1)))) is different from false [2021-10-29 05:37:53,394 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_DerPreprocessor_13 (_ BitVec 32)) (ULTIMATE.start_gl_insert_~node~1.offset (_ BitVec 32)) (v_DerPreprocessor_14 (_ BitVec 32)) (v_ULTIMATE.start_gl_insert_~node~1.base_28 (_ BitVec 32)) (v_DerPreprocessor_15 (_ BitVec 32)) (v_DerPreprocessor_16 (_ BitVec 32))) (or (= (_ bv0 1) (bvadd (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (select (store |c_#valid| v_ULTIMATE.start_gl_insert_~node~1.base_28 (_ bv1 1)) (select (select (store |c_#memory_$Pointer$.base| v_ULTIMATE.start_gl_insert_~node~1.base_28 (store (store (store (store (select |c_#memory_$Pointer$.base| v_ULTIMATE.start_gl_insert_~node~1.base_28) ULTIMATE.start_gl_insert_~node~1.offset v_DerPreprocessor_13) (bvadd ULTIMATE.start_gl_insert_~node~1.offset (_ bv1 32)) v_DerPreprocessor_14) (bvadd (_ bv2 32) ULTIMATE.start_gl_insert_~node~1.offset) v_DerPreprocessor_15) (bvadd (_ bv3 32) ULTIMATE.start_gl_insert_~node~1.offset) v_DerPreprocessor_16)) |c_~#gl_list~0.base|) |c_~#gl_list~0.offset|))))))))))) (_ bv1 1))) (not (= (_ bv0 1) (bvneg (bvneg (select |c_#valid| v_ULTIMATE.start_gl_insert_~node~1.base_28))))))) is different from false [2021-10-29 05:37:55,623 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_DerPreprocessor_13 (_ BitVec 32)) (v_ULTIMATE.start_gl_insert_~node~1.offset_27 (_ BitVec 32)) (v_DerPreprocessor_14 (_ BitVec 32)) (v_ULTIMATE.start_gl_insert_~node~1.base_28 (_ BitVec 32)) (v_DerPreprocessor_15 (_ BitVec 32)) (v_DerPreprocessor_16 (_ BitVec 32))) (or (not (= (_ bv0 1) (bvneg (bvneg (select |c_#valid| v_ULTIMATE.start_gl_insert_~node~1.base_28))))) (= (_ bv0 1) (bvadd (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (select (store |c_#valid| v_ULTIMATE.start_gl_insert_~node~1.base_28 (_ bv1 1)) (select (select (let ((.cse0 (store |c_#memory_$Pointer$.base| c_ULTIMATE.start_gl_insert_~node~1.base (store (select |c_#memory_$Pointer$.base| c_ULTIMATE.start_gl_insert_~node~1.base) (bvadd c_ULTIMATE.start_gl_insert_~node~1.offset (_ bv12 32)) c_ULTIMATE.start_gl_insert_~node~1.base)))) (store .cse0 v_ULTIMATE.start_gl_insert_~node~1.base_28 (store (store (store (store (select .cse0 v_ULTIMATE.start_gl_insert_~node~1.base_28) v_ULTIMATE.start_gl_insert_~node~1.offset_27 v_DerPreprocessor_13) (bvadd v_ULTIMATE.start_gl_insert_~node~1.offset_27 (_ bv1 32)) v_DerPreprocessor_14) (bvadd (_ bv2 32) v_ULTIMATE.start_gl_insert_~node~1.offset_27) v_DerPreprocessor_15) (bvadd (_ bv3 32) v_ULTIMATE.start_gl_insert_~node~1.offset_27) v_DerPreprocessor_16))) |c_~#gl_list~0.base|) |c_~#gl_list~0.offset|))))))))))))) (_ bv1 1))))) is different from false [2021-10-29 05:37:57,695 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_DerPreprocessor_13 (_ BitVec 32)) (ULTIMATE.start_gl_insert_~node~1.offset (_ BitVec 32)) (v_ULTIMATE.start_gl_insert_~node~1.offset_27 (_ BitVec 32)) (v_DerPreprocessor_14 (_ BitVec 32)) (v_ULTIMATE.start_gl_insert_~node~1.base_28 (_ BitVec 32)) (v_DerPreprocessor_15 (_ BitVec 32)) (v_DerPreprocessor_16 (_ BitVec 32))) (or (= (_ bv0 1) (bvadd (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (select (store |c_#valid| v_ULTIMATE.start_gl_insert_~node~1.base_28 (_ bv1 1)) (select (select (let ((.cse0 (store |c_#memory_$Pointer$.base| c_ULTIMATE.start_gl_insert_~node~1.base (store (select |c_#memory_$Pointer$.base| c_ULTIMATE.start_gl_insert_~node~1.base) (bvadd ULTIMATE.start_gl_insert_~node~1.offset (_ bv12 32)) c_ULTIMATE.start_gl_insert_~node~1.base)))) (store .cse0 v_ULTIMATE.start_gl_insert_~node~1.base_28 (store (store (store (store (select .cse0 v_ULTIMATE.start_gl_insert_~node~1.base_28) v_ULTIMATE.start_gl_insert_~node~1.offset_27 v_DerPreprocessor_13) (bvadd v_ULTIMATE.start_gl_insert_~node~1.offset_27 (_ bv1 32)) v_DerPreprocessor_14) (bvadd (_ bv2 32) v_ULTIMATE.start_gl_insert_~node~1.offset_27) v_DerPreprocessor_15) (bvadd (_ bv3 32) v_ULTIMATE.start_gl_insert_~node~1.offset_27) v_DerPreprocessor_16))) |c_~#gl_list~0.base|) |c_~#gl_list~0.offset|)))))))))))))) (_ bv1 1))) (not (= (_ bv0 1) (bvneg (bvneg (select |c_#valid| v_ULTIMATE.start_gl_insert_~node~1.base_28))))))) is different from false [2021-10-29 05:37:57,823 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11014098 treesize of output 10997714 [2021-10-29 05:38:26,858 WARN L207 SmtUtils]: Spent 29.03 s on a formula simplification that was a NOOP. DAG size: 2990 [2021-10-29 05:38:27,406 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 05:38:27,406 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1086647812] [2021-10-29 05:38:27,407 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: BigInteger out of long range [2021-10-29 05:38:27,407 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [341328805] [2021-10-29 05:38:27,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:38:27,407 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-29 05:38:27,407 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692a0731-daee-4794-9f41-601c074d16f1/bin/utaipan-SDwSMHVbGG/cvc4 [2021-10-29 05:38:27,413 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692a0731-daee-4794-9f41-601c074d16f1/bin/utaipan-SDwSMHVbGG/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-29 05:38:27,431 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692a0731-daee-4794-9f41-601c074d16f1/bin/utaipan-SDwSMHVbGG/cvc4 --incremental --print-success --lang smt (19)] Waiting until timeout for monitored process [2021-10-29 05:38:28,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:38:28,107 INFO L263 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 33 conjunts are in the unsatisfiable core [2021-10-29 05:38:28,108 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 05:38:28,123 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2021-10-29 05:38:28,214 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-10-29 05:38:28,761 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-10-29 05:38:28,889 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:38:28,889 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-10-29 05:38:29,097 INFO L354 Elim1Store]: treesize reduction 43, result has 14.0 percent of original size [2021-10-29 05:38:29,097 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 64 treesize of output 36 [2021-10-29 05:38:29,356 INFO L354 Elim1Store]: treesize reduction 27, result has 43.8 percent of original size [2021-10-29 05:38:29,356 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 27 treesize of output 38 [2021-10-29 05:38:29,819 INFO L354 Elim1Store]: treesize reduction 566, result has 2.9 percent of original size [2021-10-29 05:38:29,819 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 112 treesize of output 57 [2021-10-29 05:38:30,263 INFO L354 Elim1Store]: treesize reduction 13, result has 7.1 percent of original size [2021-10-29 05:38:30,264 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 72 treesize of output 45 [2021-10-29 05:38:30,700 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:38:30,700 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 05:38:30,754 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:38:30,755 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 124 [2021-10-29 05:38:41,373 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 188117 treesize of output 187861 [2021-10-29 05:38:41,816 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: BigInteger out of long range [2021-10-29 05:38:41,816 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [987540125] [2021-10-29 05:38:41,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:38:41,816 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-29 05:38:41,817 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692a0731-daee-4794-9f41-601c074d16f1/bin/utaipan-SDwSMHVbGG/z3 [2021-10-29 05:38:41,822 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692a0731-daee-4794-9f41-601c074d16f1/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-29 05:38:41,823 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692a0731-daee-4794-9f41-601c074d16f1/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2021-10-29 05:38:42,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:38:42,216 INFO L263 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 30 conjunts are in the unsatisfiable core [2021-10-29 05:38:42,218 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 05:38:42,299 INFO L354 Elim1Store]: treesize reduction 77, result has 29.4 percent of original size [2021-10-29 05:38:42,300 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 15 treesize of output 37 [2021-10-29 05:38:42,475 INFO L354 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2021-10-29 05:38:42,475 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 24 treesize of output 31 [2021-10-29 05:38:42,848 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-10-29 05:38:42,914 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-10-29 05:38:42,981 INFO L354 Elim1Store]: treesize reduction 43, result has 14.0 percent of original size [2021-10-29 05:38:42,981 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 66 treesize of output 38 [2021-10-29 05:38:43,194 INFO L354 Elim1Store]: treesize reduction 42, result has 44.0 percent of original size [2021-10-29 05:38:43,195 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 42 treesize of output 63 [2021-10-29 05:38:43,584 INFO L354 Elim1Store]: treesize reduction 566, result has 2.9 percent of original size [2021-10-29 05:38:43,585 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 114 treesize of output 59 [2021-10-29 05:38:43,843 INFO L354 Elim1Store]: treesize reduction 13, result has 7.1 percent of original size [2021-10-29 05:38:43,844 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 97 treesize of output 70 [2021-10-29 05:38:44,082 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:38:44,082 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 05:38:44,112 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:38:44,114 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 125 [2021-10-29 05:38:48,817 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ULTIMATE.start_gl_insert_~node~1.base_30 (_ BitVec 32)) (v_DerPreprocessor_19 (_ BitVec 32)) (v_DerPreprocessor_20 (_ BitVec 32)) (ULTIMATE.start_gl_insert_~node~1.offset (_ BitVec 32)) (v_DerPreprocessor_17 (_ BitVec 32)) (v_DerPreprocessor_18 (_ BitVec 32))) (or (not (= (_ bv0 1) (bvneg (select |c_#valid| v_ULTIMATE.start_gl_insert_~node~1.base_30)))) (= (_ bv0 1) (bvadd (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (select (store |c_#valid| v_ULTIMATE.start_gl_insert_~node~1.base_30 (_ bv1 1)) (select (select (store |c_#memory_$Pointer$.base| v_ULTIMATE.start_gl_insert_~node~1.base_30 (store (store (store (store (select |c_#memory_$Pointer$.base| v_ULTIMATE.start_gl_insert_~node~1.base_30) ULTIMATE.start_gl_insert_~node~1.offset v_DerPreprocessor_17) (bvadd ULTIMATE.start_gl_insert_~node~1.offset (_ bv1 32)) v_DerPreprocessor_18) (bvadd (_ bv2 32) ULTIMATE.start_gl_insert_~node~1.offset) v_DerPreprocessor_19) (bvadd (_ bv3 32) ULTIMATE.start_gl_insert_~node~1.offset) v_DerPreprocessor_20)) |c_~#gl_list~0.base|) |c_~#gl_list~0.offset|))))))))))))) (_ bv1 1))))) is different from false [2021-10-29 05:38:50,973 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ULTIMATE.start_gl_insert_~node~1.base_30 (_ BitVec 32)) (v_DerPreprocessor_19 (_ BitVec 32)) (v_ULTIMATE.start_gl_insert_~node~1.offset_33 (_ BitVec 32)) (v_DerPreprocessor_20 (_ BitVec 32)) (v_DerPreprocessor_17 (_ BitVec 32)) (v_DerPreprocessor_18 (_ BitVec 32))) (or (not (= (_ bv0 1) (bvneg (select |c_#valid| v_ULTIMATE.start_gl_insert_~node~1.base_30)))) (= (_ bv0 1) (bvadd (_ bv1 1) (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (select (store |c_#valid| v_ULTIMATE.start_gl_insert_~node~1.base_30 (_ bv1 1)) (select (select (let ((.cse0 (store |c_#memory_$Pointer$.base| c_ULTIMATE.start_gl_insert_~node~1.base (store (select |c_#memory_$Pointer$.base| c_ULTIMATE.start_gl_insert_~node~1.base) (bvadd c_ULTIMATE.start_gl_insert_~node~1.offset (_ bv12 32)) c_ULTIMATE.start_gl_insert_~node~1.base)))) (store .cse0 v_ULTIMATE.start_gl_insert_~node~1.base_30 (store (store (store (store (select .cse0 v_ULTIMATE.start_gl_insert_~node~1.base_30) v_ULTIMATE.start_gl_insert_~node~1.offset_33 v_DerPreprocessor_17) (bvadd v_ULTIMATE.start_gl_insert_~node~1.offset_33 (_ bv1 32)) v_DerPreprocessor_18) (bvadd (_ bv2 32) v_ULTIMATE.start_gl_insert_~node~1.offset_33) v_DerPreprocessor_19) (bvadd (_ bv3 32) v_ULTIMATE.start_gl_insert_~node~1.offset_33) v_DerPreprocessor_20))) |c_~#gl_list~0.base|) |c_~#gl_list~0.offset|)))))))))))))))))) is different from false [2021-10-29 05:38:53,029 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ULTIMATE.start_gl_insert_~node~1.base_30 (_ BitVec 32)) (v_DerPreprocessor_19 (_ BitVec 32)) (v_ULTIMATE.start_gl_insert_~node~1.offset_33 (_ BitVec 32)) (v_DerPreprocessor_20 (_ BitVec 32)) (ULTIMATE.start_gl_insert_~node~1.offset (_ BitVec 32)) (v_DerPreprocessor_17 (_ BitVec 32)) (v_DerPreprocessor_18 (_ BitVec 32))) (or (not (= (_ bv0 1) (bvneg (select |c_#valid| v_ULTIMATE.start_gl_insert_~node~1.base_30)))) (= (_ bv0 1) (bvadd (_ bv1 1) (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (select (store |c_#valid| v_ULTIMATE.start_gl_insert_~node~1.base_30 (_ bv1 1)) (select (select (let ((.cse0 (store |c_#memory_$Pointer$.base| c_ULTIMATE.start_gl_insert_~node~1.base (store (select |c_#memory_$Pointer$.base| c_ULTIMATE.start_gl_insert_~node~1.base) (bvadd ULTIMATE.start_gl_insert_~node~1.offset (_ bv12 32)) c_ULTIMATE.start_gl_insert_~node~1.base)))) (store .cse0 v_ULTIMATE.start_gl_insert_~node~1.base_30 (store (store (store (store (select .cse0 v_ULTIMATE.start_gl_insert_~node~1.base_30) v_ULTIMATE.start_gl_insert_~node~1.offset_33 v_DerPreprocessor_17) (bvadd v_ULTIMATE.start_gl_insert_~node~1.offset_33 (_ bv1 32)) v_DerPreprocessor_18) (bvadd (_ bv2 32) v_ULTIMATE.start_gl_insert_~node~1.offset_33) v_DerPreprocessor_19) (bvadd (_ bv3 32) v_ULTIMATE.start_gl_insert_~node~1.offset_33) v_DerPreprocessor_20))) |c_~#gl_list~0.base|) |c_~#gl_list~0.offset|)))))))))))))))))) is different from false [2021-10-29 05:38:53,137 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 89780205 treesize of output 89649133 [2021-10-29 05:42:45,212 WARN L207 SmtUtils]: Spent 3.87 m on a formula simplification that was a NOOP. DAG size: 4247 [2021-10-29 05:42:46,128 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: BigInteger out of long range [2021-10-29 05:42:46,129 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:42:46,129 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [] total 0 [2021-10-29 05:42:46,129 ERROR L172 FreeRefinementEngine]: Strategy WALRUS failed to provide any proof altough trace is infeasible [2021-10-29 05:42:46,130 INFO L627 BasicCegarLoop]: Counterexample might be feasible [2021-10-29 05:42:46,138 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATION [2021-10-29 05:42:46,141 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATION [2021-10-29 05:42:46,141 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATION [2021-10-29 05:42:46,141 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATION [2021-10-29 05:42:46,141 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATION [2021-10-29 05:42:46,142 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5REQUIRES_VIOLATION [2021-10-29 05:42:46,142 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6REQUIRES_VIOLATION [2021-10-29 05:42:46,142 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7REQUIRES_VIOLATION [2021-10-29 05:42:46,142 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8REQUIRES_VIOLATION [2021-10-29 05:42:46,143 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9REQUIRES_VIOLATION [2021-10-29 05:42:46,143 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10REQUIRES_VIOLATION [2021-10-29 05:42:46,143 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11REQUIRES_VIOLATION [2021-10-29 05:42:46,143 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12REQUIRES_VIOLATION [2021-10-29 05:42:46,143 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13REQUIRES_VIOLATION [2021-10-29 05:42:46,143 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14REQUIRES_VIOLATION [2021-10-29 05:42:46,144 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15REQUIRES_VIOLATION [2021-10-29 05:42:46,144 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK [2021-10-29 05:42:46,144 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr17REQUIRES_VIOLATION [2021-10-29 05:42:46,144 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr18REQUIRES_VIOLATION [2021-10-29 05:42:46,144 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr19ASSERT_VIOLATIONMEMORY_LEAK [2021-10-29 05:42:46,145 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr20REQUIRES_VIOLATION [2021-10-29 05:42:46,145 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr21REQUIRES_VIOLATION [2021-10-29 05:42:46,145 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_LEAK [2021-10-29 05:42:46,145 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr23REQUIRES_VIOLATION [2021-10-29 05:42:46,146 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr24REQUIRES_VIOLATION [2021-10-29 05:42:46,146 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_LEAK [2021-10-29 05:42:46,146 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr26REQUIRES_VIOLATION [2021-10-29 05:42:46,146 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr27REQUIRES_VIOLATION [2021-10-29 05:42:46,147 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_LEAK [2021-10-29 05:42:46,147 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr29REQUIRES_VIOLATION [2021-10-29 05:42:46,147 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr30REQUIRES_VIOLATION [2021-10-29 05:42:46,147 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr31ASSERT_VIOLATIONMEMORY_LEAK [2021-10-29 05:42:46,147 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_LEAK [2021-10-29 05:42:46,148 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr33REQUIRES_VIOLATION [2021-10-29 05:42:46,148 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr34REQUIRES_VIOLATION [2021-10-29 05:42:46,148 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr35ASSERT_VIOLATIONMEMORY_LEAK [2021-10-29 05:42:46,148 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr36REQUIRES_VIOLATION [2021-10-29 05:42:46,148 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr37REQUIRES_VIOLATION [2021-10-29 05:42:46,149 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_LEAK [2021-10-29 05:42:46,149 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr39REQUIRES_VIOLATION [2021-10-29 05:42:46,149 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr40REQUIRES_VIOLATION [2021-10-29 05:42:46,149 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr41ASSERT_VIOLATIONMEMORY_LEAK [2021-10-29 05:42:46,149 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr42REQUIRES_VIOLATION [2021-10-29 05:42:46,150 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr43REQUIRES_VIOLATION [2021-10-29 05:42:46,150 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr44ASSERT_VIOLATIONMEMORY_LEAK [2021-10-29 05:42:46,150 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr45ASSERT_VIOLATIONMEMORY_LEAK [2021-10-29 05:42:46,150 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr46ASSERT_VIOLATIONMEMORY_LEAK [2021-10-29 05:42:46,150 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr47ASSERT_VIOLATIONMEMORY_LEAK [2021-10-29 05:42:46,151 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr48REQUIRES_VIOLATION [2021-10-29 05:42:46,151 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr49REQUIRES_VIOLATION [2021-10-29 05:42:46,151 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr50REQUIRES_VIOLATION [2021-10-29 05:42:46,151 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr51REQUIRES_VIOLATION [2021-10-29 05:42:46,151 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr52ASSERT_VIOLATIONMEMORY_LEAK [2021-10-29 05:42:46,151 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr53REQUIRES_VIOLATION [2021-10-29 05:42:46,152 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr54REQUIRES_VIOLATION [2021-10-29 05:42:46,152 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr55REQUIRES_VIOLATION [2021-10-29 05:42:46,152 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr56REQUIRES_VIOLATION [2021-10-29 05:42:46,152 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr57ASSERT_VIOLATIONMEMORY_LEAK [2021-10-29 05:42:46,152 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr58REQUIRES_VIOLATION [2021-10-29 05:42:46,153 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr59REQUIRES_VIOLATION [2021-10-29 05:42:46,153 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr60REQUIRES_VIOLATION [2021-10-29 05:42:46,153 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr61REQUIRES_VIOLATION [2021-10-29 05:42:46,153 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr62ASSERT_VIOLATIONMEMORY_LEAK [2021-10-29 05:42:46,153 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr63REQUIRES_VIOLATION [2021-10-29 05:42:46,153 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr64REQUIRES_VIOLATION [2021-10-29 05:42:46,154 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr65REQUIRES_VIOLATION [2021-10-29 05:42:46,154 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr66REQUIRES_VIOLATION [2021-10-29 05:42:46,154 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr67REQUIRES_VIOLATION [2021-10-29 05:42:46,154 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr68REQUIRES_VIOLATION [2021-10-29 05:42:46,154 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr69REQUIRES_VIOLATION [2021-10-29 05:42:46,155 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr70REQUIRES_VIOLATION [2021-10-29 05:42:46,155 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr71REQUIRES_VIOLATION [2021-10-29 05:42:46,155 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr72REQUIRES_VIOLATION [2021-10-29 05:42:46,155 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr73REQUIRES_VIOLATION [2021-10-29 05:42:46,155 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr74REQUIRES_VIOLATION [2021-10-29 05:42:46,155 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr75REQUIRES_VIOLATION [2021-10-29 05:42:46,156 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr76REQUIRES_VIOLATION [2021-10-29 05:42:46,156 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr77REQUIRES_VIOLATION [2021-10-29 05:42:46,156 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr78REQUIRES_VIOLATION [2021-10-29 05:42:46,156 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr79REQUIRES_VIOLATION [2021-10-29 05:42:46,156 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr80REQUIRES_VIOLATION [2021-10-29 05:42:46,157 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr81REQUIRES_VIOLATION [2021-10-29 05:42:46,157 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr82REQUIRES_VIOLATION [2021-10-29 05:42:46,157 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr83REQUIRES_VIOLATION [2021-10-29 05:42:46,157 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr84REQUIRES_VIOLATION [2021-10-29 05:42:46,157 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr85REQUIRES_VIOLATION [2021-10-29 05:42:46,157 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr86REQUIRES_VIOLATION [2021-10-29 05:42:46,158 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr87REQUIRES_VIOLATION [2021-10-29 05:42:46,158 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr88REQUIRES_VIOLATION [2021-10-29 05:42:46,158 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr89ASSERT_VIOLATIONMEMORY_LEAK [2021-10-29 05:42:46,158 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr90REQUIRES_VIOLATION [2021-10-29 05:42:46,158 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr91REQUIRES_VIOLATION [2021-10-29 05:42:46,159 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr92ASSERT_VIOLATIONMEMORY_LEAK [2021-10-29 05:42:46,159 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr93REQUIRES_VIOLATION [2021-10-29 05:42:46,159 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr94REQUIRES_VIOLATION [2021-10-29 05:42:46,159 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr95ASSERT_VIOLATIONMEMORY_LEAK [2021-10-29 05:42:46,159 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr96REQUIRES_VIOLATION [2021-10-29 05:42:46,160 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr97REQUIRES_VIOLATION [2021-10-29 05:42:46,160 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr98ASSERT_VIOLATIONMEMORY_LEAK [2021-10-29 05:42:46,160 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr99REQUIRES_VIOLATION [2021-10-29 05:42:46,160 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr100REQUIRES_VIOLATION [2021-10-29 05:42:46,160 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr101ASSERT_VIOLATIONMEMORY_LEAK [2021-10-29 05:42:46,160 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr102REQUIRES_VIOLATION [2021-10-29 05:42:46,161 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr103REQUIRES_VIOLATION [2021-10-29 05:42:46,161 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr104ASSERT_VIOLATIONMEMORY_LEAK [2021-10-29 05:42:46,161 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr105ASSERT_VIOLATIONMEMORY_LEAK [2021-10-29 05:42:46,161 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr106REQUIRES_VIOLATION [2021-10-29 05:42:46,161 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr107REQUIRES_VIOLATION [2021-10-29 05:42:46,162 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr108ASSERT_VIOLATIONMEMORY_LEAK [2021-10-29 05:42:46,162 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr109REQUIRES_VIOLATION [2021-10-29 05:42:46,162 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr110REQUIRES_VIOLATION [2021-10-29 05:42:46,163 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr111ASSERT_VIOLATIONMEMORY_LEAK [2021-10-29 05:42:46,163 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr112REQUIRES_VIOLATION [2021-10-29 05:42:46,163 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr113REQUIRES_VIOLATION [2021-10-29 05:42:46,163 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr114ASSERT_VIOLATIONMEMORY_LEAK [2021-10-29 05:42:46,163 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr115REQUIRES_VIOLATION [2021-10-29 05:42:46,164 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr116REQUIRES_VIOLATION [2021-10-29 05:42:46,164 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr117ASSERT_VIOLATIONMEMORY_LEAK [2021-10-29 05:42:46,164 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr118ASSERT_VIOLATIONMEMORY_LEAK [2021-10-29 05:42:46,164 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr119ASSERT_VIOLATIONMEMORY_LEAK [2021-10-29 05:42:46,164 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr120ASSERT_VIOLATIONMEMORY_LEAK [2021-10-29 05:42:46,165 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr121REQUIRES_VIOLATION [2021-10-29 05:42:46,165 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr122REQUIRES_VIOLATION [2021-10-29 05:42:46,165 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr123REQUIRES_VIOLATION [2021-10-29 05:42:46,165 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr124REQUIRES_VIOLATION [2021-10-29 05:42:46,165 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr125ASSERT_VIOLATIONMEMORY_LEAK [2021-10-29 05:42:46,165 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr126REQUIRES_VIOLATION [2021-10-29 05:42:46,166 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr127REQUIRES_VIOLATION [2021-10-29 05:42:46,166 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr128REQUIRES_VIOLATION [2021-10-29 05:42:46,166 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr129REQUIRES_VIOLATION [2021-10-29 05:42:46,166 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr130ASSERT_VIOLATIONMEMORY_LEAK [2021-10-29 05:42:46,166 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr131REQUIRES_VIOLATION [2021-10-29 05:42:46,167 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr132REQUIRES_VIOLATION [2021-10-29 05:42:46,167 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr133REQUIRES_VIOLATION [2021-10-29 05:42:46,167 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr134REQUIRES_VIOLATION [2021-10-29 05:42:46,167 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr135ASSERT_VIOLATIONMEMORY_LEAK [2021-10-29 05:42:46,167 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr136REQUIRES_VIOLATION [2021-10-29 05:42:46,168 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr137REQUIRES_VIOLATION [2021-10-29 05:42:46,168 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr138REQUIRES_VIOLATION [2021-10-29 05:42:46,168 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr139REQUIRES_VIOLATION [2021-10-29 05:42:46,168 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr140REQUIRES_VIOLATION [2021-10-29 05:42:46,168 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr141REQUIRES_VIOLATION [2021-10-29 05:42:46,169 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr142ASSERT_VIOLATIONMEMORY_FREE [2021-10-29 05:42:46,169 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr143ASSERT_VIOLATIONMEMORY_FREE [2021-10-29 05:42:46,169 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr144ASSERT_VIOLATIONMEMORY_FREE [2021-10-29 05:42:46,169 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr145ASSERT_VIOLATIONMEMORY_LEAK [2021-10-29 05:42:46,184 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692a0731-daee-4794-9f41-601c074d16f1/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2021-10-29 05:42:46,424 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692a0731-daee-4794-9f41-601c074d16f1/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2021-10-29 05:42:46,601 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692a0731-daee-4794-9f41-601c074d16f1/bin/utaipan-SDwSMHVbGG/cvc4 --incremental --print-success --lang smt (19)] Forceful destruction successful, exit code 0 [2021-10-29 05:42:46,796 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692a0731-daee-4794-9f41-601c074d16f1/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3,20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692a0731-daee-4794-9f41-601c074d16f1/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true,19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692a0731-daee-4794-9f41-601c074d16f1/bin/utaipan-SDwSMHVbGG/cvc4 --incremental --print-success --lang smt [2021-10-29 05:42:46,798 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:42:46,802 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-29 05:42:46,815 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.10 05:42:46 BoogieIcfgContainer [2021-10-29 05:42:46,815 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-29 05:42:46,815 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-29 05:42:46,816 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-29 05:42:46,816 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-29 05:42:46,816 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 05:35:32" (3/4) ... [2021-10-29 05:42:46,820 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-29 05:42:46,820 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-29 05:42:46,821 INFO L168 Benchmark]: Toolchain (without parser) took 436638.63 ms. Allocated memory was 54.5 MB in the beginning and 400.6 MB in the end (delta: 346.0 MB). Free memory was 29.6 MB in the beginning and 240.8 MB in the end (delta: -211.2 MB). Peak memory consumption was 134.8 MB. Max. memory is 16.1 GB. [2021-10-29 05:42:46,821 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 54.5 MB. Free memory was 35.5 MB in the beginning and 35.4 MB in the end (delta: 38.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 05:42:46,821 INFO L168 Benchmark]: CACSL2BoogieTranslator took 890.39 ms. Allocated memory was 54.5 MB in the beginning and 67.1 MB in the end (delta: 12.6 MB). Free memory was 29.5 MB in the beginning and 41.9 MB in the end (delta: -12.5 MB). Peak memory consumption was 14.3 MB. Max. memory is 16.1 GB. [2021-10-29 05:42:46,822 INFO L168 Benchmark]: Boogie Procedure Inliner took 131.52 ms. Allocated memory is still 67.1 MB. Free memory was 41.9 MB in the beginning and 37.8 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-29 05:42:46,822 INFO L168 Benchmark]: Boogie Preprocessor took 122.04 ms. Allocated memory is still 67.1 MB. Free memory was 37.8 MB in the beginning and 33.9 MB in the end (delta: 3.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-29 05:42:46,823 INFO L168 Benchmark]: RCFGBuilder took 1433.35 ms. Allocated memory is still 67.1 MB. Free memory was 33.9 MB in the beginning and 26.8 MB in the end (delta: 7.1 MB). Peak memory consumption was 13.2 MB. Max. memory is 16.1 GB. [2021-10-29 05:42:46,823 INFO L168 Benchmark]: TraceAbstraction took 434050.11 ms. Allocated memory was 67.1 MB in the beginning and 400.6 MB in the end (delta: 333.4 MB). Free memory was 26.3 MB in the beginning and 240.8 MB in the end (delta: -214.5 MB). Peak memory consumption was 245.8 MB. Max. memory is 16.1 GB. [2021-10-29 05:42:46,823 INFO L168 Benchmark]: Witness Printer took 4.41 ms. Allocated memory is still 400.6 MB. Free memory is still 240.8 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 05:42:46,825 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 54.5 MB. Free memory was 35.5 MB in the beginning and 35.4 MB in the end (delta: 38.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 890.39 ms. Allocated memory was 54.5 MB in the beginning and 67.1 MB in the end (delta: 12.6 MB). Free memory was 29.5 MB in the beginning and 41.9 MB in the end (delta: -12.5 MB). Peak memory consumption was 14.3 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 131.52 ms. Allocated memory is still 67.1 MB. Free memory was 41.9 MB in the beginning and 37.8 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 122.04 ms. Allocated memory is still 67.1 MB. Free memory was 37.8 MB in the beginning and 33.9 MB in the end (delta: 3.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1433.35 ms. Allocated memory is still 67.1 MB. Free memory was 33.9 MB in the beginning and 26.8 MB in the end (delta: 7.1 MB). Peak memory consumption was 13.2 MB. Max. memory is 16.1 GB. * TraceAbstraction took 434050.11 ms. Allocated memory was 67.1 MB in the beginning and 400.6 MB in the end (delta: 333.4 MB). Free memory was 26.3 MB in the beginning and 240.8 MB in the end (delta: -214.5 MB). Peak memory consumption was 245.8 MB. Max. memory is 16.1 GB. * Witness Printer took 4.41 ms. Allocated memory is still 400.6 MB. Free memory is still 240.8 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: 878]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: unable to decide satisfiability of path constraint. Possible FailurePath: [L850] struct list_head gl_list = { &(gl_list), &(gl_list) }; [L899] struct node *node = malloc(sizeof *node); [L900] COND FALSE !(!node) [L902] node->value = value [L890] head->next [L878] next->prev = new [L879] new->next = next [L880] new->prev = prev [L881] prev->next = new [L904] (&node->nested)->next = (&node->nested) [L904] (&node->nested)->next = (&node->nested) [L911] COND TRUE __VERIFIER_nondet_int() [L899] struct node *node = malloc(sizeof *node); [L900] COND FALSE !(!node) [L902] node->value = value [L890] head->next [L878] next->prev = new - UnprovableResult [Line: 902]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 902]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 890]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 890]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 878]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 879]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 879]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 880]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 880]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 881]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 881]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 904]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 904]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 904]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 904]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 840]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 854]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 854]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 840]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 855]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 855]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 840]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 856]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 856]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 840]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 858]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 858]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 840]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 859]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 859]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 840]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 840]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 862]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 862]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 840]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 863]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 863]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 840]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 864]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 864]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 840]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 865]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 865]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 840]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 840]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 840]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 840]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 869]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 869]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 869]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 869]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 840]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 870]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 870]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 870]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 870]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 840]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 871]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 871]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 871]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 871]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 840]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 928]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 928]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 930]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 930]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 923]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 923]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 923]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 923]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 894]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 894]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 894]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 894]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 885]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 885]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 886]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 886]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 890]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 890]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 878]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 878]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 879]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 879]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 880]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 880]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 881]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 881]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 840]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 854]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 854]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 840]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 855]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 855]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 840]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 856]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 856]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 840]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 858]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 858]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 840]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 859]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 859]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 840]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 840]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 862]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 862]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 840]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 863]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 863]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 840]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 864]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 864]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 840]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 865]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 865]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 840]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 840]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 840]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 840]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 869]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 869]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 869]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 869]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 840]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 870]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 870]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 870]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 870]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 840]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 871]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 871]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 871]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 871]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 840]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 916]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 916]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 917]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 917]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 917]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 917]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 918]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 918]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 918]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 947]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 353 locations, 146 error locations. Started 1 CEGAR loops. OverallTime: 433.9s, OverallIterations: 17, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 69.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 3861 SDtfs, 17668 SDslu, 7003 SDs, 0 SdLazy, 5999 SolverSat, 224 SolverUnsat, 4 SolverUnknown, 0 SolverNotchecked, 56.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 437 GetRequests, 288 SyntacticMatches, 6 SemanticMatches, 143 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 243 ImplicationChecksByTransitivity, 56.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=353occurred in iteration=0, InterpolantAutomatonStates: 110, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 16 MinimizatonAttempts, 1638 StatesRemovedByMinimization, 14 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 1.0s SatisfiabilityAnalysisTime, 98.6s InterpolantComputationTime, 230 NumberOfCodeBlocks, 230 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 402 ConstructedInterpolants, 79 QuantifiedInterpolants, 5686 SizeOfPredicates, 140 NumberOfNonLiveVariables, 1475 ConjunctsInSsa, 169 ConjunctsInUnsatCore, 33 InterpolantComputations, 32 PerfectInterpolantSequences, 3/7 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-10-29 05:42:46,889 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692a0731-daee-4794-9f41-601c074d16f1/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...