./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/heap-manipulation/bubble_sort_linux-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version e943c265 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce73d2e0-cd63-4905-8cb0-58b23aa80592/bin/uautomizer-j4sWxH34Be/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce73d2e0-cd63-4905-8cb0-58b23aa80592/bin/uautomizer-j4sWxH34Be/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce73d2e0-cd63-4905-8cb0-58b23aa80592/bin/uautomizer-j4sWxH34Be/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce73d2e0-cd63-4905-8cb0-58b23aa80592/bin/uautomizer-j4sWxH34Be/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/heap-manipulation/bubble_sort_linux-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce73d2e0-cd63-4905-8cb0-58b23aa80592/bin/uautomizer-j4sWxH34Be/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce73d2e0-cd63-4905-8cb0-58b23aa80592/bin/uautomizer-j4sWxH34Be --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a38de44f112a10364737c35b840e673503a211a020b9f494a50e4a32c8fe31c0 ....................................................................................................................................... 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_ce73d2e0-cd63-4905-8cb0-58b23aa80592/bin/uautomizer-j4sWxH34Be/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce73d2e0-cd63-4905-8cb0-58b23aa80592/bin/uautomizer-j4sWxH34Be/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce73d2e0-cd63-4905-8cb0-58b23aa80592/bin/uautomizer-j4sWxH34Be/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce73d2e0-cd63-4905-8cb0-58b23aa80592/bin/uautomizer-j4sWxH34Be/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/heap-manipulation/bubble_sort_linux-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce73d2e0-cd63-4905-8cb0-58b23aa80592/bin/uautomizer-j4sWxH34Be/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce73d2e0-cd63-4905-8cb0-58b23aa80592/bin/uautomizer-j4sWxH34Be --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a38de44f112a10364737c35b840e673503a211a020b9f494a50e4a32c8fe31c0 ......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN --- Real Ultimate output --- This is Ultimate 0.2.1-dev-e943c26 [2021-10-21 19:40:59,204 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-21 19:40:59,206 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-21 19:40:59,239 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-21 19:40:59,240 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-21 19:40:59,241 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-21 19:40:59,243 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-21 19:40:59,245 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-21 19:40:59,247 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-21 19:40:59,251 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-21 19:40:59,252 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-21 19:40:59,254 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-21 19:40:59,255 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-21 19:40:59,259 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-21 19:40:59,261 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-21 19:40:59,264 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-21 19:40:59,267 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-21 19:40:59,274 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-21 19:40:59,276 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-21 19:40:59,282 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-21 19:40:59,289 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-21 19:40:59,290 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-21 19:40:59,292 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-21 19:40:59,293 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-21 19:40:59,298 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-21 19:40:59,303 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-21 19:40:59,304 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-21 19:40:59,305 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-21 19:40:59,307 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-21 19:40:59,308 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-21 19:40:59,309 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-21 19:40:59,310 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-21 19:40:59,312 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-21 19:40:59,313 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-21 19:40:59,315 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-21 19:40:59,316 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-21 19:40:59,317 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-21 19:40:59,317 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-21 19:40:59,317 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-21 19:40:59,318 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-21 19:40:59,319 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-21 19:40:59,320 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce73d2e0-cd63-4905-8cb0-58b23aa80592/bin/uautomizer-j4sWxH34Be/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2021-10-21 19:40:59,369 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-21 19:40:59,369 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-21 19:40:59,370 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-21 19:40:59,370 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-21 19:40:59,377 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-21 19:40:59,378 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-21 19:40:59,378 INFO L138 SettingsManager]: * Use SBE=true [2021-10-21 19:40:59,378 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-21 19:40:59,378 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-21 19:40:59,379 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-21 19:40:59,380 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-21 19:40:59,380 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-21 19:40:59,380 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-21 19:40:59,381 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-10-21 19:40:59,381 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-10-21 19:40:59,381 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-10-21 19:40:59,381 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-21 19:40:59,382 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-21 19:40:59,382 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-21 19:40:59,382 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-21 19:40:59,382 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-21 19:40:59,383 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-21 19:40:59,383 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-21 19:40:59,383 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-21 19:40:59,383 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-21 19:40:59,384 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-21 19:40:59,384 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-21 19:40:59,384 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-21 19:40:59,384 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-21 19:40:59,386 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce73d2e0-cd63-4905-8cb0-58b23aa80592/bin/uautomizer-j4sWxH34Be/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce73d2e0-cd63-4905-8cb0-58b23aa80592/bin/uautomizer-j4sWxH34Be Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a38de44f112a10364737c35b840e673503a211a020b9f494a50e4a32c8fe31c0 [2021-10-21 19:40:59,673 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-21 19:40:59,696 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-21 19:40:59,699 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-21 19:40:59,701 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-21 19:40:59,702 INFO L275 PluginConnector]: CDTParser initialized [2021-10-21 19:40:59,703 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce73d2e0-cd63-4905-8cb0-58b23aa80592/bin/uautomizer-j4sWxH34Be/../../sv-benchmarks/c/heap-manipulation/bubble_sort_linux-1.i [2021-10-21 19:40:59,777 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce73d2e0-cd63-4905-8cb0-58b23aa80592/bin/uautomizer-j4sWxH34Be/data/3fad217d9/06b9e9abab3e4bdfaab661c098a33809/FLAG1f50f5b35 [2021-10-21 19:41:00,379 INFO L306 CDTParser]: Found 1 translation units. [2021-10-21 19:41:00,382 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce73d2e0-cd63-4905-8cb0-58b23aa80592/sv-benchmarks/c/heap-manipulation/bubble_sort_linux-1.i [2021-10-21 19:41:00,407 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce73d2e0-cd63-4905-8cb0-58b23aa80592/bin/uautomizer-j4sWxH34Be/data/3fad217d9/06b9e9abab3e4bdfaab661c098a33809/FLAG1f50f5b35 [2021-10-21 19:41:00,625 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce73d2e0-cd63-4905-8cb0-58b23aa80592/bin/uautomizer-j4sWxH34Be/data/3fad217d9/06b9e9abab3e4bdfaab661c098a33809 [2021-10-21 19:41:00,634 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-21 19:41:00,636 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-10-21 19:41:00,639 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-21 19:41:00,640 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-21 19:41:00,643 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-21 19:41:00,645 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 07:41:00" (1/1) ... [2021-10-21 19:41:00,647 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@b7c58bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:41:00, skipping insertion in model container [2021-10-21 19:41:00,647 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 07:41:00" (1/1) ... [2021-10-21 19:41:00,656 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-21 19:41:00,716 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-21 19:41:01,167 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_ce73d2e0-cd63-4905-8cb0-58b23aa80592/sv-benchmarks/c/heap-manipulation/bubble_sort_linux-1.i[33822,33835] [2021-10-21 19:41:01,202 WARN L549 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-10-21 19:41:01,204 WARN L549 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-10-21 19:41:01,206 WARN L549 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-10-21 19:41:01,231 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 19:41:01,241 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) [2021-10-21 19:41:01,242 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@dad8da6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:41:01, skipping insertion in model container [2021-10-21 19:41:01,242 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-21 19:41:01,243 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.preprocessor [2021-10-21 19:41:01,245 INFO L168 Benchmark]: Toolchain (without parser) took 607.63 ms. Allocated memory is still 102.8 MB. Free memory was 68.8 MB in the beginning and 73.4 MB in the end (delta: -4.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-21 19:41:01,246 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 102.8 MB. Free memory is still 59.4 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 19:41:01,247 INFO L168 Benchmark]: CACSL2BoogieTranslator took 603.11 ms. Allocated memory is still 102.8 MB. Free memory was 68.5 MB in the beginning and 73.7 MB in the end (delta: -5.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-21 19:41:01,248 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 102.8 MB. Free memory is still 59.4 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 603.11 ms. Allocated memory is still 102.8 MB. Free memory was 68.5 MB in the beginning and 73.7 MB in the end (delta: -5.2 MB). Peak memory consumption was 10.5 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-e943c26 [2021-10-21 19:41:03,741 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-21 19:41:03,743 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-21 19:41:03,778 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-21 19:41:03,779 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-21 19:41:03,780 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-21 19:41:03,782 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-21 19:41:03,785 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-21 19:41:03,788 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-21 19:41:03,789 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-21 19:41:03,790 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-21 19:41:03,792 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-21 19:41:03,792 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-21 19:41:03,794 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-21 19:41:03,796 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-21 19:41:03,797 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-21 19:41:03,799 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-21 19:41:03,800 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-21 19:41:03,802 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-21 19:41:03,805 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-21 19:41:03,807 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-21 19:41:03,809 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-21 19:41:03,810 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-21 19:41:03,811 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-21 19:41:03,816 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-21 19:41:03,816 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-21 19:41:03,817 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-21 19:41:03,818 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-21 19:41:03,819 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-21 19:41:03,820 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-21 19:41:03,821 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-21 19:41:03,822 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-21 19:41:03,823 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-21 19:41:03,824 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-21 19:41:03,825 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-21 19:41:03,825 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-21 19:41:03,826 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-21 19:41:03,827 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-21 19:41:03,827 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-21 19:41:03,829 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-21 19:41:03,830 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-21 19:41:03,833 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce73d2e0-cd63-4905-8cb0-58b23aa80592/bin/uautomizer-j4sWxH34Be/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2021-10-21 19:41:03,882 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-21 19:41:03,883 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-21 19:41:03,883 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-21 19:41:03,883 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-21 19:41:03,891 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-21 19:41:03,892 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-21 19:41:03,892 INFO L138 SettingsManager]: * Use SBE=true [2021-10-21 19:41:03,892 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-21 19:41:03,892 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-21 19:41:03,893 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-21 19:41:03,894 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-21 19:41:03,894 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-21 19:41:03,894 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-21 19:41:03,894 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-10-21 19:41:03,895 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-10-21 19:41:03,895 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-10-21 19:41:03,895 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-21 19:41:03,895 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-21 19:41:03,895 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-21 19:41:03,896 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-21 19:41:03,896 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-21 19:41:03,896 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-21 19:41:03,896 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-21 19:41:03,897 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-21 19:41:03,897 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-21 19:41:03,897 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-21 19:41:03,898 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-21 19:41:03,898 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-21 19:41:03,898 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-10-21 19:41:03,898 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-21 19:41:03,899 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-21 19:41:03,899 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-21 19:41:03,899 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_ce73d2e0-cd63-4905-8cb0-58b23aa80592/bin/uautomizer-j4sWxH34Be/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce73d2e0-cd63-4905-8cb0-58b23aa80592/bin/uautomizer-j4sWxH34Be Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a38de44f112a10364737c35b840e673503a211a020b9f494a50e4a32c8fe31c0 [2021-10-21 19:41:04,337 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-21 19:41:04,361 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-21 19:41:04,364 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-21 19:41:04,365 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-21 19:41:04,366 INFO L275 PluginConnector]: CDTParser initialized [2021-10-21 19:41:04,367 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce73d2e0-cd63-4905-8cb0-58b23aa80592/bin/uautomizer-j4sWxH34Be/../../sv-benchmarks/c/heap-manipulation/bubble_sort_linux-1.i [2021-10-21 19:41:04,443 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce73d2e0-cd63-4905-8cb0-58b23aa80592/bin/uautomizer-j4sWxH34Be/data/06be49dc9/afb993e4d59847e4b19d2e603c98539c/FLAG0b6171d5f [2021-10-21 19:41:05,162 INFO L306 CDTParser]: Found 1 translation units. [2021-10-21 19:41:05,165 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce73d2e0-cd63-4905-8cb0-58b23aa80592/sv-benchmarks/c/heap-manipulation/bubble_sort_linux-1.i [2021-10-21 19:41:05,190 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce73d2e0-cd63-4905-8cb0-58b23aa80592/bin/uautomizer-j4sWxH34Be/data/06be49dc9/afb993e4d59847e4b19d2e603c98539c/FLAG0b6171d5f [2021-10-21 19:41:05,306 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce73d2e0-cd63-4905-8cb0-58b23aa80592/bin/uautomizer-j4sWxH34Be/data/06be49dc9/afb993e4d59847e4b19d2e603c98539c [2021-10-21 19:41:05,311 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-21 19:41:05,315 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-10-21 19:41:05,317 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-21 19:41:05,318 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-21 19:41:05,321 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-21 19:41:05,322 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 07:41:05" (1/1) ... [2021-10-21 19:41:05,325 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@77878124 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:41:05, skipping insertion in model container [2021-10-21 19:41:05,325 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 07:41:05" (1/1) ... [2021-10-21 19:41:05,334 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-21 19:41:05,402 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-21 19:41:05,901 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_ce73d2e0-cd63-4905-8cb0-58b23aa80592/sv-benchmarks/c/heap-manipulation/bubble_sort_linux-1.i[33822,33835] [2021-10-21 19:41:05,951 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 19:41:05,981 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-10-21 19:41:05,994 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-21 19:41:06,022 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_ce73d2e0-cd63-4905-8cb0-58b23aa80592/sv-benchmarks/c/heap-manipulation/bubble_sort_linux-1.i[33822,33835] [2021-10-21 19:41:06,042 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 19:41:06,048 INFO L203 MainTranslator]: Completed pre-run [2021-10-21 19:41:06,084 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_ce73d2e0-cd63-4905-8cb0-58b23aa80592/sv-benchmarks/c/heap-manipulation/bubble_sort_linux-1.i[33822,33835] [2021-10-21 19:41:06,102 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 19:41:06,185 INFO L208 MainTranslator]: Completed translation [2021-10-21 19:41:06,186 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:41:06 WrapperNode [2021-10-21 19:41:06,186 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-21 19:41:06,187 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-21 19:41:06,187 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-21 19:41:06,187 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-21 19:41:06,200 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:41:06" (1/1) ... [2021-10-21 19:41:06,200 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:41:06" (1/1) ... [2021-10-21 19:41:06,226 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:41:06" (1/1) ... [2021-10-21 19:41:06,226 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:41:06" (1/1) ... [2021-10-21 19:41:06,263 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:41:06" (1/1) ... [2021-10-21 19:41:06,274 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:41:06" (1/1) ... [2021-10-21 19:41:06,283 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:41:06" (1/1) ... [2021-10-21 19:41:06,297 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-21 19:41:06,298 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-21 19:41:06,299 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-21 19:41:06,299 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-21 19:41:06,300 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:41:06" (1/1) ... [2021-10-21 19:41:06,307 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-21 19:41:06,326 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce73d2e0-cd63-4905-8cb0-58b23aa80592/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:41:06,357 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce73d2e0-cd63-4905-8cb0-58b23aa80592/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-21 19:41:06,372 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce73d2e0-cd63-4905-8cb0-58b23aa80592/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-21 19:41:06,419 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-10-21 19:41:06,419 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-21 19:41:06,422 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.setCurrentRoundingMode [2021-10-21 19:41:06,422 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-10-21 19:41:06,422 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2021-10-21 19:41:06,422 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2021-10-21 19:41:06,423 INFO L138 BoogieDeclarations]: Found implementation of procedure fail [2021-10-21 19:41:06,423 INFO L138 BoogieDeclarations]: Found implementation of procedure inspect [2021-10-21 19:41:06,423 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2021-10-21 19:41:06,423 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_del [2021-10-21 19:41:06,423 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2021-10-21 19:41:06,424 INFO L138 BoogieDeclarations]: Found implementation of procedure list_move [2021-10-21 19:41:06,424 INFO L138 BoogieDeclarations]: Found implementation of procedure gl_insert [2021-10-21 19:41:06,425 INFO L138 BoogieDeclarations]: Found implementation of procedure gl_read [2021-10-21 19:41:06,425 INFO L138 BoogieDeclarations]: Found implementation of procedure gl_destroy [2021-10-21 19:41:06,425 INFO L138 BoogieDeclarations]: Found implementation of procedure val_from_node [2021-10-21 19:41:06,425 INFO L138 BoogieDeclarations]: Found implementation of procedure gl_sort_pass [2021-10-21 19:41:06,425 INFO L138 BoogieDeclarations]: Found implementation of procedure gl_sort [2021-10-21 19:41:06,426 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-10-21 19:41:06,426 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-10-21 19:41:06,426 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-10-21 19:41:06,426 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2021-10-21 19:41:06,426 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2021-10-21 19:41:06,427 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-10-21 19:41:06,427 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-21 19:41:06,427 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2021-10-21 19:41:06,427 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2021-10-21 19:41:06,427 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2021-10-21 19:41:06,428 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2021-10-21 19:41:06,428 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2021-10-21 19:41:06,428 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2021-10-21 19:41:06,428 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2021-10-21 19:41:06,428 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2021-10-21 19:41:06,429 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2021-10-21 19:41:06,429 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2021-10-21 19:41:06,429 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2021-10-21 19:41:06,429 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2021-10-21 19:41:06,429 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2021-10-21 19:41:06,430 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2021-10-21 19:41:06,430 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2021-10-21 19:41:06,431 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2021-10-21 19:41:06,431 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2021-10-21 19:41:06,432 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2021-10-21 19:41:06,432 INFO L130 BoogieDeclarations]: Found specification of procedure select [2021-10-21 19:41:06,432 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2021-10-21 19:41:06,433 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2021-10-21 19:41:06,433 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2021-10-21 19:41:06,433 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2021-10-21 19:41:06,433 INFO L130 BoogieDeclarations]: Found specification of procedure random [2021-10-21 19:41:06,433 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2021-10-21 19:41:06,434 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2021-10-21 19:41:06,434 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2021-10-21 19:41:06,434 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2021-10-21 19:41:06,435 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2021-10-21 19:41:06,435 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2021-10-21 19:41:06,436 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2021-10-21 19:41:06,436 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2021-10-21 19:41:06,436 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2021-10-21 19:41:06,436 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2021-10-21 19:41:06,438 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2021-10-21 19:41:06,438 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2021-10-21 19:41:06,439 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2021-10-21 19:41:06,439 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2021-10-21 19:41:06,439 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2021-10-21 19:41:06,440 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2021-10-21 19:41:06,440 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2021-10-21 19:41:06,440 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2021-10-21 19:41:06,440 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2021-10-21 19:41:06,440 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2021-10-21 19:41:06,441 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2021-10-21 19:41:06,441 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2021-10-21 19:41:06,441 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2021-10-21 19:41:06,441 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2021-10-21 19:41:06,441 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2021-10-21 19:41:06,442 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2021-10-21 19:41:06,442 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2021-10-21 19:41:06,443 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2021-10-21 19:41:06,443 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2021-10-21 19:41:06,443 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2021-10-21 19:41:06,443 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2021-10-21 19:41:06,444 INFO L130 BoogieDeclarations]: Found specification of procedure free [2021-10-21 19:41:06,444 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2021-10-21 19:41:06,444 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2021-10-21 19:41:06,444 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2021-10-21 19:41:06,445 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2021-10-21 19:41:06,445 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2021-10-21 19:41:06,445 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2021-10-21 19:41:06,445 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2021-10-21 19:41:06,445 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2021-10-21 19:41:06,445 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2021-10-21 19:41:06,446 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2021-10-21 19:41:06,446 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2021-10-21 19:41:06,446 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2021-10-21 19:41:06,446 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2021-10-21 19:41:06,446 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2021-10-21 19:41:06,447 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2021-10-21 19:41:06,447 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2021-10-21 19:41:06,447 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2021-10-21 19:41:06,448 INFO L130 BoogieDeclarations]: Found specification of procedure system [2021-10-21 19:41:06,448 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2021-10-21 19:41:06,448 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2021-10-21 19:41:06,448 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2021-10-21 19:41:06,448 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2021-10-21 19:41:06,449 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2021-10-21 19:41:06,449 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2021-10-21 19:41:06,449 INFO L130 BoogieDeclarations]: Found specification of procedure div [2021-10-21 19:41:06,449 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2021-10-21 19:41:06,449 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2021-10-21 19:41:06,450 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2021-10-21 19:41:06,450 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2021-10-21 19:41:06,450 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2021-10-21 19:41:06,450 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2021-10-21 19:41:06,450 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2021-10-21 19:41:06,451 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2021-10-21 19:41:06,451 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2021-10-21 19:41:06,451 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2021-10-21 19:41:06,451 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2021-10-21 19:41:06,452 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2021-10-21 19:41:06,452 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2021-10-21 19:41:06,453 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2021-10-21 19:41:06,453 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2021-10-21 19:41:06,456 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2021-10-21 19:41:06,456 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2021-10-21 19:41:06,457 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2021-10-21 19:41:06,458 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2021-10-21 19:41:06,459 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2021-10-21 19:41:06,459 INFO L130 BoogieDeclarations]: Found specification of procedure __underflow [2021-10-21 19:41:06,460 INFO L130 BoogieDeclarations]: Found specification of procedure __uflow [2021-10-21 19:41:06,460 INFO L130 BoogieDeclarations]: Found specification of procedure __overflow [2021-10-21 19:41:06,461 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_getc [2021-10-21 19:41:06,467 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_putc [2021-10-21 19:41:06,467 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_feof [2021-10-21 19:41:06,467 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_ferror [2021-10-21 19:41:06,467 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_peekc_locked [2021-10-21 19:41:06,468 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_flockfile [2021-10-21 19:41:06,468 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_funlockfile [2021-10-21 19:41:06,468 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_ftrylockfile [2021-10-21 19:41:06,468 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_vfscanf [2021-10-21 19:41:06,468 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_vfprintf [2021-10-21 19:41:06,468 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_padn [2021-10-21 19:41:06,469 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_sgetn [2021-10-21 19:41:06,469 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_seekoff [2021-10-21 19:41:06,469 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_seekpos [2021-10-21 19:41:06,469 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_free_backup_area [2021-10-21 19:41:06,469 INFO L130 BoogieDeclarations]: Found specification of procedure remove [2021-10-21 19:41:06,469 INFO L130 BoogieDeclarations]: Found specification of procedure rename [2021-10-21 19:41:06,470 INFO L130 BoogieDeclarations]: Found specification of procedure renameat [2021-10-21 19:41:06,470 INFO L130 BoogieDeclarations]: Found specification of procedure tmpfile [2021-10-21 19:41:06,470 INFO L130 BoogieDeclarations]: Found specification of procedure tmpnam [2021-10-21 19:41:06,470 INFO L130 BoogieDeclarations]: Found specification of procedure tmpnam_r [2021-10-21 19:41:06,470 INFO L130 BoogieDeclarations]: Found specification of procedure tempnam [2021-10-21 19:41:06,470 INFO L130 BoogieDeclarations]: Found specification of procedure fclose [2021-10-21 19:41:06,471 INFO L130 BoogieDeclarations]: Found specification of procedure fflush [2021-10-21 19:41:06,471 INFO L130 BoogieDeclarations]: Found specification of procedure fflush_unlocked [2021-10-21 19:41:06,471 INFO L130 BoogieDeclarations]: Found specification of procedure fopen [2021-10-21 19:41:06,471 INFO L130 BoogieDeclarations]: Found specification of procedure freopen [2021-10-21 19:41:06,471 INFO L130 BoogieDeclarations]: Found specification of procedure fdopen [2021-10-21 19:41:06,472 INFO L130 BoogieDeclarations]: Found specification of procedure fmemopen [2021-10-21 19:41:06,472 INFO L130 BoogieDeclarations]: Found specification of procedure open_memstream [2021-10-21 19:41:06,472 INFO L130 BoogieDeclarations]: Found specification of procedure setbuf [2021-10-21 19:41:06,472 INFO L130 BoogieDeclarations]: Found specification of procedure setvbuf [2021-10-21 19:41:06,472 INFO L130 BoogieDeclarations]: Found specification of procedure setbuffer [2021-10-21 19:41:06,472 INFO L130 BoogieDeclarations]: Found specification of procedure setlinebuf [2021-10-21 19:41:06,473 INFO L130 BoogieDeclarations]: Found specification of procedure fprintf [2021-10-21 19:41:06,473 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2021-10-21 19:41:06,473 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2021-10-21 19:41:06,473 INFO L130 BoogieDeclarations]: Found specification of procedure vfprintf [2021-10-21 19:41:06,473 INFO L130 BoogieDeclarations]: Found specification of procedure vprintf [2021-10-21 19:41:06,473 INFO L130 BoogieDeclarations]: Found specification of procedure vsprintf [2021-10-21 19:41:06,474 INFO L130 BoogieDeclarations]: Found specification of procedure snprintf [2021-10-21 19:41:06,474 INFO L130 BoogieDeclarations]: Found specification of procedure vsnprintf [2021-10-21 19:41:06,474 INFO L130 BoogieDeclarations]: Found specification of procedure vdprintf [2021-10-21 19:41:06,474 INFO L130 BoogieDeclarations]: Found specification of procedure dprintf [2021-10-21 19:41:06,474 INFO L130 BoogieDeclarations]: Found specification of procedure fscanf [2021-10-21 19:41:06,474 INFO L130 BoogieDeclarations]: Found specification of procedure scanf [2021-10-21 19:41:06,475 INFO L130 BoogieDeclarations]: Found specification of procedure sscanf [2021-10-21 19:41:06,475 INFO L130 BoogieDeclarations]: Found specification of procedure vfscanf [2021-10-21 19:41:06,475 INFO L130 BoogieDeclarations]: Found specification of procedure vscanf [2021-10-21 19:41:06,475 INFO L130 BoogieDeclarations]: Found specification of procedure vsscanf [2021-10-21 19:41:06,475 INFO L130 BoogieDeclarations]: Found specification of procedure fgetc [2021-10-21 19:41:06,476 INFO L130 BoogieDeclarations]: Found specification of procedure getc [2021-10-21 19:41:06,476 INFO L130 BoogieDeclarations]: Found specification of procedure getchar [2021-10-21 19:41:06,476 INFO L130 BoogieDeclarations]: Found specification of procedure getc_unlocked [2021-10-21 19:41:06,476 INFO L130 BoogieDeclarations]: Found specification of procedure getchar_unlocked [2021-10-21 19:41:06,476 INFO L130 BoogieDeclarations]: Found specification of procedure fgetc_unlocked [2021-10-21 19:41:06,476 INFO L130 BoogieDeclarations]: Found specification of procedure fputc [2021-10-21 19:41:06,477 INFO L130 BoogieDeclarations]: Found specification of procedure putc [2021-10-21 19:41:06,477 INFO L130 BoogieDeclarations]: Found specification of procedure putchar [2021-10-21 19:41:06,477 INFO L130 BoogieDeclarations]: Found specification of procedure fputc_unlocked [2021-10-21 19:41:06,477 INFO L130 BoogieDeclarations]: Found specification of procedure putc_unlocked [2021-10-21 19:41:06,477 INFO L130 BoogieDeclarations]: Found specification of procedure putchar_unlocked [2021-10-21 19:41:06,477 INFO L130 BoogieDeclarations]: Found specification of procedure getw [2021-10-21 19:41:06,478 INFO L130 BoogieDeclarations]: Found specification of procedure putw [2021-10-21 19:41:06,478 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2021-10-21 19:41:06,478 INFO L130 BoogieDeclarations]: Found specification of procedure gets [2021-10-21 19:41:06,478 INFO L130 BoogieDeclarations]: Found specification of procedure __getdelim [2021-10-21 19:41:06,478 INFO L130 BoogieDeclarations]: Found specification of procedure getdelim [2021-10-21 19:41:06,479 INFO L130 BoogieDeclarations]: Found specification of procedure getline [2021-10-21 19:41:06,479 INFO L130 BoogieDeclarations]: Found specification of procedure fputs [2021-10-21 19:41:06,479 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2021-10-21 19:41:06,479 INFO L130 BoogieDeclarations]: Found specification of procedure ungetc [2021-10-21 19:41:06,479 INFO L130 BoogieDeclarations]: Found specification of procedure fread [2021-10-21 19:41:06,479 INFO L130 BoogieDeclarations]: Found specification of procedure fwrite [2021-10-21 19:41:06,480 INFO L130 BoogieDeclarations]: Found specification of procedure fread_unlocked [2021-10-21 19:41:06,480 INFO L130 BoogieDeclarations]: Found specification of procedure fwrite_unlocked [2021-10-21 19:41:06,480 INFO L130 BoogieDeclarations]: Found specification of procedure fseek [2021-10-21 19:41:06,480 INFO L130 BoogieDeclarations]: Found specification of procedure ftell [2021-10-21 19:41:06,480 INFO L130 BoogieDeclarations]: Found specification of procedure rewind [2021-10-21 19:41:06,480 INFO L130 BoogieDeclarations]: Found specification of procedure fseeko [2021-10-21 19:41:06,481 INFO L130 BoogieDeclarations]: Found specification of procedure ftello [2021-10-21 19:41:06,481 INFO L130 BoogieDeclarations]: Found specification of procedure fgetpos [2021-10-21 19:41:06,481 INFO L130 BoogieDeclarations]: Found specification of procedure fsetpos [2021-10-21 19:41:06,481 INFO L130 BoogieDeclarations]: Found specification of procedure clearerr [2021-10-21 19:41:06,481 INFO L130 BoogieDeclarations]: Found specification of procedure feof [2021-10-21 19:41:06,482 INFO L130 BoogieDeclarations]: Found specification of procedure ferror [2021-10-21 19:41:06,482 INFO L130 BoogieDeclarations]: Found specification of procedure clearerr_unlocked [2021-10-21 19:41:06,482 INFO L130 BoogieDeclarations]: Found specification of procedure feof_unlocked [2021-10-21 19:41:06,482 INFO L130 BoogieDeclarations]: Found specification of procedure ferror_unlocked [2021-10-21 19:41:06,482 INFO L130 BoogieDeclarations]: Found specification of procedure perror [2021-10-21 19:41:06,482 INFO L130 BoogieDeclarations]: Found specification of procedure fileno [2021-10-21 19:41:06,483 INFO L130 BoogieDeclarations]: Found specification of procedure fileno_unlocked [2021-10-21 19:41:06,483 INFO L130 BoogieDeclarations]: Found specification of procedure popen [2021-10-21 19:41:06,483 INFO L130 BoogieDeclarations]: Found specification of procedure pclose [2021-10-21 19:41:06,483 INFO L130 BoogieDeclarations]: Found specification of procedure ctermid [2021-10-21 19:41:06,483 INFO L130 BoogieDeclarations]: Found specification of procedure flockfile [2021-10-21 19:41:06,483 INFO L130 BoogieDeclarations]: Found specification of procedure ftrylockfile [2021-10-21 19:41:06,484 INFO L130 BoogieDeclarations]: Found specification of procedure funlockfile [2021-10-21 19:41:06,484 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-10-21 19:41:06,484 INFO L130 BoogieDeclarations]: Found specification of procedure fail [2021-10-21 19:41:06,484 INFO L130 BoogieDeclarations]: Found specification of procedure inspect [2021-10-21 19:41:06,484 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-10-21 19:41:06,484 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2021-10-21 19:41:06,485 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-10-21 19:41:06,485 INFO L130 BoogieDeclarations]: Found specification of procedure __list_del [2021-10-21 19:41:06,485 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2021-10-21 19:41:06,485 INFO L130 BoogieDeclarations]: Found specification of procedure list_move [2021-10-21 19:41:06,485 INFO L130 BoogieDeclarations]: Found specification of procedure gl_insert [2021-10-21 19:41:06,485 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-21 19:41:06,486 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-10-21 19:41:06,486 INFO L130 BoogieDeclarations]: Found specification of procedure gl_read [2021-10-21 19:41:06,486 INFO L130 BoogieDeclarations]: Found specification of procedure gl_destroy [2021-10-21 19:41:06,486 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-21 19:41:06,486 INFO L130 BoogieDeclarations]: Found specification of procedure val_from_node [2021-10-21 19:41:06,486 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-10-21 19:41:06,487 INFO L130 BoogieDeclarations]: Found specification of procedure gl_sort_pass [2021-10-21 19:41:06,487 INFO L130 BoogieDeclarations]: Found specification of procedure gl_sort [2021-10-21 19:41:06,487 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-10-21 19:41:06,488 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-10-21 19:41:06,492 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-21 19:41:06,492 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-10-21 19:41:06,492 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-21 19:41:06,493 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.setCurrentRoundingMode [2021-10-21 19:41:06,493 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-10-21 19:41:06,493 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-10-21 19:41:07,847 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-21 19:41:07,848 INFO L299 CfgBuilder]: Removed 41 assume(true) statements. [2021-10-21 19:41:07,850 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:41:07 BoogieIcfgContainer [2021-10-21 19:41:07,851 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-21 19:41:07,852 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-21 19:41:07,853 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-21 19:41:07,855 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-21 19:41:07,856 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.10 07:41:05" (1/3) ... [2021-10-21 19:41:07,857 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b7e7cf9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 07:41:07, skipping insertion in model container [2021-10-21 19:41:07,857 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:41:06" (2/3) ... [2021-10-21 19:41:07,858 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b7e7cf9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 07:41:07, skipping insertion in model container [2021-10-21 19:41:07,858 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:41:07" (3/3) ... [2021-10-21 19:41:07,859 INFO L111 eAbstractionObserver]: Analyzing ICFG bubble_sort_linux-1.i [2021-10-21 19:41:07,864 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-21 19:41:07,864 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 71 error locations. [2021-10-21 19:41:07,931 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-21 19:41:07,939 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 [2021-10-21 19:41:07,939 INFO L340 AbstractCegarLoop]: Starting to check reachability of 71 error locations. [2021-10-21 19:41:07,985 INFO L276 IsEmpty]: Start isEmpty. Operand has 240 states, 123 states have (on average 2.089430894308943) internal successors, (257), 213 states have internal predecessors, (257), 33 states have call successors, (33), 14 states have call predecessors, (33), 14 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) [2021-10-21 19:41:08,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-21 19:41:08,002 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:41:08,003 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:41:08,003 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting gl_insertErr0REQUIRES_VIOLATION === [__list_delErr0REQUIRES_VIOLATION, __list_delErr1REQUIRES_VIOLATION, __list_delErr2REQUIRES_VIOLATION, __list_delErr3REQUIRES_VIOLATION (and 67 more)] === [2021-10-21 19:41:08,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:41:08,019 INFO L82 PathProgramCache]: Analyzing trace with hash 963234318, now seen corresponding path program 1 times [2021-10-21 19:41:08,031 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-21 19:41:08,032 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1179066920] [2021-10-21 19:41:08,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:41:08,033 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-21 19:41:08,033 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce73d2e0-cd63-4905-8cb0-58b23aa80592/bin/uautomizer-j4sWxH34Be/mathsat [2021-10-21 19:41:08,039 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce73d2e0-cd63-4905-8cb0-58b23aa80592/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-21 19:41:08,077 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce73d2e0-cd63-4905-8cb0-58b23aa80592/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-21 19:41:08,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:41:08,273 INFO L263 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 1 conjunts are in the unsatisfiable core [2021-10-21 19:41:08,282 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:41:08,363 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:41:08,363 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-21 19:41:08,416 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:41:08,416 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-21 19:41:08,417 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1179066920] [2021-10-21 19:41:08,417 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1179066920] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-21 19:41:08,417 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:41:08,418 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-10-21 19:41:08,419 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1253699334] [2021-10-21 19:41:08,423 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-21 19:41:08,424 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-21 19:41:08,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-21 19:41:08,436 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-21 19:41:08,439 INFO L87 Difference]: Start difference. First operand has 240 states, 123 states have (on average 2.089430894308943) internal successors, (257), 213 states have internal predecessors, (257), 33 states have call successors, (33), 14 states have call predecessors, (33), 14 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) Second operand has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-10-21 19:41:08,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:41:08,470 INFO L93 Difference]: Finished difference Result 236 states and 258 transitions. [2021-10-21 19:41:08,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-21 19:41:08,471 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 10 [2021-10-21 19:41:08,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:41:08,481 INFO L225 Difference]: With dead ends: 236 [2021-10-21 19:41:08,481 INFO L226 Difference]: Without dead ends: 233 [2021-10-21 19:41:08,483 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-21 19:41:08,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 233 states. [2021-10-21 19:41:08,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 233 to 233. [2021-10-21 19:41:08,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 233 states, 119 states have (on average 1.7563025210084033) internal successors, (209), 206 states have internal predecessors, (209), 31 states have call successors, (31), 14 states have call predecessors, (31), 12 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2021-10-21 19:41:08,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 233 states to 233 states and 255 transitions. [2021-10-21 19:41:08,534 INFO L78 Accepts]: Start accepts. Automaton has 233 states and 255 transitions. Word has length 10 [2021-10-21 19:41:08,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:41:08,534 INFO L470 AbstractCegarLoop]: Abstraction has 233 states and 255 transitions. [2021-10-21 19:41:08,534 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-10-21 19:41:08,535 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states and 255 transitions. [2021-10-21 19:41:08,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-21 19:41:08,535 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:41:08,535 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:41:08,551 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce73d2e0-cd63-4905-8cb0-58b23aa80592/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-21 19:41:08,747 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce73d2e0-cd63-4905-8cb0-58b23aa80592/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 [2021-10-21 19:41:08,748 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting gl_insertErr0REQUIRES_VIOLATION === [__list_delErr0REQUIRES_VIOLATION, __list_delErr1REQUIRES_VIOLATION, __list_delErr2REQUIRES_VIOLATION, __list_delErr3REQUIRES_VIOLATION (and 67 more)] === [2021-10-21 19:41:08,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:41:08,752 INFO L82 PathProgramCache]: Analyzing trace with hash 963234380, now seen corresponding path program 1 times [2021-10-21 19:41:08,756 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-21 19:41:08,756 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1769954587] [2021-10-21 19:41:08,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:41:08,756 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-21 19:41:08,756 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce73d2e0-cd63-4905-8cb0-58b23aa80592/bin/uautomizer-j4sWxH34Be/mathsat [2021-10-21 19:41:08,758 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce73d2e0-cd63-4905-8cb0-58b23aa80592/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-21 19:41:08,769 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce73d2e0-cd63-4905-8cb0-58b23aa80592/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-21 19:41:08,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:41:08,976 INFO L263 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-21 19:41:08,978 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:41:09,040 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 [2021-10-21 19:41:09,055 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:41:09,056 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-21 19:41:09,090 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:41:09,090 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-21 19:41:09,090 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1769954587] [2021-10-21 19:41:09,090 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1769954587] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-21 19:41:09,091 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:41:09,091 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-10-21 19:41:09,091 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [135202420] [2021-10-21 19:41:09,092 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-21 19:41:09,092 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-21 19:41:09,093 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 19:41:09,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:41:09,094 INFO L87 Difference]: Start difference. First operand 233 states and 255 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-10-21 19:41:09,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:41:09,318 INFO L93 Difference]: Finished difference Result 230 states and 252 transitions. [2021-10-21 19:41:09,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 19:41:09,319 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 10 [2021-10-21 19:41:09,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:41:09,321 INFO L225 Difference]: With dead ends: 230 [2021-10-21 19:41:09,321 INFO L226 Difference]: Without dead ends: 230 [2021-10-21 19:41:09,322 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.6ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:41:09,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 230 states. [2021-10-21 19:41:09,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 230 to 230. [2021-10-21 19:41:09,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 230 states, 119 states have (on average 1.73109243697479) internal successors, (206), 203 states have internal predecessors, (206), 31 states have call successors, (31), 14 states have call predecessors, (31), 12 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2021-10-21 19:41:09,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 252 transitions. [2021-10-21 19:41:09,338 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 252 transitions. Word has length 10 [2021-10-21 19:41:09,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:41:09,339 INFO L470 AbstractCegarLoop]: Abstraction has 230 states and 252 transitions. [2021-10-21 19:41:09,339 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-10-21 19:41:09,339 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 252 transitions. [2021-10-21 19:41:09,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-21 19:41:09,340 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:41:09,340 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:41:09,356 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce73d2e0-cd63-4905-8cb0-58b23aa80592/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-10-21 19:41:09,555 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce73d2e0-cd63-4905-8cb0-58b23aa80592/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 [2021-10-21 19:41:09,555 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting gl_insertErr1REQUIRES_VIOLATION === [__list_delErr0REQUIRES_VIOLATION, __list_delErr1REQUIRES_VIOLATION, __list_delErr2REQUIRES_VIOLATION, __list_delErr3REQUIRES_VIOLATION (and 67 more)] === [2021-10-21 19:41:09,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:41:09,556 INFO L82 PathProgramCache]: Analyzing trace with hash 963234381, now seen corresponding path program 1 times [2021-10-21 19:41:09,556 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-21 19:41:09,557 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [562200780] [2021-10-21 19:41:09,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:41:09,557 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-21 19:41:09,557 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce73d2e0-cd63-4905-8cb0-58b23aa80592/bin/uautomizer-j4sWxH34Be/mathsat [2021-10-21 19:41:09,558 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce73d2e0-cd63-4905-8cb0-58b23aa80592/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-21 19:41:09,562 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce73d2e0-cd63-4905-8cb0-58b23aa80592/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-21 19:41:09,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:41:09,794 INFO L263 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-21 19:41:09,796 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:41:09,824 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 [2021-10-21 19:41:09,846 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:41:09,846 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-21 19:41:09,946 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:41:09,946 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-21 19:41:09,947 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [562200780] [2021-10-21 19:41:09,947 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [562200780] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-21 19:41:09,947 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:41:09,947 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2021-10-21 19:41:09,947 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1789188029] [2021-10-21 19:41:09,948 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-21 19:41:09,948 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-21 19:41:09,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-21 19:41:09,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-21 19:41:09,949 INFO L87 Difference]: Start difference. First operand 230 states and 252 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-10-21 19:41:10,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:41:10,401 INFO L93 Difference]: Finished difference Result 227 states and 249 transitions. [2021-10-21 19:41:10,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 19:41:10,402 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 10 [2021-10-21 19:41:10,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:41:10,404 INFO L225 Difference]: With dead ends: 227 [2021-10-21 19:41:10,404 INFO L226 Difference]: Without dead ends: 227 [2021-10-21 19:41:10,404 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 31.0ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-21 19:41:10,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 227 states. [2021-10-21 19:41:10,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 227 to 227. [2021-10-21 19:41:10,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 227 states, 119 states have (on average 1.7058823529411764) internal successors, (203), 200 states have internal predecessors, (203), 31 states have call successors, (31), 14 states have call predecessors, (31), 12 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2021-10-21 19:41:10,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 249 transitions. [2021-10-21 19:41:10,425 INFO L78 Accepts]: Start accepts. Automaton has 227 states and 249 transitions. Word has length 10 [2021-10-21 19:41:10,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:41:10,426 INFO L470 AbstractCegarLoop]: Abstraction has 227 states and 249 transitions. [2021-10-21 19:41:10,426 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-10-21 19:41:10,426 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 249 transitions. [2021-10-21 19:41:10,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-10-21 19:41:10,427 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:41:10,427 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:41:10,436 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce73d2e0-cd63-4905-8cb0-58b23aa80592/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-10-21 19:41:10,632 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce73d2e0-cd63-4905-8cb0-58b23aa80592/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 [2021-10-21 19:41:10,633 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting list_addErr0REQUIRES_VIOLATION === [__list_delErr0REQUIRES_VIOLATION, __list_delErr1REQUIRES_VIOLATION, __list_delErr2REQUIRES_VIOLATION, __list_delErr3REQUIRES_VIOLATION (and 67 more)] === [2021-10-21 19:41:10,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:41:10,634 INFO L82 PathProgramCache]: Analyzing trace with hash 1039428672, now seen corresponding path program 1 times [2021-10-21 19:41:10,634 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-21 19:41:10,634 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [591361276] [2021-10-21 19:41:10,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:41:10,635 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-21 19:41:10,635 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce73d2e0-cd63-4905-8cb0-58b23aa80592/bin/uautomizer-j4sWxH34Be/mathsat [2021-10-21 19:41:10,636 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce73d2e0-cd63-4905-8cb0-58b23aa80592/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-21 19:41:10,637 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce73d2e0-cd63-4905-8cb0-58b23aa80592/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-10-21 19:41:10,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:41:10,931 INFO L263 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 12 conjunts are in the unsatisfiable core [2021-10-21 19:41:10,933 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:41:11,043 INFO L354 Elim1Store]: treesize reduction 77, result has 29.4 percent of original size [2021-10-21 19:41:11,044 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 [2021-10-21 19:41:11,340 INFO L354 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2021-10-21 19:41:11,341 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 20 treesize of output 27 [2021-10-21 19:41:11,602 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:41:11,603 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-21 19:41:28,091 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:41:28,091 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-21 19:41:28,091 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [591361276] [2021-10-21 19:41:28,092 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [591361276] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-21 19:41:28,092 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:41:28,092 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-10-21 19:41:28,093 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1492223903] [2021-10-21 19:41:28,093 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-10-21 19:41:28,093 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-21 19:41:28,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-21 19:41:28,095 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=51, Unknown=1, NotChecked=0, Total=72 [2021-10-21 19:41:28,095 INFO L87 Difference]: Start difference. First operand 227 states and 249 transitions. Second operand has 9 states, 8 states have (on average 1.75) internal successors, (14), 6 states have internal predecessors, (14), 4 states have call successors, (9), 5 states have call predecessors, (9), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-10-21 19:41:29,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:41:29,597 INFO L93 Difference]: Finished difference Result 253 states and 275 transitions. [2021-10-21 19:41:29,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-21 19:41:29,598 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 1.75) internal successors, (14), 6 states have internal predecessors, (14), 4 states have call successors, (9), 5 states have call predecessors, (9), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 13 [2021-10-21 19:41:29,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:41:29,601 INFO L225 Difference]: With dead ends: 253 [2021-10-21 19:41:29,601 INFO L226 Difference]: Without dead ends: 253 [2021-10-21 19:41:29,601 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 12 SyntacticMatches, 6 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 16520.2ms TimeCoverageRelationStatistics Valid=45, Invalid=86, Unknown=1, NotChecked=0, Total=132 [2021-10-21 19:41:29,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 253 states. [2021-10-21 19:41:29,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 253 to 232. [2021-10-21 19:41:29,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 232 states, 124 states have (on average 1.6774193548387097) internal successors, (208), 203 states have internal predecessors, (208), 32 states have call successors, (32), 15 states have call predecessors, (32), 13 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2021-10-21 19:41:29,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232 states to 232 states and 256 transitions. [2021-10-21 19:41:29,624 INFO L78 Accepts]: Start accepts. Automaton has 232 states and 256 transitions. Word has length 13 [2021-10-21 19:41:29,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:41:29,625 INFO L470 AbstractCegarLoop]: Abstraction has 232 states and 256 transitions. [2021-10-21 19:41:29,625 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 1.75) internal successors, (14), 6 states have internal predecessors, (14), 4 states have call successors, (9), 5 states have call predecessors, (9), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-10-21 19:41:29,625 INFO L276 IsEmpty]: Start isEmpty. Operand 232 states and 256 transitions. [2021-10-21 19:41:29,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-10-21 19:41:29,626 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:41:29,626 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:41:29,640 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce73d2e0-cd63-4905-8cb0-58b23aa80592/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (5)] Ended with exit code 0 [2021-10-21 19:41:29,840 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce73d2e0-cd63-4905-8cb0-58b23aa80592/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 [2021-10-21 19:41:29,841 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting list_addErr1REQUIRES_VIOLATION === [__list_delErr0REQUIRES_VIOLATION, __list_delErr1REQUIRES_VIOLATION, __list_delErr2REQUIRES_VIOLATION, __list_delErr3REQUIRES_VIOLATION (and 67 more)] === [2021-10-21 19:41:29,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:41:29,843 INFO L82 PathProgramCache]: Analyzing trace with hash 1039428673, now seen corresponding path program 1 times [2021-10-21 19:41:29,843 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-21 19:41:29,843 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [406109667] [2021-10-21 19:41:29,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:41:29,844 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-21 19:41:29,844 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce73d2e0-cd63-4905-8cb0-58b23aa80592/bin/uautomizer-j4sWxH34Be/mathsat [2021-10-21 19:41:29,845 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce73d2e0-cd63-4905-8cb0-58b23aa80592/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-21 19:41:29,846 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce73d2e0-cd63-4905-8cb0-58b23aa80592/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-10-21 19:41:30,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:41:30,118 INFO L263 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 22 conjunts are in the unsatisfiable core [2021-10-21 19:41:30,120 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:41:30,175 INFO L354 Elim1Store]: treesize reduction 33, result has 40.0 percent of original size [2021-10-21 19:41:30,175 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 [2021-10-21 19:41:30,232 INFO L354 Elim1Store]: treesize reduction 77, result has 29.4 percent of original size [2021-10-21 19:41:30,233 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 [2021-10-21 19:41:30,662 INFO L354 Elim1Store]: treesize reduction 32, result has 31.9 percent of original size [2021-10-21 19:41:30,663 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 44 treesize of output 51 [2021-10-21 19:41:30,694 INFO L354 Elim1Store]: treesize reduction 2, result has 92.0 percent of original size [2021-10-21 19:41:30,694 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 48 treesize of output 64 [2021-10-21 19:41:31,351 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:41:31,352 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-21 19:41:40,597 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:41:40,598 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-21 19:41:40,598 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [406109667] [2021-10-21 19:41:40,598 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [406109667] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-21 19:41:40,599 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:41:40,599 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 9 [2021-10-21 19:41:40,599 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [727963876] [2021-10-21 19:41:40,600 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-21 19:41:40,600 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-21 19:41:40,601 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-21 19:41:40,601 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=65, Unknown=2, NotChecked=0, Total=90 [2021-10-21 19:41:40,601 INFO L87 Difference]: Start difference. First operand 232 states and 256 transitions. Second operand has 10 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 7 states have internal predecessors, (14), 5 states have call successors, (9), 5 states have call predecessors, (9), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-10-21 19:41:43,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:41:43,463 INFO L93 Difference]: Finished difference Result 249 states and 272 transitions. [2021-10-21 19:41:43,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-21 19:41:43,464 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 7 states have internal predecessors, (14), 5 states have call successors, (9), 5 states have call predecessors, (9), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 13 [2021-10-21 19:41:43,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:41:43,467 INFO L225 Difference]: With dead ends: 249 [2021-10-21 19:41:43,467 INFO L226 Difference]: Without dead ends: 249 [2021-10-21 19:41:43,468 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 13 SyntacticMatches, 4 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 9012.1ms TimeCoverageRelationStatistics Valid=59, Invalid=121, Unknown=2, NotChecked=0, Total=182 [2021-10-21 19:41:43,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 249 states. [2021-10-21 19:41:43,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 249 to 229. [2021-10-21 19:41:43,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 229 states, 124 states have (on average 1.6370967741935485) internal successors, (203), 200 states have internal predecessors, (203), 32 states have call successors, (32), 15 states have call predecessors, (32), 13 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2021-10-21 19:41:43,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229 states to 229 states and 251 transitions. [2021-10-21 19:41:43,481 INFO L78 Accepts]: Start accepts. Automaton has 229 states and 251 transitions. Word has length 13 [2021-10-21 19:41:43,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:41:43,482 INFO L470 AbstractCegarLoop]: Abstraction has 229 states and 251 transitions. [2021-10-21 19:41:43,482 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 7 states have internal predecessors, (14), 5 states have call successors, (9), 5 states have call predecessors, (9), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-10-21 19:41:43,482 INFO L276 IsEmpty]: Start isEmpty. Operand 229 states and 251 transitions. [2021-10-21 19:41:43,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-21 19:41:43,483 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:41:43,483 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:41:43,503 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce73d2e0-cd63-4905-8cb0-58b23aa80592/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-10-21 19:41:43,700 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce73d2e0-cd63-4905-8cb0-58b23aa80592/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 [2021-10-21 19:41:43,700 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting __list_addErr0REQUIRES_VIOLATION === [__list_delErr0REQUIRES_VIOLATION, __list_delErr1REQUIRES_VIOLATION, __list_delErr2REQUIRES_VIOLATION, __list_delErr3REQUIRES_VIOLATION (and 67 more)] === [2021-10-21 19:41:43,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:41:43,701 INFO L82 PathProgramCache]: Analyzing trace with hash -1094064828, now seen corresponding path program 1 times [2021-10-21 19:41:43,701 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-21 19:41:43,701 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1340091508] [2021-10-21 19:41:43,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:41:43,701 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-21 19:41:43,701 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce73d2e0-cd63-4905-8cb0-58b23aa80592/bin/uautomizer-j4sWxH34Be/mathsat [2021-10-21 19:41:43,702 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce73d2e0-cd63-4905-8cb0-58b23aa80592/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-21 19:41:43,703 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce73d2e0-cd63-4905-8cb0-58b23aa80592/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-10-21 19:41:43,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:41:43,948 INFO L263 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 27 conjunts are in the unsatisfiable core [2021-10-21 19:41:43,950 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:41:44,036 INFO L354 Elim1Store]: treesize reduction 77, result has 29.4 percent of original size [2021-10-21 19:41:44,037 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 [2021-10-21 19:41:44,316 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-10-21 19:41:44,316 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 14 [2021-10-21 19:41:44,413 INFO L354 Elim1Store]: treesize reduction 336, result has 2.0 percent of original size [2021-10-21 19:41:44,414 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 [2021-10-21 19:41:44,486 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 17 [2021-10-21 19:41:44,548 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:41:44,548 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-21 19:41:44,643 INFO L354 Elim1Store]: treesize reduction 5, result has 58.3 percent of original size [2021-10-21 19:41:44,644 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 29 treesize of output 28 [2021-10-21 19:42:05,390 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_DerPreprocessor_4 (_ BitVec 32)) (v_DerPreprocessor_3 (_ BitVec 32)) (v_DerPreprocessor_2 (_ BitVec 32)) (v_DerPreprocessor_1 (_ BitVec 32)) (gl_insert_~node~1.offset (_ BitVec 32)) (v_gl_insert_~node~1.base_19 (_ BitVec 32))) (or (not (= (_ bv0 1) (bvneg (bvneg (bvneg (bvneg (select |c_#valid| v_gl_insert_~node~1.base_19))))))) (= |c_~#gl_list~0.base| (select (select (store |c_#memory_$Pointer$.base| v_gl_insert_~node~1.base_19 (store (store (store (store (select |c_#memory_$Pointer$.base| v_gl_insert_~node~1.base_19) gl_insert_~node~1.offset v_DerPreprocessor_1) (bvadd gl_insert_~node~1.offset (_ bv1 32)) v_DerPreprocessor_2) (bvadd (_ bv2 32) gl_insert_~node~1.offset) v_DerPreprocessor_3) (bvadd gl_insert_~node~1.offset (_ bv3 32)) v_DerPreprocessor_4)) |c_~#gl_list~0.base|) |c_~#gl_list~0.offset|)))) is different from false [2021-10-21 19:42:07,445 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_DerPreprocessor_4 (_ BitVec 32)) (v_DerPreprocessor_3 (_ BitVec 32)) (v_DerPreprocessor_2 (_ BitVec 32)) (v_DerPreprocessor_1 (_ BitVec 32)) (gl_insert_~node~1.offset (_ BitVec 32)) (v_gl_insert_~node~1.base_19 (_ BitVec 32))) (or (not (= (_ bv0 1) (bvneg (bvneg (bvneg (bvneg (bvneg (select |c_#valid| v_gl_insert_~node~1.base_19)))))))) (= |c_~#gl_list~0.base| (select (select (store |c_#memory_$Pointer$.base| v_gl_insert_~node~1.base_19 (store (store (store (store (select |c_#memory_$Pointer$.base| v_gl_insert_~node~1.base_19) gl_insert_~node~1.offset v_DerPreprocessor_1) (bvadd gl_insert_~node~1.offset (_ bv1 32)) v_DerPreprocessor_2) (bvadd (_ bv2 32) gl_insert_~node~1.offset) v_DerPreprocessor_3) (bvadd gl_insert_~node~1.offset (_ bv3 32)) v_DerPreprocessor_4)) |c_~#gl_list~0.base|) |c_~#gl_list~0.offset|)))) is different from false [2021-10-21 19:42:07,647 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:42:07,647 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-21 19:42:07,647 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1340091508] [2021-10-21 19:42:07,647 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1340091508] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-21 19:42:07,648 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:42:07,648 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 11] imperfect sequences [] total 13 [2021-10-21 19:42:07,648 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [149135539] [2021-10-21 19:42:07,649 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-10-21 19:42:07,649 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-21 19:42:07,650 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-10-21 19:42:07,650 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=100, Unknown=10, NotChecked=42, Total=182 [2021-10-21 19:42:07,650 INFO L87 Difference]: Start difference. First operand 229 states and 251 transitions. Second operand has 14 states, 10 states have (on average 1.4) internal successors, (14), 9 states have internal predecessors, (14), 6 states have call successors, (9), 7 states have call predecessors, (9), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-10-21 19:42:11,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:42:11,638 INFO L93 Difference]: Finished difference Result 252 states and 276 transitions. [2021-10-21 19:42:11,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-21 19:42:11,639 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 10 states have (on average 1.4) internal successors, (14), 9 states have internal predecessors, (14), 6 states have call successors, (9), 7 states have call predecessors, (9), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 16 [2021-10-21 19:42:11,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:42:11,641 INFO L225 Difference]: With dead ends: 252 [2021-10-21 19:42:11,641 INFO L226 Difference]: Without dead ends: 252 [2021-10-21 19:42:11,642 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 14 SyntacticMatches, 7 SemanticMatches, 19 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 25007.3ms TimeCoverageRelationStatistics Valid=80, Invalid=259, Unknown=11, NotChecked=70, Total=420 [2021-10-21 19:42:11,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 252 states. [2021-10-21 19:42:11,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 252 to 244. [2021-10-21 19:42:11,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 244 states, 135 states have (on average 1.637037037037037) internal successors, (221), 211 states have internal predecessors, (221), 35 states have call successors, (35), 18 states have call predecessors, (35), 14 states have return successors, (19), 16 states have call predecessors, (19), 19 states have call successors, (19) [2021-10-21 19:42:11,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 244 states and 275 transitions. [2021-10-21 19:42:11,655 INFO L78 Accepts]: Start accepts. Automaton has 244 states and 275 transitions. Word has length 16 [2021-10-21 19:42:11,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:42:11,656 INFO L470 AbstractCegarLoop]: Abstraction has 244 states and 275 transitions. [2021-10-21 19:42:11,656 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 10 states have (on average 1.4) internal successors, (14), 9 states have internal predecessors, (14), 6 states have call successors, (9), 7 states have call predecessors, (9), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-10-21 19:42:11,656 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 275 transitions. [2021-10-21 19:42:11,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-21 19:42:11,657 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:42:11,657 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:42:11,677 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce73d2e0-cd63-4905-8cb0-58b23aa80592/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-10-21 19:42:11,877 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce73d2e0-cd63-4905-8cb0-58b23aa80592/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 [2021-10-21 19:42:11,877 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting __list_addErr1REQUIRES_VIOLATION === [__list_delErr0REQUIRES_VIOLATION, __list_delErr1REQUIRES_VIOLATION, __list_delErr2REQUIRES_VIOLATION, __list_delErr3REQUIRES_VIOLATION (and 67 more)] === [2021-10-21 19:42:11,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:42:11,878 INFO L82 PathProgramCache]: Analyzing trace with hash -1094064827, now seen corresponding path program 1 times [2021-10-21 19:42:11,878 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-21 19:42:11,878 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2107138358] [2021-10-21 19:42:11,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:42:11,879 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-21 19:42:11,879 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce73d2e0-cd63-4905-8cb0-58b23aa80592/bin/uautomizer-j4sWxH34Be/mathsat [2021-10-21 19:42:11,880 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce73d2e0-cd63-4905-8cb0-58b23aa80592/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-21 19:42:11,881 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce73d2e0-cd63-4905-8cb0-58b23aa80592/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-10-21 19:42:12,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:42:12,183 INFO L263 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 48 conjunts are in the unsatisfiable core [2021-10-21 19:42:12,185 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:42:12,340 INFO L354 Elim1Store]: treesize reduction 77, result has 29.4 percent of original size [2021-10-21 19:42:12,340 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 28 treesize of output 49 [2021-10-21 19:42:12,402 INFO L354 Elim1Store]: treesize reduction 33, result has 40.0 percent of original size [2021-10-21 19:42:12,402 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 49 treesize of output 63 [2021-10-21 19:42:13,027 INFO L354 Elim1Store]: treesize reduction -2, result has 108.0 percent of original size [2021-10-21 19:42:13,028 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 45 treesize of output 65 [2021-10-21 19:42:13,082 INFO L354 Elim1Store]: treesize reduction 32, result has 31.9 percent of original size [2021-10-21 19:42:13,082 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 60 treesize of output 67 [2021-10-21 19:42:13,322 INFO L354 Elim1Store]: treesize reduction 336, result has 2.0 percent of original size [2021-10-21 19:42:13,322 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 [2021-10-21 19:42:13,381 INFO L354 Elim1Store]: treesize reduction 336, result has 2.0 percent of original size [2021-10-21 19:42:13,382 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 [2021-10-21 19:42:13,581 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 [2021-10-21 19:42:13,599 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 [2021-10-21 19:42:13,768 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:42:13,768 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-21 19:42:16,830 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_DerPreprocessor_7 (_ BitVec 32)) (v_DerPreprocessor_6 (_ BitVec 32)) (v_DerPreprocessor_5 (_ BitVec 32)) (v_DerPreprocessor_10 (_ BitVec 32)) (v_DerPreprocessor_11 (_ BitVec 32)) (v_DerPreprocessor_12 (_ BitVec 32)) (gl_insert_~node~1.offset (_ BitVec 32)) (v_DerPreprocessor_9 (_ BitVec 32)) (v_DerPreprocessor_8 (_ BitVec 32))) (let ((.cse0 (bvadd gl_insert_~node~1.offset (_ bv1 32))) (.cse1 (bvadd (_ bv2 32) gl_insert_~node~1.offset)) (.cse2 (bvadd gl_insert_~node~1.offset (_ bv3 32)))) (bvule (bvadd (_ bv8 32) (select (select (store |c_#memory_$Pointer$.offset| c_gl_insert_~node~1.base (store (store (store (store (select |c_#memory_$Pointer$.offset| c_gl_insert_~node~1.base) gl_insert_~node~1.offset v_DerPreprocessor_9) .cse0 v_DerPreprocessor_10) .cse1 v_DerPreprocessor_11) .cse2 v_DerPreprocessor_12)) |c_~#gl_list~0.base|) |c_~#gl_list~0.offset|)) (select |c_#length| (select (select (store |c_#memory_$Pointer$.base| c_gl_insert_~node~1.base (store (store (store (store (select |c_#memory_$Pointer$.base| c_gl_insert_~node~1.base) gl_insert_~node~1.offset v_DerPreprocessor_5) .cse0 v_DerPreprocessor_6) .cse1 v_DerPreprocessor_7) .cse2 v_DerPreprocessor_8)) |c_~#gl_list~0.base|) |c_~#gl_list~0.offset|))))) (forall ((v_DerPreprocessor_10 (_ BitVec 32)) (v_DerPreprocessor_11 (_ BitVec 32)) (v_DerPreprocessor_12 (_ BitVec 32)) (gl_insert_~node~1.offset (_ BitVec 32)) (v_DerPreprocessor_9 (_ BitVec 32))) (let ((.cse3 (select (select (store |c_#memory_$Pointer$.offset| c_gl_insert_~node~1.base (store (store (store (store (select |c_#memory_$Pointer$.offset| c_gl_insert_~node~1.base) gl_insert_~node~1.offset v_DerPreprocessor_9) (bvadd gl_insert_~node~1.offset (_ bv1 32)) v_DerPreprocessor_10) (bvadd (_ bv2 32) gl_insert_~node~1.offset) v_DerPreprocessor_11) (bvadd gl_insert_~node~1.offset (_ bv3 32)) v_DerPreprocessor_12)) |c_~#gl_list~0.base|) |c_~#gl_list~0.offset|))) (bvule (bvadd (_ bv4 32) .cse3) (bvadd (_ bv8 32) .cse3))))) is different from false [2021-10-21 19:42:19,122 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_gl_insert_~node~1.base_20 (_ BitVec 32))) (or (and (forall ((v_DerPreprocessor_10 (_ BitVec 32)) (v_DerPreprocessor_11 (_ BitVec 32)) (v_DerPreprocessor_12 (_ BitVec 32)) (gl_insert_~node~1.offset (_ BitVec 32)) (v_DerPreprocessor_9 (_ BitVec 32))) (let ((.cse0 (select (select (store |c_#memory_$Pointer$.offset| v_gl_insert_~node~1.base_20 (store (store (store (store (select |c_#memory_$Pointer$.offset| v_gl_insert_~node~1.base_20) gl_insert_~node~1.offset v_DerPreprocessor_9) (bvadd gl_insert_~node~1.offset (_ bv1 32)) v_DerPreprocessor_10) (bvadd (_ bv2 32) gl_insert_~node~1.offset) v_DerPreprocessor_11) (bvadd gl_insert_~node~1.offset (_ bv3 32)) v_DerPreprocessor_12)) |c_~#gl_list~0.base|) |c_~#gl_list~0.offset|))) (bvule (bvadd .cse0 (_ bv4 32)) (bvadd .cse0 (_ bv8 32))))) (forall ((v_DerPreprocessor_7 (_ BitVec 32)) (v_DerPreprocessor_6 (_ BitVec 32)) (v_DerPreprocessor_5 (_ BitVec 32)) (v_DerPreprocessor_10 (_ BitVec 32)) (v_DerPreprocessor_11 (_ BitVec 32)) (v_DerPreprocessor_12 (_ BitVec 32)) (gl_insert_~node~1.offset (_ BitVec 32)) (v_DerPreprocessor_9 (_ BitVec 32)) (v_DerPreprocessor_8 (_ BitVec 32))) (let ((.cse1 (bvadd gl_insert_~node~1.offset (_ bv1 32))) (.cse2 (bvadd (_ bv2 32) gl_insert_~node~1.offset)) (.cse3 (bvadd gl_insert_~node~1.offset (_ bv3 32)))) (bvule (bvadd (select (select (store |c_#memory_$Pointer$.offset| v_gl_insert_~node~1.base_20 (store (store (store (store (select |c_#memory_$Pointer$.offset| v_gl_insert_~node~1.base_20) gl_insert_~node~1.offset v_DerPreprocessor_9) .cse1 v_DerPreprocessor_10) .cse2 v_DerPreprocessor_11) .cse3 v_DerPreprocessor_12)) |c_~#gl_list~0.base|) |c_~#gl_list~0.offset|) (_ bv8 32)) (select (store |c_#length| v_gl_insert_~node~1.base_20 (_ bv20 32)) (select (select (store |c_#memory_$Pointer$.base| v_gl_insert_~node~1.base_20 (store (store (store (store (select |c_#memory_$Pointer$.base| v_gl_insert_~node~1.base_20) gl_insert_~node~1.offset v_DerPreprocessor_5) .cse1 v_DerPreprocessor_6) .cse2 v_DerPreprocessor_7) .cse3 v_DerPreprocessor_8)) |c_~#gl_list~0.base|) |c_~#gl_list~0.offset|)))))) (not (= (_ bv0 1) (bvneg (bvneg (select |c_#valid| v_gl_insert_~node~1.base_20))))))) is different from false [2021-10-21 19:42:21,375 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_gl_insert_~node~1.base_20 (_ BitVec 32))) (or (and (forall ((v_DerPreprocessor_10 (_ BitVec 32)) (v_DerPreprocessor_11 (_ BitVec 32)) (v_DerPreprocessor_12 (_ BitVec 32)) (gl_insert_~node~1.offset (_ BitVec 32)) (v_DerPreprocessor_9 (_ BitVec 32))) (let ((.cse0 (select (select (store |c_#memory_$Pointer$.offset| v_gl_insert_~node~1.base_20 (store (store (store (store (select |c_#memory_$Pointer$.offset| v_gl_insert_~node~1.base_20) gl_insert_~node~1.offset v_DerPreprocessor_9) (bvadd gl_insert_~node~1.offset (_ bv1 32)) v_DerPreprocessor_10) (bvadd (_ bv2 32) gl_insert_~node~1.offset) v_DerPreprocessor_11) (bvadd gl_insert_~node~1.offset (_ bv3 32)) v_DerPreprocessor_12)) |c_~#gl_list~0.base|) |c_~#gl_list~0.offset|))) (bvule (bvadd .cse0 (_ bv4 32)) (bvadd .cse0 (_ bv8 32))))) (forall ((v_DerPreprocessor_7 (_ BitVec 32)) (v_DerPreprocessor_6 (_ BitVec 32)) (v_DerPreprocessor_5 (_ BitVec 32)) (v_DerPreprocessor_10 (_ BitVec 32)) (v_DerPreprocessor_11 (_ BitVec 32)) (v_DerPreprocessor_12 (_ BitVec 32)) (gl_insert_~node~1.offset (_ BitVec 32)) (v_DerPreprocessor_9 (_ BitVec 32)) (v_DerPreprocessor_8 (_ BitVec 32))) (let ((.cse1 (bvadd gl_insert_~node~1.offset (_ bv1 32))) (.cse2 (bvadd (_ bv2 32) gl_insert_~node~1.offset)) (.cse3 (bvadd gl_insert_~node~1.offset (_ bv3 32)))) (bvule (bvadd (select (select (store |c_#memory_$Pointer$.offset| v_gl_insert_~node~1.base_20 (store (store (store (store (select |c_#memory_$Pointer$.offset| v_gl_insert_~node~1.base_20) gl_insert_~node~1.offset v_DerPreprocessor_9) .cse1 v_DerPreprocessor_10) .cse2 v_DerPreprocessor_11) .cse3 v_DerPreprocessor_12)) |c_~#gl_list~0.base|) |c_~#gl_list~0.offset|) (_ bv8 32)) (select (store |c_#length| v_gl_insert_~node~1.base_20 (_ bv20 32)) (select (select (store |c_#memory_$Pointer$.base| v_gl_insert_~node~1.base_20 (store (store (store (store (select |c_#memory_$Pointer$.base| v_gl_insert_~node~1.base_20) gl_insert_~node~1.offset v_DerPreprocessor_5) .cse1 v_DerPreprocessor_6) .cse2 v_DerPreprocessor_7) .cse3 v_DerPreprocessor_8)) |c_~#gl_list~0.base|) |c_~#gl_list~0.offset|)))))) (not (= (_ bv0 1) (bvneg (bvneg (bvneg (select |c_#valid| v_gl_insert_~node~1.base_20)))))))) is different from false [2021-10-21 19:42:23,532 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_gl_insert_~node~1.base_20 (_ BitVec 32))) (or (and (forall ((v_DerPreprocessor_10 (_ BitVec 32)) (v_DerPreprocessor_11 (_ BitVec 32)) (v_DerPreprocessor_12 (_ BitVec 32)) (gl_insert_~node~1.offset (_ BitVec 32)) (v_DerPreprocessor_9 (_ BitVec 32))) (let ((.cse0 (select (select (store |c_#memory_$Pointer$.offset| v_gl_insert_~node~1.base_20 (store (store (store (store (select |c_#memory_$Pointer$.offset| v_gl_insert_~node~1.base_20) gl_insert_~node~1.offset v_DerPreprocessor_9) (bvadd gl_insert_~node~1.offset (_ bv1 32)) v_DerPreprocessor_10) (bvadd (_ bv2 32) gl_insert_~node~1.offset) v_DerPreprocessor_11) (bvadd gl_insert_~node~1.offset (_ bv3 32)) v_DerPreprocessor_12)) |c_~#gl_list~0.base|) |c_~#gl_list~0.offset|))) (bvule (bvadd .cse0 (_ bv4 32)) (bvadd .cse0 (_ bv8 32))))) (forall ((v_DerPreprocessor_7 (_ BitVec 32)) (v_DerPreprocessor_6 (_ BitVec 32)) (v_DerPreprocessor_5 (_ BitVec 32)) (v_DerPreprocessor_10 (_ BitVec 32)) (v_DerPreprocessor_11 (_ BitVec 32)) (v_DerPreprocessor_12 (_ BitVec 32)) (gl_insert_~node~1.offset (_ BitVec 32)) (v_DerPreprocessor_9 (_ BitVec 32)) (v_DerPreprocessor_8 (_ BitVec 32))) (let ((.cse1 (bvadd gl_insert_~node~1.offset (_ bv1 32))) (.cse2 (bvadd (_ bv2 32) gl_insert_~node~1.offset)) (.cse3 (bvadd gl_insert_~node~1.offset (_ bv3 32)))) (bvule (bvadd (select (select (store |c_#memory_$Pointer$.offset| v_gl_insert_~node~1.base_20 (store (store (store (store (select |c_#memory_$Pointer$.offset| v_gl_insert_~node~1.base_20) gl_insert_~node~1.offset v_DerPreprocessor_9) .cse1 v_DerPreprocessor_10) .cse2 v_DerPreprocessor_11) .cse3 v_DerPreprocessor_12)) |c_~#gl_list~0.base|) |c_~#gl_list~0.offset|) (_ bv8 32)) (select (store |c_#length| v_gl_insert_~node~1.base_20 (_ bv20 32)) (select (select (store |c_#memory_$Pointer$.base| v_gl_insert_~node~1.base_20 (store (store (store (store (select |c_#memory_$Pointer$.base| v_gl_insert_~node~1.base_20) gl_insert_~node~1.offset v_DerPreprocessor_5) .cse1 v_DerPreprocessor_6) .cse2 v_DerPreprocessor_7) .cse3 v_DerPreprocessor_8)) |c_~#gl_list~0.base|) |c_~#gl_list~0.offset|)))))) (not (= (_ bv0 1) (bvneg (bvneg (bvneg (bvneg (bvneg (select |c_#valid| v_gl_insert_~node~1.base_20)))))))))) is different from false [2021-10-21 19:42:35,301 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:42:35,301 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-21 19:42:35,301 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2107138358] [2021-10-21 19:42:35,301 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2107138358] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-21 19:42:35,301 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:42:35,302 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 12] imperfect sequences [] total 20 [2021-10-21 19:42:35,302 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1896862126] [2021-10-21 19:42:35,302 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2021-10-21 19:42:35,303 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-21 19:42:35,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-10-21 19:42:35,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=232, Unknown=7, NotChecked=132, Total=420 [2021-10-21 19:42:35,304 INFO L87 Difference]: Start difference. First operand 244 states and 275 transitions. Second operand has 21 states, 14 states have (on average 1.2857142857142858) internal successors, (18), 13 states have internal predecessors, (18), 9 states have call successors, (11), 9 states have call predecessors, (11), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-10-21 19:42:37,762 WARN L838 $PredicateComparison]: unable to prove that (and (= |c_~#gl_list~0.base| (select (select |c_#memory_$Pointer$.base| |c_~#gl_list~0.base|) |c_~#gl_list~0.offset|)) (let ((.cse0 (select |c_#length| (_ bv0 32)))) (or (= (_ bv22 32) .cse0) (= |c_~#gl_list~0.base| (_ bv0 32)) (= (_ bv2 32) .cse0) (= (_ bv0 1) (select |c_#valid| (_ bv0 32))))) (= (select (select |c_#memory_$Pointer$.offset| |c_~#gl_list~0.base|) |c_~#gl_list~0.offset|) |c_~#gl_list~0.offset|) (= |c_~#gl_list~0.offset| (_ bv0 32)) (= (_ bv8 32) (select |c_#length| |c_~#gl_list~0.base|)) (= (_ bv0 1) (bvadd (_ bv1 1) (bvneg (select |c_#valid| |c_~#gl_list~0.base|)))) (forall ((v_gl_insert_~node~1.base_20 (_ BitVec 32))) (or (and (forall ((v_DerPreprocessor_10 (_ BitVec 32)) (v_DerPreprocessor_11 (_ BitVec 32)) (v_DerPreprocessor_12 (_ BitVec 32)) (gl_insert_~node~1.offset (_ BitVec 32)) (v_DerPreprocessor_9 (_ BitVec 32))) (let ((.cse1 (select (select (store |c_#memory_$Pointer$.offset| v_gl_insert_~node~1.base_20 (store (store (store (store (select |c_#memory_$Pointer$.offset| v_gl_insert_~node~1.base_20) gl_insert_~node~1.offset v_DerPreprocessor_9) (bvadd gl_insert_~node~1.offset (_ bv1 32)) v_DerPreprocessor_10) (bvadd (_ bv2 32) gl_insert_~node~1.offset) v_DerPreprocessor_11) (bvadd gl_insert_~node~1.offset (_ bv3 32)) v_DerPreprocessor_12)) |c_~#gl_list~0.base|) |c_~#gl_list~0.offset|))) (bvule (bvadd .cse1 (_ bv4 32)) (bvadd .cse1 (_ bv8 32))))) (forall ((v_DerPreprocessor_7 (_ BitVec 32)) (v_DerPreprocessor_6 (_ BitVec 32)) (v_DerPreprocessor_5 (_ BitVec 32)) (v_DerPreprocessor_10 (_ BitVec 32)) (v_DerPreprocessor_11 (_ BitVec 32)) (v_DerPreprocessor_12 (_ BitVec 32)) (gl_insert_~node~1.offset (_ BitVec 32)) (v_DerPreprocessor_9 (_ BitVec 32)) (v_DerPreprocessor_8 (_ BitVec 32))) (let ((.cse2 (bvadd gl_insert_~node~1.offset (_ bv1 32))) (.cse3 (bvadd (_ bv2 32) gl_insert_~node~1.offset)) (.cse4 (bvadd gl_insert_~node~1.offset (_ bv3 32)))) (bvule (bvadd (select (select (store |c_#memory_$Pointer$.offset| v_gl_insert_~node~1.base_20 (store (store (store (store (select |c_#memory_$Pointer$.offset| v_gl_insert_~node~1.base_20) gl_insert_~node~1.offset v_DerPreprocessor_9) .cse2 v_DerPreprocessor_10) .cse3 v_DerPreprocessor_11) .cse4 v_DerPreprocessor_12)) |c_~#gl_list~0.base|) |c_~#gl_list~0.offset|) (_ bv8 32)) (select (store |c_#length| v_gl_insert_~node~1.base_20 (_ bv20 32)) (select (select (store |c_#memory_$Pointer$.base| v_gl_insert_~node~1.base_20 (store (store (store (store (select |c_#memory_$Pointer$.base| v_gl_insert_~node~1.base_20) gl_insert_~node~1.offset v_DerPreprocessor_5) .cse2 v_DerPreprocessor_6) .cse3 v_DerPreprocessor_7) .cse4 v_DerPreprocessor_8)) |c_~#gl_list~0.base|) |c_~#gl_list~0.offset|)))))) (not (= (_ bv0 1) (bvneg (bvneg (select |c_#valid| v_gl_insert_~node~1.base_20)))))))) is different from false [2021-10-21 19:42:49,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:42:49,762 INFO L93 Difference]: Finished difference Result 251 states and 275 transitions. [2021-10-21 19:42:49,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-10-21 19:42:49,763 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 14 states have (on average 1.2857142857142858) internal successors, (18), 13 states have internal predecessors, (18), 9 states have call successors, (11), 9 states have call predecessors, (11), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 16 [2021-10-21 19:42:49,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:42:49,765 INFO L225 Difference]: With dead ends: 251 [2021-10-21 19:42:49,765 INFO L226 Difference]: Without dead ends: 251 [2021-10-21 19:42:49,766 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 10 SyntacticMatches, 6 SemanticMatches, 27 ConstructedPredicates, 5 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 23636.9ms TimeCoverageRelationStatistics Valid=109, Invalid=455, Unknown=8, NotChecked=240, Total=812 [2021-10-21 19:42:49,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 251 states. [2021-10-21 19:42:49,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 251 to 244. [2021-10-21 19:42:49,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 244 states, 135 states have (on average 1.6296296296296295) internal successors, (220), 211 states have internal predecessors, (220), 35 states have call successors, (35), 18 states have call predecessors, (35), 14 states have return successors, (19), 16 states have call predecessors, (19), 19 states have call successors, (19) [2021-10-21 19:42:49,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 244 states and 274 transitions. [2021-10-21 19:42:49,777 INFO L78 Accepts]: Start accepts. Automaton has 244 states and 274 transitions. Word has length 16 [2021-10-21 19:42:49,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:42:49,778 INFO L470 AbstractCegarLoop]: Abstraction has 244 states and 274 transitions. [2021-10-21 19:42:49,778 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 14 states have (on average 1.2857142857142858) internal successors, (18), 13 states have internal predecessors, (18), 9 states have call successors, (11), 9 states have call predecessors, (11), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-10-21 19:42:49,778 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 274 transitions. [2021-10-21 19:42:49,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-10-21 19:42:49,779 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:42:49,779 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:42:49,796 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce73d2e0-cd63-4905-8cb0-58b23aa80592/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-10-21 19:42:49,992 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce73d2e0-cd63-4905-8cb0-58b23aa80592/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 [2021-10-21 19:42:49,996 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting __list_addErr2REQUIRES_VIOLATION === [__list_delErr0REQUIRES_VIOLATION, __list_delErr1REQUIRES_VIOLATION, __list_delErr2REQUIRES_VIOLATION, __list_delErr3REQUIRES_VIOLATION (and 67 more)] === [2021-10-21 19:42:49,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:42:49,996 INFO L82 PathProgramCache]: Analyzing trace with hash 443729184, now seen corresponding path program 1 times [2021-10-21 19:42:49,996 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-21 19:42:49,996 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1306896036] [2021-10-21 19:42:49,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:42:49,997 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-21 19:42:49,997 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce73d2e0-cd63-4905-8cb0-58b23aa80592/bin/uautomizer-j4sWxH34Be/mathsat [2021-10-21 19:42:49,997 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce73d2e0-cd63-4905-8cb0-58b23aa80592/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-21 19:42:49,998 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce73d2e0-cd63-4905-8cb0-58b23aa80592/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-10-21 19:42:50,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:42:50,264 INFO L263 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-21 19:42:50,265 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:42:50,291 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 [2021-10-21 19:42:50,388 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:42:50,388 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-21 19:42:50,498 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:42:50,499 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-21 19:42:50,499 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1306896036] [2021-10-21 19:42:50,499 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1306896036] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-21 19:42:50,499 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:42:50,499 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 6 [2021-10-21 19:42:50,499 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2033990963] [2021-10-21 19:42:50,499 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-21 19:42:50,500 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-21 19:42:50,500 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-21 19:42:50,501 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-10-21 19:42:50,501 INFO L87 Difference]: Start difference. First operand 244 states and 274 transitions. Second operand has 7 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 5 states have internal predecessors, (10), 3 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-10-21 19:42:51,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:42:51,480 INFO L93 Difference]: Finished difference Result 256 states and 283 transitions. [2021-10-21 19:42:51,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-21 19:42:51,481 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 5 states have internal predecessors, (10), 3 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 17 [2021-10-21 19:42:51,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:42:51,483 INFO L225 Difference]: With dead ends: 256 [2021-10-21 19:42:51,483 INFO L226 Difference]: Without dead ends: 256 [2021-10-21 19:42:51,483 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 24 SyntacticMatches, 4 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 128.8ms TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-10-21 19:42:51,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 256 states. [2021-10-21 19:42:51,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 256 to 250. [2021-10-21 19:42:51,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 250 states, 141 states have (on average 1.624113475177305) internal successors, (229), 216 states have internal predecessors, (229), 35 states have call successors, (35), 19 states have call predecessors, (35), 15 states have return successors, (19), 16 states have call predecessors, (19), 19 states have call successors, (19) [2021-10-21 19:42:51,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 250 states to 250 states and 283 transitions. [2021-10-21 19:42:51,496 INFO L78 Accepts]: Start accepts. Automaton has 250 states and 283 transitions. Word has length 17 [2021-10-21 19:42:51,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:42:51,497 INFO L470 AbstractCegarLoop]: Abstraction has 250 states and 283 transitions. [2021-10-21 19:42:51,497 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 5 states have internal predecessors, (10), 3 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-10-21 19:42:51,497 INFO L276 IsEmpty]: Start isEmpty. Operand 250 states and 283 transitions. [2021-10-21 19:42:51,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-10-21 19:42:51,498 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:42:51,498 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:42:51,516 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce73d2e0-cd63-4905-8cb0-58b23aa80592/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (9)] Ended with exit code 0 [2021-10-21 19:42:51,713 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce73d2e0-cd63-4905-8cb0-58b23aa80592/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 [2021-10-21 19:42:51,714 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting __list_addErr3REQUIRES_VIOLATION === [__list_delErr0REQUIRES_VIOLATION, __list_delErr1REQUIRES_VIOLATION, __list_delErr2REQUIRES_VIOLATION, __list_delErr3REQUIRES_VIOLATION (and 67 more)] === [2021-10-21 19:42:51,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:42:51,714 INFO L82 PathProgramCache]: Analyzing trace with hash 443729185, now seen corresponding path program 1 times [2021-10-21 19:42:51,714 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-21 19:42:51,714 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1912073294] [2021-10-21 19:42:51,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:42:51,715 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-21 19:42:51,715 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce73d2e0-cd63-4905-8cb0-58b23aa80592/bin/uautomizer-j4sWxH34Be/mathsat [2021-10-21 19:42:51,715 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce73d2e0-cd63-4905-8cb0-58b23aa80592/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-21 19:42:51,717 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce73d2e0-cd63-4905-8cb0-58b23aa80592/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-10-21 19:42:51,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:42:51,976 INFO L263 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 11 conjunts are in the unsatisfiable core [2021-10-21 19:42:51,977 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:42:52,005 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 [2021-10-21 19:42:52,163 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:42:52,163 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-21 19:42:52,617 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:42:52,617 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-21 19:42:52,618 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1912073294] [2021-10-21 19:42:52,618 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1912073294] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-21 19:42:52,618 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:42:52,618 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 11 [2021-10-21 19:42:52,618 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1334015377] [2021-10-21 19:42:52,619 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-10-21 19:42:52,619 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-21 19:42:52,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-10-21 19:42:52,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2021-10-21 19:42:52,620 INFO L87 Difference]: Start difference. First operand 250 states and 283 transitions. Second operand has 12 states, 11 states have (on average 1.6363636363636365) internal successors, (18), 8 states have internal predecessors, (18), 5 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-10-21 19:42:54,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:42:54,697 INFO L93 Difference]: Finished difference Result 254 states and 279 transitions. [2021-10-21 19:42:54,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-21 19:42:54,699 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 1.6363636363636365) internal successors, (18), 8 states have internal predecessors, (18), 5 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 17 [2021-10-21 19:42:54,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:42:54,701 INFO L225 Difference]: With dead ends: 254 [2021-10-21 19:42:54,701 INFO L226 Difference]: Without dead ends: 254 [2021-10-21 19:42:54,702 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 403.8ms TimeCoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2021-10-21 19:42:54,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254 states. [2021-10-21 19:42:54,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 254 to 250. [2021-10-21 19:42:54,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 250 states, 141 states have (on average 1.5957446808510638) internal successors, (225), 216 states have internal predecessors, (225), 35 states have call successors, (35), 19 states have call predecessors, (35), 15 states have return successors, (19), 16 states have call predecessors, (19), 19 states have call successors, (19) [2021-10-21 19:42:54,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 250 states to 250 states and 279 transitions. [2021-10-21 19:42:54,713 INFO L78 Accepts]: Start accepts. Automaton has 250 states and 279 transitions. Word has length 17 [2021-10-21 19:42:54,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:42:54,713 INFO L470 AbstractCegarLoop]: Abstraction has 250 states and 279 transitions. [2021-10-21 19:42:54,713 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 1.6363636363636365) internal successors, (18), 8 states have internal predecessors, (18), 5 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-10-21 19:42:54,714 INFO L276 IsEmpty]: Start isEmpty. Operand 250 states and 279 transitions. [2021-10-21 19:42:54,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-10-21 19:42:54,714 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:42:54,714 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:42:54,730 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce73d2e0-cd63-4905-8cb0-58b23aa80592/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-10-21 19:42:54,930 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce73d2e0-cd63-4905-8cb0-58b23aa80592/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 [2021-10-21 19:42:54,931 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting __list_addErr6REQUIRES_VIOLATION === [__list_delErr0REQUIRES_VIOLATION, __list_delErr1REQUIRES_VIOLATION, __list_delErr2REQUIRES_VIOLATION, __list_delErr3REQUIRES_VIOLATION (and 67 more)] === [2021-10-21 19:42:54,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:42:54,931 INFO L82 PathProgramCache]: Analyzing trace with hash 1221999107, now seen corresponding path program 1 times [2021-10-21 19:42:54,931 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-21 19:42:54,931 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [284346211] [2021-10-21 19:42:54,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:42:54,932 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-21 19:42:54,932 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce73d2e0-cd63-4905-8cb0-58b23aa80592/bin/uautomizer-j4sWxH34Be/mathsat [2021-10-21 19:42:54,932 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce73d2e0-cd63-4905-8cb0-58b23aa80592/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-21 19:42:54,935 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce73d2e0-cd63-4905-8cb0-58b23aa80592/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-10-21 19:42:55,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:42:55,231 INFO L263 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-21 19:42:55,232 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:42:55,312 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:42:55,313 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-21 19:42:55,387 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:42:55,387 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-21 19:42:55,388 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [284346211] [2021-10-21 19:42:55,388 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [284346211] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-21 19:42:55,388 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:42:55,388 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-10-21 19:42:55,388 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1556529630] [2021-10-21 19:42:55,388 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-21 19:42:55,389 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-21 19:42:55,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-21 19:42:55,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-21 19:42:55,389 INFO L87 Difference]: Start difference. First operand 250 states and 279 transitions. Second operand has 5 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-10-21 19:42:55,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:42:55,880 INFO L93 Difference]: Finished difference Result 249 states and 276 transitions. [2021-10-21 19:42:55,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-21 19:42:55,881 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 19 [2021-10-21 19:42:55,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:42:55,884 INFO L225 Difference]: With dead ends: 249 [2021-10-21 19:42:55,884 INFO L226 Difference]: Without dead ends: 249 [2021-10-21 19:42:55,884 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 32 SyntacticMatches, 2 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 47.9ms TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-21 19:42:55,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 249 states. [2021-10-21 19:42:55,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 249 to 249. [2021-10-21 19:42:55,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 249 states, 141 states have (on average 1.574468085106383) internal successors, (222), 215 states have internal predecessors, (222), 35 states have call successors, (35), 19 states have call predecessors, (35), 15 states have return successors, (19), 16 states have call predecessors, (19), 19 states have call successors, (19) [2021-10-21 19:42:55,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 249 states and 276 transitions. [2021-10-21 19:42:55,895 INFO L78 Accepts]: Start accepts. Automaton has 249 states and 276 transitions. Word has length 19 [2021-10-21 19:42:55,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:42:55,895 INFO L470 AbstractCegarLoop]: Abstraction has 249 states and 276 transitions. [2021-10-21 19:42:55,896 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-10-21 19:42:55,896 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 276 transitions. [2021-10-21 19:42:55,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-10-21 19:42:55,896 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:42:55,897 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:42:55,913 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce73d2e0-cd63-4905-8cb0-58b23aa80592/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-10-21 19:42:56,109 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce73d2e0-cd63-4905-8cb0-58b23aa80592/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 [2021-10-21 19:42:56,109 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting __list_addErr7REQUIRES_VIOLATION === [__list_delErr0REQUIRES_VIOLATION, __list_delErr1REQUIRES_VIOLATION, __list_delErr2REQUIRES_VIOLATION, __list_delErr3REQUIRES_VIOLATION (and 67 more)] === [2021-10-21 19:42:56,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:42:56,109 INFO L82 PathProgramCache]: Analyzing trace with hash 1221999108, now seen corresponding path program 1 times [2021-10-21 19:42:56,109 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-21 19:42:56,110 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [901357657] [2021-10-21 19:42:56,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:42:56,110 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-21 19:42:56,110 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce73d2e0-cd63-4905-8cb0-58b23aa80592/bin/uautomizer-j4sWxH34Be/mathsat [2021-10-21 19:42:56,111 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce73d2e0-cd63-4905-8cb0-58b23aa80592/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-21 19:42:56,112 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce73d2e0-cd63-4905-8cb0-58b23aa80592/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-10-21 19:42:56,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:42:56,424 INFO L263 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-21 19:42:56,425 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:42:56,671 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:42:56,671 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-21 19:42:56,990 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 [2021-10-21 19:42:57,252 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:42:57,253 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-21 19:42:57,253 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [901357657] [2021-10-21 19:42:57,253 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [901357657] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-21 19:42:57,253 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:42:57,253 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 13 [2021-10-21 19:42:57,253 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [936366068] [2021-10-21 19:42:57,254 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-10-21 19:42:57,254 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-21 19:42:57,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-10-21 19:42:57,255 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2021-10-21 19:42:57,255 INFO L87 Difference]: Start difference. First operand 249 states and 276 transitions. Second operand has 14 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 9 states have internal predecessors, (24), 5 states have call successors, (11), 7 states have call predecessors, (11), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-10-21 19:42:59,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:42:59,038 INFO L93 Difference]: Finished difference Result 250 states and 273 transitions. [2021-10-21 19:42:59,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-21 19:42:59,040 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 9 states have internal predecessors, (24), 5 states have call successors, (11), 7 states have call predecessors, (11), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 19 [2021-10-21 19:42:59,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:42:59,042 INFO L225 Difference]: With dead ends: 250 [2021-10-21 19:42:59,042 INFO L226 Difference]: Without dead ends: 250 [2021-10-21 19:42:59,042 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 837.9ms TimeCoverageRelationStatistics Valid=98, Invalid=364, Unknown=0, NotChecked=0, Total=462 [2021-10-21 19:42:59,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 250 states. [2021-10-21 19:42:59,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 250 to 248. [2021-10-21 19:42:59,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 248 states, 141 states have (on average 1.553191489361702) internal successors, (219), 214 states have internal predecessors, (219), 35 states have call successors, (35), 19 states have call predecessors, (35), 15 states have return successors, (19), 16 states have call predecessors, (19), 19 states have call successors, (19) [2021-10-21 19:42:59,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 248 states to 248 states and 273 transitions. [2021-10-21 19:42:59,052 INFO L78 Accepts]: Start accepts. Automaton has 248 states and 273 transitions. Word has length 19 [2021-10-21 19:42:59,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:42:59,053 INFO L470 AbstractCegarLoop]: Abstraction has 248 states and 273 transitions. [2021-10-21 19:42:59,053 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 9 states have internal predecessors, (24), 5 states have call successors, (11), 7 states have call predecessors, (11), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-10-21 19:42:59,053 INFO L276 IsEmpty]: Start isEmpty. Operand 248 states and 273 transitions. [2021-10-21 19:42:59,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-10-21 19:42:59,054 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:42:59,055 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:42:59,077 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce73d2e0-cd63-4905-8cb0-58b23aa80592/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2021-10-21 19:42:59,267 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce73d2e0-cd63-4905-8cb0-58b23aa80592/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 [2021-10-21 19:42:59,267 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting failErr0ASSERT_VIOLATIONMEMORY_LEAK === [__list_delErr0REQUIRES_VIOLATION, __list_delErr1REQUIRES_VIOLATION, __list_delErr2REQUIRES_VIOLATION, __list_delErr3REQUIRES_VIOLATION (and 67 more)] === [2021-10-21 19:42:59,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:42:59,267 INFO L82 PathProgramCache]: Analyzing trace with hash 695927283, now seen corresponding path program 1 times [2021-10-21 19:42:59,268 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-21 19:42:59,268 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1397005119] [2021-10-21 19:42:59,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:42:59,268 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-21 19:42:59,268 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce73d2e0-cd63-4905-8cb0-58b23aa80592/bin/uautomizer-j4sWxH34Be/mathsat [2021-10-21 19:42:59,269 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce73d2e0-cd63-4905-8cb0-58b23aa80592/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-21 19:42:59,270 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce73d2e0-cd63-4905-8cb0-58b23aa80592/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2021-10-21 19:42:59,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:42:59,609 INFO L263 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-21 19:42:59,611 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:42:59,776 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:42:59,776 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-21 19:42:59,880 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:42:59,880 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-21 19:42:59,880 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1397005119] [2021-10-21 19:42:59,881 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1397005119] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-21 19:42:59,881 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:42:59,881 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-10-21 19:42:59,881 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [423850870] [2021-10-21 19:42:59,881 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-21 19:42:59,881 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-21 19:42:59,881 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-21 19:42:59,882 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-21 19:42:59,882 INFO L87 Difference]: Start difference. First operand 248 states and 273 transitions. Second operand has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 3 states have call successors, (12), 4 states have call predecessors, (12), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2021-10-21 19:43:00,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:43:00,121 INFO L93 Difference]: Finished difference Result 247 states and 271 transitions. [2021-10-21 19:43:00,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-21 19:43:00,122 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 3 states have call successors, (12), 4 states have call predecessors, (12), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 38 [2021-10-21 19:43:00,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:43:00,124 INFO L225 Difference]: With dead ends: 247 [2021-10-21 19:43:00,124 INFO L226 Difference]: Without dead ends: 247 [2021-10-21 19:43:00,124 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 52.2ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-21 19:43:00,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 247 states. [2021-10-21 19:43:00,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 247 to 247. [2021-10-21 19:43:00,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 247 states, 141 states have (on average 1.5460992907801419) internal successors, (218), 213 states have internal predecessors, (218), 34 states have call successors, (34), 19 states have call predecessors, (34), 15 states have return successors, (19), 16 states have call predecessors, (19), 19 states have call successors, (19) [2021-10-21 19:43:00,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 247 states to 247 states and 271 transitions. [2021-10-21 19:43:00,133 INFO L78 Accepts]: Start accepts. Automaton has 247 states and 271 transitions. Word has length 38 [2021-10-21 19:43:00,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:43:00,134 INFO L470 AbstractCegarLoop]: Abstraction has 247 states and 271 transitions. [2021-10-21 19:43:00,134 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 3 states have call successors, (12), 4 states have call predecessors, (12), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2021-10-21 19:43:00,134 INFO L276 IsEmpty]: Start isEmpty. Operand 247 states and 271 transitions. [2021-10-21 19:43:00,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-10-21 19:43:00,135 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:43:00,135 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:43:00,156 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce73d2e0-cd63-4905-8cb0-58b23aa80592/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2021-10-21 19:43:00,352 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce73d2e0-cd63-4905-8cb0-58b23aa80592/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 [2021-10-21 19:43:00,352 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting inspectErr0REQUIRES_VIOLATION === [__list_delErr0REQUIRES_VIOLATION, __list_delErr1REQUIRES_VIOLATION, __list_delErr2REQUIRES_VIOLATION, __list_delErr3REQUIRES_VIOLATION (and 67 more)] === [2021-10-21 19:43:00,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:43:00,353 INFO L82 PathProgramCache]: Analyzing trace with hash 695915251, now seen corresponding path program 1 times [2021-10-21 19:43:00,353 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-21 19:43:00,353 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [127624235] [2021-10-21 19:43:00,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:43:00,354 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-21 19:43:00,354 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce73d2e0-cd63-4905-8cb0-58b23aa80592/bin/uautomizer-j4sWxH34Be/mathsat [2021-10-21 19:43:00,355 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce73d2e0-cd63-4905-8cb0-58b23aa80592/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-21 19:43:00,402 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce73d2e0-cd63-4905-8cb0-58b23aa80592/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2021-10-21 19:43:00,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:43:00,714 INFO L263 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-21 19:43:00,715 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:43:00,913 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:43:00,913 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-21 19:43:01,228 INFO L354 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2021-10-21 19:43:01,228 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 20 [2021-10-21 19:43:01,252 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:43:01,252 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-21 19:43:01,252 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [127624235] [2021-10-21 19:43:01,252 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [127624235] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-21 19:43:01,252 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:43:01,252 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 6] imperfect sequences [] total 7 [2021-10-21 19:43:01,252 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1340967451] [2021-10-21 19:43:01,253 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-21 19:43:01,253 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-21 19:43:01,253 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-21 19:43:01,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-10-21 19:43:01,254 INFO L87 Difference]: Start difference. First operand 247 states and 271 transitions. Second operand has 8 states, 7 states have (on average 4.571428571428571) internal successors, (32), 7 states have internal predecessors, (32), 3 states have call successors, (8), 3 states have call predecessors, (8), 4 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) [2021-10-21 19:43:02,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:43:02,251 INFO L93 Difference]: Finished difference Result 242 states and 266 transitions. [2021-10-21 19:43:02,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-21 19:43:02,252 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 4.571428571428571) internal successors, (32), 7 states have internal predecessors, (32), 3 states have call successors, (8), 3 states have call predecessors, (8), 4 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) Word has length 38 [2021-10-21 19:43:02,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:43:02,254 INFO L225 Difference]: With dead ends: 242 [2021-10-21 19:43:02,254 INFO L226 Difference]: Without dead ends: 242 [2021-10-21 19:43:02,254 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 64 SyntacticMatches, 5 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 162.9ms TimeCoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2021-10-21 19:43:02,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 242 states. [2021-10-21 19:43:02,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 242 to 242. [2021-10-21 19:43:02,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 242 states, 141 states have (on average 1.5106382978723405) internal successors, (213), 208 states have internal predecessors, (213), 34 states have call successors, (34), 19 states have call predecessors, (34), 15 states have return successors, (19), 16 states have call predecessors, (19), 19 states have call successors, (19) [2021-10-21 19:43:02,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 242 states and 266 transitions. [2021-10-21 19:43:02,264 INFO L78 Accepts]: Start accepts. Automaton has 242 states and 266 transitions. Word has length 38 [2021-10-21 19:43:02,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:43:02,264 INFO L470 AbstractCegarLoop]: Abstraction has 242 states and 266 transitions. [2021-10-21 19:43:02,264 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 4.571428571428571) internal successors, (32), 7 states have internal predecessors, (32), 3 states have call successors, (8), 3 states have call predecessors, (8), 4 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) [2021-10-21 19:43:02,265 INFO L276 IsEmpty]: Start isEmpty. Operand 242 states and 266 transitions. [2021-10-21 19:43:02,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-10-21 19:43:02,266 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:43:02,266 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:43:02,285 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce73d2e0-cd63-4905-8cb0-58b23aa80592/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2021-10-21 19:43:02,479 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce73d2e0-cd63-4905-8cb0-58b23aa80592/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 [2021-10-21 19:43:02,479 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting inspectErr1REQUIRES_VIOLATION === [__list_delErr0REQUIRES_VIOLATION, __list_delErr1REQUIRES_VIOLATION, __list_delErr2REQUIRES_VIOLATION, __list_delErr3REQUIRES_VIOLATION (and 67 more)] === [2021-10-21 19:43:02,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:43:02,480 INFO L82 PathProgramCache]: Analyzing trace with hash 695915252, now seen corresponding path program 1 times [2021-10-21 19:43:02,480 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-21 19:43:02,480 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [639356061] [2021-10-21 19:43:02,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:43:02,481 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-21 19:43:02,481 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce73d2e0-cd63-4905-8cb0-58b23aa80592/bin/uautomizer-j4sWxH34Be/mathsat [2021-10-21 19:43:02,482 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce73d2e0-cd63-4905-8cb0-58b23aa80592/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-21 19:43:02,499 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce73d2e0-cd63-4905-8cb0-58b23aa80592/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2021-10-21 19:43:02,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:43:02,858 INFO L263 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 11 conjunts are in the unsatisfiable core [2021-10-21 19:43:02,860 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:43:03,278 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:43:03,279 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-21 19:43:03,753 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 [2021-10-21 19:43:04,360 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-10-21 19:43:04,361 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 20 [2021-10-21 19:43:04,585 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:43:04,585 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-21 19:43:04,585 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [639356061] [2021-10-21 19:43:04,585 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [639356061] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-21 19:43:04,586 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:43:04,586 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 8] imperfect sequences [] total 14 [2021-10-21 19:43:04,586 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [447020493] [2021-10-21 19:43:04,586 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-10-21 19:43:04,586 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-21 19:43:04,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-10-21 19:43:04,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=168, Unknown=0, NotChecked=0, Total=210 [2021-10-21 19:43:04,587 INFO L87 Difference]: Start difference. First operand 242 states and 266 transitions. Second operand has 15 states, 13 states have (on average 4.0) internal successors, (52), 12 states have internal predecessors, (52), 7 states have call successors, (13), 5 states have call predecessors, (13), 7 states have return successors, (10), 7 states have call predecessors, (10), 5 states have call successors, (10) [2021-10-21 19:43:07,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:43:07,438 INFO L93 Difference]: Finished difference Result 240 states and 264 transitions. [2021-10-21 19:43:07,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-21 19:43:07,439 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 13 states have (on average 4.0) internal successors, (52), 12 states have internal predecessors, (52), 7 states have call successors, (13), 5 states have call predecessors, (13), 7 states have return successors, (10), 7 states have call predecessors, (10), 5 states have call successors, (10) Word has length 38 [2021-10-21 19:43:07,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:43:07,441 INFO L225 Difference]: With dead ends: 240 [2021-10-21 19:43:07,441 INFO L226 Difference]: Without dead ends: 240 [2021-10-21 19:43:07,442 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 61 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 879.0ms TimeCoverageRelationStatistics Valid=106, Invalid=314, Unknown=0, NotChecked=0, Total=420 [2021-10-21 19:43:07,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 240 states. [2021-10-21 19:43:07,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 240 to 240. [2021-10-21 19:43:07,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 240 states, 141 states have (on average 1.49645390070922) internal successors, (211), 206 states have internal predecessors, (211), 34 states have call successors, (34), 19 states have call predecessors, (34), 15 states have return successors, (19), 16 states have call predecessors, (19), 19 states have call successors, (19) [2021-10-21 19:43:07,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240 states to 240 states and 264 transitions. [2021-10-21 19:43:07,451 INFO L78 Accepts]: Start accepts. Automaton has 240 states and 264 transitions. Word has length 38 [2021-10-21 19:43:07,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:43:07,452 INFO L470 AbstractCegarLoop]: Abstraction has 240 states and 264 transitions. [2021-10-21 19:43:07,452 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 13 states have (on average 4.0) internal successors, (52), 12 states have internal predecessors, (52), 7 states have call successors, (13), 5 states have call predecessors, (13), 7 states have return successors, (10), 7 states have call predecessors, (10), 5 states have call successors, (10) [2021-10-21 19:43:07,452 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states and 264 transitions. [2021-10-21 19:43:07,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-10-21 19:43:07,454 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:43:07,454 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:43:07,477 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce73d2e0-cd63-4905-8cb0-58b23aa80592/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2021-10-21 19:43:07,667 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce73d2e0-cd63-4905-8cb0-58b23aa80592/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 [2021-10-21 19:43:07,667 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting __list_addErr0REQUIRES_VIOLATION === [__list_delErr0REQUIRES_VIOLATION, __list_delErr1REQUIRES_VIOLATION, __list_delErr2REQUIRES_VIOLATION, __list_delErr3REQUIRES_VIOLATION (and 67 more)] === [2021-10-21 19:43:07,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:43:07,668 INFO L82 PathProgramCache]: Analyzing trace with hash 1621786009, now seen corresponding path program 1 times [2021-10-21 19:43:07,668 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-21 19:43:07,668 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1908182178] [2021-10-21 19:43:07,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:43:07,668 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-21 19:43:07,668 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce73d2e0-cd63-4905-8cb0-58b23aa80592/bin/uautomizer-j4sWxH34Be/mathsat [2021-10-21 19:43:07,669 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce73d2e0-cd63-4905-8cb0-58b23aa80592/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-21 19:43:07,671 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce73d2e0-cd63-4905-8cb0-58b23aa80592/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2021-10-21 19:43:08,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:43:08,168 INFO L263 TraceCheckSpWp]: Trace formula consists of 254 conjuncts, 42 conjunts are in the unsatisfiable core [2021-10-21 19:43:08,171 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:43:08,256 INFO L354 Elim1Store]: treesize reduction 77, result has 29.4 percent of original size [2021-10-21 19:43:08,256 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 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 [2021-10-21 19:43:08,441 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 [2021-10-21 19:43:08,498 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 10 [2021-10-21 19:43:08,812 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 [2021-10-21 19:43:09,096 INFO L354 Elim1Store]: treesize reduction 29, result has 19.4 percent of original size [2021-10-21 19:43:09,097 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 20 [2021-10-21 19:43:09,269 INFO L354 Elim1Store]: treesize reduction 68, result has 20.0 percent of original size [2021-10-21 19:43:09,270 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 64 treesize of output 45 [2021-10-21 19:43:15,467 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-21 19:43:15,482 INFO L354 Elim1Store]: treesize reduction 18, result has 30.8 percent of original size [2021-10-21 19:43:15,482 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 34 treesize of output 33 [2021-10-21 19:43:17,871 INFO L354 Elim1Store]: treesize reduction 42, result has 44.0 percent of original size [2021-10-21 19:43:17,871 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 40 treesize of output 61 [2021-10-21 19:43:18,344 INFO L354 Elim1Store]: treesize reduction 809, result has 3.1 percent of original size [2021-10-21 19:43:18,344 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 9 case distinctions, treesize of input 127 treesize of output 67 [2021-10-21 19:43:18,897 INFO L354 Elim1Store]: treesize reduction 40, result has 2.4 percent of original size [2021-10-21 19:43:18,897 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 114 treesize of output 73 [2021-10-21 19:43:19,457 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 3 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:43:19,457 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-21 19:43:34,275 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_gl_insert_~node~1.base_42 (_ BitVec 32)) (v_DerPreprocessor_13 (_ BitVec 32)) (v_DerPreprocessor_14 (_ BitVec 32)) (gl_insert_~node~1.offset (_ BitVec 32)) (v_DerPreprocessor_15 (_ BitVec 32)) (v_DerPreprocessor_16 (_ BitVec 32))) (or (= (_ bv0 1) (bvadd (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (select (store |c_#valid| v_gl_insert_~node~1.base_42 (_ bv1 1)) (select (select (store |c_#memory_$Pointer$.base| v_gl_insert_~node~1.base_42 (store (store (store (store (select |c_#memory_$Pointer$.base| v_gl_insert_~node~1.base_42) gl_insert_~node~1.offset v_DerPreprocessor_13) (bvadd gl_insert_~node~1.offset (_ bv1 32)) v_DerPreprocessor_14) (bvadd (_ bv2 32) gl_insert_~node~1.offset) v_DerPreprocessor_15) (bvadd gl_insert_~node~1.offset (_ bv3 32)) v_DerPreprocessor_16)) |c_~#gl_list~0.base|) |c_~#gl_list~0.offset|))))))))))))) (_ bv1 1))) (not (= (_ bv0 1) (select |c_#valid| v_gl_insert_~node~1.base_42))))) is different from false [2021-10-21 19:43:34,922 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-21 19:43:34,922 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1908182178] [2021-10-21 19:43:34,923 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: BigInteger out of long range [2021-10-21 19:43:34,923 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [934085629] [2021-10-21 19:43:34,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:43:34,923 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-21 19:43:34,924 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce73d2e0-cd63-4905-8cb0-58b23aa80592/bin/uautomizer-j4sWxH34Be/cvc4 [2021-10-21 19:43:34,935 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce73d2e0-cd63-4905-8cb0-58b23aa80592/bin/uautomizer-j4sWxH34Be/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-21 19:43:34,935 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce73d2e0-cd63-4905-8cb0-58b23aa80592/bin/uautomizer-j4sWxH34Be/cvc4 --incremental --print-success --lang smt (17)] Waiting until timeout for monitored process [2021-10-21 19:43:35,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:43:35,682 INFO L263 TraceCheckSpWp]: Trace formula consists of 254 conjuncts, 39 conjunts are in the unsatisfiable core [2021-10-21 19:43:35,683 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:43:35,833 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2021-10-21 19:43:35,933 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 [2021-10-21 19:43:36,872 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 [2021-10-21 19:43:37,584 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-21 19:43:37,585 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 [2021-10-21 19:43:37,861 INFO L354 Elim1Store]: treesize reduction 68, result has 20.0 percent of original size [2021-10-21 19:43:37,861 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 63 treesize of output 44 [2021-10-21 19:43:38,550 INFO L354 Elim1Store]: treesize reduction 27, result has 43.8 percent of original size [2021-10-21 19:43:38,550 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 29 treesize of output 40 [2021-10-21 19:43:39,216 INFO L354 Elim1Store]: treesize reduction 809, result has 3.1 percent of original size [2021-10-21 19:43:39,216 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 9 case distinctions, treesize of input 129 treesize of output 69 [2021-10-21 19:43:40,198 INFO L354 Elim1Store]: treesize reduction 40, result has 2.4 percent of original size [2021-10-21 19:43:40,198 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 98 treesize of output 57 [2021-10-21 19:43:41,068 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 2 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:43:41,068 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-21 19:43:53,741 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-10-21 19:43:53,741 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 15182 treesize of output 14780 [2021-10-21 19:43:54,499 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: BigInteger out of long range [2021-10-21 19:43:54,500 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [155973061] [2021-10-21 19:43:54,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:43:54,501 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:43:54,501 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce73d2e0-cd63-4905-8cb0-58b23aa80592/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:43:54,506 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce73d2e0-cd63-4905-8cb0-58b23aa80592/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:43:54,508 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce73d2e0-cd63-4905-8cb0-58b23aa80592/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2021-10-21 19:43:55,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:43:55,237 INFO L263 TraceCheckSpWp]: Trace formula consists of 254 conjuncts, 41 conjunts are in the unsatisfiable core [2021-10-21 19:43:55,239 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:43:55,367 INFO L354 Elim1Store]: treesize reduction 77, result has 29.4 percent of original size [2021-10-21 19:43:55,367 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 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 [2021-10-21 19:43:55,583 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 7 [2021-10-21 19:43:55,628 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 10 [2021-10-21 19:43:55,829 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 [2021-10-21 19:43:56,427 INFO L354 Elim1Store]: treesize reduction 29, result has 19.4 percent of original size [2021-10-21 19:43:56,428 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 20 [2021-10-21 19:43:56,709 INFO L354 Elim1Store]: treesize reduction 68, result has 20.0 percent of original size [2021-10-21 19:43:56,709 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 64 treesize of output 45 [2021-10-21 19:44:07,066 INFO L354 Elim1Store]: treesize reduction 23, result has 42.5 percent of original size [2021-10-21 19:44:07,067 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 34 treesize of output 41 [2021-10-21 19:44:09,390 INFO L354 Elim1Store]: treesize reduction 42, result has 44.0 percent of original size [2021-10-21 19:44:09,390 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 37 treesize of output 58 [2021-10-21 19:44:09,857 INFO L354 Elim1Store]: treesize reduction 809, result has 3.1 percent of original size [2021-10-21 19:44:09,857 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 9 case distinctions, treesize of input 127 treesize of output 67 [2021-10-21 19:44:10,129 INFO L354 Elim1Store]: treesize reduction 40, result has 2.4 percent of original size [2021-10-21 19:44:10,129 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 114 treesize of output 73 [2021-10-21 19:44:10,365 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 3 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:44:10,365 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-21 19:44:20,451 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_gl_insert_~node~1.base_52 (_ BitVec 32)) (v_DerPreprocessor_13 (_ BitVec 32)) (v_DerPreprocessor_14 (_ BitVec 32)) (gl_insert_~node~1.offset (_ BitVec 32)) (v_DerPreprocessor_15 (_ BitVec 32)) (v_DerPreprocessor_16 (_ BitVec 32))) (or (not (= (_ bv0 1) (bvneg (select |c_#valid| v_gl_insert_~node~1.base_52)))) (= (_ bv0 1) (bvadd (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (select (store |c_#valid| v_gl_insert_~node~1.base_52 (_ bv1 1)) (select (select (store |c_#memory_$Pointer$.base| v_gl_insert_~node~1.base_52 (store (store (store (store (select |c_#memory_$Pointer$.base| v_gl_insert_~node~1.base_52) gl_insert_~node~1.offset v_DerPreprocessor_13) (bvadd gl_insert_~node~1.offset (_ bv1 32)) v_DerPreprocessor_14) (bvadd (_ bv2 32) gl_insert_~node~1.offset) v_DerPreprocessor_15) (bvadd gl_insert_~node~1.offset (_ bv3 32)) v_DerPreprocessor_16)) |c_~#gl_list~0.base|) |c_~#gl_list~0.offset|))))))))))))))) (_ bv1 1))))) is different from false [2021-10-21 19:44:21,070 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: BigInteger out of long range [2021-10-21 19:44:21,071 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:44:21,071 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [] total 0 [2021-10-21 19:44:21,071 ERROR L172 FreeRefinementEngine]: Strategy WOLF failed to provide any proof altough trace is infeasible [2021-10-21 19:44:21,071 INFO L626 BasicCegarLoop]: Counterexample might be feasible [2021-10-21 19:44:21,076 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __list_addErr0REQUIRES_VIOLATION [2021-10-21 19:44:21,078 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __list_delErr0REQUIRES_VIOLATION [2021-10-21 19:44:21,078 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __list_delErr1REQUIRES_VIOLATION [2021-10-21 19:44:21,078 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __list_delErr2REQUIRES_VIOLATION [2021-10-21 19:44:21,078 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __list_delErr3REQUIRES_VIOLATION [2021-10-21 19:44:21,078 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location gl_insertErr0REQUIRES_VIOLATION [2021-10-21 19:44:21,079 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location gl_insertErr1REQUIRES_VIOLATION [2021-10-21 19:44:21,079 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location gl_insertErr2REQUIRES_VIOLATION [2021-10-21 19:44:21,079 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location gl_insertErr3REQUIRES_VIOLATION [2021-10-21 19:44:21,079 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location gl_insertErr4REQUIRES_VIOLATION [2021-10-21 19:44:21,079 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location gl_insertErr5REQUIRES_VIOLATION [2021-10-21 19:44:21,080 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location gl_sort_passErr0REQUIRES_VIOLATION [2021-10-21 19:44:21,080 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location gl_sort_passErr1REQUIRES_VIOLATION [2021-10-21 19:44:21,080 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location gl_sort_passErr2REQUIRES_VIOLATION [2021-10-21 19:44:21,080 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location gl_sort_passErr3REQUIRES_VIOLATION [2021-10-21 19:44:21,080 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location inspectErr0REQUIRES_VIOLATION [2021-10-21 19:44:21,081 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location inspectErr1REQUIRES_VIOLATION [2021-10-21 19:44:21,081 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location inspectErr2REQUIRES_VIOLATION [2021-10-21 19:44:21,081 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location inspectErr3REQUIRES_VIOLATION [2021-10-21 19:44:21,081 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location inspectErr4REQUIRES_VIOLATION [2021-10-21 19:44:21,081 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location inspectErr5REQUIRES_VIOLATION [2021-10-21 19:44:21,081 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location inspectErr6REQUIRES_VIOLATION [2021-10-21 19:44:21,081 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location inspectErr7REQUIRES_VIOLATION [2021-10-21 19:44:21,082 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location inspectErr8REQUIRES_VIOLATION [2021-10-21 19:44:21,082 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location inspectErr9REQUIRES_VIOLATION [2021-10-21 19:44:21,082 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location inspectErr10REQUIRES_VIOLATION [2021-10-21 19:44:21,082 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location inspectErr11REQUIRES_VIOLATION [2021-10-21 19:44:21,082 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location inspectErr12REQUIRES_VIOLATION [2021-10-21 19:44:21,082 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location inspectErr13REQUIRES_VIOLATION [2021-10-21 19:44:21,082 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location inspectErr14REQUIRES_VIOLATION [2021-10-21 19:44:21,082 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location inspectErr15REQUIRES_VIOLATION [2021-10-21 19:44:21,083 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location inspectErr16REQUIRES_VIOLATION [2021-10-21 19:44:21,083 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location inspectErr17REQUIRES_VIOLATION [2021-10-21 19:44:21,083 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location inspectErr18REQUIRES_VIOLATION [2021-10-21 19:44:21,083 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location inspectErr19REQUIRES_VIOLATION [2021-10-21 19:44:21,083 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location inspectErr20REQUIRES_VIOLATION [2021-10-21 19:44:21,083 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location inspectErr21REQUIRES_VIOLATION [2021-10-21 19:44:21,083 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location inspectErr22REQUIRES_VIOLATION [2021-10-21 19:44:21,083 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location inspectErr23REQUIRES_VIOLATION [2021-10-21 19:44:21,083 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location inspectErr24REQUIRES_VIOLATION [2021-10-21 19:44:21,083 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location inspectErr25REQUIRES_VIOLATION [2021-10-21 19:44:21,083 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location inspectErr26REQUIRES_VIOLATION [2021-10-21 19:44:21,084 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location inspectErr27REQUIRES_VIOLATION [2021-10-21 19:44:21,084 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location inspectErr28REQUIRES_VIOLATION [2021-10-21 19:44:21,084 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location inspectErr29REQUIRES_VIOLATION [2021-10-21 19:44:21,084 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location val_from_nodeErr0REQUIRES_VIOLATION [2021-10-21 19:44:21,084 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location val_from_nodeErr1REQUIRES_VIOLATION [2021-10-21 19:44:21,084 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location failErr0ASSERT_VIOLATIONMEMORY_LEAK [2021-10-21 19:44:21,084 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location gl_destroyErr0REQUIRES_VIOLATION [2021-10-21 19:44:21,084 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location gl_destroyErr1REQUIRES_VIOLATION [2021-10-21 19:44:21,085 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location gl_destroyErr2REQUIRES_VIOLATION [2021-10-21 19:44:21,085 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location gl_destroyErr3REQUIRES_VIOLATION [2021-10-21 19:44:21,085 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location gl_destroyErr4REQUIRES_VIOLATION [2021-10-21 19:44:21,085 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location gl_destroyErr5REQUIRES_VIOLATION [2021-10-21 19:44:21,085 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location gl_destroyErr6ASSERT_VIOLATIONMEMORY_FREE [2021-10-21 19:44:21,086 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location gl_destroyErr7ASSERT_VIOLATIONMEMORY_FREE [2021-10-21 19:44:21,086 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location gl_destroyErr8ASSERT_VIOLATIONMEMORY_FREE [2021-10-21 19:44:21,086 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __list_addErr1REQUIRES_VIOLATION [2021-10-21 19:44:21,086 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __list_addErr2REQUIRES_VIOLATION [2021-10-21 19:44:21,086 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __list_addErr3REQUIRES_VIOLATION [2021-10-21 19:44:21,087 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __list_addErr4REQUIRES_VIOLATION [2021-10-21 19:44:21,087 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __list_addErr5REQUIRES_VIOLATION [2021-10-21 19:44:21,087 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __list_addErr6REQUIRES_VIOLATION [2021-10-21 19:44:21,087 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __list_addErr7REQUIRES_VIOLATION [2021-10-21 19:44:21,087 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr0ENSURES_VIOLATIONMEMORY_LEAK [2021-10-21 19:44:21,087 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location list_addErr0REQUIRES_VIOLATION [2021-10-21 19:44:21,088 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location list_addErr1REQUIRES_VIOLATION [2021-10-21 19:44:21,088 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location list_moveErr0REQUIRES_VIOLATION [2021-10-21 19:44:21,088 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location list_moveErr1REQUIRES_VIOLATION [2021-10-21 19:44:21,088 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location list_moveErr2REQUIRES_VIOLATION [2021-10-21 19:44:21,088 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location list_moveErr3REQUIRES_VIOLATION [2021-10-21 19:44:21,099 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce73d2e0-cd63-4905-8cb0-58b23aa80592/bin/uautomizer-j4sWxH34Be/cvc4 --incremental --print-success --lang smt (17)] Forceful destruction successful, exit code 0 [2021-10-21 19:44:21,316 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce73d2e0-cd63-4905-8cb0-58b23aa80592/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2021-10-21 19:44:21,505 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce73d2e0-cd63-4905-8cb0-58b23aa80592/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2021-10-21 19:44:21,693 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce73d2e0-cd63-4905-8cb0-58b23aa80592/bin/uautomizer-j4sWxH34Be/cvc4 --incremental --print-success --lang smt,18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce73d2e0-cd63-4905-8cb0-58b23aa80592/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true,16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce73d2e0-cd63-4905-8cb0-58b23aa80592/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 [2021-10-21 19:44:21,698 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-21 19:44:21,710 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.10 07:44:21 BoogieIcfgContainer [2021-10-21 19:44:21,710 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-21 19:44:21,710 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-21 19:44:21,711 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-21 19:44:21,711 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-21 19:44:21,711 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:41:07" (3/4) ... [2021-10-21 19:44:21,714 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-21 19:44:21,715 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-21 19:44:21,718 INFO L168 Benchmark]: Toolchain (without parser) took 196400.27 ms. Allocated memory was 60.8 MB in the beginning and 117.4 MB in the end (delta: 56.6 MB). Free memory was 39.0 MB in the beginning and 71.2 MB in the end (delta: -32.2 MB). Peak memory consumption was 25.0 MB. Max. memory is 16.1 GB. [2021-10-21 19:44:21,718 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 60.8 MB. Free memory is still 42.5 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 19:44:21,718 INFO L168 Benchmark]: CACSL2BoogieTranslator took 869.00 ms. Allocated memory was 60.8 MB in the beginning and 90.2 MB in the end (delta: 29.4 MB). Free memory was 38.9 MB in the beginning and 69.2 MB in the end (delta: -30.3 MB). Peak memory consumption was 21.4 MB. Max. memory is 16.1 GB. [2021-10-21 19:44:21,718 INFO L168 Benchmark]: Boogie Preprocessor took 110.60 ms. Allocated memory is still 90.2 MB. Free memory was 69.2 MB in the beginning and 64.3 MB in the end (delta: 4.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-21 19:44:21,719 INFO L168 Benchmark]: RCFGBuilder took 1552.44 ms. Allocated memory is still 90.2 MB. Free memory was 64.0 MB in the beginning and 40.7 MB in the end (delta: 23.2 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.1 GB. [2021-10-21 19:44:21,719 INFO L168 Benchmark]: TraceAbstraction took 193857.57 ms. Allocated memory was 90.2 MB in the beginning and 117.4 MB in the end (delta: 27.3 MB). Free memory was 40.2 MB in the beginning and 71.2 MB in the end (delta: -31.0 MB). Peak memory consumption was 45.5 MB. Max. memory is 16.1 GB. [2021-10-21 19:44:21,719 INFO L168 Benchmark]: Witness Printer took 4.26 ms. Allocated memory is still 117.4 MB. Free memory is still 71.2 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 19:44:21,722 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 60.8 MB. Free memory is still 42.5 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 869.00 ms. Allocated memory was 60.8 MB in the beginning and 90.2 MB in the end (delta: 29.4 MB). Free memory was 38.9 MB in the beginning and 69.2 MB in the end (delta: -30.3 MB). Peak memory consumption was 21.4 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 110.60 ms. Allocated memory is still 90.2 MB. Free memory was 69.2 MB in the beginning and 64.3 MB in the end (delta: 4.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1552.44 ms. Allocated memory is still 90.2 MB. Free memory was 64.0 MB in the beginning and 40.7 MB in the end (delta: 23.2 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.1 GB. * TraceAbstraction took 193857.57 ms. Allocated memory was 90.2 MB in the beginning and 117.4 MB in the end (delta: 27.3 MB). Free memory was 40.2 MB in the beginning and 71.2 MB in the end (delta: -31.0 MB). Peak memory consumption was 45.5 MB. Max. memory is 16.1 GB. * Witness Printer took 4.26 ms. Allocated memory is still 117.4 MB. Free memory is still 71.2 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, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 878]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: unable to decide satisfiability of path constraint. Possible FailurePath: [L850] struct list_head gl_list = { &(gl_list), &(gl_list) }; [L949] CALL gl_read() [L909] CALL gl_insert(__VERIFIER_nondet_int()) [L899] struct node *node = malloc(sizeof *node); [L900] COND FALSE !(!node) [L902] node->value = value [L903] CALL list_add(&node->linkage, &gl_list) [L890] EXPR head->next [L890] CALL __list_add(new, head, head->next) [L878] next->prev = new [L879] new->next = next [L880] new->prev = prev [L881] prev->next = new [L890] RET __list_add(new, head, head->next) [L903] RET list_add(&node->linkage, &gl_list) [L904] (&node->nested)->next = (&node->nested) [L904] (&node->nested)->prev = (&node->nested) [L909] RET gl_insert(__VERIFIER_nondet_int()) [L911] COND TRUE __VERIFIER_nondet_int() [L909] CALL gl_insert(__VERIFIER_nondet_int()) [L899] struct node *node = malloc(sizeof *node); [L900] COND FALSE !(!node) [L902] node->value = value [L903] CALL list_add(&node->linkage, &gl_list) [L890] EXPR head->next [L890] CALL __list_add(new, head, head->next) [L878] next->prev = new - UnprovableResult [Line: 885]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 885]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 886]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 886]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 902]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 902]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 904]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 904]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 904]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 904]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 928]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 928]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 930]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 930]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 854]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 854]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 855]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 855]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 856]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 856]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 858]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 858]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 859]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 859]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 862]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 862]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 863]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 863]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 864]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 864]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 865]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 865]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 869]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 869]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 869]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 869]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 870]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 870]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 870]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 870]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 871]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 871]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 871]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 871]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 923]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 923]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 840]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 916]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 916]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 917]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 917]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 917]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 917]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 918]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 918]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 918]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 878]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 879]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 879]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 880]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 880]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 881]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 881]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 947]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 890]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 890]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 894]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 894]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 894]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 894]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 19 procedures, 255 locations, 71 error locations. Started 1 CEGAR loops. OverallTime: 193767.4ms, OverallIterations: 15, TraceHistogramMax: 2, EmptinessCheckTime: 37.8ms, AutomataDifference: 33025.1ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 36.7ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 2946 SDtfs, 3880 SDslu, 9732 SDs, 0 SdLazy, 5147 SolverSat, 621 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 22913.5ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 588 GetRequests, 404 SyntacticMatches, 35 SemanticMatches, 149 ConstructedPredicates, 7 IntricatePredicates, 0 DeprecatedPredicates, 253 ImplicationChecksByTransitivity, 76725.2ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=250occurred in iteration=8, InterpolantAutomatonStates: 103, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 204.8ms AutomataMinimizationTime, 14 MinimizatonAttempts, 68 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 202.6ms SsaConstructionTime, 840.5ms SatisfiabilityAnalysisTime, 79344.9ms InterpolantComputationTime, 274 NumberOfCodeBlocks, 274 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 520 ConstructedInterpolants, 51 QuantifiedInterpolants, 5449 SizeOfPredicates, 118 NumberOfNonLiveVariables, 1994 ConjunctsInSsa, 166 ConjunctsInUnsatCore, 28 InterpolantComputations, 28 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-10-21 19:44:21,778 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce73d2e0-cd63-4905-8cb0-58b23aa80592/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...