./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/list-ext3-properties/sll_shallow_copy-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 53f42b1a Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c76d7cd6-68ac-4323-b733-daba52189cc7/bin/uautomizer-DQz5hQGWxF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c76d7cd6-68ac-4323-b733-daba52189cc7/bin/uautomizer-DQz5hQGWxF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c76d7cd6-68ac-4323-b733-daba52189cc7/bin/uautomizer-DQz5hQGWxF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c76d7cd6-68ac-4323-b733-daba52189cc7/bin/uautomizer-DQz5hQGWxF/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/list-ext3-properties/sll_shallow_copy-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c76d7cd6-68ac-4323-b733-daba52189cc7/bin/uautomizer-DQz5hQGWxF/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c76d7cd6-68ac-4323-b733-daba52189cc7/bin/uautomizer-DQz5hQGWxF --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 b85925b4cd4a90c7937c0d7134475db048f88e78d985bef01499b1b0477a4b80 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-20 06:23:57,283 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-20 06:23:57,286 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-20 06:23:57,331 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-20 06:23:57,332 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-20 06:23:57,334 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-20 06:23:57,336 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-20 06:23:57,340 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-20 06:23:57,343 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-20 06:23:57,345 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-20 06:23:57,347 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-20 06:23:57,349 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-20 06:23:57,350 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-20 06:23:57,352 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-20 06:23:57,354 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-20 06:23:57,356 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-20 06:23:57,358 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-20 06:23:57,359 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-20 06:23:57,362 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-20 06:23:57,366 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-20 06:23:57,369 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-20 06:23:57,371 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-20 06:23:57,373 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-20 06:23:57,375 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-20 06:23:57,380 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-20 06:23:57,380 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-20 06:23:57,381 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-20 06:23:57,383 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-20 06:23:57,384 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-20 06:23:57,385 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-20 06:23:57,386 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-20 06:23:57,387 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-20 06:23:57,389 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-20 06:23:57,390 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-20 06:23:57,392 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-20 06:23:57,393 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-20 06:23:57,394 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-20 06:23:57,395 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-20 06:23:57,395 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-20 06:23:57,397 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-20 06:23:57,398 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-20 06:23:57,400 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c76d7cd6-68ac-4323-b733-daba52189cc7/bin/uautomizer-DQz5hQGWxF/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2021-11-20 06:23:57,434 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-20 06:23:57,435 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-20 06:23:57,435 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-20 06:23:57,436 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-20 06:23:57,437 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-20 06:23:57,437 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-20 06:23:57,438 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-20 06:23:57,438 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-20 06:23:57,439 INFO L138 SettingsManager]: * Use SBE=true [2021-11-20 06:23:57,439 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-20 06:23:57,439 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-20 06:23:57,440 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-20 06:23:57,440 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-20 06:23:57,440 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-20 06:23:57,441 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-20 06:23:57,441 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-11-20 06:23:57,441 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-11-20 06:23:57,442 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-11-20 06:23:57,442 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-20 06:23:57,442 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-20 06:23:57,443 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-20 06:23:57,443 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-20 06:23:57,443 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-20 06:23:57,444 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-20 06:23:57,444 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-20 06:23:57,444 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 06:23:57,445 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-20 06:23:57,445 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-20 06:23:57,445 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-20 06:23:57,446 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-20 06:23:57,446 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-20 06:23:57,446 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_c76d7cd6-68ac-4323-b733-daba52189cc7/bin/uautomizer-DQz5hQGWxF/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c76d7cd6-68ac-4323-b733-daba52189cc7/bin/uautomizer-DQz5hQGWxF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b85925b4cd4a90c7937c0d7134475db048f88e78d985bef01499b1b0477a4b80 [2021-11-20 06:23:57,780 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-20 06:23:57,830 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-20 06:23:57,835 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-20 06:23:57,836 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-20 06:23:57,837 INFO L275 PluginConnector]: CDTParser initialized [2021-11-20 06:23:57,839 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c76d7cd6-68ac-4323-b733-daba52189cc7/bin/uautomizer-DQz5hQGWxF/../../sv-benchmarks/c/list-ext3-properties/sll_shallow_copy-1.i [2021-11-20 06:23:57,933 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c76d7cd6-68ac-4323-b733-daba52189cc7/bin/uautomizer-DQz5hQGWxF/data/72d4b2987/e6c223bc6474438b80404cbe5cd71cf1/FLAG2851805b5 [2021-11-20 06:23:58,684 INFO L306 CDTParser]: Found 1 translation units. [2021-11-20 06:23:58,684 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c76d7cd6-68ac-4323-b733-daba52189cc7/sv-benchmarks/c/list-ext3-properties/sll_shallow_copy-1.i [2021-11-20 06:23:58,716 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c76d7cd6-68ac-4323-b733-daba52189cc7/bin/uautomizer-DQz5hQGWxF/data/72d4b2987/e6c223bc6474438b80404cbe5cd71cf1/FLAG2851805b5 [2021-11-20 06:23:58,935 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c76d7cd6-68ac-4323-b733-daba52189cc7/bin/uautomizer-DQz5hQGWxF/data/72d4b2987/e6c223bc6474438b80404cbe5cd71cf1 [2021-11-20 06:23:58,939 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-20 06:23:58,941 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-20 06:23:58,943 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-20 06:23:58,943 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-20 06:23:58,949 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-20 06:23:58,951 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 06:23:58" (1/1) ... [2021-11-20 06:23:58,954 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5839ca22 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:23:58, skipping insertion in model container [2021-11-20 06:23:58,955 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 06:23:58" (1/1) ... [2021-11-20 06:23:58,964 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-20 06:23:59,008 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-20 06:23:59,509 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 06:23:59,523 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2021-11-20 06:23:59,525 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@263a8f89 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:23:59, skipping insertion in model container [2021-11-20 06:23:59,525 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-20 06:23:59,526 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-20 06:23:59,529 INFO L158 Benchmark]: Toolchain (without parser) took 586.65ms. Allocated memory is still 115.3MB. Free memory was 87.2MB in the beginning and 88.7MB in the end (delta: -1.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-20 06:23:59,531 INFO L158 Benchmark]: CDTParser took 0.42ms. Allocated memory is still 115.3MB. Free memory is still 70.8MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-20 06:23:59,533 INFO L158 Benchmark]: CACSL2BoogieTranslator took 582.81ms. Allocated memory is still 115.3MB. Free memory was 87.0MB in the beginning and 89.0MB in the end (delta: -2.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-20 06:23:59,537 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.42ms. Allocated memory is still 115.3MB. Free memory is still 70.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 582.81ms. Allocated memory is still 115.3MB. Free memory was 87.0MB in the beginning and 89.0MB in the end (delta: -2.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 562]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c76d7cd6-68ac-4323-b733-daba52189cc7/bin/uautomizer-DQz5hQGWxF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c76d7cd6-68ac-4323-b733-daba52189cc7/bin/uautomizer-DQz5hQGWxF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c76d7cd6-68ac-4323-b733-daba52189cc7/bin/uautomizer-DQz5hQGWxF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c76d7cd6-68ac-4323-b733-daba52189cc7/bin/uautomizer-DQz5hQGWxF/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/list-ext3-properties/sll_shallow_copy-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c76d7cd6-68ac-4323-b733-daba52189cc7/bin/uautomizer-DQz5hQGWxF/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c76d7cd6-68ac-4323-b733-daba52189cc7/bin/uautomizer-DQz5hQGWxF --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 b85925b4cd4a90c7937c0d7134475db048f88e78d985bef01499b1b0477a4b80 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-20 06:24:02,462 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-20 06:24:02,465 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-20 06:24:02,521 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-20 06:24:02,522 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-20 06:24:02,527 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-20 06:24:02,531 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-20 06:24:02,540 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-20 06:24:02,545 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-20 06:24:02,552 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-20 06:24:02,554 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-20 06:24:02,557 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-20 06:24:02,558 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-20 06:24:02,561 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-20 06:24:02,565 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-20 06:24:02,568 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-20 06:24:02,571 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-20 06:24:02,572 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-20 06:24:02,578 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-20 06:24:02,589 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-20 06:24:02,591 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-20 06:24:02,593 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-20 06:24:02,598 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-20 06:24:02,601 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-20 06:24:02,612 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-20 06:24:02,613 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-20 06:24:02,614 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-20 06:24:02,616 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-20 06:24:02,617 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-20 06:24:02,619 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-20 06:24:02,619 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-20 06:24:02,620 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-20 06:24:02,623 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-20 06:24:02,624 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-20 06:24:02,626 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-20 06:24:02,627 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-20 06:24:02,628 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-20 06:24:02,629 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-20 06:24:02,629 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-20 06:24:02,632 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-20 06:24:02,633 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-20 06:24:02,640 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c76d7cd6-68ac-4323-b733-daba52189cc7/bin/uautomizer-DQz5hQGWxF/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2021-11-20 06:24:02,692 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-20 06:24:02,693 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-20 06:24:02,693 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-20 06:24:02,693 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-20 06:24:02,694 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-20 06:24:02,695 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-20 06:24:02,696 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-20 06:24:02,696 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-20 06:24:02,696 INFO L138 SettingsManager]: * Use SBE=true [2021-11-20 06:24:02,696 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-20 06:24:02,697 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-20 06:24:02,697 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-20 06:24:02,697 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-20 06:24:02,697 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-20 06:24:02,698 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-20 06:24:02,698 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-11-20 06:24:02,700 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-11-20 06:24:02,700 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-11-20 06:24:02,700 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-20 06:24:02,701 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-20 06:24:02,701 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-20 06:24:02,701 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-20 06:24:02,701 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-20 06:24:02,702 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-20 06:24:02,702 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-20 06:24:02,703 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-20 06:24:02,703 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-20 06:24:02,703 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 06:24:02,704 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-20 06:24:02,705 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-20 06:24:02,705 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-11-20 06:24:02,705 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-20 06:24:02,706 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-20 06:24:02,706 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-20 06:24:02,706 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_c76d7cd6-68ac-4323-b733-daba52189cc7/bin/uautomizer-DQz5hQGWxF/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c76d7cd6-68ac-4323-b733-daba52189cc7/bin/uautomizer-DQz5hQGWxF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b85925b4cd4a90c7937c0d7134475db048f88e78d985bef01499b1b0477a4b80 [2021-11-20 06:24:03,211 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-20 06:24:03,243 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-20 06:24:03,247 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-20 06:24:03,249 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-20 06:24:03,250 INFO L275 PluginConnector]: CDTParser initialized [2021-11-20 06:24:03,252 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c76d7cd6-68ac-4323-b733-daba52189cc7/bin/uautomizer-DQz5hQGWxF/../../sv-benchmarks/c/list-ext3-properties/sll_shallow_copy-1.i [2021-11-20 06:24:03,353 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c76d7cd6-68ac-4323-b733-daba52189cc7/bin/uautomizer-DQz5hQGWxF/data/82b5d4624/a850810fe44a4b6a90f93d4d93e50186/FLAG9d3ddf705 [2021-11-20 06:24:04,086 INFO L306 CDTParser]: Found 1 translation units. [2021-11-20 06:24:04,087 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c76d7cd6-68ac-4323-b733-daba52189cc7/sv-benchmarks/c/list-ext3-properties/sll_shallow_copy-1.i [2021-11-20 06:24:04,103 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c76d7cd6-68ac-4323-b733-daba52189cc7/bin/uautomizer-DQz5hQGWxF/data/82b5d4624/a850810fe44a4b6a90f93d4d93e50186/FLAG9d3ddf705 [2021-11-20 06:24:04,376 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c76d7cd6-68ac-4323-b733-daba52189cc7/bin/uautomizer-DQz5hQGWxF/data/82b5d4624/a850810fe44a4b6a90f93d4d93e50186 [2021-11-20 06:24:04,380 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-20 06:24:04,382 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-20 06:24:04,385 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-20 06:24:04,385 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-20 06:24:04,390 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-20 06:24:04,392 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 06:24:04" (1/1) ... [2021-11-20 06:24:04,394 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@52467e89 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:24:04, skipping insertion in model container [2021-11-20 06:24:04,394 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 06:24:04" (1/1) ... [2021-11-20 06:24:04,404 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-20 06:24:04,453 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-20 06:24:04,836 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 06:24:04,851 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-20 06:24:04,871 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-20 06:24:04,936 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 06:24:04,939 INFO L203 MainTranslator]: Completed pre-run [2021-11-20 06:24:05,013 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 06:24:05,063 INFO L208 MainTranslator]: Completed translation [2021-11-20 06:24:05,064 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:24:05 WrapperNode [2021-11-20 06:24:05,064 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-20 06:24:05,066 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-20 06:24:05,066 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-20 06:24:05,066 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-20 06:24:05,076 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:24:05" (1/1) ... [2021-11-20 06:24:05,099 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:24:05" (1/1) ... [2021-11-20 06:24:05,125 INFO L137 Inliner]: procedures = 115, calls = 12, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 38 [2021-11-20 06:24:05,126 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-20 06:24:05,127 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-20 06:24:05,127 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-20 06:24:05,128 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-20 06:24:05,139 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:24:05" (1/1) ... [2021-11-20 06:24:05,139 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:24:05" (1/1) ... [2021-11-20 06:24:05,144 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:24:05" (1/1) ... [2021-11-20 06:24:05,144 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:24:05" (1/1) ... [2021-11-20 06:24:05,155 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:24:05" (1/1) ... [2021-11-20 06:24:05,157 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:24:05" (1/1) ... [2021-11-20 06:24:05,159 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:24:05" (1/1) ... [2021-11-20 06:24:05,163 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-20 06:24:05,164 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-20 06:24:05,165 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-20 06:24:05,165 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-20 06:24:05,166 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:24:05" (1/1) ... [2021-11-20 06:24:05,175 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 06:24:05,214 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c76d7cd6-68ac-4323-b733-daba52189cc7/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:24:05,233 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c76d7cd6-68ac-4323-b733-daba52189cc7/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-20 06:24:05,253 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c76d7cd6-68ac-4323-b733-daba52189cc7/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-20 06:24:05,304 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_node [2021-11-20 06:24:05,304 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_node [2021-11-20 06:24:05,304 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-20 06:24:05,305 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-20 06:24:05,305 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-20 06:24:05,306 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-20 06:24:05,306 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-20 06:24:05,312 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-20 06:24:05,492 INFO L236 CfgBuilder]: Building ICFG [2021-11-20 06:24:05,495 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-20 06:24:05,787 INFO L277 CfgBuilder]: Performing block encoding [2021-11-20 06:24:05,796 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-20 06:24:05,797 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-20 06:24:05,815 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 06:24:05 BoogieIcfgContainer [2021-11-20 06:24:05,816 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-20 06:24:05,818 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-20 06:24:05,818 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-20 06:24:05,822 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-20 06:24:05,823 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 06:24:04" (1/3) ... [2021-11-20 06:24:05,824 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2fe605ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 06:24:05, skipping insertion in model container [2021-11-20 06:24:05,824 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:24:05" (2/3) ... [2021-11-20 06:24:05,825 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2fe605ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 06:24:05, skipping insertion in model container [2021-11-20 06:24:05,825 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 06:24:05" (3/3) ... [2021-11-20 06:24:05,832 INFO L111 eAbstractionObserver]: Analyzing ICFG sll_shallow_copy-1.i [2021-11-20 06:24:05,840 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-20 06:24:05,840 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 15 error locations. [2021-11-20 06:24:05,917 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-20 06:24:05,927 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-20 06:24:05,927 INFO L340 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2021-11-20 06:24:05,948 INFO L276 IsEmpty]: Start isEmpty. Operand has 42 states, 23 states have (on average 1.6956521739130435) internal successors, (39), 38 states have internal predecessors, (39), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-20 06:24:05,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-11-20 06:24:05,961 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:24:05,962 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:24:05,962 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 11 more)] === [2021-11-20 06:24:05,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:24:05,970 INFO L85 PathProgramCache]: Analyzing trace with hash -900798970, now seen corresponding path program 1 times [2021-11-20 06:24:05,986 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-20 06:24:05,987 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1092976587] [2021-11-20 06:24:05,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:24:05,988 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-20 06:24:05,989 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c76d7cd6-68ac-4323-b733-daba52189cc7/bin/uautomizer-DQz5hQGWxF/mathsat [2021-11-20 06:24:05,994 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c76d7cd6-68ac-4323-b733-daba52189cc7/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-20 06:24:06,021 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c76d7cd6-68ac-4323-b733-daba52189cc7/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-20 06:24:06,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:24:06,176 INFO L263 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-20 06:24:06,183 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 06:24:06,326 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-20 06:24:06,587 INFO L354 Elim1Store]: treesize reduction 12, result has 40.0 percent of original size [2021-11-20 06:24:06,588 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 21 [2021-11-20 06:24:06,638 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 06:24:06,639 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 06:24:07,097 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 06:24:07,098 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-20 06:24:07,098 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1092976587] [2021-11-20 06:24:07,099 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1092976587] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-20 06:24:07,100 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-20 06:24:07,100 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6] total 8 [2021-11-20 06:24:07,102 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1995248648] [2021-11-20 06:24:07,105 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-20 06:24:07,111 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-20 06:24:07,112 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-20 06:24:07,163 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-20 06:24:07,165 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-11-20 06:24:07,168 INFO L87 Difference]: Start difference. First operand has 42 states, 23 states have (on average 1.6956521739130435) internal successors, (39), 38 states have internal predecessors, (39), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 9 states, 8 states have (on average 2.0) internal successors, (16), 7 states have internal predecessors, (16), 2 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-11-20 06:24:07,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:24:07,497 INFO L93 Difference]: Finished difference Result 42 states and 43 transitions. [2021-11-20 06:24:07,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-20 06:24:07,505 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 2.0) internal successors, (16), 7 states have internal predecessors, (16), 2 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 16 [2021-11-20 06:24:07,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:24:07,511 INFO L225 Difference]: With dead ends: 42 [2021-11-20 06:24:07,511 INFO L226 Difference]: Without dead ends: 39 [2021-11-20 06:24:07,512 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 19 SyntacticMatches, 4 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2021-11-20 06:24:07,519 INFO L933 BasicCegarLoop]: 23 mSDtfsCounter, 19 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 94 SdHoareTripleChecker+Invalid, 156 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 53 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-20 06:24:07,520 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [19 Valid, 94 Invalid, 156 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 99 Invalid, 0 Unknown, 53 Unchecked, 0.2s Time] [2021-11-20 06:24:07,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2021-11-20 06:24:07,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2021-11-20 06:24:07,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 25 states have (on average 1.36) internal successors, (34), 34 states have internal predecessors, (34), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-20 06:24:07,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 38 transitions. [2021-11-20 06:24:07,557 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 38 transitions. Word has length 16 [2021-11-20 06:24:07,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:24:07,558 INFO L470 AbstractCegarLoop]: Abstraction has 39 states and 38 transitions. [2021-11-20 06:24:07,558 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 2.0) internal successors, (16), 7 states have internal predecessors, (16), 2 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-11-20 06:24:07,558 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 38 transitions. [2021-11-20 06:24:07,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-11-20 06:24:07,559 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:24:07,560 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:24:07,580 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c76d7cd6-68ac-4323-b733-daba52189cc7/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-20 06:24:07,772 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c76d7cd6-68ac-4323-b733-daba52189cc7/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 [2021-11-20 06:24:07,772 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 11 more)] === [2021-11-20 06:24:07,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:24:07,773 INFO L85 PathProgramCache]: Analyzing trace with hash -900798969, now seen corresponding path program 1 times [2021-11-20 06:24:07,774 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-20 06:24:07,774 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [33294341] [2021-11-20 06:24:07,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:24:07,775 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-20 06:24:07,775 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c76d7cd6-68ac-4323-b733-daba52189cc7/bin/uautomizer-DQz5hQGWxF/mathsat [2021-11-20 06:24:07,782 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c76d7cd6-68ac-4323-b733-daba52189cc7/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-20 06:24:07,784 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c76d7cd6-68ac-4323-b733-daba52189cc7/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-20 06:24:07,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:24:07,838 INFO L263 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 16 conjunts are in the unsatisfiable core [2021-11-20 06:24:07,840 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 06:24:07,876 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-20 06:24:07,886 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-20 06:24:08,234 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-11-20 06:24:08,236 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 37 treesize of output 39 [2021-11-20 06:24:08,250 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-20 06:24:08,250 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 36 [2021-11-20 06:24:08,323 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 06:24:08,323 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 06:24:19,905 WARN L860 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~s~0#1.offset_BEFORE_CALL_2| (_ BitVec 32)) (|v_alloc_node_~temp~0#1.base_16| (_ BitVec 32)) (|v_ULTIMATE.start_main_~s~0#1.base_BEFORE_CALL_4| (_ BitVec 32))) (or (not (= (_ bv0 1) (bvneg (select |c_#valid| |v_alloc_node_~temp~0#1.base_16|)))) (let ((.cse0 (bvadd (_ bv4 32) |v_ULTIMATE.start_main_~s~0#1.offset_BEFORE_CALL_2|))) (and (bvule .cse0 (select (store |c_#length| |v_alloc_node_~temp~0#1.base_16| (_ bv4 32)) |v_ULTIMATE.start_main_~s~0#1.base_BEFORE_CALL_4|)) (bvule |v_ULTIMATE.start_main_~s~0#1.offset_BEFORE_CALL_2| .cse0))) (exists ((|v_alloc_node_~temp~0#1.base_15| (_ BitVec 32))) (and (let ((.cse1 (bvadd (_ bv4 32) |v_ULTIMATE.start_main_~s~0#1.offset_BEFORE_CALL_2|))) (or (not (bvule |v_ULTIMATE.start_main_~s~0#1.offset_BEFORE_CALL_2| .cse1)) (not (bvule .cse1 (select (store |c_old(#length)| |v_alloc_node_~temp~0#1.base_15| (_ bv4 32)) |v_ULTIMATE.start_main_~s~0#1.base_BEFORE_CALL_4|))))) (= (_ bv0 1) (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (select |c_old(#valid)| |v_alloc_node_~temp~0#1.base_15|))))))))))))) is different from true [2021-11-20 06:24:22,661 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 06:24:22,662 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-20 06:24:22,662 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [33294341] [2021-11-20 06:24:22,663 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [33294341] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-20 06:24:22,664 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-20 06:24:22,667 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 15 [2021-11-20 06:24:22,668 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1130692973] [2021-11-20 06:24:22,668 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-20 06:24:22,670 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2021-11-20 06:24:22,671 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-20 06:24:22,673 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-11-20 06:24:22,675 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=174, Unknown=3, NotChecked=26, Total=240 [2021-11-20 06:24:22,678 INFO L87 Difference]: Start difference. First operand 39 states and 38 transitions. Second operand has 16 states, 13 states have (on average 1.6923076923076923) internal successors, (22), 10 states have internal predecessors, (22), 3 states have call successors, (3), 3 states have call predecessors, (3), 4 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) [2021-11-20 06:24:24,907 WARN L838 $PredicateComparison]: unable to prove that (and (= |c_old(#valid)| |c_#valid|) (forall ((|v_ULTIMATE.start_main_~s~0#1.offset_BEFORE_CALL_2| (_ BitVec 32)) (|v_alloc_node_~temp~0#1.base_16| (_ BitVec 32)) (|v_ULTIMATE.start_main_~s~0#1.base_BEFORE_CALL_4| (_ BitVec 32))) (or (not (= (_ bv0 1) (bvneg (select |c_#valid| |v_alloc_node_~temp~0#1.base_16|)))) (let ((.cse0 (bvadd (_ bv4 32) |v_ULTIMATE.start_main_~s~0#1.offset_BEFORE_CALL_2|))) (and (bvule .cse0 (select (store |c_#length| |v_alloc_node_~temp~0#1.base_16| (_ bv4 32)) |v_ULTIMATE.start_main_~s~0#1.base_BEFORE_CALL_4|)) (bvule |v_ULTIMATE.start_main_~s~0#1.offset_BEFORE_CALL_2| .cse0))) (exists ((|v_alloc_node_~temp~0#1.base_15| (_ BitVec 32))) (and (let ((.cse1 (bvadd (_ bv4 32) |v_ULTIMATE.start_main_~s~0#1.offset_BEFORE_CALL_2|))) (or (not (bvule |v_ULTIMATE.start_main_~s~0#1.offset_BEFORE_CALL_2| .cse1)) (not (bvule .cse1 (select (store |c_old(#length)| |v_alloc_node_~temp~0#1.base_15| (_ bv4 32)) |v_ULTIMATE.start_main_~s~0#1.base_BEFORE_CALL_4|))))) (= (_ bv0 1) (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (select |c_old(#valid)| |v_alloc_node_~temp~0#1.base_15|))))))))))))) (= |c_#length| |c_old(#length)|)) is different from false [2021-11-20 06:24:25,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:24:25,088 INFO L93 Difference]: Finished difference Result 36 states and 35 transitions. [2021-11-20 06:24:25,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-20 06:24:25,090 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 13 states have (on average 1.6923076923076923) internal successors, (22), 10 states have internal predecessors, (22), 3 states have call successors, (3), 3 states have call predecessors, (3), 4 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) Word has length 16 [2021-11-20 06:24:25,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:24:25,091 INFO L225 Difference]: With dead ends: 36 [2021-11-20 06:24:25,092 INFO L226 Difference]: Without dead ends: 36 [2021-11-20 06:24:25,092 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 12.8s TimeCoverageRelationStatistics Valid=51, Invalid=225, Unknown=4, NotChecked=62, Total=342 [2021-11-20 06:24:25,094 INFO L933 BasicCegarLoop]: 18 mSDtfsCounter, 16 mSDsluCounter, 89 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 107 SdHoareTripleChecker+Invalid, 198 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 131 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-20 06:24:25,095 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [16 Valid, 107 Invalid, 198 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 62 Invalid, 0 Unknown, 131 Unchecked, 0.2s Time] [2021-11-20 06:24:25,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2021-11-20 06:24:25,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2021-11-20 06:24:25,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 25 states have (on average 1.24) internal successors, (31), 31 states have internal predecessors, (31), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-20 06:24:25,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 35 transitions. [2021-11-20 06:24:25,104 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 35 transitions. Word has length 16 [2021-11-20 06:24:25,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:24:25,105 INFO L470 AbstractCegarLoop]: Abstraction has 36 states and 35 transitions. [2021-11-20 06:24:25,105 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 13 states have (on average 1.6923076923076923) internal successors, (22), 10 states have internal predecessors, (22), 3 states have call successors, (3), 3 states have call predecessors, (3), 4 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) [2021-11-20 06:24:25,105 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 35 transitions. [2021-11-20 06:24:25,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-11-20 06:24:25,107 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:24:25,107 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:24:25,125 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c76d7cd6-68ac-4323-b733-daba52189cc7/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-20 06:24:25,320 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c76d7cd6-68ac-4323-b733-daba52189cc7/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 [2021-11-20 06:24:25,321 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 11 more)] === [2021-11-20 06:24:25,322 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:24:25,322 INFO L85 PathProgramCache]: Analyzing trace with hash 1915582952, now seen corresponding path program 1 times [2021-11-20 06:24:25,323 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-20 06:24:25,323 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2003808280] [2021-11-20 06:24:25,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:24:25,323 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-20 06:24:25,324 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c76d7cd6-68ac-4323-b733-daba52189cc7/bin/uautomizer-DQz5hQGWxF/mathsat [2021-11-20 06:24:25,333 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c76d7cd6-68ac-4323-b733-daba52189cc7/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-20 06:24:25,334 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c76d7cd6-68ac-4323-b733-daba52189cc7/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-20 06:24:25,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:24:25,388 INFO L263 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-20 06:24:25,389 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 06:24:25,553 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-20 06:24:25,553 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 06:24:25,703 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 6 [2021-11-20 06:24:26,030 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-20 06:24:26,030 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-20 06:24:26,031 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2003808280] [2021-11-20 06:24:26,031 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2003808280] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-20 06:24:26,031 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-20 06:24:26,032 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2021-11-20 06:24:26,032 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [539879180] [2021-11-20 06:24:26,032 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-20 06:24:26,033 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-20 06:24:26,033 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-20 06:24:26,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-20 06:24:26,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2021-11-20 06:24:26,035 INFO L87 Difference]: Start difference. First operand 36 states and 35 transitions. Second operand has 12 states, 11 states have (on average 2.0) internal successors, (22), 10 states have internal predecessors, (22), 3 states have call successors, (3), 1 states have call predecessors, (3), 3 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) [2021-11-20 06:24:26,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:24:26,367 INFO L93 Difference]: Finished difference Result 34 states and 33 transitions. [2021-11-20 06:24:26,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-20 06:24:26,369 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.0) internal successors, (22), 10 states have internal predecessors, (22), 3 states have call successors, (3), 1 states have call predecessors, (3), 3 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) Word has length 18 [2021-11-20 06:24:26,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:24:26,370 INFO L225 Difference]: With dead ends: 34 [2021-11-20 06:24:26,370 INFO L226 Difference]: Without dead ends: 34 [2021-11-20 06:24:26,371 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2021-11-20 06:24:26,373 INFO L933 BasicCegarLoop]: 18 mSDtfsCounter, 36 mSDsluCounter, 99 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 117 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-20 06:24:26,374 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [36 Valid, 117 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-20 06:24:26,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2021-11-20 06:24:26,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2021-11-20 06:24:26,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 25 states have (on average 1.16) internal successors, (29), 29 states have internal predecessors, (29), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-20 06:24:26,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 33 transitions. [2021-11-20 06:24:26,382 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 33 transitions. Word has length 18 [2021-11-20 06:24:26,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:24:26,383 INFO L470 AbstractCegarLoop]: Abstraction has 34 states and 33 transitions. [2021-11-20 06:24:26,383 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 2.0) internal successors, (22), 10 states have internal predecessors, (22), 3 states have call successors, (3), 1 states have call predecessors, (3), 3 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) [2021-11-20 06:24:26,383 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 33 transitions. [2021-11-20 06:24:26,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-11-20 06:24:26,384 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:24:26,385 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:24:26,406 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c76d7cd6-68ac-4323-b733-daba52189cc7/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-20 06:24:26,605 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c76d7cd6-68ac-4323-b733-daba52189cc7/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 [2021-11-20 06:24:26,606 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 11 more)] === [2021-11-20 06:24:26,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:24:26,606 INFO L85 PathProgramCache]: Analyzing trace with hash -866093651, now seen corresponding path program 1 times [2021-11-20 06:24:26,607 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-20 06:24:26,607 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1688230514] [2021-11-20 06:24:26,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:24:26,608 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-20 06:24:26,608 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c76d7cd6-68ac-4323-b733-daba52189cc7/bin/uautomizer-DQz5hQGWxF/mathsat [2021-11-20 06:24:26,610 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c76d7cd6-68ac-4323-b733-daba52189cc7/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-20 06:24:26,620 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c76d7cd6-68ac-4323-b733-daba52189cc7/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-20 06:24:26,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:24:26,679 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-20 06:24:26,681 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 06:24:27,210 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 06:24:27,210 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 06:24:27,546 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-20 06:24:27,546 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-20 06:24:27,546 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1688230514] [2021-11-20 06:24:27,547 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1688230514] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-20 06:24:27,547 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-20 06:24:27,547 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5] total 11 [2021-11-20 06:24:27,547 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1659412334] [2021-11-20 06:24:27,548 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-20 06:24:27,548 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-20 06:24:27,548 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-20 06:24:27,549 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-20 06:24:27,549 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2021-11-20 06:24:27,550 INFO L87 Difference]: Start difference. First operand 34 states and 33 transitions. Second operand has 12 states, 11 states have (on average 3.6363636363636362) internal successors, (40), 10 states have internal predecessors, (40), 4 states have call successors, (4), 3 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2021-11-20 06:24:27,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:24:27,877 INFO L93 Difference]: Finished difference Result 33 states and 32 transitions. [2021-11-20 06:24:27,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-20 06:24:27,878 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 3.6363636363636362) internal successors, (40), 10 states have internal predecessors, (40), 4 states have call successors, (4), 3 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Word has length 24 [2021-11-20 06:24:27,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:24:27,879 INFO L225 Difference]: With dead ends: 33 [2021-11-20 06:24:27,880 INFO L226 Difference]: Without dead ends: 33 [2021-11-20 06:24:27,880 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 35 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2021-11-20 06:24:27,882 INFO L933 BasicCegarLoop]: 15 mSDtfsCounter, 21 mSDsluCounter, 61 mSDsCounter, 0 mSdLazyCounter, 95 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 76 SdHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 95 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 11 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-20 06:24:27,885 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [21 Valid, 76 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 95 Invalid, 0 Unknown, 11 Unchecked, 0.3s Time] [2021-11-20 06:24:27,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2021-11-20 06:24:27,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2021-11-20 06:24:27,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 25 states have (on average 1.12) internal successors, (28), 28 states have internal predecessors, (28), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-20 06:24:27,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 32 transitions. [2021-11-20 06:24:27,892 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 32 transitions. Word has length 24 [2021-11-20 06:24:27,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:24:27,893 INFO L470 AbstractCegarLoop]: Abstraction has 33 states and 32 transitions. [2021-11-20 06:24:27,893 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 3.6363636363636362) internal successors, (40), 10 states have internal predecessors, (40), 4 states have call successors, (4), 3 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2021-11-20 06:24:27,894 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 32 transitions. [2021-11-20 06:24:27,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-11-20 06:24:27,895 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:24:27,895 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:24:27,910 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c76d7cd6-68ac-4323-b733-daba52189cc7/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-20 06:24:28,109 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c76d7cd6-68ac-4323-b733-daba52189cc7/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 [2021-11-20 06:24:28,110 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 11 more)] === [2021-11-20 06:24:28,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:24:28,111 INFO L85 PathProgramCache]: Analyzing trace with hash 907658607, now seen corresponding path program 1 times [2021-11-20 06:24:28,111 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-20 06:24:28,112 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1277520197] [2021-11-20 06:24:28,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:24:28,112 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-20 06:24:28,112 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c76d7cd6-68ac-4323-b733-daba52189cc7/bin/uautomizer-DQz5hQGWxF/mathsat [2021-11-20 06:24:28,113 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c76d7cd6-68ac-4323-b733-daba52189cc7/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-20 06:24:28,124 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c76d7cd6-68ac-4323-b733-daba52189cc7/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-20 06:24:28,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:24:28,184 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-20 06:24:28,187 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 06:24:28,262 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-20 06:24:28,329 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 0 case distinctions, treesize of input 23 treesize of output 11 [2021-11-20 06:24:28,349 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 15 treesize of output 7 [2021-11-20 06:24:28,413 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-20 06:24:28,413 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 06:24:28,587 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-20 06:24:28,587 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-20 06:24:28,588 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1277520197] [2021-11-20 06:24:28,588 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1277520197] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-20 06:24:28,588 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:24:28,588 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [] total 9 [2021-11-20 06:24:28,588 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [181983969] [2021-11-20 06:24:28,588 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-20 06:24:28,589 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-20 06:24:28,589 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-20 06:24:28,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-20 06:24:28,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2021-11-20 06:24:28,591 INFO L87 Difference]: Start difference. First operand 33 states and 32 transitions. Second operand has 10 states, 9 states have (on average 2.6666666666666665) internal successors, (24), 9 states have internal predecessors, (24), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-20 06:24:28,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:24:28,916 INFO L93 Difference]: Finished difference Result 32 states and 31 transitions. [2021-11-20 06:24:28,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-20 06:24:28,917 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.6666666666666665) internal successors, (24), 9 states have internal predecessors, (24), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 26 [2021-11-20 06:24:28,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:24:28,918 INFO L225 Difference]: With dead ends: 32 [2021-11-20 06:24:28,918 INFO L226 Difference]: Without dead ends: 32 [2021-11-20 06:24:28,919 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2021-11-20 06:24:28,920 INFO L933 BasicCegarLoop]: 16 mSDtfsCounter, 20 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 117 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-20 06:24:28,921 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 117 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-20 06:24:28,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2021-11-20 06:24:28,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2021-11-20 06:24:28,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 25 states have (on average 1.08) internal successors, (27), 27 states have internal predecessors, (27), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-20 06:24:28,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 31 transitions. [2021-11-20 06:24:28,927 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 31 transitions. Word has length 26 [2021-11-20 06:24:28,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:24:28,928 INFO L470 AbstractCegarLoop]: Abstraction has 32 states and 31 transitions. [2021-11-20 06:24:28,928 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.6666666666666665) internal successors, (24), 9 states have internal predecessors, (24), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-20 06:24:28,929 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 31 transitions. [2021-11-20 06:24:28,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-20 06:24:28,930 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:24:28,930 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:24:28,943 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c76d7cd6-68ac-4323-b733-daba52189cc7/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (6)] Ended with exit code 0 [2021-11-20 06:24:29,138 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c76d7cd6-68ac-4323-b733-daba52189cc7/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 [2021-11-20 06:24:29,139 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 11 more)] === [2021-11-20 06:24:29,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:24:29,140 INFO L85 PathProgramCache]: Analyzing trace with hash -1927354195, now seen corresponding path program 1 times [2021-11-20 06:24:29,141 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-20 06:24:29,141 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [11490173] [2021-11-20 06:24:29,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:24:29,142 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-20 06:24:29,142 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c76d7cd6-68ac-4323-b733-daba52189cc7/bin/uautomizer-DQz5hQGWxF/mathsat [2021-11-20 06:24:29,150 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c76d7cd6-68ac-4323-b733-daba52189cc7/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-20 06:24:29,152 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c76d7cd6-68ac-4323-b733-daba52189cc7/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-20 06:24:29,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:24:29,217 INFO L263 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 12 conjunts are in the unsatisfiable core [2021-11-20 06:24:29,219 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 06:24:29,762 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 15 treesize of output 11 [2021-11-20 06:24:29,997 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 0 case distinctions, treesize of input 23 treesize of output 11 [2021-11-20 06:24:30,055 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 15 treesize of output 7 [2021-11-20 06:24:30,377 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 06:24:30,377 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 06:24:30,939 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-20 06:24:30,939 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-20 06:24:30,939 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [11490173] [2021-11-20 06:24:30,940 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [11490173] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-20 06:24:30,940 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:24:30,940 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 8] imperfect sequences [] total 17 [2021-11-20 06:24:30,940 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [194003153] [2021-11-20 06:24:30,940 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-20 06:24:30,940 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-11-20 06:24:30,940 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-20 06:24:30,941 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-11-20 06:24:30,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=242, Unknown=0, NotChecked=0, Total=306 [2021-11-20 06:24:30,941 INFO L87 Difference]: Start difference. First operand 32 states and 31 transitions. Second operand has 18 states, 17 states have (on average 2.7058823529411766) internal successors, (46), 16 states have internal predecessors, (46), 3 states have call successors, (4), 3 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) [2021-11-20 06:24:30,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:24:30,987 INFO L93 Difference]: Finished difference Result 31 states and 30 transitions. [2021-11-20 06:24:30,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-20 06:24:30,988 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 2.7058823529411766) internal successors, (46), 16 states have internal predecessors, (46), 3 states have call successors, (4), 3 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) Word has length 27 [2021-11-20 06:24:30,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:24:30,989 INFO L225 Difference]: With dead ends: 31 [2021-11-20 06:24:30,989 INFO L226 Difference]: Without dead ends: 31 [2021-11-20 06:24:30,990 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=64, Invalid=242, Unknown=0, NotChecked=0, Total=306 [2021-11-20 06:24:30,991 INFO L933 BasicCegarLoop]: 16 mSDtfsCounter, 7 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 91 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 36 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-20 06:24:30,991 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 91 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 36 Unchecked, 0.0s Time] [2021-11-20 06:24:30,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2021-11-20 06:24:30,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2021-11-20 06:24:30,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 25 states have (on average 1.04) internal successors, (26), 26 states have internal predecessors, (26), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-20 06:24:30,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 30 transitions. [2021-11-20 06:24:30,996 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 30 transitions. Word has length 27 [2021-11-20 06:24:30,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:24:30,996 INFO L470 AbstractCegarLoop]: Abstraction has 31 states and 30 transitions. [2021-11-20 06:24:30,997 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 2.7058823529411766) internal successors, (46), 16 states have internal predecessors, (46), 3 states have call successors, (4), 3 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) [2021-11-20 06:24:30,997 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 30 transitions. [2021-11-20 06:24:30,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-11-20 06:24:30,998 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:24:30,998 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:24:31,013 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c76d7cd6-68ac-4323-b733-daba52189cc7/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-20 06:24:31,198 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c76d7cd6-68ac-4323-b733-daba52189cc7/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 [2021-11-20 06:24:31,198 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 11 more)] === [2021-11-20 06:24:31,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:24:31,199 INFO L85 PathProgramCache]: Analyzing trace with hash 381562161, now seen corresponding path program 1 times [2021-11-20 06:24:31,199 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-20 06:24:31,199 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1108767267] [2021-11-20 06:24:31,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:24:31,199 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-20 06:24:31,200 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c76d7cd6-68ac-4323-b733-daba52189cc7/bin/uautomizer-DQz5hQGWxF/mathsat [2021-11-20 06:24:31,200 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c76d7cd6-68ac-4323-b733-daba52189cc7/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-20 06:24:31,205 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c76d7cd6-68ac-4323-b733-daba52189cc7/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-20 06:24:31,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:24:31,257 INFO L263 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 17 conjunts are in the unsatisfiable core [2021-11-20 06:24:31,259 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 06:24:31,268 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-20 06:24:31,496 INFO L354 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2021-11-20 06:24:31,496 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 23 treesize of output 30 [2021-11-20 06:24:31,583 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 20 [2021-11-20 06:24:31,814 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 0 case distinctions, treesize of input 36 treesize of output 20 [2021-11-20 06:24:31,876 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 28 treesize of output 16 [2021-11-20 06:24:32,141 INFO L354 Elim1Store]: treesize reduction 20, result has 28.6 percent of original size [2021-11-20 06:24:32,142 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 43 treesize of output 46 [2021-11-20 06:24:32,249 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 06:24:32,249 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 06:24:35,157 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 06:24:35,157 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-20 06:24:35,158 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1108767267] [2021-11-20 06:24:35,158 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1108767267] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-20 06:24:35,158 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-20 06:24:35,158 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [14] total 23 [2021-11-20 06:24:35,158 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [351365628] [2021-11-20 06:24:35,159 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:24:35,159 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-11-20 06:24:35,159 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-20 06:24:35,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-11-20 06:24:35,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=484, Unknown=1, NotChecked=0, Total=552 [2021-11-20 06:24:35,161 INFO L87 Difference]: Start difference. First operand 31 states and 30 transitions. Second operand has 15 states, 13 states have (on average 1.8461538461538463) internal successors, (24), 12 states have internal predecessors, (24), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-20 06:24:35,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:24:35,350 INFO L93 Difference]: Finished difference Result 30 states and 29 transitions. [2021-11-20 06:24:35,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-20 06:24:35,351 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 13 states have (on average 1.8461538461538463) internal successors, (24), 12 states have internal predecessors, (24), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 28 [2021-11-20 06:24:35,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:24:35,352 INFO L225 Difference]: With dead ends: 30 [2021-11-20 06:24:35,352 INFO L226 Difference]: Without dead ends: 30 [2021-11-20 06:24:35,353 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 28 SyntacticMatches, 4 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 154 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=76, Invalid=523, Unknown=1, NotChecked=0, Total=600 [2021-11-20 06:24:35,354 INFO L933 BasicCegarLoop]: 11 mSDtfsCounter, 5 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 68 SdHoareTripleChecker+Invalid, 128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 61 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-20 06:24:35,355 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5 Valid, 68 Invalid, 128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 65 Invalid, 0 Unknown, 61 Unchecked, 0.1s Time] [2021-11-20 06:24:35,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2021-11-20 06:24:35,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2021-11-20 06:24:35,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 25 states have (on average 1.0) internal successors, (25), 25 states have internal predecessors, (25), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-20 06:24:35,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 29 transitions. [2021-11-20 06:24:35,359 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 29 transitions. Word has length 28 [2021-11-20 06:24:35,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:24:35,359 INFO L470 AbstractCegarLoop]: Abstraction has 30 states and 29 transitions. [2021-11-20 06:24:35,360 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 13 states have (on average 1.8461538461538463) internal successors, (24), 12 states have internal predecessors, (24), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-20 06:24:35,360 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 29 transitions. [2021-11-20 06:24:35,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-11-20 06:24:35,360 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:24:35,361 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-11-20 06:24:35,383 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c76d7cd6-68ac-4323-b733-daba52189cc7/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-20 06:24:35,561 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c76d7cd6-68ac-4323-b733-daba52189cc7/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 [2021-11-20 06:24:35,561 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 11 more)] === [2021-11-20 06:24:35,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:24:35,562 INFO L85 PathProgramCache]: Analyzing trace with hash -1056474832, now seen corresponding path program 1 times [2021-11-20 06:24:35,563 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-20 06:24:35,563 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [160208130] [2021-11-20 06:24:35,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:24:35,563 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-20 06:24:35,564 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c76d7cd6-68ac-4323-b733-daba52189cc7/bin/uautomizer-DQz5hQGWxF/mathsat [2021-11-20 06:24:35,566 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c76d7cd6-68ac-4323-b733-daba52189cc7/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-20 06:24:35,596 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c76d7cd6-68ac-4323-b733-daba52189cc7/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-20 06:24:35,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:24:35,663 INFO L263 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 24 conjunts are in the unsatisfiable core [2021-11-20 06:24:35,666 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 06:24:36,211 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 36 treesize of output 32 [2021-11-20 06:24:36,493 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 0 case distinctions, treesize of input 52 treesize of output 32 [2021-11-20 06:24:36,558 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 44 treesize of output 28 [2021-11-20 06:24:39,111 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-20 06:24:39,111 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 06:24:47,492 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~s~0#1.base_BEFORE_CALL_10| (_ BitVec 32)) (|v_ULTIMATE.start_main_old_#valid#1_BEFORE_CALL_3| (Array (_ BitVec 32) (_ BitVec 1)))) (let ((.cse1 (store |c_#valid| |v_ULTIMATE.start_main_~s~0#1.base_BEFORE_CALL_10| (_ bv0 1)))) (or (exists ((|v_ULTIMATE.start_main_#t~ret4#1.base_27| (_ BitVec 32))) (let ((.cse0 (store (store |c_old(#valid)| |v_ULTIMATE.start_main_#t~ret4#1.base_27| (_ bv1 1)) |v_ULTIMATE.start_main_~s~0#1.base_BEFORE_CALL_10| (_ bv0 1)))) (and (not (= |v_ULTIMATE.start_main_#t~ret4#1.base_27| (_ bv0 32))) (= (_ bv0 1) (bvadd (bvneg (bvneg (bvneg (select .cse0 |v_ULTIMATE.start_main_#t~ret4#1.base_27|)))) (_ bv1 1))) (not (= (store .cse0 |v_ULTIMATE.start_main_#t~ret4#1.base_27| (_ bv0 1)) |v_ULTIMATE.start_main_old_#valid#1_BEFORE_CALL_3|)) (= (_ bv0 1) (bvneg (bvneg (bvneg (bvneg (bvneg (select |c_old(#valid)| |v_ULTIMATE.start_main_#t~ret4#1.base_27|)))))))))) (= (store .cse1 |c_alloc_node_#res#1.base| (_ bv0 1)) |v_ULTIMATE.start_main_old_#valid#1_BEFORE_CALL_3|) (and (not (= (_ bv0 1) (bvadd (bvneg (bvneg (bvneg (bvneg (select .cse1 |c_alloc_node_#res#1.base|))))) (_ bv1 1)))) (not (= |c_alloc_node_#res#1.base| (_ bv0 32))))))) is different from false [2021-11-20 06:24:48,272 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~s~0#1.base_BEFORE_CALL_10| (_ BitVec 32)) (|v_ULTIMATE.start_main_old_#valid#1_BEFORE_CALL_3| (Array (_ BitVec 32) (_ BitVec 1)))) (let ((.cse0 (store |c_#valid| |v_ULTIMATE.start_main_~s~0#1.base_BEFORE_CALL_10| (_ bv0 1)))) (or (and (not (= (_ bv0 1) (bvadd (bvneg (bvneg (bvneg (bvneg (select .cse0 |c_alloc_node_~temp~0#1.base|))))) (_ bv1 1)))) (not (= (_ bv0 32) |c_alloc_node_~temp~0#1.base|))) (exists ((|v_ULTIMATE.start_main_#t~ret4#1.base_27| (_ BitVec 32))) (let ((.cse1 (store (store |c_old(#valid)| |v_ULTIMATE.start_main_#t~ret4#1.base_27| (_ bv1 1)) |v_ULTIMATE.start_main_~s~0#1.base_BEFORE_CALL_10| (_ bv0 1)))) (and (not (= |v_ULTIMATE.start_main_#t~ret4#1.base_27| (_ bv0 32))) (= (_ bv0 1) (bvadd (bvneg (bvneg (bvneg (select .cse1 |v_ULTIMATE.start_main_#t~ret4#1.base_27|)))) (_ bv1 1))) (not (= (store .cse1 |v_ULTIMATE.start_main_#t~ret4#1.base_27| (_ bv0 1)) |v_ULTIMATE.start_main_old_#valid#1_BEFORE_CALL_3|)) (= (_ bv0 1) (bvneg (bvneg (bvneg (bvneg (bvneg (select |c_old(#valid)| |v_ULTIMATE.start_main_#t~ret4#1.base_27|)))))))))) (= (store .cse0 |c_alloc_node_~temp~0#1.base| (_ bv0 1)) |v_ULTIMATE.start_main_old_#valid#1_BEFORE_CALL_3|)))) is different from false [2021-11-20 06:24:48,910 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~s~0#1.base_BEFORE_CALL_10| (_ BitVec 32)) (|v_alloc_node_~temp~0#1.base_61| (_ BitVec 32)) (|v_ULTIMATE.start_main_old_#valid#1_BEFORE_CALL_3| (Array (_ BitVec 32) (_ BitVec 1)))) (let ((.cse1 (store (store |c_#valid| |v_alloc_node_~temp~0#1.base_61| (_ bv1 1)) |v_ULTIMATE.start_main_~s~0#1.base_BEFORE_CALL_10| (_ bv0 1)))) (or (exists ((|v_ULTIMATE.start_main_#t~ret4#1.base_27| (_ BitVec 32))) (let ((.cse0 (store (store |c_old(#valid)| |v_ULTIMATE.start_main_#t~ret4#1.base_27| (_ bv1 1)) |v_ULTIMATE.start_main_~s~0#1.base_BEFORE_CALL_10| (_ bv0 1)))) (and (not (= |v_ULTIMATE.start_main_#t~ret4#1.base_27| (_ bv0 32))) (= (_ bv0 1) (bvadd (bvneg (bvneg (bvneg (select .cse0 |v_ULTIMATE.start_main_#t~ret4#1.base_27|)))) (_ bv1 1))) (not (= (store .cse0 |v_ULTIMATE.start_main_#t~ret4#1.base_27| (_ bv0 1)) |v_ULTIMATE.start_main_old_#valid#1_BEFORE_CALL_3|)) (= (_ bv0 1) (bvneg (bvneg (bvneg (bvneg (bvneg (select |c_old(#valid)| |v_ULTIMATE.start_main_#t~ret4#1.base_27|)))))))))) (= |v_alloc_node_~temp~0#1.base_61| (_ bv0 32)) (not (= (_ bv0 1) (bvneg (bvneg (select |c_#valid| |v_alloc_node_~temp~0#1.base_61|))))) (= |v_ULTIMATE.start_main_old_#valid#1_BEFORE_CALL_3| (store .cse1 |v_alloc_node_~temp~0#1.base_61| (_ bv0 1))) (not (= (_ bv0 1) (bvadd (bvneg (bvneg (bvneg (bvneg (bvneg (select .cse1 |v_alloc_node_~temp~0#1.base_61|)))))) (_ bv1 1))))))) is different from false [2021-11-20 06:25:04,276 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_#t~ret4#1.base_27| (_ BitVec 32)) (|v_ULTIMATE.start_main_old_#valid#1_BEFORE_CALL_4| (Array (_ BitVec 32) (_ BitVec 1)))) (let ((.cse1 (store (store |c_#valid| |v_ULTIMATE.start_main_#t~ret4#1.base_27| (_ bv1 1)) |c_alloc_node_#res#1.base| (_ bv0 1)))) (or (not (= (_ bv0 1) (bvneg (bvneg (bvneg (select |c_#valid| |v_ULTIMATE.start_main_#t~ret4#1.base_27|)))))) (exists ((|v_ULTIMATE.start_main_#t~ret3#1.base_30| (_ BitVec 32)) (|v_ULTIMATE.start_main_#t~ret4#1.base_27| (_ BitVec 32))) (let ((.cse0 (store |c_old(#valid)| |v_ULTIMATE.start_main_#t~ret3#1.base_30| (_ bv1 1)))) (and (not (= |v_ULTIMATE.start_main_#t~ret4#1.base_27| (_ bv0 32))) (not (= |v_ULTIMATE.start_main_old_#valid#1_BEFORE_CALL_4| (store (store (store .cse0 |v_ULTIMATE.start_main_#t~ret4#1.base_27| (_ bv1 1)) |v_ULTIMATE.start_main_#t~ret3#1.base_30| (_ bv0 1)) |v_ULTIMATE.start_main_#t~ret4#1.base_27| (_ bv0 1)))) (= (_ bv0 1) (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (select .cse0 |v_ULTIMATE.start_main_#t~ret4#1.base_27|)))))))) (= (_ bv0 1) (bvneg (bvneg (bvneg (select |c_old(#valid)| |v_ULTIMATE.start_main_#t~ret3#1.base_30|)))))))) (not (= (_ bv0 1) (bvadd (_ bv1 1) (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (select .cse1 |v_ULTIMATE.start_main_#t~ret4#1.base_27|))))))))))) (= |v_ULTIMATE.start_main_#t~ret4#1.base_27| (_ bv0 32)) (= |v_ULTIMATE.start_main_old_#valid#1_BEFORE_CALL_4| (store .cse1 |v_ULTIMATE.start_main_#t~ret4#1.base_27| (_ bv0 1)))))) is different from false [2021-11-20 06:25:04,852 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_#t~ret4#1.base_27| (_ BitVec 32)) (|v_ULTIMATE.start_main_old_#valid#1_BEFORE_CALL_4| (Array (_ BitVec 32) (_ BitVec 1)))) (let ((.cse1 (store (store |c_#valid| |v_ULTIMATE.start_main_#t~ret4#1.base_27| (_ bv1 1)) |c_alloc_node_~temp~0#1.base| (_ bv0 1)))) (or (not (= (_ bv0 1) (bvneg (bvneg (bvneg (select |c_#valid| |v_ULTIMATE.start_main_#t~ret4#1.base_27|)))))) (exists ((|v_ULTIMATE.start_main_#t~ret3#1.base_30| (_ BitVec 32)) (|v_ULTIMATE.start_main_#t~ret4#1.base_27| (_ BitVec 32))) (let ((.cse0 (store |c_old(#valid)| |v_ULTIMATE.start_main_#t~ret3#1.base_30| (_ bv1 1)))) (and (not (= |v_ULTIMATE.start_main_#t~ret4#1.base_27| (_ bv0 32))) (not (= |v_ULTIMATE.start_main_old_#valid#1_BEFORE_CALL_4| (store (store (store .cse0 |v_ULTIMATE.start_main_#t~ret4#1.base_27| (_ bv1 1)) |v_ULTIMATE.start_main_#t~ret3#1.base_30| (_ bv0 1)) |v_ULTIMATE.start_main_#t~ret4#1.base_27| (_ bv0 1)))) (= (_ bv0 1) (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (select .cse0 |v_ULTIMATE.start_main_#t~ret4#1.base_27|)))))))) (= (_ bv0 1) (bvneg (bvneg (bvneg (select |c_old(#valid)| |v_ULTIMATE.start_main_#t~ret3#1.base_30|)))))))) (= |v_ULTIMATE.start_main_#t~ret4#1.base_27| (_ bv0 32)) (not (= (_ bv0 1) (bvadd (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (select .cse1 |v_ULTIMATE.start_main_#t~ret4#1.base_27|))))))))) (_ bv1 1)))) (= |v_ULTIMATE.start_main_old_#valid#1_BEFORE_CALL_4| (store .cse1 |v_ULTIMATE.start_main_#t~ret4#1.base_27| (_ bv0 1)))))) is different from false [2021-11-20 06:25:05,528 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_#t~ret4#1.base_27| (_ BitVec 32)) (|v_ULTIMATE.start_main_old_#valid#1_BEFORE_CALL_4| (Array (_ BitVec 32) (_ BitVec 1))) (|v_alloc_node_~temp~0#1.base_65| (_ BitVec 32))) (let ((.cse1 (store |c_#valid| |v_alloc_node_~temp~0#1.base_65| (_ bv1 1)))) (or (exists ((|v_ULTIMATE.start_main_#t~ret3#1.base_30| (_ BitVec 32)) (|v_ULTIMATE.start_main_#t~ret4#1.base_27| (_ BitVec 32))) (let ((.cse0 (store |c_old(#valid)| |v_ULTIMATE.start_main_#t~ret3#1.base_30| (_ bv1 1)))) (and (not (= |v_ULTIMATE.start_main_#t~ret4#1.base_27| (_ bv0 32))) (not (= |v_ULTIMATE.start_main_old_#valid#1_BEFORE_CALL_4| (store (store (store .cse0 |v_ULTIMATE.start_main_#t~ret4#1.base_27| (_ bv1 1)) |v_ULTIMATE.start_main_#t~ret3#1.base_30| (_ bv0 1)) |v_ULTIMATE.start_main_#t~ret4#1.base_27| (_ bv0 1)))) (= (_ bv0 1) (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (select .cse0 |v_ULTIMATE.start_main_#t~ret4#1.base_27|)))))))) (= (_ bv0 1) (bvneg (bvneg (bvneg (select |c_old(#valid)| |v_ULTIMATE.start_main_#t~ret3#1.base_30|)))))))) (= (store (store (store .cse1 |v_ULTIMATE.start_main_#t~ret4#1.base_27| (_ bv1 1)) |v_alloc_node_~temp~0#1.base_65| (_ bv0 1)) |v_ULTIMATE.start_main_#t~ret4#1.base_27| (_ bv0 1)) |v_ULTIMATE.start_main_old_#valid#1_BEFORE_CALL_4|) (= |v_ULTIMATE.start_main_#t~ret4#1.base_27| (_ bv0 32)) (not (= (_ bv0 1) (bvneg (select |c_#valid| |v_alloc_node_~temp~0#1.base_65|)))) (not (= (_ bv0 1) (bvneg (bvneg (bvneg (bvneg (select .cse1 |v_ULTIMATE.start_main_#t~ret4#1.base_27|)))))))))) is different from false [2021-11-20 06:25:05,565 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 5 not checked. [2021-11-20 06:25:05,565 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-20 06:25:05,566 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [160208130] [2021-11-20 06:25:05,566 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [160208130] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-20 06:25:05,566 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-20 06:25:05,566 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [17] total 31 [2021-11-20 06:25:05,566 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1626522752] [2021-11-20 06:25:05,567 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:25:05,567 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2021-11-20 06:25:05,568 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-20 06:25:05,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-11-20 06:25:05,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=582, Unknown=16, NotChecked=318, Total=992 [2021-11-20 06:25:05,569 INFO L87 Difference]: Start difference. First operand 30 states and 29 transitions. Second operand has 17 states, 14 states have (on average 1.7857142857142858) internal successors, (25), 14 states have internal predecessors, (25), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-20 06:25:06,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:25:06,408 INFO L93 Difference]: Finished difference Result 29 states and 28 transitions. [2021-11-20 06:25:06,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-11-20 06:25:06,409 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 14 states have (on average 1.7857142857142858) internal successors, (25), 14 states have internal predecessors, (25), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 29 [2021-11-20 06:25:06,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:25:06,413 INFO L225 Difference]: With dead ends: 29 [2021-11-20 06:25:06,413 INFO L226 Difference]: Without dead ends: 0 [2021-11-20 06:25:06,414 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 25 SyntacticMatches, 1 SemanticMatches, 34 ConstructedPredicates, 6 IntricatePredicates, 0 DeprecatedPredicates, 118 ImplicationChecksByTransitivity, 25.8s TimeCoverageRelationStatistics Valid=100, Invalid=778, Unknown=16, NotChecked=366, Total=1260 [2021-11-20 06:25:06,415 INFO L933 BasicCegarLoop]: 8 mSDtfsCounter, 7 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 188 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 56 SdHoareTripleChecker+Invalid, 227 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 188 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 37 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-11-20 06:25:06,416 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 56 Invalid, 227 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 188 Invalid, 0 Unknown, 37 Unchecked, 0.4s Time] [2021-11-20 06:25:06,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-20 06:25:06,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-20 06:25:06,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:25:06,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-20 06:25:06,417 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 29 [2021-11-20 06:25:06,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:25:06,418 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-20 06:25:06,418 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 14 states have (on average 1.7857142857142858) internal successors, (25), 14 states have internal predecessors, (25), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-20 06:25:06,418 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-20 06:25:06,419 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-20 06:25:06,422 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0REQUIRES_VIOLATION (14 of 15 remaining) [2021-11-20 06:25:06,422 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1REQUIRES_VIOLATION (13 of 15 remaining) [2021-11-20 06:25:06,423 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2REQUIRES_VIOLATION (12 of 15 remaining) [2021-11-20 06:25:06,423 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3REQUIRES_VIOLATION (11 of 15 remaining) [2021-11-20 06:25:06,423 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4REQUIRES_VIOLATION (10 of 15 remaining) [2021-11-20 06:25:06,423 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5REQUIRES_VIOLATION (9 of 15 remaining) [2021-11-20 06:25:06,424 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6REQUIRES_VIOLATION (8 of 15 remaining) [2021-11-20 06:25:06,424 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7REQUIRES_VIOLATION (7 of 15 remaining) [2021-11-20 06:25:06,424 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_FREE (6 of 15 remaining) [2021-11-20 06:25:06,425 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_FREE (5 of 15 remaining) [2021-11-20 06:25:06,425 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_FREE (4 of 15 remaining) [2021-11-20 06:25:06,425 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_FREE (3 of 15 remaining) [2021-11-20 06:25:06,425 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_FREE (2 of 15 remaining) [2021-11-20 06:25:06,426 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_FREE (1 of 15 remaining) [2021-11-20 06:25:06,426 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK (0 of 15 remaining) [2021-11-20 06:25:06,454 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c76d7cd6-68ac-4323-b733-daba52189cc7/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-11-20 06:25:06,640 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c76d7cd6-68ac-4323-b733-daba52189cc7/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 [2021-11-20 06:25:06,646 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:25:06,648 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-20 06:25:06,652 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 06:25:06 BoogieIcfgContainer [2021-11-20 06:25:06,652 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-20 06:25:06,653 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-20 06:25:06,653 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-20 06:25:06,654 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-20 06:25:06,654 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 06:24:05" (3/4) ... [2021-11-20 06:25:06,672 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-20 06:25:06,677 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure alloc_node [2021-11-20 06:25:06,683 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2021-11-20 06:25:06,683 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-11-20 06:25:06,684 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-11-20 06:25:06,684 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-20 06:25:06,724 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c76d7cd6-68ac-4323-b733-daba52189cc7/bin/uautomizer-DQz5hQGWxF/witness.graphml [2021-11-20 06:25:06,724 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-20 06:25:06,725 INFO L158 Benchmark]: Toolchain (without parser) took 62342.67ms. Allocated memory was 56.6MB in the beginning and 96.5MB in the end (delta: 39.8MB). Free memory was 33.7MB in the beginning and 40.2MB in the end (delta: -6.5MB). Peak memory consumption was 34.6MB. Max. memory is 16.1GB. [2021-11-20 06:25:06,725 INFO L158 Benchmark]: CDTParser took 0.43ms. Allocated memory is still 56.6MB. Free memory was 37.9MB in the beginning and 37.9MB in the end (delta: 42.6kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-20 06:25:06,726 INFO L158 Benchmark]: CACSL2BoogieTranslator took 680.33ms. Allocated memory is still 56.6MB. Free memory was 33.4MB in the beginning and 30.0MB in the end (delta: 3.4MB). Peak memory consumption was 11.8MB. Max. memory is 16.1GB. [2021-11-20 06:25:06,727 INFO L158 Benchmark]: Boogie Procedure Inliner took 60.58ms. Allocated memory is still 56.6MB. Free memory was 30.0MB in the beginning and 28.2MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-20 06:25:06,727 INFO L158 Benchmark]: Boogie Preprocessor took 36.13ms. Allocated memory is still 56.6MB. Free memory was 28.2MB in the beginning and 26.8MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-20 06:25:06,728 INFO L158 Benchmark]: RCFGBuilder took 651.56ms. Allocated memory was 56.6MB in the beginning and 75.5MB in the end (delta: 18.9MB). Free memory was 26.8MB in the beginning and 48.4MB in the end (delta: -21.6MB). Peak memory consumption was 4.8MB. Max. memory is 16.1GB. [2021-11-20 06:25:06,728 INFO L158 Benchmark]: TraceAbstraction took 60834.43ms. Allocated memory was 75.5MB in the beginning and 96.5MB in the end (delta: 21.0MB). Free memory was 47.8MB in the beginning and 42.2MB in the end (delta: 5.6MB). Peak memory consumption was 26.3MB. Max. memory is 16.1GB. [2021-11-20 06:25:06,729 INFO L158 Benchmark]: Witness Printer took 71.12ms. Allocated memory is still 96.5MB. Free memory was 42.2MB in the beginning and 40.2MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-20 06:25:06,732 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.43ms. Allocated memory is still 56.6MB. Free memory was 37.9MB in the beginning and 37.9MB in the end (delta: 42.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 680.33ms. Allocated memory is still 56.6MB. Free memory was 33.4MB in the beginning and 30.0MB in the end (delta: 3.4MB). Peak memory consumption was 11.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 60.58ms. Allocated memory is still 56.6MB. Free memory was 30.0MB in the beginning and 28.2MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 36.13ms. Allocated memory is still 56.6MB. Free memory was 28.2MB in the beginning and 26.8MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 651.56ms. Allocated memory was 56.6MB in the beginning and 75.5MB in the end (delta: 18.9MB). Free memory was 26.8MB in the beginning and 48.4MB in the end (delta: -21.6MB). Peak memory consumption was 4.8MB. Max. memory is 16.1GB. * TraceAbstraction took 60834.43ms. Allocated memory was 75.5MB in the beginning and 96.5MB in the end (delta: 21.0MB). Free memory was 47.8MB in the beginning and 42.2MB in the end (delta: 5.6MB). Peak memory consumption was 26.3MB. Max. memory is 16.1GB. * Witness Printer took 71.12ms. Allocated memory is still 96.5MB. Free memory was 42.2MB in the beginning and 40.2MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 570]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 570]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 571]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 571]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 571]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 571]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 572]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 572]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 573]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 573]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 573]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 574]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 574]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 574]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 568]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 42 locations, 15 error locations. Started 1 CEGAR loops. OverallTime: 60.7s, OverallIterations: 8, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 4.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 131 SdHoareTripleChecker+Valid, 1.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 131 mSDsluCounter, 726 SdHoareTripleChecker+Invalid, 1.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 329 IncrementalHoareTripleChecker+Unchecked, 601 mSDsCounter, 19 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 688 IncrementalHoareTripleChecker+Invalid, 1036 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 19 mSolverCounterUnsat, 125 mSDtfsCounter, 688 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 371 GetRequests, 227 SyntacticMatches, 10 SemanticMatches, 134 ConstructedPredicates, 8 IntricatePredicates, 0 DeprecatedPredicates, 399 ImplicationChecksByTransitivity, 43.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=42occurred in iteration=0, InterpolantAutomatonStates: 84, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 8 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 53.2s InterpolantComputationTime, 184 NumberOfCodeBlocks, 184 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 352 ConstructedInterpolants, 88 QuantifiedInterpolants, 4788 SizeOfPredicates, 40 NumberOfNonLiveVariables, 533 ConjunctsInSsa, 99 ConjunctsInUnsatCore, 16 InterpolantComputations, 6 PerfectInterpolantSequences, 39/80 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 - AllSpecificationsHoldResult: All specifications hold 15 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2021-11-20 06:25:06,777 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c76d7cd6-68ac-4323-b733-daba52189cc7/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE