./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/memsafety-ext2/complex_data_creation_test01-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7106b7cb-d78c-4585-b02a-5b17cf140786/bin/utaipan-eEHZpOm5b7/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7106b7cb-d78c-4585-b02a-5b17cf140786/bin/utaipan-eEHZpOm5b7/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7106b7cb-d78c-4585-b02a-5b17cf140786/bin/utaipan-eEHZpOm5b7/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7106b7cb-d78c-4585-b02a-5b17cf140786/bin/utaipan-eEHZpOm5b7/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/memsafety-ext2/complex_data_creation_test01-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7106b7cb-d78c-4585-b02a-5b17cf140786/bin/utaipan-eEHZpOm5b7/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7106b7cb-d78c-4585-b02a-5b17cf140786/bin/utaipan-eEHZpOm5b7 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 52769785b06238c88fd6b21b09d77c08165e59529f322f93adf725e9d68e47df --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-11-25 20:30:16,414 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-25 20:30:16,417 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-25 20:30:16,471 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-25 20:30:16,471 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-25 20:30:16,475 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-25 20:30:16,477 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-25 20:30:16,480 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-25 20:30:16,483 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-25 20:30:16,488 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-25 20:30:16,489 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-25 20:30:16,491 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-25 20:30:16,491 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-25 20:30:16,501 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-25 20:30:16,503 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-25 20:30:16,510 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-25 20:30:16,512 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-25 20:30:16,513 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-25 20:30:16,516 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-25 20:30:16,524 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-25 20:30:16,525 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-25 20:30:16,527 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-25 20:30:16,530 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-25 20:30:16,531 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-25 20:30:16,540 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-25 20:30:16,540 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-25 20:30:16,540 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-25 20:30:16,542 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-25 20:30:16,543 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-25 20:30:16,552 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-25 20:30:16,553 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-25 20:30:16,554 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-25 20:30:16,556 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-25 20:30:16,557 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-25 20:30:16,558 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-25 20:30:16,559 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-25 20:30:16,559 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-25 20:30:16,560 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-25 20:30:16,560 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-25 20:30:16,561 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-25 20:30:16,562 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-25 20:30:16,562 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7106b7cb-d78c-4585-b02a-5b17cf140786/bin/utaipan-eEHZpOm5b7/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2021-11-25 20:30:16,606 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-25 20:30:16,606 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-25 20:30:16,607 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-25 20:30:16,607 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-25 20:30:16,608 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-25 20:30:16,608 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-25 20:30:16,608 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-25 20:30:16,608 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-25 20:30:16,609 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-25 20:30:16,609 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-25 20:30:16,610 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-25 20:30:16,610 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-25 20:30:16,610 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-25 20:30:16,610 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-25 20:30:16,611 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-25 20:30:16,611 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-25 20:30:16,611 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-25 20:30:16,611 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-25 20:30:16,612 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-25 20:30:16,612 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-25 20:30:16,612 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-25 20:30:16,613 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-25 20:30:16,613 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-25 20:30:16,614 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-25 20:30:16,615 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-25 20:30:16,615 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-25 20:30:16,615 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-11-25 20:30:16,615 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-11-25 20:30:16,615 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-11-25 20:30:16,616 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-25 20:30:16,616 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-25 20:30:16,616 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-25 20:30:16,616 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-25 20:30:16,617 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-25 20:30:16,617 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-25 20:30:16,617 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 20:30:16,617 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-25 20:30:16,618 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-25 20:30:16,618 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-25 20:30:16,618 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-25 20:30:16,618 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-25 20:30:16,618 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-25 20:30:16,619 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7106b7cb-d78c-4585-b02a-5b17cf140786/bin/utaipan-eEHZpOm5b7/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7106b7cb-d78c-4585-b02a-5b17cf140786/bin/utaipan-eEHZpOm5b7 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 52769785b06238c88fd6b21b09d77c08165e59529f322f93adf725e9d68e47df [2021-11-25 20:30:16,847 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-25 20:30:16,866 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-25 20:30:16,869 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-25 20:30:16,870 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-25 20:30:16,871 INFO L275 PluginConnector]: CDTParser initialized [2021-11-25 20:30:16,872 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7106b7cb-d78c-4585-b02a-5b17cf140786/bin/utaipan-eEHZpOm5b7/../../sv-benchmarks/c/memsafety-ext2/complex_data_creation_test01-1.i [2021-11-25 20:30:16,928 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7106b7cb-d78c-4585-b02a-5b17cf140786/bin/utaipan-eEHZpOm5b7/data/9479e52e5/1b96a55083624039a2830e5d2ce252c1/FLAG836a06e8b [2021-11-25 20:30:17,485 INFO L306 CDTParser]: Found 1 translation units. [2021-11-25 20:30:17,486 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7106b7cb-d78c-4585-b02a-5b17cf140786/sv-benchmarks/c/memsafety-ext2/complex_data_creation_test01-1.i [2021-11-25 20:30:17,498 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7106b7cb-d78c-4585-b02a-5b17cf140786/bin/utaipan-eEHZpOm5b7/data/9479e52e5/1b96a55083624039a2830e5d2ce252c1/FLAG836a06e8b [2021-11-25 20:30:17,950 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7106b7cb-d78c-4585-b02a-5b17cf140786/bin/utaipan-eEHZpOm5b7/data/9479e52e5/1b96a55083624039a2830e5d2ce252c1 [2021-11-25 20:30:17,952 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-25 20:30:17,953 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-25 20:30:17,955 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-25 20:30:17,955 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-25 20:30:17,958 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-25 20:30:17,959 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:30:17" (1/1) ... [2021-11-25 20:30:17,960 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@462db201 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:30:17, skipping insertion in model container [2021-11-25 20:30:17,960 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:30:17" (1/1) ... [2021-11-25 20:30:17,967 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-25 20:30:18,003 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-25 20:30:18,274 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 20:30:18,282 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) [2021-11-25 20:30:18,283 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@7858e763 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:30:18, skipping insertion in model container [2021-11-25 20:30:18,283 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-25 20:30:18,284 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-25 20:30:18,286 INFO L158 Benchmark]: Toolchain (without parser) took 331.32ms. Allocated memory is still 109.1MB. Free memory was 83.5MB in the beginning and 71.7MB in the end (delta: 11.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-11-25 20:30:18,287 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 79.7MB. Free memory was 48.2MB in the beginning and 48.2MB in the end (delta: 37.2kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-25 20:30:18,287 INFO L158 Benchmark]: CACSL2BoogieTranslator took 329.09ms. Allocated memory is still 109.1MB. Free memory was 83.3MB in the beginning and 72.0MB in the end (delta: 11.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-11-25 20:30:18,289 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 79.7MB. Free memory was 48.2MB in the beginning and 48.2MB in the end (delta: 37.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 329.09ms. Allocated memory is still 109.1MB. Free memory was 83.3MB in the beginning and 72.0MB in the end (delta: 11.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 556]: 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_7106b7cb-d78c-4585-b02a-5b17cf140786/bin/utaipan-eEHZpOm5b7/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7106b7cb-d78c-4585-b02a-5b17cf140786/bin/utaipan-eEHZpOm5b7/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7106b7cb-d78c-4585-b02a-5b17cf140786/bin/utaipan-eEHZpOm5b7/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7106b7cb-d78c-4585-b02a-5b17cf140786/bin/utaipan-eEHZpOm5b7/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/memsafety-ext2/complex_data_creation_test01-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7106b7cb-d78c-4585-b02a-5b17cf140786/bin/utaipan-eEHZpOm5b7/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7106b7cb-d78c-4585-b02a-5b17cf140786/bin/utaipan-eEHZpOm5b7 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 52769785b06238c88fd6b21b09d77c08165e59529f322f93adf725e9d68e47df --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-11-25 20:30:20,516 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-25 20:30:20,519 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-25 20:30:20,569 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-25 20:30:20,570 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-25 20:30:20,574 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-25 20:30:20,576 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-25 20:30:20,579 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-25 20:30:20,582 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-25 20:30:20,590 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-25 20:30:20,591 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-25 20:30:20,593 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-25 20:30:20,594 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-25 20:30:20,596 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-25 20:30:20,598 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-25 20:30:20,602 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-25 20:30:20,604 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-25 20:30:20,605 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-25 20:30:20,607 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-25 20:30:20,623 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-25 20:30:20,625 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-25 20:30:20,628 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-25 20:30:20,630 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-25 20:30:20,632 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-25 20:30:20,642 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-25 20:30:20,643 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-25 20:30:20,643 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-25 20:30:20,645 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-25 20:30:20,646 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-25 20:30:20,647 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-25 20:30:20,647 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-25 20:30:20,648 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-25 20:30:20,650 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-25 20:30:20,651 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-25 20:30:20,652 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-25 20:30:20,653 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-25 20:30:20,654 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-25 20:30:20,654 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-25 20:30:20,654 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-25 20:30:20,656 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-25 20:30:20,657 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-25 20:30:20,662 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7106b7cb-d78c-4585-b02a-5b17cf140786/bin/utaipan-eEHZpOm5b7/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf [2021-11-25 20:30:20,703 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-25 20:30:20,703 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-25 20:30:20,704 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-25 20:30:20,704 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-25 20:30:20,705 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-25 20:30:20,705 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-25 20:30:20,705 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-25 20:30:20,705 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-25 20:30:20,706 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-25 20:30:20,706 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-25 20:30:20,707 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-25 20:30:20,707 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-25 20:30:20,708 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-25 20:30:20,709 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-25 20:30:20,709 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-25 20:30:20,709 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-25 20:30:20,709 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-25 20:30:20,710 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-25 20:30:20,710 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-25 20:30:20,710 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-25 20:30:20,710 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-11-25 20:30:20,710 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-11-25 20:30:20,711 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-11-25 20:30:20,711 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-25 20:30:20,711 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-25 20:30:20,711 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-25 20:30:20,712 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-25 20:30:20,712 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-25 20:30:20,712 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-25 20:30:20,712 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-25 20:30:20,713 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-25 20:30:20,713 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-25 20:30:20,714 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 20:30:20,714 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-25 20:30:20,715 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-25 20:30:20,715 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-25 20:30:20,715 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-25 20:30:20,715 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-25 20:30:20,715 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-25 20:30:20,716 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_7106b7cb-d78c-4585-b02a-5b17cf140786/bin/utaipan-eEHZpOm5b7/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7106b7cb-d78c-4585-b02a-5b17cf140786/bin/utaipan-eEHZpOm5b7 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 52769785b06238c88fd6b21b09d77c08165e59529f322f93adf725e9d68e47df [2021-11-25 20:30:21,096 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-25 20:30:21,114 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-25 20:30:21,117 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-25 20:30:21,118 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-25 20:30:21,119 INFO L275 PluginConnector]: CDTParser initialized [2021-11-25 20:30:21,120 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7106b7cb-d78c-4585-b02a-5b17cf140786/bin/utaipan-eEHZpOm5b7/../../sv-benchmarks/c/memsafety-ext2/complex_data_creation_test01-1.i [2021-11-25 20:30:21,195 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7106b7cb-d78c-4585-b02a-5b17cf140786/bin/utaipan-eEHZpOm5b7/data/df53ba873/d789c88ab6ee4fceac3156d23e1114fb/FLAGbbe7f6f3e [2021-11-25 20:30:21,841 INFO L306 CDTParser]: Found 1 translation units. [2021-11-25 20:30:21,842 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7106b7cb-d78c-4585-b02a-5b17cf140786/sv-benchmarks/c/memsafety-ext2/complex_data_creation_test01-1.i [2021-11-25 20:30:21,865 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7106b7cb-d78c-4585-b02a-5b17cf140786/bin/utaipan-eEHZpOm5b7/data/df53ba873/d789c88ab6ee4fceac3156d23e1114fb/FLAGbbe7f6f3e [2021-11-25 20:30:22,205 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7106b7cb-d78c-4585-b02a-5b17cf140786/bin/utaipan-eEHZpOm5b7/data/df53ba873/d789c88ab6ee4fceac3156d23e1114fb [2021-11-25 20:30:22,207 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-25 20:30:22,209 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-25 20:30:22,210 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-25 20:30:22,210 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-25 20:30:22,235 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-25 20:30:22,236 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:30:22" (1/1) ... [2021-11-25 20:30:22,236 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@355a53c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:30:22, skipping insertion in model container [2021-11-25 20:30:22,237 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:30:22" (1/1) ... [2021-11-25 20:30:22,242 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-25 20:30:22,279 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-25 20:30:22,622 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 20:30:22,633 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-25 20:30:22,642 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-25 20:30:22,679 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 20:30:22,685 INFO L203 MainTranslator]: Completed pre-run [2021-11-25 20:30:22,726 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 20:30:22,763 INFO L208 MainTranslator]: Completed translation [2021-11-25 20:30:22,763 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:30:22 WrapperNode [2021-11-25 20:30:22,763 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-25 20:30:22,764 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-25 20:30:22,764 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-25 20:30:22,765 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-25 20:30:22,771 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:30:22" (1/1) ... [2021-11-25 20:30:22,790 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:30:22" (1/1) ... [2021-11-25 20:30:22,814 INFO L137 Inliner]: procedures = 129, calls = 62, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 98 [2021-11-25 20:30:22,814 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-25 20:30:22,815 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-25 20:30:22,815 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-25 20:30:22,815 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-25 20:30:22,823 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:30:22" (1/1) ... [2021-11-25 20:30:22,823 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:30:22" (1/1) ... [2021-11-25 20:30:22,828 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:30:22" (1/1) ... [2021-11-25 20:30:22,829 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:30:22" (1/1) ... [2021-11-25 20:30:22,844 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:30:22" (1/1) ... [2021-11-25 20:30:22,849 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:30:22" (1/1) ... [2021-11-25 20:30:22,851 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:30:22" (1/1) ... [2021-11-25 20:30:22,856 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-25 20:30:22,857 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-25 20:30:22,857 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-25 20:30:22,857 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-25 20:30:22,858 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:30:22" (1/1) ... [2021-11-25 20:30:22,865 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 20:30:22,878 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7106b7cb-d78c-4585-b02a-5b17cf140786/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 20:30:22,889 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7106b7cb-d78c-4585-b02a-5b17cf140786/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-25 20:30:22,902 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7106b7cb-d78c-4585-b02a-5b17cf140786/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-25 20:30:22,948 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-25 20:30:22,948 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-25 20:30:22,948 INFO L130 BoogieDeclarations]: Found specification of procedure create_data [2021-11-25 20:30:22,948 INFO L138 BoogieDeclarations]: Found implementation of procedure create_data [2021-11-25 20:30:22,949 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-25 20:30:22,949 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-25 20:30:22,949 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-25 20:30:22,949 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-25 20:30:22,949 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-25 20:30:22,950 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-25 20:30:22,950 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-25 20:30:22,950 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-25 20:30:22,950 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-25 20:30:22,950 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-25 20:30:23,055 INFO L236 CfgBuilder]: Building ICFG [2021-11-25 20:30:23,057 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-25 20:30:23,962 INFO L277 CfgBuilder]: Performing block encoding [2021-11-25 20:30:23,970 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-25 20:30:23,971 INFO L301 CfgBuilder]: Removed 4 assume(true) statements. [2021-11-25 20:30:23,973 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:30:23 BoogieIcfgContainer [2021-11-25 20:30:23,973 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-25 20:30:23,975 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-25 20:30:23,975 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-25 20:30:23,978 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-25 20:30:23,978 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 08:30:22" (1/3) ... [2021-11-25 20:30:23,979 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e0825ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 08:30:23, skipping insertion in model container [2021-11-25 20:30:23,979 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:30:22" (2/3) ... [2021-11-25 20:30:23,979 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e0825ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 08:30:23, skipping insertion in model container [2021-11-25 20:30:23,979 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:30:23" (3/3) ... [2021-11-25 20:30:23,981 INFO L111 eAbstractionObserver]: Analyzing ICFG complex_data_creation_test01-1.i [2021-11-25 20:30:23,986 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-25 20:30:23,986 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 92 error locations. [2021-11-25 20:30:24,031 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-25 20:30:24,038 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 [2021-11-25 20:30:24,038 INFO L340 AbstractCegarLoop]: Starting to check reachability of 92 error locations. [2021-11-25 20:30:24,056 INFO L276 IsEmpty]: Start isEmpty. Operand has 188 states, 92 states have (on average 2.1630434782608696) internal successors, (199), 184 states have internal predecessors, (199), 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) [2021-11-25 20:30:24,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-11-25 20:30:24,063 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:30:24,063 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-11-25 20:30:24,064 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATION === [create_dataErr0REQUIRES_VIOLATION, create_dataErr1REQUIRES_VIOLATION, create_dataErr2REQUIRES_VIOLATION, create_dataErr3REQUIRES_VIOLATION (and 88 more)] === [2021-11-25 20:30:24,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:30:24,069 INFO L85 PathProgramCache]: Analyzing trace with hash 4835205, now seen corresponding path program 1 times [2021-11-25 20:30:24,081 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-25 20:30:24,082 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1628075604] [2021-11-25 20:30:24,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:30:24,083 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-25 20:30:24,083 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7106b7cb-d78c-4585-b02a-5b17cf140786/bin/utaipan-eEHZpOm5b7/mathsat [2021-11-25 20:30:24,089 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7106b7cb-d78c-4585-b02a-5b17cf140786/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-25 20:30:24,126 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7106b7cb-d78c-4585-b02a-5b17cf140786/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-25 20:30:24,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:30:24,189 INFO L263 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-25 20:30:24,194 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 20:30:24,292 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 [2021-11-25 20:30:24,391 INFO L354 Elim1Store]: treesize reduction 12, result has 40.0 percent of original size [2021-11-25 20:30:24,392 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 20 treesize of output 25 [2021-11-25 20:30:24,430 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:30:24,430 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 20:30:24,431 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-25 20:30:24,432 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1628075604] [2021-11-25 20:30:24,432 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1628075604] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:30:24,433 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:30:24,433 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 20:30:24,435 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [706423746] [2021-11-25 20:30:24,435 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:30:24,439 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 20:30:24,439 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-25 20:30:24,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 20:30:24,471 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 20:30:24,474 INFO L87 Difference]: Start difference. First operand has 188 states, 92 states have (on average 2.1630434782608696) internal successors, (199), 184 states have internal predecessors, (199), 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 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 4 states have internal predecessors, (4), 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) [2021-11-25 20:30:24,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:30:24,898 INFO L93 Difference]: Finished difference Result 183 states and 194 transitions. [2021-11-25 20:30:24,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 20:30:24,900 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 4 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2021-11-25 20:30:24,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:30:24,910 INFO L225 Difference]: With dead ends: 183 [2021-11-25 20:30:24,910 INFO L226 Difference]: Without dead ends: 181 [2021-11-25 20:30:24,911 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 20:30:24,915 INFO L933 BasicCegarLoop]: 166 mSDtfsCounter, 47 mSDsluCounter, 166 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 332 SdHoareTripleChecker+Invalid, 201 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 97 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-11-25 20:30:24,916 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [47 Valid, 332 Invalid, 201 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 96 Invalid, 0 Unknown, 97 Unchecked, 0.4s Time] [2021-11-25 20:30:24,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2021-11-25 20:30:24,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 181. [2021-11-25 20:30:24,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 181 states, 91 states have (on average 2.065934065934066) internal successors, (188), 177 states have internal predecessors, (188), 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) [2021-11-25 20:30:24,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 192 transitions. [2021-11-25 20:30:24,964 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 192 transitions. Word has length 4 [2021-11-25 20:30:24,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:30:24,964 INFO L470 AbstractCegarLoop]: Abstraction has 181 states and 192 transitions. [2021-11-25 20:30:24,965 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 4 states have internal predecessors, (4), 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) [2021-11-25 20:30:24,965 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 192 transitions. [2021-11-25 20:30:24,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-11-25 20:30:24,965 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:30:24,966 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-11-25 20:30:24,983 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7106b7cb-d78c-4585-b02a-5b17cf140786/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-25 20:30:25,177 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7106b7cb-d78c-4585-b02a-5b17cf140786/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 [2021-11-25 20:30:25,177 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATION === [create_dataErr0REQUIRES_VIOLATION, create_dataErr1REQUIRES_VIOLATION, create_dataErr2REQUIRES_VIOLATION, create_dataErr3REQUIRES_VIOLATION (and 88 more)] === [2021-11-25 20:30:25,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:30:25,178 INFO L85 PathProgramCache]: Analyzing trace with hash 4835206, now seen corresponding path program 1 times [2021-11-25 20:30:25,178 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-25 20:30:25,178 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [975346972] [2021-11-25 20:30:25,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:30:25,179 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-25 20:30:25,179 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7106b7cb-d78c-4585-b02a-5b17cf140786/bin/utaipan-eEHZpOm5b7/mathsat [2021-11-25 20:30:25,180 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7106b7cb-d78c-4585-b02a-5b17cf140786/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-25 20:30:25,186 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7106b7cb-d78c-4585-b02a-5b17cf140786/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-25 20:30:25,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:30:25,253 INFO L263 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 12 conjunts are in the unsatisfiable core [2021-11-25 20:30:25,254 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 20:30:25,289 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 [2021-11-25 20:30:25,298 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 [2021-11-25 20:30:25,343 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:30:25,345 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 14 [2021-11-25 20:30:25,357 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-25 20:30:25,357 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 18 [2021-11-25 20:30:25,377 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:30:25,377 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 20:30:25,377 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-25 20:30:25,378 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [975346972] [2021-11-25 20:30:25,378 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [975346972] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:30:25,378 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:30:25,378 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 20:30:25,379 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1779578198] [2021-11-25 20:30:25,379 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:30:25,380 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 20:30:25,380 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-25 20:30:25,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 20:30:25,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 20:30:25,381 INFO L87 Difference]: Start difference. First operand 181 states and 192 transitions. Second operand has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 4 states have internal predecessors, (4), 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) [2021-11-25 20:30:26,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:30:26,141 INFO L93 Difference]: Finished difference Result 198 states and 212 transitions. [2021-11-25 20:30:26,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 20:30:26,142 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 4 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2021-11-25 20:30:26,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:30:26,145 INFO L225 Difference]: With dead ends: 198 [2021-11-25 20:30:26,145 INFO L226 Difference]: Without dead ends: 198 [2021-11-25 20:30:26,145 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 20:30:26,147 INFO L933 BasicCegarLoop]: 181 mSDtfsCounter, 30 mSDsluCounter, 160 mSDsCounter, 0 mSdLazyCounter, 240 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 341 SdHoareTripleChecker+Invalid, 242 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 240 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-11-25 20:30:26,148 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [30 Valid, 341 Invalid, 242 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 240 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-11-25 20:30:26,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198 states. [2021-11-25 20:30:26,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198 to 186. [2021-11-25 20:30:26,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 186 states, 96 states have (on average 2.0416666666666665) internal successors, (196), 182 states have internal predecessors, (196), 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) [2021-11-25 20:30:26,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 186 states and 200 transitions. [2021-11-25 20:30:26,166 INFO L78 Accepts]: Start accepts. Automaton has 186 states and 200 transitions. Word has length 4 [2021-11-25 20:30:26,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:30:26,166 INFO L470 AbstractCegarLoop]: Abstraction has 186 states and 200 transitions. [2021-11-25 20:30:26,166 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 4 states have internal predecessors, (4), 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) [2021-11-25 20:30:26,166 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states and 200 transitions. [2021-11-25 20:30:26,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-11-25 20:30:26,167 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:30:26,167 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-11-25 20:30:26,181 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7106b7cb-d78c-4585-b02a-5b17cf140786/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (3)] Ended with exit code 0 [2021-11-25 20:30:26,377 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7106b7cb-d78c-4585-b02a-5b17cf140786/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 [2021-11-25 20:30:26,378 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2REQUIRES_VIOLATION === [create_dataErr0REQUIRES_VIOLATION, create_dataErr1REQUIRES_VIOLATION, create_dataErr2REQUIRES_VIOLATION, create_dataErr3REQUIRES_VIOLATION (and 88 more)] === [2021-11-25 20:30:26,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:30:26,378 INFO L85 PathProgramCache]: Analyzing trace with hash 149891462, now seen corresponding path program 1 times [2021-11-25 20:30:26,379 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-25 20:30:26,379 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [141442561] [2021-11-25 20:30:26,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:30:26,379 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-25 20:30:26,380 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7106b7cb-d78c-4585-b02a-5b17cf140786/bin/utaipan-eEHZpOm5b7/mathsat [2021-11-25 20:30:26,380 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7106b7cb-d78c-4585-b02a-5b17cf140786/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-25 20:30:26,392 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7106b7cb-d78c-4585-b02a-5b17cf140786/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-25 20:30:26,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:30:26,448 INFO L263 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-25 20:30:26,449 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 20:30:26,472 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 [2021-11-25 20:30:26,481 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:30:26,481 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 20:30:26,482 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-25 20:30:26,482 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [141442561] [2021-11-25 20:30:26,482 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [141442561] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:30:26,483 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:30:26,483 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-25 20:30:26,483 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1808726146] [2021-11-25 20:30:26,483 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:30:26,484 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 20:30:26,484 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-25 20:30:26,485 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 20:30:26,485 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:30:26,485 INFO L87 Difference]: Start difference. First operand 186 states and 200 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:30:26,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:30:26,837 INFO L93 Difference]: Finished difference Result 209 states and 223 transitions. [2021-11-25 20:30:26,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 20:30:26,839 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2021-11-25 20:30:26,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:30:26,841 INFO L225 Difference]: With dead ends: 209 [2021-11-25 20:30:26,841 INFO L226 Difference]: Without dead ends: 209 [2021-11-25 20:30:26,841 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:30:26,843 INFO L933 BasicCegarLoop]: 158 mSDtfsCounter, 65 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 106 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 230 SdHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-25 20:30:26,843 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [65 Valid, 230 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 106 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-25 20:30:26,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 209 states. [2021-11-25 20:30:26,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 209 to 184. [2021-11-25 20:30:26,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 184 states, 96 states have (on average 2.0104166666666665) internal successors, (193), 180 states have internal predecessors, (193), 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) [2021-11-25 20:30:26,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 197 transitions. [2021-11-25 20:30:26,859 INFO L78 Accepts]: Start accepts. Automaton has 184 states and 197 transitions. Word has length 5 [2021-11-25 20:30:26,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:30:26,859 INFO L470 AbstractCegarLoop]: Abstraction has 184 states and 197 transitions. [2021-11-25 20:30:26,859 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:30:26,859 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 197 transitions. [2021-11-25 20:30:26,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-11-25 20:30:26,860 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:30:26,860 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-11-25 20:30:26,870 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7106b7cb-d78c-4585-b02a-5b17cf140786/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (4)] Ended with exit code 0 [2021-11-25 20:30:27,069 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7106b7cb-d78c-4585-b02a-5b17cf140786/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 [2021-11-25 20:30:27,069 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATION === [create_dataErr0REQUIRES_VIOLATION, create_dataErr1REQUIRES_VIOLATION, create_dataErr2REQUIRES_VIOLATION, create_dataErr3REQUIRES_VIOLATION (and 88 more)] === [2021-11-25 20:30:27,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:30:27,070 INFO L85 PathProgramCache]: Analyzing trace with hash 149891463, now seen corresponding path program 1 times [2021-11-25 20:30:27,071 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-25 20:30:27,071 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1460377996] [2021-11-25 20:30:27,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:30:27,071 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-25 20:30:27,071 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7106b7cb-d78c-4585-b02a-5b17cf140786/bin/utaipan-eEHZpOm5b7/mathsat [2021-11-25 20:30:27,072 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7106b7cb-d78c-4585-b02a-5b17cf140786/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-25 20:30:27,073 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7106b7cb-d78c-4585-b02a-5b17cf140786/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-25 20:30:27,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:30:27,126 INFO L263 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-25 20:30:27,131 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 20:30:27,149 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 [2021-11-25 20:30:27,171 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:30:27,171 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 20:30:27,172 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-25 20:30:27,172 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1460377996] [2021-11-25 20:30:27,172 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1460377996] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:30:27,172 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:30:27,173 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-25 20:30:27,173 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [792518261] [2021-11-25 20:30:27,173 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:30:27,173 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 20:30:27,174 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-25 20:30:27,175 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 20:30:27,175 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:30:27,175 INFO L87 Difference]: Start difference. First operand 184 states and 197 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:30:27,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:30:27,543 INFO L93 Difference]: Finished difference Result 182 states and 194 transitions. [2021-11-25 20:30:27,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 20:30:27,543 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2021-11-25 20:30:27,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:30:27,545 INFO L225 Difference]: With dead ends: 182 [2021-11-25 20:30:27,545 INFO L226 Difference]: Without dead ends: 182 [2021-11-25 20:30:27,545 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:30:27,547 INFO L933 BasicCegarLoop]: 180 mSDtfsCounter, 12 mSDsluCounter, 92 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 272 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-11-25 20:30:27,547 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [12 Valid, 272 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-11-25 20:30:27,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2021-11-25 20:30:27,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 182. [2021-11-25 20:30:27,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 182 states, 96 states have (on average 1.9791666666666667) internal successors, (190), 178 states have internal predecessors, (190), 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) [2021-11-25 20:30:27,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 194 transitions. [2021-11-25 20:30:27,559 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 194 transitions. Word has length 5 [2021-11-25 20:30:27,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:30:27,559 INFO L470 AbstractCegarLoop]: Abstraction has 182 states and 194 transitions. [2021-11-25 20:30:27,560 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:30:27,560 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 194 transitions. [2021-11-25 20:30:27,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-25 20:30:27,560 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:30:27,560 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:30:27,579 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7106b7cb-d78c-4585-b02a-5b17cf140786/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-25 20:30:27,771 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7106b7cb-d78c-4585-b02a-5b17cf140786/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 [2021-11-25 20:30:27,771 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATION === [create_dataErr0REQUIRES_VIOLATION, create_dataErr1REQUIRES_VIOLATION, create_dataErr2REQUIRES_VIOLATION, create_dataErr3REQUIRES_VIOLATION (and 88 more)] === [2021-11-25 20:30:27,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:30:27,772 INFO L85 PathProgramCache]: Analyzing trace with hash -1983189561, now seen corresponding path program 1 times [2021-11-25 20:30:27,772 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-25 20:30:27,772 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1054220883] [2021-11-25 20:30:27,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:30:27,773 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-25 20:30:27,773 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7106b7cb-d78c-4585-b02a-5b17cf140786/bin/utaipan-eEHZpOm5b7/mathsat [2021-11-25 20:30:27,774 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7106b7cb-d78c-4585-b02a-5b17cf140786/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-25 20:30:27,776 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7106b7cb-d78c-4585-b02a-5b17cf140786/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-25 20:30:27,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:30:27,834 INFO L263 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-25 20:30:27,834 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 20:30:27,857 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:30:27,858 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 20:30:27,858 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-25 20:30:27,858 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1054220883] [2021-11-25 20:30:27,858 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1054220883] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:30:27,858 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:30:27,859 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-25 20:30:27,859 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1739838788] [2021-11-25 20:30:27,859 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:30:27,859 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 20:30:27,859 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-25 20:30:27,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 20:30:27,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:30:27,860 INFO L87 Difference]: Start difference. First operand 182 states and 194 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 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) [2021-11-25 20:30:28,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:30:28,156 INFO L93 Difference]: Finished difference Result 206 states and 218 transitions. [2021-11-25 20:30:28,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 20:30:28,157 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2021-11-25 20:30:28,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:30:28,158 INFO L225 Difference]: With dead ends: 206 [2021-11-25 20:30:28,158 INFO L226 Difference]: Without dead ends: 206 [2021-11-25 20:30:28,159 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:30:28,160 INFO L933 BasicCegarLoop]: 160 mSDtfsCounter, 54 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 106 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 236 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-25 20:30:28,161 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [54 Valid, 236 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 106 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-25 20:30:28,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206 states. [2021-11-25 20:30:28,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206 to 181. [2021-11-25 20:30:28,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 181 states, 96 states have (on average 1.9583333333333333) internal successors, (188), 177 states have internal predecessors, (188), 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) [2021-11-25 20:30:28,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 192 transitions. [2021-11-25 20:30:28,171 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 192 transitions. Word has length 7 [2021-11-25 20:30:28,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:30:28,171 INFO L470 AbstractCegarLoop]: Abstraction has 181 states and 192 transitions. [2021-11-25 20:30:28,171 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 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) [2021-11-25 20:30:28,171 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 192 transitions. [2021-11-25 20:30:28,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-11-25 20:30:28,172 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:30:28,172 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:30:28,196 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7106b7cb-d78c-4585-b02a-5b17cf140786/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-25 20:30:28,392 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7106b7cb-d78c-4585-b02a-5b17cf140786/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 [2021-11-25 20:30:28,392 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr10REQUIRES_VIOLATION === [create_dataErr0REQUIRES_VIOLATION, create_dataErr1REQUIRES_VIOLATION, create_dataErr2REQUIRES_VIOLATION, create_dataErr3REQUIRES_VIOLATION (and 88 more)] === [2021-11-25 20:30:28,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:30:28,393 INFO L85 PathProgramCache]: Analyzing trace with hash 370034199, now seen corresponding path program 1 times [2021-11-25 20:30:28,393 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-25 20:30:28,393 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [314812929] [2021-11-25 20:30:28,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:30:28,393 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-25 20:30:28,394 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7106b7cb-d78c-4585-b02a-5b17cf140786/bin/utaipan-eEHZpOm5b7/mathsat [2021-11-25 20:30:28,394 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7106b7cb-d78c-4585-b02a-5b17cf140786/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-25 20:30:28,398 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7106b7cb-d78c-4585-b02a-5b17cf140786/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-25 20:30:28,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:30:28,477 INFO L263 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 14 conjunts are in the unsatisfiable core [2021-11-25 20:30:28,478 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 20:30:28,516 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 [2021-11-25 20:30:28,554 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-25 20:30:28,555 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 17 [2021-11-25 20:30:28,628 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2021-11-25 20:30:28,637 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2021-11-25 20:30:28,680 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 [2021-11-25 20:30:28,692 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 [2021-11-25 20:30:28,715 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:30:28,716 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 20:30:28,716 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-25 20:30:28,716 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [314812929] [2021-11-25 20:30:28,716 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [314812929] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:30:28,718 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:30:28,718 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-25 20:30:28,718 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1368987222] [2021-11-25 20:30:28,719 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:30:28,719 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-25 20:30:28,719 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-25 20:30:28,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-25 20:30:28,720 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-11-25 20:30:28,720 INFO L87 Difference]: Start difference. First operand 181 states and 192 transitions. Second operand has 6 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:30:29,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:30:29,360 INFO L93 Difference]: Finished difference Result 183 states and 195 transitions. [2021-11-25 20:30:29,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-25 20:30:29,361 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2021-11-25 20:30:29,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:30:29,362 INFO L225 Difference]: With dead ends: 183 [2021-11-25 20:30:29,362 INFO L226 Difference]: Without dead ends: 183 [2021-11-25 20:30:29,363 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2021-11-25 20:30:29,363 INFO L933 BasicCegarLoop]: 183 mSDtfsCounter, 4 mSDsluCounter, 560 mSDsCounter, 0 mSdLazyCounter, 196 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 743 SdHoareTripleChecker+Invalid, 200 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 196 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-11-25 20:30:29,364 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 743 Invalid, 200 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 196 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-11-25 20:30:29,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2021-11-25 20:30:29,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 182. [2021-11-25 20:30:29,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 182 states, 97 states have (on average 1.9484536082474226) internal successors, (189), 178 states have internal predecessors, (189), 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) [2021-11-25 20:30:29,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 193 transitions. [2021-11-25 20:30:29,373 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 193 transitions. Word has length 10 [2021-11-25 20:30:29,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:30:29,373 INFO L470 AbstractCegarLoop]: Abstraction has 182 states and 193 transitions. [2021-11-25 20:30:29,373 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:30:29,373 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 193 transitions. [2021-11-25 20:30:29,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-11-25 20:30:29,374 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:30:29,374 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:30:29,388 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7106b7cb-d78c-4585-b02a-5b17cf140786/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-25 20:30:29,585 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7106b7cb-d78c-4585-b02a-5b17cf140786/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 [2021-11-25 20:30:29,585 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting create_dataErr0REQUIRES_VIOLATION === [create_dataErr0REQUIRES_VIOLATION, create_dataErr1REQUIRES_VIOLATION, create_dataErr2REQUIRES_VIOLATION, create_dataErr3REQUIRES_VIOLATION (and 88 more)] === [2021-11-25 20:30:29,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:30:29,585 INFO L85 PathProgramCache]: Analyzing trace with hash -882700124, now seen corresponding path program 1 times [2021-11-25 20:30:29,586 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-25 20:30:29,586 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [324321291] [2021-11-25 20:30:29,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:30:29,586 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-25 20:30:29,586 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7106b7cb-d78c-4585-b02a-5b17cf140786/bin/utaipan-eEHZpOm5b7/mathsat [2021-11-25 20:30:29,592 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7106b7cb-d78c-4585-b02a-5b17cf140786/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-25 20:30:29,593 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7106b7cb-d78c-4585-b02a-5b17cf140786/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-25 20:30:29,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:30:29,665 INFO L263 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-25 20:30:29,667 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 20:30:29,721 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:30:29,722 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 20:30:29,722 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-25 20:30:29,722 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [324321291] [2021-11-25 20:30:29,722 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [324321291] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:30:29,722 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:30:29,723 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 20:30:29,723 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [303924339] [2021-11-25 20:30:29,723 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:30:29,723 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 20:30:29,724 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-25 20:30:29,724 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 20:30:29,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 20:30:29,724 INFO L87 Difference]: Start difference. First operand 182 states and 193 transitions. Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:30:29,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:30:29,759 INFO L93 Difference]: Finished difference Result 258 states and 273 transitions. [2021-11-25 20:30:29,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-25 20:30:29,759 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2021-11-25 20:30:29,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:30:29,761 INFO L225 Difference]: With dead ends: 258 [2021-11-25 20:30:29,761 INFO L226 Difference]: Without dead ends: 258 [2021-11-25 20:30:29,761 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 20:30:29,762 INFO L933 BasicCegarLoop]: 183 mSDtfsCounter, 79 mSDsluCounter, 362 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 545 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-25 20:30:29,762 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [79 Valid, 545 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-25 20:30:29,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 258 states. [2021-11-25 20:30:29,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 258 to 222. [2021-11-25 20:30:29,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 222 states, 136 states have (on average 1.9779411764705883) internal successors, (269), 217 states have internal predecessors, (269), 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) [2021-11-25 20:30:29,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 273 transitions. [2021-11-25 20:30:29,772 INFO L78 Accepts]: Start accepts. Automaton has 222 states and 273 transitions. Word has length 12 [2021-11-25 20:30:29,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:30:29,772 INFO L470 AbstractCegarLoop]: Abstraction has 222 states and 273 transitions. [2021-11-25 20:30:29,772 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:30:29,772 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states and 273 transitions. [2021-11-25 20:30:29,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-11-25 20:30:29,773 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:30:29,773 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:30:29,786 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7106b7cb-d78c-4585-b02a-5b17cf140786/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-25 20:30:29,983 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7106b7cb-d78c-4585-b02a-5b17cf140786/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 [2021-11-25 20:30:29,983 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting create_dataErr4REQUIRES_VIOLATION === [create_dataErr0REQUIRES_VIOLATION, create_dataErr1REQUIRES_VIOLATION, create_dataErr2REQUIRES_VIOLATION, create_dataErr3REQUIRES_VIOLATION (and 88 more)] === [2021-11-25 20:30:29,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:30:29,984 INFO L85 PathProgramCache]: Analyzing trace with hash -1593893879, now seen corresponding path program 1 times [2021-11-25 20:30:29,984 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-25 20:30:29,984 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1129065978] [2021-11-25 20:30:29,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:30:29,985 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-25 20:30:29,985 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7106b7cb-d78c-4585-b02a-5b17cf140786/bin/utaipan-eEHZpOm5b7/mathsat [2021-11-25 20:30:29,986 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7106b7cb-d78c-4585-b02a-5b17cf140786/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-25 20:30:29,990 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7106b7cb-d78c-4585-b02a-5b17cf140786/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-25 20:30:30,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:30:30,068 INFO L263 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-25 20:30:30,069 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 20:30:30,103 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:30:30,112 INFO L354 Elim1Store]: treesize reduction 12, result has 40.0 percent of original size [2021-11-25 20:30:30,112 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 1 case distinctions, treesize of input 9 treesize of output 14 [2021-11-25 20:30:30,131 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:30:30,131 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 20:30:30,131 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-25 20:30:30,132 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1129065978] [2021-11-25 20:30:30,132 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1129065978] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:30:30,132 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:30:30,132 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-25 20:30:30,132 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [306778926] [2021-11-25 20:30:30,133 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:30:30,133 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 20:30:30,133 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-25 20:30:30,133 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 20:30:30,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:30:30,134 INFO L87 Difference]: Start difference. First operand 222 states and 273 transitions. Second operand has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:30:30,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:30:30,139 INFO L93 Difference]: Finished difference Result 221 states and 271 transitions. [2021-11-25 20:30:30,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 20:30:30,139 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2021-11-25 20:30:30,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:30:30,141 INFO L225 Difference]: With dead ends: 221 [2021-11-25 20:30:30,141 INFO L226 Difference]: Without dead ends: 221 [2021-11-25 20:30:30,141 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:30:30,142 INFO L933 BasicCegarLoop]: 184 mSDtfsCounter, 0 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 268 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 101 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-25 20:30:30,142 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 268 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 101 Unchecked, 0.0s Time] [2021-11-25 20:30:30,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 221 states. [2021-11-25 20:30:30,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 221 to 221. [2021-11-25 20:30:30,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 221 states, 136 states have (on average 1.963235294117647) internal successors, (267), 216 states have internal predecessors, (267), 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) [2021-11-25 20:30:30,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 221 states to 221 states and 271 transitions. [2021-11-25 20:30:30,150 INFO L78 Accepts]: Start accepts. Automaton has 221 states and 271 transitions. Word has length 13 [2021-11-25 20:30:30,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:30:30,150 INFO L470 AbstractCegarLoop]: Abstraction has 221 states and 271 transitions. [2021-11-25 20:30:30,150 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:30:30,150 INFO L276 IsEmpty]: Start isEmpty. Operand 221 states and 271 transitions. [2021-11-25 20:30:30,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-11-25 20:30:30,151 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:30:30,151 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:30:30,165 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7106b7cb-d78c-4585-b02a-5b17cf140786/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-11-25 20:30:30,362 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7106b7cb-d78c-4585-b02a-5b17cf140786/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 [2021-11-25 20:30:30,362 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting create_dataErr5REQUIRES_VIOLATION === [create_dataErr0REQUIRES_VIOLATION, create_dataErr1REQUIRES_VIOLATION, create_dataErr2REQUIRES_VIOLATION, create_dataErr3REQUIRES_VIOLATION (and 88 more)] === [2021-11-25 20:30:30,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:30:30,363 INFO L85 PathProgramCache]: Analyzing trace with hash -1593893878, now seen corresponding path program 1 times [2021-11-25 20:30:30,363 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-25 20:30:30,363 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [767768050] [2021-11-25 20:30:30,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:30:30,363 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-25 20:30:30,363 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7106b7cb-d78c-4585-b02a-5b17cf140786/bin/utaipan-eEHZpOm5b7/mathsat [2021-11-25 20:30:30,364 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7106b7cb-d78c-4585-b02a-5b17cf140786/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-25 20:30:30,365 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7106b7cb-d78c-4585-b02a-5b17cf140786/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-11-25 20:30:30,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:30:30,445 INFO L263 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-25 20:30:30,446 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 20:30:30,480 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:30:30,481 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 11 [2021-11-25 20:30:30,490 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 20 treesize of output 18 [2021-11-25 20:30:30,511 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:30:30,511 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 20:30:30,512 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-25 20:30:30,512 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [767768050] [2021-11-25 20:30:30,512 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [767768050] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:30:30,512 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:30:30,512 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-25 20:30:30,513 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1807015494] [2021-11-25 20:30:30,513 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:30:30,513 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 20:30:30,513 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-25 20:30:30,514 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 20:30:30,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:30:30,514 INFO L87 Difference]: Start difference. First operand 221 states and 271 transitions. Second operand has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:30:30,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:30:30,887 INFO L93 Difference]: Finished difference Result 208 states and 243 transitions. [2021-11-25 20:30:30,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 20:30:30,887 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2021-11-25 20:30:30,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:30:30,889 INFO L225 Difference]: With dead ends: 208 [2021-11-25 20:30:30,889 INFO L226 Difference]: Without dead ends: 208 [2021-11-25 20:30:30,889 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:30:30,890 INFO L933 BasicCegarLoop]: 135 mSDtfsCounter, 59 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 198 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-11-25 20:30:30,890 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [59 Valid, 198 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-11-25 20:30:30,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 208 states. [2021-11-25 20:30:30,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 208 to 206. [2021-11-25 20:30:30,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 206 states, 136 states have (on average 1.7426470588235294) internal successors, (237), 201 states have internal predecessors, (237), 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) [2021-11-25 20:30:30,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 206 states and 241 transitions. [2021-11-25 20:30:30,897 INFO L78 Accepts]: Start accepts. Automaton has 206 states and 241 transitions. Word has length 13 [2021-11-25 20:30:30,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:30:30,897 INFO L470 AbstractCegarLoop]: Abstraction has 206 states and 241 transitions. [2021-11-25 20:30:30,897 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:30:30,897 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states and 241 transitions. [2021-11-25 20:30:30,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-11-25 20:30:30,898 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:30:30,898 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:30:30,915 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7106b7cb-d78c-4585-b02a-5b17cf140786/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-11-25 20:30:31,115 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7106b7cb-d78c-4585-b02a-5b17cf140786/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 [2021-11-25 20:30:31,115 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting create_dataErr10REQUIRES_VIOLATION === [create_dataErr0REQUIRES_VIOLATION, create_dataErr1REQUIRES_VIOLATION, create_dataErr2REQUIRES_VIOLATION, create_dataErr3REQUIRES_VIOLATION (and 88 more)] === [2021-11-25 20:30:31,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:30:31,116 INFO L85 PathProgramCache]: Analyzing trace with hash 1465867550, now seen corresponding path program 1 times [2021-11-25 20:30:31,116 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-25 20:30:31,116 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [265784317] [2021-11-25 20:30:31,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:30:31,117 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-25 20:30:31,117 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7106b7cb-d78c-4585-b02a-5b17cf140786/bin/utaipan-eEHZpOm5b7/mathsat [2021-11-25 20:30:31,118 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7106b7cb-d78c-4585-b02a-5b17cf140786/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-25 20:30:31,120 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7106b7cb-d78c-4585-b02a-5b17cf140786/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-11-25 20:30:31,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:30:31,207 INFO L263 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-25 20:30:31,208 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 20:30:31,246 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:30:31,246 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 20:30:31,246 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-25 20:30:31,246 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [265784317] [2021-11-25 20:30:31,246 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [265784317] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:30:31,247 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:30:31,247 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 20:30:31,247 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2048947627] [2021-11-25 20:30:31,247 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:30:31,248 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 20:30:31,248 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-25 20:30:31,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 20:30:31,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:30:31,249 INFO L87 Difference]: Start difference. First operand 206 states and 241 transitions. Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:30:31,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:30:31,289 INFO L93 Difference]: Finished difference Result 219 states and 257 transitions. [2021-11-25 20:30:31,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 20:30:31,290 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2021-11-25 20:30:31,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:30:31,291 INFO L225 Difference]: With dead ends: 219 [2021-11-25 20:30:31,292 INFO L226 Difference]: Without dead ends: 219 [2021-11-25 20:30:31,292 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:30:31,293 INFO L933 BasicCegarLoop]: 167 mSDtfsCounter, 7 mSDsluCounter, 165 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 332 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-25 20:30:31,293 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 332 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-25 20:30:31,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219 states. [2021-11-25 20:30:31,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219 to 208. [2021-11-25 20:30:31,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 208 states, 138 states have (on average 1.7318840579710144) internal successors, (239), 203 states have internal predecessors, (239), 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) [2021-11-25 20:30:31,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 243 transitions. [2021-11-25 20:30:31,300 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 243 transitions. Word has length 16 [2021-11-25 20:30:31,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:30:31,301 INFO L470 AbstractCegarLoop]: Abstraction has 208 states and 243 transitions. [2021-11-25 20:30:31,301 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:30:31,301 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 243 transitions. [2021-11-25 20:30:31,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-11-25 20:30:31,302 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:30:31,302 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:30:31,323 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7106b7cb-d78c-4585-b02a-5b17cf140786/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-11-25 20:30:31,513 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7106b7cb-d78c-4585-b02a-5b17cf140786/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 [2021-11-25 20:30:31,513 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting create_dataErr6REQUIRES_VIOLATION === [create_dataErr0REQUIRES_VIOLATION, create_dataErr1REQUIRES_VIOLATION, create_dataErr2REQUIRES_VIOLATION, create_dataErr3REQUIRES_VIOLATION (and 88 more)] === [2021-11-25 20:30:31,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:30:31,513 INFO L85 PathProgramCache]: Analyzing trace with hash 1465867600, now seen corresponding path program 1 times [2021-11-25 20:30:31,513 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-25 20:30:31,514 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1652241453] [2021-11-25 20:30:31,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:30:31,514 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-25 20:30:31,514 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7106b7cb-d78c-4585-b02a-5b17cf140786/bin/utaipan-eEHZpOm5b7/mathsat [2021-11-25 20:30:31,515 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7106b7cb-d78c-4585-b02a-5b17cf140786/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-25 20:30:31,517 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7106b7cb-d78c-4585-b02a-5b17cf140786/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-11-25 20:30:31,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:30:31,598 INFO L263 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-25 20:30:31,599 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 20:30:31,637 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:30:31,637 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 20:30:31,637 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-25 20:30:31,638 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1652241453] [2021-11-25 20:30:31,638 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1652241453] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:30:31,638 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:30:31,638 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-25 20:30:31,638 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1044140789] [2021-11-25 20:30:31,638 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:30:31,639 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 20:30:31,639 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-25 20:30:31,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 20:30:31,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:30:31,640 INFO L87 Difference]: Start difference. First operand 208 states and 243 transitions. Second operand has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:30:31,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:30:31,882 INFO L93 Difference]: Finished difference Result 196 states and 217 transitions. [2021-11-25 20:30:31,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 20:30:31,882 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2021-11-25 20:30:31,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:30:31,884 INFO L225 Difference]: With dead ends: 196 [2021-11-25 20:30:31,884 INFO L226 Difference]: Without dead ends: 196 [2021-11-25 20:30:31,884 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:30:31,885 INFO L933 BasicCegarLoop]: 135 mSDtfsCounter, 42 mSDsluCounter, 61 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 196 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-25 20:30:31,885 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [42 Valid, 196 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-25 20:30:31,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196 states. [2021-11-25 20:30:31,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196 to 194. [2021-11-25 20:30:31,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 194 states, 138 states have (on average 1.5289855072463767) internal successors, (211), 189 states have internal predecessors, (211), 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) [2021-11-25 20:30:31,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 215 transitions. [2021-11-25 20:30:31,892 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 215 transitions. Word has length 16 [2021-11-25 20:30:31,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:30:31,892 INFO L470 AbstractCegarLoop]: Abstraction has 194 states and 215 transitions. [2021-11-25 20:30:31,893 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:30:31,893 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 215 transitions. [2021-11-25 20:30:31,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-11-25 20:30:31,893 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:30:31,894 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:30:31,911 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7106b7cb-d78c-4585-b02a-5b17cf140786/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2021-11-25 20:30:32,111 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7106b7cb-d78c-4585-b02a-5b17cf140786/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 [2021-11-25 20:30:32,111 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting create_dataErr8REQUIRES_VIOLATION === [create_dataErr0REQUIRES_VIOLATION, create_dataErr1REQUIRES_VIOLATION, create_dataErr2REQUIRES_VIOLATION, create_dataErr3REQUIRES_VIOLATION (and 88 more)] === [2021-11-25 20:30:32,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:30:32,112 INFO L85 PathProgramCache]: Analyzing trace with hash -1802744652, now seen corresponding path program 1 times [2021-11-25 20:30:32,112 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-25 20:30:32,112 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [51377044] [2021-11-25 20:30:32,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:30:32,112 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-25 20:30:32,112 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7106b7cb-d78c-4585-b02a-5b17cf140786/bin/utaipan-eEHZpOm5b7/mathsat [2021-11-25 20:30:32,113 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7106b7cb-d78c-4585-b02a-5b17cf140786/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-25 20:30:32,114 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7106b7cb-d78c-4585-b02a-5b17cf140786/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2021-11-25 20:30:32,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:30:32,204 INFO L263 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-25 20:30:32,206 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 20:30:32,244 INFO L354 Elim1Store]: treesize reduction 8, result has 60.0 percent of original size [2021-11-25 20:30:32,245 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 1 case distinctions, treesize of input 9 treesize of output 18 [2021-11-25 20:30:32,271 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:30:32,298 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 26 treesize of output 14 [2021-11-25 20:30:32,307 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:30:32,307 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 20:30:32,307 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-25 20:30:32,308 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [51377044] [2021-11-25 20:30:32,308 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [51377044] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:30:32,308 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:30:32,308 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 20:30:32,308 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [887776373] [2021-11-25 20:30:32,308 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:30:32,308 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-25 20:30:32,309 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-25 20:30:32,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-25 20:30:32,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-25 20:30:32,309 INFO L87 Difference]: Start difference. First operand 194 states and 215 transitions. Second operand has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:30:32,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:30:32,805 INFO L93 Difference]: Finished difference Result 199 states and 221 transitions. [2021-11-25 20:30:32,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-25 20:30:32,805 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2021-11-25 20:30:32,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:30:32,807 INFO L225 Difference]: With dead ends: 199 [2021-11-25 20:30:32,807 INFO L226 Difference]: Without dead ends: 199 [2021-11-25 20:30:32,807 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-11-25 20:30:32,808 INFO L933 BasicCegarLoop]: 153 mSDtfsCounter, 4 mSDsluCounter, 249 mSDsCounter, 0 mSdLazyCounter, 221 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 402 SdHoareTripleChecker+Invalid, 223 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 221 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-11-25 20:30:32,808 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 402 Invalid, 223 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 221 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-11-25 20:30:32,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 199 states. [2021-11-25 20:30:32,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 199 to 198. [2021-11-25 20:30:32,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 198 states, 142 states have (on average 1.528169014084507) internal successors, (217), 193 states have internal predecessors, (217), 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) [2021-11-25 20:30:32,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 221 transitions. [2021-11-25 20:30:32,820 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 221 transitions. Word has length 17 [2021-11-25 20:30:32,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:30:32,821 INFO L470 AbstractCegarLoop]: Abstraction has 198 states and 221 transitions. [2021-11-25 20:30:32,821 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:30:32,821 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 221 transitions. [2021-11-25 20:30:32,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-11-25 20:30:32,822 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:30:32,822 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:30:32,830 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7106b7cb-d78c-4585-b02a-5b17cf140786/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2021-11-25 20:30:33,027 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7106b7cb-d78c-4585-b02a-5b17cf140786/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 [2021-11-25 20:30:33,027 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting create_dataErr9REQUIRES_VIOLATION === [create_dataErr0REQUIRES_VIOLATION, create_dataErr1REQUIRES_VIOLATION, create_dataErr2REQUIRES_VIOLATION, create_dataErr3REQUIRES_VIOLATION (and 88 more)] === [2021-11-25 20:30:33,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:30:33,028 INFO L85 PathProgramCache]: Analyzing trace with hash -1802744651, now seen corresponding path program 1 times [2021-11-25 20:30:33,028 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-25 20:30:33,028 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1315463871] [2021-11-25 20:30:33,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:30:33,029 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-25 20:30:33,029 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7106b7cb-d78c-4585-b02a-5b17cf140786/bin/utaipan-eEHZpOm5b7/mathsat [2021-11-25 20:30:33,030 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7106b7cb-d78c-4585-b02a-5b17cf140786/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-25 20:30:33,034 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7106b7cb-d78c-4585-b02a-5b17cf140786/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2021-11-25 20:30:33,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:30:33,119 INFO L263 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 13 conjunts are in the unsatisfiable core [2021-11-25 20:30:33,121 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 20:30:33,167 INFO L354 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2021-11-25 20:30:33,168 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 1 case distinctions, treesize of input 9 treesize of output 15 [2021-11-25 20:30:33,191 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:30:33,199 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:30:33,279 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 21 treesize of output 9 [2021-11-25 20:30:33,283 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 19 treesize of output 7 [2021-11-25 20:30:33,301 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:30:33,301 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 20:30:33,301 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-25 20:30:33,301 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1315463871] [2021-11-25 20:30:33,301 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1315463871] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:30:33,301 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:30:33,301 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-25 20:30:33,302 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1676203189] [2021-11-25 20:30:33,302 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:30:33,302 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-25 20:30:33,302 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-25 20:30:33,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-25 20:30:33,303 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-11-25 20:30:33,303 INFO L87 Difference]: Start difference. First operand 198 states and 221 transitions. Second operand has 6 states, 5 states have (on average 3.2) internal successors, (16), 6 states have internal predecessors, (16), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:30:33,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:30:33,932 INFO L93 Difference]: Finished difference Result 200 states and 221 transitions. [2021-11-25 20:30:33,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-25 20:30:33,933 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.2) internal successors, (16), 6 states have internal predecessors, (16), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2021-11-25 20:30:33,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:30:33,935 INFO L225 Difference]: With dead ends: 200 [2021-11-25 20:30:33,935 INFO L226 Difference]: Without dead ends: 200 [2021-11-25 20:30:33,935 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2021-11-25 20:30:33,936 INFO L933 BasicCegarLoop]: 153 mSDtfsCounter, 5 mSDsluCounter, 251 mSDsCounter, 0 mSdLazyCounter, 221 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 404 SdHoareTripleChecker+Invalid, 222 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 221 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-11-25 20:30:33,936 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5 Valid, 404 Invalid, 222 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 221 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-11-25 20:30:33,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 200 states. [2021-11-25 20:30:33,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 200 to 198. [2021-11-25 20:30:33,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 198 states, 142 states have (on average 1.5140845070422535) internal successors, (215), 193 states have internal predecessors, (215), 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) [2021-11-25 20:30:33,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 219 transitions. [2021-11-25 20:30:33,942 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 219 transitions. Word has length 17 [2021-11-25 20:30:33,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:30:33,942 INFO L470 AbstractCegarLoop]: Abstraction has 198 states and 219 transitions. [2021-11-25 20:30:33,943 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.2) internal successors, (16), 6 states have internal predecessors, (16), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:30:33,943 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 219 transitions. [2021-11-25 20:30:33,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-11-25 20:30:33,944 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:30:33,944 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:30:33,958 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7106b7cb-d78c-4585-b02a-5b17cf140786/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (14)] Ended with exit code 0 [2021-11-25 20:30:34,154 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7106b7cb-d78c-4585-b02a-5b17cf140786/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 [2021-11-25 20:30:34,155 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting create_dataErr8REQUIRES_VIOLATION === [create_dataErr0REQUIRES_VIOLATION, create_dataErr1REQUIRES_VIOLATION, create_dataErr2REQUIRES_VIOLATION, create_dataErr3REQUIRES_VIOLATION (and 88 more)] === [2021-11-25 20:30:34,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:30:34,155 INFO L85 PathProgramCache]: Analyzing trace with hash 1188184013, now seen corresponding path program 1 times [2021-11-25 20:30:34,156 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-25 20:30:34,156 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1884873810] [2021-11-25 20:30:34,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:30:34,156 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-25 20:30:34,156 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7106b7cb-d78c-4585-b02a-5b17cf140786/bin/utaipan-eEHZpOm5b7/mathsat [2021-11-25 20:30:34,157 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7106b7cb-d78c-4585-b02a-5b17cf140786/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-25 20:30:34,158 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7106b7cb-d78c-4585-b02a-5b17cf140786/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2021-11-25 20:30:34,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:30:34,317 INFO L263 TraceCheckSpWp]: Trace formula consists of 150 conjuncts, 12 conjunts are in the unsatisfiable core [2021-11-25 20:30:34,319 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 20:30:34,368 INFO L354 Elim1Store]: treesize reduction 12, result has 40.0 percent of original size [2021-11-25 20:30:34,374 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 30 treesize of output 32 [2021-11-25 20:30:34,416 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:30:34,503 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-11-25 20:30:34,504 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 37 treesize of output 38 [2021-11-25 20:30:34,543 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 16 [2021-11-25 20:30:34,556 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-25 20:30:34,556 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 20:30:34,601 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_228 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (_ bv1 1) (bvneg (bvneg (bvneg (select |c_#valid| (select (select (store |c_#memory_$Pointer$.base| |c_create_data_#t~mem9.base| v_ArrVal_228) c_create_data_~data~0.base) (bvadd c_create_data_~data~0.offset (_ bv4 32)))))))))) is different from false [2021-11-25 20:30:34,614 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_228 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (bvneg (bvneg (bvneg (select |c_#valid| (let ((.cse0 (bvadd c_create_data_~data~0.offset (_ bv4 32)))) (select (select (store |c_#memory_$Pointer$.base| (select (select |c_#memory_$Pointer$.base| c_create_data_~data~0.base) .cse0) v_ArrVal_228) c_create_data_~data~0.base) .cse0)))))) (_ bv1 1)))) is different from false [2021-11-25 20:30:34,638 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:30:34,638 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 31 [2021-11-25 20:30:34,641 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 52 treesize of output 40 [2021-11-25 20:30:34,646 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 19 treesize of output 15 [2021-11-25 20:30:34,728 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 3 not checked. [2021-11-25 20:30:34,729 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-25 20:30:34,729 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1884873810] [2021-11-25 20:30:34,729 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1884873810] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 20:30:34,729 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1217676709] [2021-11-25 20:30:34,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:30:34,730 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-25 20:30:34,730 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7106b7cb-d78c-4585-b02a-5b17cf140786/bin/utaipan-eEHZpOm5b7/cvc4 [2021-11-25 20:30:34,775 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7106b7cb-d78c-4585-b02a-5b17cf140786/bin/utaipan-eEHZpOm5b7/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-25 20:30:34,843 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7106b7cb-d78c-4585-b02a-5b17cf140786/bin/utaipan-eEHZpOm5b7/cvc4 --incremental --print-success --lang smt (16)] Waiting until timeout for monitored process [2021-11-25 20:30:35,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:30:35,082 INFO L263 TraceCheckSpWp]: Trace formula consists of 150 conjuncts, 12 conjunts are in the unsatisfiable core [2021-11-25 20:30:35,085 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 20:30:35,127 INFO L354 Elim1Store]: treesize reduction 12, result has 40.0 percent of original size [2021-11-25 20:30:35,128 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 30 treesize of output 32 [2021-11-25 20:30:35,169 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:30:35,218 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-11-25 20:30:35,219 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 37 treesize of output 38 [2021-11-25 20:30:35,258 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 16 [2021-11-25 20:30:35,262 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-25 20:30:35,262 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 20:30:35,341 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_270 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (bvneg (bvneg (bvneg (select |c_#valid| (let ((.cse0 (bvadd c_create_data_~data~0.offset (_ bv4 32)))) (select (select (store |c_#memory_$Pointer$.base| (select (select |c_#memory_$Pointer$.base| c_create_data_~data~0.base) .cse0) v_ArrVal_270) c_create_data_~data~0.base) .cse0)))))) (_ bv1 1)))) is different from false [2021-11-25 20:30:35,368 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:30:35,368 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 32 [2021-11-25 20:30:35,371 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 42 [2021-11-25 20:30:35,379 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 20 treesize of output 16 [2021-11-25 20:30:35,468 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 2 not checked. [2021-11-25 20:30:35,469 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1217676709] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 20:30:35,469 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1678289396] [2021-11-25 20:30:35,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:30:35,469 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:30:35,469 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7106b7cb-d78c-4585-b02a-5b17cf140786/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 20:30:35,475 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7106b7cb-d78c-4585-b02a-5b17cf140786/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 20:30:35,494 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7106b7cb-d78c-4585-b02a-5b17cf140786/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2021-11-25 20:30:35,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:30:35,582 INFO L263 TraceCheckSpWp]: Trace formula consists of 150 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-25 20:30:35,584 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 20:30:35,619 INFO L354 Elim1Store]: treesize reduction 12, result has 40.0 percent of original size [2021-11-25 20:30:35,620 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 30 treesize of output 32 [2021-11-25 20:30:35,652 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:30:35,708 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-11-25 20:30:35,709 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 40 [2021-11-25 20:30:35,753 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 16 [2021-11-25 20:30:35,756 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-25 20:30:35,756 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 20:30:35,785 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_312 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (bvneg (bvneg (bvneg (bvneg (select |c_#valid| (select (select (store |c_#memory_$Pointer$.base| |c_create_data_#t~mem9.base| v_ArrVal_312) c_create_data_~data~0.base) (bvadd c_create_data_~data~0.offset (_ bv4 32)))))))) (_ bv1 1)))) is different from false [2021-11-25 20:30:35,797 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_312 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (bvneg (bvneg (bvneg (bvneg (select |c_#valid| (let ((.cse0 (bvadd c_create_data_~data~0.offset (_ bv4 32)))) (select (select (store |c_#memory_$Pointer$.base| (select (select |c_#memory_$Pointer$.base| c_create_data_~data~0.base) .cse0) v_ArrVal_312) c_create_data_~data~0.base) .cse0))))))) (_ bv1 1)))) is different from false [2021-11-25 20:30:35,818 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:30:35,818 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 33 [2021-11-25 20:30:35,821 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 56 treesize of output 44 [2021-11-25 20:30:35,825 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 21 treesize of output 17 [2021-11-25 20:30:35,885 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 3 not checked. [2021-11-25 20:30:35,885 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1678289396] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 20:30:35,885 INFO L186 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2021-11-25 20:30:35,886 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6, 5, 6, 5, 6] total 13 [2021-11-25 20:30:35,886 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1200430910] [2021-11-25 20:30:35,886 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2021-11-25 20:30:35,887 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-11-25 20:30:35,887 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-25 20:30:35,887 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-11-25 20:30:35,887 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=54, Unknown=7, NotChecked=90, Total=182 [2021-11-25 20:30:35,888 INFO L87 Difference]: Start difference. First operand 198 states and 219 transitions. Second operand has 14 states, 13 states have (on average 3.076923076923077) internal successors, (40), 14 states have internal predecessors, (40), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:30:36,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:30:36,715 INFO L93 Difference]: Finished difference Result 203 states and 223 transitions. [2021-11-25 20:30:36,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-25 20:30:36,716 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 3.076923076923077) internal successors, (40), 14 states have internal predecessors, (40), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2021-11-25 20:30:36,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:30:36,718 INFO L225 Difference]: With dead ends: 203 [2021-11-25 20:30:36,718 INFO L226 Difference]: Without dead ends: 203 [2021-11-25 20:30:36,718 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 109 SyntacticMatches, 7 SemanticMatches, 13 ConstructedPredicates, 5 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=37, Invalid=66, Unknown=7, NotChecked=100, Total=210 [2021-11-25 20:30:36,719 INFO L933 BasicCegarLoop]: 142 mSDtfsCounter, 26 mSDsluCounter, 779 mSDsCounter, 0 mSdLazyCounter, 297 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 921 SdHoareTripleChecker+Invalid, 915 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 297 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 611 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-11-25 20:30:36,719 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [26 Valid, 921 Invalid, 915 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 297 Invalid, 0 Unknown, 611 Unchecked, 0.7s Time] [2021-11-25 20:30:36,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 203 states. [2021-11-25 20:30:36,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 203 to 197. [2021-11-25 20:30:36,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 197 states, 142 states have (on average 1.5) internal successors, (213), 192 states have internal predecessors, (213), 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) [2021-11-25 20:30:36,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 217 transitions. [2021-11-25 20:30:36,726 INFO L78 Accepts]: Start accepts. Automaton has 197 states and 217 transitions. Word has length 22 [2021-11-25 20:30:36,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:30:36,727 INFO L470 AbstractCegarLoop]: Abstraction has 197 states and 217 transitions. [2021-11-25 20:30:36,727 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 3.076923076923077) internal successors, (40), 14 states have internal predecessors, (40), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:30:36,727 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 217 transitions. [2021-11-25 20:30:36,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-11-25 20:30:36,728 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:30:36,728 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:30:36,765 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7106b7cb-d78c-4585-b02a-5b17cf140786/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2021-11-25 20:30:36,949 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7106b7cb-d78c-4585-b02a-5b17cf140786/bin/utaipan-eEHZpOm5b7/cvc4 --incremental --print-success --lang smt (16)] Forceful destruction successful, exit code 0 [2021-11-25 20:30:37,154 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7106b7cb-d78c-4585-b02a-5b17cf140786/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (15)] Ended with exit code 0 [2021-11-25 20:30:37,347 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7106b7cb-d78c-4585-b02a-5b17cf140786/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true,16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7106b7cb-d78c-4585-b02a-5b17cf140786/bin/utaipan-eEHZpOm5b7/cvc4 --incremental --print-success --lang smt,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7106b7cb-d78c-4585-b02a-5b17cf140786/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 [2021-11-25 20:30:37,347 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting create_dataErr9REQUIRES_VIOLATION === [create_dataErr0REQUIRES_VIOLATION, create_dataErr1REQUIRES_VIOLATION, create_dataErr2REQUIRES_VIOLATION, create_dataErr3REQUIRES_VIOLATION (and 88 more)] === [2021-11-25 20:30:37,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:30:37,348 INFO L85 PathProgramCache]: Analyzing trace with hash 1188184014, now seen corresponding path program 1 times [2021-11-25 20:30:37,348 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-25 20:30:37,348 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1776227354] [2021-11-25 20:30:37,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:30:37,348 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-25 20:30:37,348 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7106b7cb-d78c-4585-b02a-5b17cf140786/bin/utaipan-eEHZpOm5b7/mathsat [2021-11-25 20:30:37,349 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7106b7cb-d78c-4585-b02a-5b17cf140786/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-25 20:30:37,353 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7106b7cb-d78c-4585-b02a-5b17cf140786/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2021-11-25 20:30:37,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:30:37,524 INFO L263 TraceCheckSpWp]: Trace formula consists of 150 conjuncts, 19 conjunts are in the unsatisfiable core [2021-11-25 20:30:37,526 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 20:30:37,581 INFO L354 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2021-11-25 20:30:37,582 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 1 case distinctions, treesize of input 9 treesize of output 15 [2021-11-25 20:30:37,592 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 20 treesize of output 18 [2021-11-25 20:30:37,627 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:30:37,637 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:30:37,803 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-11-25 20:30:37,803 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 46 treesize of output 45 [2021-11-25 20:30:37,810 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 24 [2021-11-25 20:30:37,917 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 31 treesize of output 13 [2021-11-25 20:30:37,924 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2021-11-25 20:30:37,949 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:30:37,949 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 20:30:38,425 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_357 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (select (store |c_#memory_$Pointer$.offset| |c_create_data_#t~mem9.base| v_ArrVal_357) c_create_data_~data~0.base) (bvadd c_create_data_~data~0.offset (_ bv4 32)))) (.cse1 (bvmul c_create_data_~counter~0 (_ bv4 32)))) (bvule (bvadd (_ bv4 32) .cse0 .cse1) (bvadd (_ bv8 32) .cse0 .cse1)))) (forall ((v_ArrVal_356 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_357 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse2 (bvadd c_create_data_~data~0.offset (_ bv4 32)))) (bvule (bvadd (_ bv8 32) (select (select (store |c_#memory_$Pointer$.offset| |c_create_data_#t~mem9.base| v_ArrVal_357) c_create_data_~data~0.base) .cse2) (bvmul c_create_data_~counter~0 (_ bv4 32))) (select |c_#length| (select (select (store |c_#memory_$Pointer$.base| |c_create_data_#t~mem9.base| v_ArrVal_356) c_create_data_~data~0.base) .cse2)))))) is different from false [2021-11-25 20:30:38,498 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_357 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (let ((.cse2 (bvadd c_create_data_~data~0.offset (_ bv4 32)))) (select (select (store |c_#memory_$Pointer$.offset| (select (select |c_#memory_$Pointer$.base| c_create_data_~data~0.base) .cse2) v_ArrVal_357) c_create_data_~data~0.base) .cse2))) (.cse1 (bvmul c_create_data_~counter~0 (_ bv4 32)))) (bvule (bvadd (_ bv4 32) .cse0 .cse1) (bvadd (_ bv8 32) .cse0 .cse1)))) (forall ((v_ArrVal_356 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_357 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse4 (bvadd c_create_data_~data~0.offset (_ bv4 32)))) (let ((.cse3 (select (select |c_#memory_$Pointer$.base| c_create_data_~data~0.base) .cse4))) (bvule (bvadd (_ bv8 32) (select (select (store |c_#memory_$Pointer$.offset| .cse3 v_ArrVal_357) c_create_data_~data~0.base) .cse4) (bvmul c_create_data_~counter~0 (_ bv4 32))) (select |c_#length| (select (select (store |c_#memory_$Pointer$.base| .cse3 v_ArrVal_356) c_create_data_~data~0.base) .cse4))))))) is different from false [2021-11-25 20:30:38,570 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_356 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_357 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse1 (bvadd c_create_data_~data~0.offset (_ bv4 32)))) (let ((.cse0 (select (select |c_#memory_$Pointer$.base| c_create_data_~data~0.base) .cse1))) (bvule (bvadd (_ bv8 32) (select (select (store |c_#memory_$Pointer$.offset| .cse0 v_ArrVal_357) c_create_data_~data~0.base) .cse1)) (select |c_#length| (select (select (store |c_#memory_$Pointer$.base| .cse0 v_ArrVal_356) c_create_data_~data~0.base) .cse1)))))) (forall ((v_ArrVal_357 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse2 (let ((.cse3 (bvadd c_create_data_~data~0.offset (_ bv4 32)))) (select (select (store |c_#memory_$Pointer$.offset| (select (select |c_#memory_$Pointer$.base| c_create_data_~data~0.base) .cse3) v_ArrVal_357) c_create_data_~data~0.base) .cse3)))) (bvule (bvadd (_ bv4 32) .cse2) (bvadd (_ bv8 32) .cse2))))) is different from false [2021-11-25 20:30:38,589 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:30:38,589 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 45 treesize of output 46 [2021-11-25 20:30:38,600 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:30:38,600 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 36 [2021-11-25 20:30:38,605 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 62 treesize of output 50 [2021-11-25 20:30:38,608 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 96 treesize of output 78 [2021-11-25 20:30:38,617 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 40 treesize of output 32 [2021-11-25 20:30:38,620 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 66 treesize of output 58 [2021-11-25 20:30:38,747 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:30:38,748 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 45 treesize of output 36 [2021-11-25 20:30:38,751 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 54 treesize of output 36 [2021-11-25 20:30:38,757 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 19 treesize of output 11 [2021-11-25 20:30:38,922 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 3 not checked. [2021-11-25 20:30:38,922 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-25 20:30:38,923 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1776227354] [2021-11-25 20:30:38,923 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1776227354] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 20:30:38,923 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1326002568] [2021-11-25 20:30:38,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:30:38,923 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-25 20:30:38,923 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7106b7cb-d78c-4585-b02a-5b17cf140786/bin/utaipan-eEHZpOm5b7/cvc4 [2021-11-25 20:30:38,927 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7106b7cb-d78c-4585-b02a-5b17cf140786/bin/utaipan-eEHZpOm5b7/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-25 20:30:38,955 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7106b7cb-d78c-4585-b02a-5b17cf140786/bin/utaipan-eEHZpOm5b7/cvc4 --incremental --print-success --lang smt (19)] Waiting until timeout for monitored process [2021-11-25 20:30:39,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:30:39,225 INFO L263 TraceCheckSpWp]: Trace formula consists of 150 conjuncts, 19 conjunts are in the unsatisfiable core [2021-11-25 20:30:39,227 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 20:30:39,269 INFO L354 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2021-11-25 20:30:39,270 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 1 case distinctions, treesize of input 9 treesize of output 15 [2021-11-25 20:30:39,279 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 20 treesize of output 18 [2021-11-25 20:30:39,307 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:30:39,318 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:30:39,414 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-11-25 20:30:39,415 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 46 treesize of output 45 [2021-11-25 20:30:39,421 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 24 [2021-11-25 20:30:39,500 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 31 treesize of output 13 [2021-11-25 20:30:39,507 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2021-11-25 20:30:39,513 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:30:39,514 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 20:30:39,694 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_402 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (select (store |c_#memory_$Pointer$.offset| |c_create_data_#t~mem9.base| v_ArrVal_402) c_create_data_~data~0.base) (bvadd c_create_data_~data~0.offset (_ bv4 32)))) (.cse1 (bvmul c_create_data_~counter~0 (_ bv4 32)))) (bvule (bvadd (_ bv4 32) .cse0 .cse1) (bvadd (_ bv8 32) .cse0 .cse1)))) (forall ((v_ArrVal_401 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_402 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse2 (bvadd c_create_data_~data~0.offset (_ bv4 32)))) (bvule (bvadd (_ bv8 32) (select (select (store |c_#memory_$Pointer$.offset| |c_create_data_#t~mem9.base| v_ArrVal_402) c_create_data_~data~0.base) .cse2) (bvmul c_create_data_~counter~0 (_ bv4 32))) (select |c_#length| (select (select (store |c_#memory_$Pointer$.base| |c_create_data_#t~mem9.base| v_ArrVal_401) c_create_data_~data~0.base) .cse2)))))) is different from false [2021-11-25 20:30:39,748 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_401 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_402 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse1 (bvadd c_create_data_~data~0.offset (_ bv4 32)))) (let ((.cse0 (select (select |c_#memory_$Pointer$.base| c_create_data_~data~0.base) .cse1))) (bvule (bvadd (select (select (store |c_#memory_$Pointer$.offset| .cse0 v_ArrVal_402) c_create_data_~data~0.base) .cse1) (_ bv8 32) (bvmul c_create_data_~counter~0 (_ bv4 32))) (select |c_#length| (select (select (store |c_#memory_$Pointer$.base| .cse0 v_ArrVal_401) c_create_data_~data~0.base) .cse1)))))) (forall ((v_ArrVal_402 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse2 (let ((.cse4 (bvadd c_create_data_~data~0.offset (_ bv4 32)))) (select (select (store |c_#memory_$Pointer$.offset| (select (select |c_#memory_$Pointer$.base| c_create_data_~data~0.base) .cse4) v_ArrVal_402) c_create_data_~data~0.base) .cse4))) (.cse3 (bvmul c_create_data_~counter~0 (_ bv4 32)))) (bvule (bvadd .cse2 (_ bv4 32) .cse3) (bvadd .cse2 (_ bv8 32) .cse3))))) is different from false [2021-11-25 20:30:39,822 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_402 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (let ((.cse1 (bvadd c_create_data_~data~0.offset (_ bv4 32)))) (select (select (store |c_#memory_$Pointer$.offset| (select (select |c_#memory_$Pointer$.base| c_create_data_~data~0.base) .cse1) v_ArrVal_402) c_create_data_~data~0.base) .cse1)))) (bvule (bvadd .cse0 (_ bv4 32)) (bvadd .cse0 (_ bv8 32))))) (forall ((v_ArrVal_401 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_402 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse3 (bvadd c_create_data_~data~0.offset (_ bv4 32)))) (let ((.cse2 (select (select |c_#memory_$Pointer$.base| c_create_data_~data~0.base) .cse3))) (bvule (bvadd (select (select (store |c_#memory_$Pointer$.offset| .cse2 v_ArrVal_402) c_create_data_~data~0.base) .cse3) (_ bv8 32)) (select |c_#length| (select (select (store |c_#memory_$Pointer$.base| .cse2 v_ArrVal_401) c_create_data_~data~0.base) .cse3))))))) is different from false [2021-11-25 20:30:39,847 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:30:39,848 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 45 treesize of output 36 [2021-11-25 20:30:39,850 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 54 treesize of output 36 [2021-11-25 20:30:39,859 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 19 treesize of output 11 [2021-11-25 20:30:39,894 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:30:39,902 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 45 treesize of output 46 [2021-11-25 20:30:39,920 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:30:39,920 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 36 [2021-11-25 20:30:39,924 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:30:39,928 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 21 [2021-11-25 20:30:39,933 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:30:39,936 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 12 [2021-11-25 20:30:40,052 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 3 not checked. [2021-11-25 20:30:40,053 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1326002568] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 20:30:40,053 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [556592991] [2021-11-25 20:30:40,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:30:40,053 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:30:40,053 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7106b7cb-d78c-4585-b02a-5b17cf140786/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 20:30:40,055 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7106b7cb-d78c-4585-b02a-5b17cf140786/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 20:30:40,086 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7106b7cb-d78c-4585-b02a-5b17cf140786/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2021-11-25 20:30:40,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:30:40,180 INFO L263 TraceCheckSpWp]: Trace formula consists of 150 conjuncts, 19 conjunts are in the unsatisfiable core [2021-11-25 20:30:40,183 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 20:30:40,229 INFO L354 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2021-11-25 20:30:40,229 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 1 case distinctions, treesize of input 9 treesize of output 15 [2021-11-25 20:30:40,239 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 20 treesize of output 18 [2021-11-25 20:30:40,267 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:30:40,278 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:30:40,377 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-11-25 20:30:40,378 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 46 treesize of output 45 [2021-11-25 20:30:40,384 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 24 [2021-11-25 20:30:40,465 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 31 treesize of output 13 [2021-11-25 20:30:40,476 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2021-11-25 20:30:40,482 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:30:40,482 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 20:30:40,686 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_446 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_447 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (bvadd c_create_data_~data~0.offset (_ bv4 32)))) (bvule (bvadd (_ bv8 32) (bvmul c_create_data_~counter~0 (_ bv4 32)) (select (select (store |c_#memory_$Pointer$.offset| |c_create_data_#t~mem9.base| v_ArrVal_447) c_create_data_~data~0.base) .cse0)) (select |c_#length| (select (select (store |c_#memory_$Pointer$.base| |c_create_data_#t~mem9.base| v_ArrVal_446) c_create_data_~data~0.base) .cse0))))) (forall ((v_ArrVal_447 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse1 (bvmul c_create_data_~counter~0 (_ bv4 32))) (.cse2 (select (select (store |c_#memory_$Pointer$.offset| |c_create_data_#t~mem9.base| v_ArrVal_447) c_create_data_~data~0.base) (bvadd c_create_data_~data~0.offset (_ bv4 32))))) (bvule (bvadd (_ bv4 32) .cse1 .cse2) (bvadd (_ bv8 32) .cse1 .cse2))))) is different from false [2021-11-25 20:30:40,753 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_447 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (bvmul c_create_data_~counter~0 (_ bv4 32))) (.cse1 (let ((.cse2 (bvadd c_create_data_~data~0.offset (_ bv4 32)))) (select (select (store |c_#memory_$Pointer$.offset| (select (select |c_#memory_$Pointer$.base| c_create_data_~data~0.base) .cse2) v_ArrVal_447) c_create_data_~data~0.base) .cse2)))) (bvule (bvadd (_ bv4 32) .cse0 .cse1) (bvadd (_ bv8 32) .cse0 .cse1)))) (forall ((v_ArrVal_446 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_447 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse4 (bvadd c_create_data_~data~0.offset (_ bv4 32)))) (let ((.cse3 (select (select |c_#memory_$Pointer$.base| c_create_data_~data~0.base) .cse4))) (bvule (bvadd (_ bv8 32) (bvmul c_create_data_~counter~0 (_ bv4 32)) (select (select (store |c_#memory_$Pointer$.offset| .cse3 v_ArrVal_447) c_create_data_~data~0.base) .cse4)) (select |c_#length| (select (select (store |c_#memory_$Pointer$.base| .cse3 v_ArrVal_446) c_create_data_~data~0.base) .cse4))))))) is different from false [2021-11-25 20:30:40,833 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_447 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (let ((.cse1 (bvadd c_create_data_~data~0.offset (_ bv4 32)))) (select (select (store |c_#memory_$Pointer$.offset| (select (select |c_#memory_$Pointer$.base| c_create_data_~data~0.base) .cse1) v_ArrVal_447) c_create_data_~data~0.base) .cse1)))) (bvule (bvadd (_ bv4 32) .cse0) (bvadd (_ bv8 32) .cse0)))) (forall ((v_ArrVal_446 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_447 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse3 (bvadd c_create_data_~data~0.offset (_ bv4 32)))) (let ((.cse2 (select (select |c_#memory_$Pointer$.base| c_create_data_~data~0.base) .cse3))) (bvule (bvadd (_ bv8 32) (select (select (store |c_#memory_$Pointer$.offset| .cse2 v_ArrVal_447) c_create_data_~data~0.base) .cse3)) (select |c_#length| (select (select (store |c_#memory_$Pointer$.base| .cse2 v_ArrVal_446) c_create_data_~data~0.base) .cse3))))))) is different from false [2021-11-25 20:30:40,854 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:30:40,854 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 45 treesize of output 36 [2021-11-25 20:30:40,857 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 54 treesize of output 36 [2021-11-25 20:30:40,863 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 19 treesize of output 11 [2021-11-25 20:30:40,886 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:30:40,887 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 45 treesize of output 46 [2021-11-25 20:30:40,904 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:30:40,904 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 36 [2021-11-25 20:30:40,909 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:30:40,913 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 21 [2021-11-25 20:30:40,916 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:30:40,919 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 12 [2021-11-25 20:30:40,943 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 3 not checked. [2021-11-25 20:30:40,943 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [556592991] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 20:30:40,943 INFO L186 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2021-11-25 20:30:40,944 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8, 7, 8, 7, 8] total 21 [2021-11-25 20:30:40,944 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1399788453] [2021-11-25 20:30:40,944 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2021-11-25 20:30:40,945 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2021-11-25 20:30:40,945 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-25 20:30:40,945 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-11-25 20:30:40,946 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=127, Unknown=9, NotChecked=270, Total=462 [2021-11-25 20:30:40,946 INFO L87 Difference]: Start difference. First operand 197 states and 217 transitions. Second operand has 22 states, 21 states have (on average 2.0476190476190474) internal successors, (43), 22 states have internal predecessors, (43), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:30:44,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:30:44,089 INFO L93 Difference]: Finished difference Result 209 states and 229 transitions. [2021-11-25 20:30:44,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-25 20:30:44,090 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 2.0476190476190474) internal successors, (43), 22 states have internal predecessors, (43), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2021-11-25 20:30:44,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:30:44,091 INFO L225 Difference]: With dead ends: 209 [2021-11-25 20:30:44,091 INFO L226 Difference]: Without dead ends: 209 [2021-11-25 20:30:44,092 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 107 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 9 IntricatePredicates, 1 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=78, Invalid=189, Unknown=9, NotChecked=324, Total=600 [2021-11-25 20:30:44,093 INFO L933 BasicCegarLoop]: 152 mSDtfsCounter, 12 mSDsluCounter, 1385 mSDsCounter, 0 mSdLazyCounter, 610 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 1537 SdHoareTripleChecker+Invalid, 1364 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 610 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 744 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2021-11-25 20:30:44,093 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [12 Valid, 1537 Invalid, 1364 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 610 Invalid, 0 Unknown, 744 Unchecked, 2.7s Time] [2021-11-25 20:30:44,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 209 states. [2021-11-25 20:30:44,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 209 to 207. [2021-11-25 20:30:44,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 207 states, 152 states have (on average 1.4671052631578947) internal successors, (223), 202 states have internal predecessors, (223), 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) [2021-11-25 20:30:44,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 227 transitions. [2021-11-25 20:30:44,101 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 227 transitions. Word has length 22 [2021-11-25 20:30:44,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:30:44,101 INFO L470 AbstractCegarLoop]: Abstraction has 207 states and 227 transitions. [2021-11-25 20:30:44,101 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 2.0476190476190474) internal successors, (43), 22 states have internal predecessors, (43), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:30:44,102 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 227 transitions. [2021-11-25 20:30:44,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-25 20:30:44,102 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:30:44,103 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:30:44,130 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7106b7cb-d78c-4585-b02a-5b17cf140786/bin/utaipan-eEHZpOm5b7/cvc4 --incremental --print-success --lang smt (19)] Ended with exit code 0 [2021-11-25 20:30:44,339 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7106b7cb-d78c-4585-b02a-5b17cf140786/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2021-11-25 20:30:44,528 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7106b7cb-d78c-4585-b02a-5b17cf140786/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2021-11-25 20:30:44,719 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7106b7cb-d78c-4585-b02a-5b17cf140786/bin/utaipan-eEHZpOm5b7/cvc4 --incremental --print-success --lang smt,20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7106b7cb-d78c-4585-b02a-5b17cf140786/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true,18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7106b7cb-d78c-4585-b02a-5b17cf140786/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 [2021-11-25 20:30:44,720 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting create_dataErr9REQUIRES_VIOLATION === [create_dataErr0REQUIRES_VIOLATION, create_dataErr1REQUIRES_VIOLATION, create_dataErr2REQUIRES_VIOLATION, create_dataErr3REQUIRES_VIOLATION (and 88 more)] === [2021-11-25 20:30:44,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:30:44,720 INFO L85 PathProgramCache]: Analyzing trace with hash 200627285, now seen corresponding path program 2 times [2021-11-25 20:30:44,721 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-25 20:30:44,721 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [98802820] [2021-11-25 20:30:44,721 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-25 20:30:44,721 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-25 20:30:44,721 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7106b7cb-d78c-4585-b02a-5b17cf140786/bin/utaipan-eEHZpOm5b7/mathsat [2021-11-25 20:30:44,725 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7106b7cb-d78c-4585-b02a-5b17cf140786/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-25 20:30:44,760 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7106b7cb-d78c-4585-b02a-5b17cf140786/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2021-11-25 20:30:44,981 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-25 20:30:44,981 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-25 20:30:44,993 INFO L263 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 23 conjunts are in the unsatisfiable core [2021-11-25 20:30:44,996 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 20:30:45,022 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 20 treesize of output 18 [2021-11-25 20:30:45,038 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 11 [2021-11-25 20:30:45,062 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:30:45,074 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:30:45,230 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-11-25 20:30:45,230 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 46 treesize of output 45 [2021-11-25 20:30:45,237 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 24 [2021-11-25 20:30:45,409 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-11-25 20:30:45,409 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 46 treesize of output 45 [2021-11-25 20:30:45,414 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 24 [2021-11-25 20:30:45,537 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 31 treesize of output 13 [2021-11-25 20:30:45,543 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2021-11-25 20:30:45,570 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:30:45,570 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 20:30:46,074 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_508 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (bvmul c_create_data_~counter~0 (_ bv4 32))) (.cse1 (select (select (store |c_#memory_$Pointer$.offset| |c_create_data_#t~mem9.base| v_ArrVal_508) c_create_data_~data~0.base) (bvadd c_create_data_~data~0.offset (_ bv4 32))))) (bvule (bvadd (_ bv4 32) .cse0 .cse1) (bvadd (_ bv8 32) .cse0 .cse1)))) (forall ((v_ArrVal_509 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_508 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse2 (bvadd c_create_data_~data~0.offset (_ bv4 32)))) (bvule (bvadd (_ bv8 32) (bvmul c_create_data_~counter~0 (_ bv4 32)) (select (select (store |c_#memory_$Pointer$.offset| |c_create_data_#t~mem9.base| v_ArrVal_508) c_create_data_~data~0.base) .cse2)) (select |c_#length| (select (select (store |c_#memory_$Pointer$.base| |c_create_data_#t~mem9.base| v_ArrVal_509) c_create_data_~data~0.base) .cse2)))))) is different from false [2021-11-25 20:30:46,124 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_509 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_508 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse1 (bvadd c_create_data_~data~0.offset (_ bv4 32)))) (let ((.cse0 (select (select |c_#memory_$Pointer$.base| c_create_data_~data~0.base) .cse1))) (bvule (bvadd (_ bv8 32) (bvmul c_create_data_~counter~0 (_ bv4 32)) (select (select (store |c_#memory_$Pointer$.offset| .cse0 v_ArrVal_508) c_create_data_~data~0.base) .cse1)) (select |c_#length| (select (select (store |c_#memory_$Pointer$.base| .cse0 v_ArrVal_509) c_create_data_~data~0.base) .cse1)))))) (forall ((v_ArrVal_508 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse2 (bvmul c_create_data_~counter~0 (_ bv4 32))) (.cse3 (let ((.cse4 (bvadd c_create_data_~data~0.offset (_ bv4 32)))) (select (select (store |c_#memory_$Pointer$.offset| (select (select |c_#memory_$Pointer$.base| c_create_data_~data~0.base) .cse4) v_ArrVal_508) c_create_data_~data~0.base) .cse4)))) (bvule (bvadd (_ bv4 32) .cse2 .cse3) (bvadd (_ bv8 32) .cse2 .cse3))))) is different from false [2021-11-25 20:30:46,194 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_508 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (bvmul c_create_data_~counter~0 (_ bv4 32))) (.cse1 (let ((.cse2 (bvadd c_create_data_~data~0.offset (_ bv4 32)))) (select (select (store |c_#memory_$Pointer$.offset| (select (select |c_#memory_$Pointer$.base| c_create_data_~data~0.base) .cse2) v_ArrVal_508) c_create_data_~data~0.base) .cse2)))) (bvule (bvadd (_ bv8 32) .cse0 .cse1) (bvadd .cse0 .cse1 (_ bv12 32))))) (forall ((v_ArrVal_509 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_508 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse4 (bvadd c_create_data_~data~0.offset (_ bv4 32)))) (let ((.cse3 (select (select |c_#memory_$Pointer$.base| c_create_data_~data~0.base) .cse4))) (bvule (bvadd (bvmul c_create_data_~counter~0 (_ bv4 32)) (select (select (store |c_#memory_$Pointer$.offset| .cse3 v_ArrVal_508) c_create_data_~data~0.base) .cse4) (_ bv12 32)) (select |c_#length| (select (select (store |c_#memory_$Pointer$.base| .cse3 v_ArrVal_509) c_create_data_~data~0.base) .cse4))))))) is different from false [2021-11-25 20:30:46,286 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_509 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_506 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_507 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_508 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse2 (store |c_#memory_$Pointer$.base| |c_create_data_#t~mem9.base| v_ArrVal_506)) (.cse1 (bvadd c_create_data_~data~0.offset (_ bv4 32)))) (let ((.cse0 (select (select .cse2 c_create_data_~data~0.base) .cse1))) (bvule (bvadd (select (select (store (store |c_#memory_$Pointer$.offset| |c_create_data_#t~mem9.base| v_ArrVal_507) .cse0 v_ArrVal_508) c_create_data_~data~0.base) .cse1) (bvmul c_create_data_~counter~0 (_ bv4 32)) (_ bv12 32)) (select |c_#length| (select (select (store .cse2 .cse0 v_ArrVal_509) c_create_data_~data~0.base) .cse1)))))) (forall ((v_ArrVal_506 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_507 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_508 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse3 (let ((.cse5 (bvadd c_create_data_~data~0.offset (_ bv4 32)))) (select (select (store (store |c_#memory_$Pointer$.offset| |c_create_data_#t~mem9.base| v_ArrVal_507) (select (select (store |c_#memory_$Pointer$.base| |c_create_data_#t~mem9.base| v_ArrVal_506) c_create_data_~data~0.base) .cse5) v_ArrVal_508) c_create_data_~data~0.base) .cse5))) (.cse4 (bvmul c_create_data_~counter~0 (_ bv4 32)))) (bvule (bvadd (_ bv8 32) .cse3 .cse4) (bvadd .cse3 .cse4 (_ bv12 32)))))) is different from false [2021-11-25 20:30:46,707 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_506 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_507 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_508 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (let ((.cse3 (bvadd c_create_data_~data~0.offset (_ bv4 32)))) (select (select (let ((.cse2 (select (select |c_#memory_$Pointer$.base| c_create_data_~data~0.base) .cse3))) (store (store |c_#memory_$Pointer$.offset| .cse2 v_ArrVal_507) (select (select (store |c_#memory_$Pointer$.base| .cse2 v_ArrVal_506) c_create_data_~data~0.base) .cse3) v_ArrVal_508)) c_create_data_~data~0.base) .cse3))) (.cse1 (bvmul c_create_data_~counter~0 (_ bv4 32)))) (bvule (bvadd .cse0 (_ bv8 32) .cse1) (bvadd .cse0 .cse1 (_ bv12 32))))) (forall ((v_ArrVal_509 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_506 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_507 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_508 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse6 (bvadd c_create_data_~data~0.offset (_ bv4 32)))) (let ((.cse4 (select (select |c_#memory_$Pointer$.base| c_create_data_~data~0.base) .cse6))) (let ((.cse7 (store |c_#memory_$Pointer$.base| .cse4 v_ArrVal_506))) (let ((.cse5 (select (select .cse7 c_create_data_~data~0.base) .cse6))) (bvule (bvadd (select (select (store (store |c_#memory_$Pointer$.offset| .cse4 v_ArrVal_507) .cse5 v_ArrVal_508) c_create_data_~data~0.base) .cse6) (bvmul c_create_data_~counter~0 (_ bv4 32)) (_ bv12 32)) (select |c_#length| (select (select (store .cse7 .cse5 v_ArrVal_509) c_create_data_~data~0.base) .cse6))))))))) is different from false [2021-11-25 20:30:46,794 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_509 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_506 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_507 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_508 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse2 (bvadd c_create_data_~data~0.offset (_ bv4 32)))) (let ((.cse0 (select (select |c_#memory_$Pointer$.base| c_create_data_~data~0.base) .cse2))) (let ((.cse3 (store |c_#memory_$Pointer$.base| .cse0 v_ArrVal_506))) (let ((.cse1 (select (select .cse3 c_create_data_~data~0.base) .cse2))) (bvule (bvadd (select (select (store (store |c_#memory_$Pointer$.offset| .cse0 v_ArrVal_507) .cse1 v_ArrVal_508) c_create_data_~data~0.base) .cse2) (_ bv12 32)) (select |c_#length| (select (select (store .cse3 .cse1 v_ArrVal_509) c_create_data_~data~0.base) .cse2)))))))) (forall ((v_ArrVal_506 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_507 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_508 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse4 (let ((.cse6 (bvadd c_create_data_~data~0.offset (_ bv4 32)))) (select (select (let ((.cse5 (select (select |c_#memory_$Pointer$.base| c_create_data_~data~0.base) .cse6))) (store (store |c_#memory_$Pointer$.offset| .cse5 v_ArrVal_507) (select (select (store |c_#memory_$Pointer$.base| .cse5 v_ArrVal_506) c_create_data_~data~0.base) .cse6) v_ArrVal_508)) c_create_data_~data~0.base) .cse6)))) (bvule (bvadd .cse4 (_ bv8 32)) (bvadd .cse4 (_ bv12 32)))))) is different from false [2021-11-25 20:30:46,815 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:30:46,815 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 89 treesize of output 90 [2021-11-25 20:30:46,825 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:30:46,825 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 79 treesize of output 60 [2021-11-25 20:30:46,832 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 400 treesize of output 334 [2021-11-25 20:30:46,850 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 1112 treesize of output 1034 [2021-11-25 20:30:46,870 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 1030 treesize of output 950 [2021-11-25 20:30:46,881 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 950 treesize of output 870 [2021-11-25 20:30:46,893 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 870 treesize of output 838 [2021-11-25 20:30:46,904 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 838 treesize of output 686 [2021-11-25 20:30:49,933 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:30:49,934 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 89 treesize of output 80 [2021-11-25 20:30:49,945 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:30:49,945 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 69 treesize of output 60 [2021-11-25 20:30:49,950 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 102 treesize of output 84 [2021-11-25 20:30:49,953 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 174 treesize of output 144 [2021-11-25 20:30:49,971 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 102 treesize of output 86 [2021-11-25 20:30:49,974 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 124 treesize of output 100 [2021-11-25 20:30:49,987 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 70 treesize of output 62 [2021-11-25 20:30:52,212 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 11 not checked. [2021-11-25 20:30:52,212 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-25 20:30:52,212 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [98802820] [2021-11-25 20:30:52,212 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [98802820] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 20:30:52,212 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [506115941] [2021-11-25 20:30:52,213 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-25 20:30:52,213 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-25 20:30:52,213 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7106b7cb-d78c-4585-b02a-5b17cf140786/bin/utaipan-eEHZpOm5b7/cvc4 [2021-11-25 20:30:52,215 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7106b7cb-d78c-4585-b02a-5b17cf140786/bin/utaipan-eEHZpOm5b7/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-25 20:30:52,217 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7106b7cb-d78c-4585-b02a-5b17cf140786/bin/utaipan-eEHZpOm5b7/cvc4 --incremental --print-success --lang smt (22)] Waiting until timeout for monitored process [2021-11-25 20:30:52,496 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-25 20:30:52,496 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-25 20:30:52,500 INFO L263 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 23 conjunts are in the unsatisfiable core [2021-11-25 20:30:52,502 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 20:30:52,522 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 22 treesize of output 20 [2021-11-25 20:30:52,539 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 11 [2021-11-25 20:30:52,563 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:30:52,573 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:30:52,679 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-11-25 20:30:52,680 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 46 treesize of output 45 [2021-11-25 20:30:52,692 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 24 [2021-11-25 20:30:52,819 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-11-25 20:30:52,820 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 46 treesize of output 45 [2021-11-25 20:30:52,827 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 24 [2021-11-25 20:30:52,919 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 31 treesize of output 13 [2021-11-25 20:30:52,930 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2021-11-25 20:30:52,939 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:30:52,939 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 20:30:53,148 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_571 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (select (store |c_#memory_$Pointer$.offset| |c_create_data_#t~mem9.base| v_ArrVal_571) c_create_data_~data~0.base) (bvadd c_create_data_~data~0.offset (_ bv4 32)))) (.cse1 (bvmul c_create_data_~counter~0 (_ bv4 32)))) (bvule (bvadd .cse0 (_ bv4 32) .cse1) (bvadd .cse0 (_ bv8 32) .cse1)))) (forall ((v_ArrVal_570 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_571 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse2 (bvadd c_create_data_~data~0.offset (_ bv4 32)))) (bvule (bvadd (select (select (store |c_#memory_$Pointer$.offset| |c_create_data_#t~mem9.base| v_ArrVal_571) c_create_data_~data~0.base) .cse2) (_ bv8 32) (bvmul c_create_data_~counter~0 (_ bv4 32))) (select |c_#length| (select (select (store |c_#memory_$Pointer$.base| |c_create_data_#t~mem9.base| v_ArrVal_570) c_create_data_~data~0.base) .cse2)))))) is different from false [2021-11-25 20:30:53,207 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_570 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_571 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse1 (bvadd c_create_data_~data~0.offset (_ bv4 32)))) (let ((.cse0 (select (select |c_#memory_$Pointer$.base| c_create_data_~data~0.base) .cse1))) (bvule (bvadd (select (select (store |c_#memory_$Pointer$.offset| .cse0 v_ArrVal_571) c_create_data_~data~0.base) .cse1) (_ bv8 32) (bvmul c_create_data_~counter~0 (_ bv4 32))) (select |c_#length| (select (select (store |c_#memory_$Pointer$.base| .cse0 v_ArrVal_570) c_create_data_~data~0.base) .cse1)))))) (forall ((v_ArrVal_571 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse2 (let ((.cse4 (bvadd c_create_data_~data~0.offset (_ bv4 32)))) (select (select (store |c_#memory_$Pointer$.offset| (select (select |c_#memory_$Pointer$.base| c_create_data_~data~0.base) .cse4) v_ArrVal_571) c_create_data_~data~0.base) .cse4))) (.cse3 (bvmul c_create_data_~counter~0 (_ bv4 32)))) (bvule (bvadd (_ bv4 32) .cse2 .cse3) (bvadd .cse2 (_ bv8 32) .cse3))))) is different from false [2021-11-25 20:30:53,288 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_570 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_571 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse1 (bvadd c_create_data_~data~0.offset (_ bv4 32)))) (let ((.cse0 (select (select |c_#memory_$Pointer$.base| c_create_data_~data~0.base) .cse1))) (bvule (bvadd (select (select (store |c_#memory_$Pointer$.offset| .cse0 v_ArrVal_571) c_create_data_~data~0.base) .cse1) (bvmul c_create_data_~counter~0 (_ bv4 32)) (_ bv12 32)) (select |c_#length| (select (select (store |c_#memory_$Pointer$.base| .cse0 v_ArrVal_570) c_create_data_~data~0.base) .cse1)))))) (forall ((v_ArrVal_571 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse2 (let ((.cse4 (bvadd c_create_data_~data~0.offset (_ bv4 32)))) (select (select (store |c_#memory_$Pointer$.offset| (select (select |c_#memory_$Pointer$.base| c_create_data_~data~0.base) .cse4) v_ArrVal_571) c_create_data_~data~0.base) .cse4))) (.cse3 (bvmul c_create_data_~counter~0 (_ bv4 32)))) (bvule (bvadd .cse2 (_ bv8 32) .cse3) (bvadd .cse2 .cse3 (_ bv12 32)))))) is different from false [2021-11-25 20:30:53,391 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_571 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_568 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_569 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (bvmul c_create_data_~counter~0 (_ bv4 32))) (.cse1 (let ((.cse2 (bvadd c_create_data_~data~0.offset (_ bv4 32)))) (select (select (store (store |c_#memory_$Pointer$.offset| |c_create_data_#t~mem9.base| v_ArrVal_569) (select (select (store |c_#memory_$Pointer$.base| |c_create_data_#t~mem9.base| v_ArrVal_568) c_create_data_~data~0.base) .cse2) v_ArrVal_571) c_create_data_~data~0.base) .cse2)))) (bvule (bvadd (_ bv8 32) .cse0 .cse1) (bvadd .cse0 .cse1 (_ bv12 32))))) (forall ((v_ArrVal_570 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_571 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_568 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_569 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse5 (store |c_#memory_$Pointer$.base| |c_create_data_#t~mem9.base| v_ArrVal_568)) (.cse4 (bvadd c_create_data_~data~0.offset (_ bv4 32)))) (let ((.cse3 (select (select .cse5 c_create_data_~data~0.base) .cse4))) (bvule (bvadd (bvmul c_create_data_~counter~0 (_ bv4 32)) (select (select (store (store |c_#memory_$Pointer$.offset| |c_create_data_#t~mem9.base| v_ArrVal_569) .cse3 v_ArrVal_571) c_create_data_~data~0.base) .cse4) (_ bv12 32)) (select |c_#length| (select (select (store .cse5 .cse3 v_ArrVal_570) c_create_data_~data~0.base) .cse4))))))) is different from false [2021-11-25 20:30:53,525 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_571 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_568 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_569 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (let ((.cse3 (bvadd c_create_data_~data~0.offset (_ bv4 32)))) (select (select (let ((.cse2 (select (select |c_#memory_$Pointer$.base| c_create_data_~data~0.base) .cse3))) (store (store |c_#memory_$Pointer$.offset| .cse2 v_ArrVal_569) (select (select (store |c_#memory_$Pointer$.base| .cse2 v_ArrVal_568) c_create_data_~data~0.base) .cse3) v_ArrVal_571)) c_create_data_~data~0.base) .cse3))) (.cse1 (bvmul c_create_data_~counter~0 (_ bv4 32)))) (bvule (bvadd (_ bv8 32) .cse0 .cse1) (bvadd .cse0 .cse1 (_ bv12 32))))) (forall ((v_ArrVal_570 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_571 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_568 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_569 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse6 (bvadd c_create_data_~data~0.offset (_ bv4 32)))) (let ((.cse4 (select (select |c_#memory_$Pointer$.base| c_create_data_~data~0.base) .cse6))) (let ((.cse7 (store |c_#memory_$Pointer$.base| .cse4 v_ArrVal_568))) (let ((.cse5 (select (select .cse7 c_create_data_~data~0.base) .cse6))) (bvule (bvadd (select (select (store (store |c_#memory_$Pointer$.offset| .cse4 v_ArrVal_569) .cse5 v_ArrVal_571) c_create_data_~data~0.base) .cse6) (bvmul c_create_data_~counter~0 (_ bv4 32)) (_ bv12 32)) (select |c_#length| (select (select (store .cse7 .cse5 v_ArrVal_570) c_create_data_~data~0.base) .cse6))))))))) is different from false [2021-11-25 20:30:53,606 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_570 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_571 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_568 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_569 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse2 (bvadd c_create_data_~data~0.offset (_ bv4 32)))) (let ((.cse0 (select (select |c_#memory_$Pointer$.base| c_create_data_~data~0.base) .cse2))) (let ((.cse3 (store |c_#memory_$Pointer$.base| .cse0 v_ArrVal_568))) (let ((.cse1 (select (select .cse3 c_create_data_~data~0.base) .cse2))) (bvule (bvadd (select (select (store (store |c_#memory_$Pointer$.offset| .cse0 v_ArrVal_569) .cse1 v_ArrVal_571) c_create_data_~data~0.base) .cse2) (_ bv12 32)) (select |c_#length| (select (select (store .cse3 .cse1 v_ArrVal_570) c_create_data_~data~0.base) .cse2)))))))) (forall ((v_ArrVal_571 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_568 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_569 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse4 (let ((.cse6 (bvadd c_create_data_~data~0.offset (_ bv4 32)))) (select (select (let ((.cse5 (select (select |c_#memory_$Pointer$.base| c_create_data_~data~0.base) .cse6))) (store (store |c_#memory_$Pointer$.offset| .cse5 v_ArrVal_569) (select (select (store |c_#memory_$Pointer$.base| .cse5 v_ArrVal_568) c_create_data_~data~0.base) .cse6) v_ArrVal_571)) c_create_data_~data~0.base) .cse6)))) (bvule (bvadd (_ bv8 32) .cse4) (bvadd .cse4 (_ bv12 32)))))) is different from false [2021-11-25 20:30:53,628 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:30:53,628 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 89 treesize of output 80 [2021-11-25 20:30:53,637 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:30:53,638 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 69 treesize of output 60 [2021-11-25 20:30:53,642 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 102 treesize of output 84 [2021-11-25 20:30:53,647 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 286 treesize of output 244 [2021-11-25 20:30:53,652 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 240 treesize of output 200 [2021-11-25 20:30:53,664 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 170 treesize of output 146 [2021-11-25 20:30:53,673 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 146 treesize of output 130 [2021-11-25 20:30:53,711 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:30:53,711 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 89 treesize of output 90 [2021-11-25 20:30:53,724 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:30:53,724 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 79 treesize of output 60 [2021-11-25 20:30:53,732 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:30:53,735 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 92 treesize of output 56 [2021-11-25 20:30:53,738 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:30:53,741 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 32 [2021-11-25 20:30:53,746 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 15 treesize of output 11 [2021-11-25 20:30:53,850 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 11 not checked. [2021-11-25 20:30:53,850 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [506115941] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 20:30:53,850 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [785350804] [2021-11-25 20:30:53,850 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-25 20:30:53,850 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:30:53,851 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7106b7cb-d78c-4585-b02a-5b17cf140786/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 20:30:53,851 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7106b7cb-d78c-4585-b02a-5b17cf140786/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 20:30:53,867 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7106b7cb-d78c-4585-b02a-5b17cf140786/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2021-11-25 20:30:54,004 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-25 20:30:54,004 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-25 20:30:54,007 INFO L263 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 24 conjunts are in the unsatisfiable core [2021-11-25 20:30:54,009 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 20:30:54,036 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 24 treesize of output 22 [2021-11-25 20:30:54,051 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 11 [2021-11-25 20:30:54,067 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:30:54,076 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:30:54,150 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-11-25 20:30:54,151 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 46 treesize of output 45 [2021-11-25 20:30:54,155 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 24 [2021-11-25 20:30:54,257 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-11-25 20:30:54,257 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 46 treesize of output 45 [2021-11-25 20:30:54,264 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 24 [2021-11-25 20:30:54,346 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 31 treesize of output 13 [2021-11-25 20:30:54,351 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2021-11-25 20:30:54,357 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:30:54,357 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 20:30:54,537 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_633 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_634 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (bvadd c_create_data_~data~0.offset (_ bv4 32)))) (bvule (bvadd (_ bv8 32) (select (select (store |c_#memory_$Pointer$.offset| |c_create_data_#t~mem9.base| v_ArrVal_634) c_create_data_~data~0.base) .cse0) (bvmul c_create_data_~counter~0 (_ bv4 32))) (select |c_#length| (select (select (store |c_#memory_$Pointer$.base| |c_create_data_#t~mem9.base| v_ArrVal_633) c_create_data_~data~0.base) .cse0))))) (forall ((v_ArrVal_634 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse1 (select (select (store |c_#memory_$Pointer$.offset| |c_create_data_#t~mem9.base| v_ArrVal_634) c_create_data_~data~0.base) (bvadd c_create_data_~data~0.offset (_ bv4 32)))) (.cse2 (bvmul c_create_data_~counter~0 (_ bv4 32)))) (bvule (bvadd (_ bv4 32) .cse1 .cse2) (bvadd (_ bv8 32) .cse1 .cse2))))) is different from false [2021-11-25 20:30:54,577 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_634 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (let ((.cse2 (bvadd c_create_data_~data~0.offset (_ bv4 32)))) (select (select (store |c_#memory_$Pointer$.offset| (select (select |c_#memory_$Pointer$.base| c_create_data_~data~0.base) .cse2) v_ArrVal_634) c_create_data_~data~0.base) .cse2))) (.cse1 (bvmul c_create_data_~counter~0 (_ bv4 32)))) (bvule (bvadd (_ bv4 32) .cse0 .cse1) (bvadd (_ bv8 32) .cse0 .cse1)))) (forall ((v_ArrVal_633 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_634 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse4 (bvadd c_create_data_~data~0.offset (_ bv4 32)))) (let ((.cse3 (select (select |c_#memory_$Pointer$.base| c_create_data_~data~0.base) .cse4))) (bvule (bvadd (_ bv8 32) (select (select (store |c_#memory_$Pointer$.offset| .cse3 v_ArrVal_634) c_create_data_~data~0.base) .cse4) (bvmul c_create_data_~counter~0 (_ bv4 32))) (select |c_#length| (select (select (store |c_#memory_$Pointer$.base| .cse3 v_ArrVal_633) c_create_data_~data~0.base) .cse4))))))) is different from false [2021-11-25 20:30:54,645 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_634 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (let ((.cse2 (bvadd c_create_data_~data~0.offset (_ bv4 32)))) (select (select (store |c_#memory_$Pointer$.offset| (select (select |c_#memory_$Pointer$.base| c_create_data_~data~0.base) .cse2) v_ArrVal_634) c_create_data_~data~0.base) .cse2))) (.cse1 (bvmul c_create_data_~counter~0 (_ bv4 32)))) (bvule (bvadd (_ bv8 32) .cse0 .cse1) (bvadd .cse0 .cse1 (_ bv12 32))))) (forall ((v_ArrVal_633 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_634 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse4 (bvadd c_create_data_~data~0.offset (_ bv4 32)))) (let ((.cse3 (select (select |c_#memory_$Pointer$.base| c_create_data_~data~0.base) .cse4))) (bvule (bvadd (select (select (store |c_#memory_$Pointer$.offset| .cse3 v_ArrVal_634) c_create_data_~data~0.base) .cse4) (bvmul c_create_data_~counter~0 (_ bv4 32)) (_ bv12 32)) (select |c_#length| (select (select (store |c_#memory_$Pointer$.base| .cse3 v_ArrVal_633) c_create_data_~data~0.base) .cse4))))))) is different from false [2021-11-25 20:30:54,715 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_631 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_632 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_633 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_634 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse2 (store |c_#memory_$Pointer$.base| |c_create_data_#t~mem9.base| v_ArrVal_632)) (.cse1 (bvadd c_create_data_~data~0.offset (_ bv4 32)))) (let ((.cse0 (select (select .cse2 c_create_data_~data~0.base) .cse1))) (bvule (bvadd (select (select (store (store |c_#memory_$Pointer$.offset| |c_create_data_#t~mem9.base| v_ArrVal_631) .cse0 v_ArrVal_634) c_create_data_~data~0.base) .cse1) (bvmul c_create_data_~counter~0 (_ bv4 32)) (_ bv12 32)) (select |c_#length| (select (select (store .cse2 .cse0 v_ArrVal_633) c_create_data_~data~0.base) .cse1)))))) (forall ((v_ArrVal_631 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_632 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_634 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse3 (let ((.cse5 (bvadd c_create_data_~data~0.offset (_ bv4 32)))) (select (select (store (store |c_#memory_$Pointer$.offset| |c_create_data_#t~mem9.base| v_ArrVal_631) (select (select (store |c_#memory_$Pointer$.base| |c_create_data_#t~mem9.base| v_ArrVal_632) c_create_data_~data~0.base) .cse5) v_ArrVal_634) c_create_data_~data~0.base) .cse5))) (.cse4 (bvmul c_create_data_~counter~0 (_ bv4 32)))) (bvule (bvadd (_ bv8 32) .cse3 .cse4) (bvadd .cse3 .cse4 (_ bv12 32)))))) is different from false [2021-11-25 20:30:54,910 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_631 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_632 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_633 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_634 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse2 (bvadd c_create_data_~data~0.offset (_ bv4 32)))) (let ((.cse0 (select (select |c_#memory_$Pointer$.base| c_create_data_~data~0.base) .cse2))) (let ((.cse3 (store |c_#memory_$Pointer$.base| .cse0 v_ArrVal_632))) (let ((.cse1 (select (select .cse3 c_create_data_~data~0.base) .cse2))) (bvule (bvadd (select (select (store (store |c_#memory_$Pointer$.offset| .cse0 v_ArrVal_631) .cse1 v_ArrVal_634) c_create_data_~data~0.base) .cse2) (bvmul c_create_data_~counter~0 (_ bv4 32)) (_ bv12 32)) (select |c_#length| (select (select (store .cse3 .cse1 v_ArrVal_633) c_create_data_~data~0.base) .cse2)))))))) (forall ((v_ArrVal_631 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_632 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_634 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse4 (let ((.cse7 (bvadd c_create_data_~data~0.offset (_ bv4 32)))) (select (select (let ((.cse6 (select (select |c_#memory_$Pointer$.base| c_create_data_~data~0.base) .cse7))) (store (store |c_#memory_$Pointer$.offset| .cse6 v_ArrVal_631) (select (select (store |c_#memory_$Pointer$.base| .cse6 v_ArrVal_632) c_create_data_~data~0.base) .cse7) v_ArrVal_634)) c_create_data_~data~0.base) .cse7))) (.cse5 (bvmul c_create_data_~counter~0 (_ bv4 32)))) (bvule (bvadd (_ bv8 32) .cse4 .cse5) (bvadd .cse4 .cse5 (_ bv12 32)))))) is different from false [2021-11-25 20:30:54,979 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_631 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_632 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_633 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_634 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse2 (bvadd c_create_data_~data~0.offset (_ bv4 32)))) (let ((.cse0 (select (select |c_#memory_$Pointer$.base| c_create_data_~data~0.base) .cse2))) (let ((.cse3 (store |c_#memory_$Pointer$.base| .cse0 v_ArrVal_632))) (let ((.cse1 (select (select .cse3 c_create_data_~data~0.base) .cse2))) (bvule (bvadd (select (select (store (store |c_#memory_$Pointer$.offset| .cse0 v_ArrVal_631) .cse1 v_ArrVal_634) c_create_data_~data~0.base) .cse2) (_ bv12 32)) (select |c_#length| (select (select (store .cse3 .cse1 v_ArrVal_633) c_create_data_~data~0.base) .cse2)))))))) (forall ((v_ArrVal_631 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_632 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_634 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse4 (let ((.cse6 (bvadd c_create_data_~data~0.offset (_ bv4 32)))) (select (select (let ((.cse5 (select (select |c_#memory_$Pointer$.base| c_create_data_~data~0.base) .cse6))) (store (store |c_#memory_$Pointer$.offset| .cse5 v_ArrVal_631) (select (select (store |c_#memory_$Pointer$.base| .cse5 v_ArrVal_632) c_create_data_~data~0.base) .cse6) v_ArrVal_634)) c_create_data_~data~0.base) .cse6)))) (bvule (bvadd (_ bv8 32) .cse4) (bvadd .cse4 (_ bv12 32)))))) is different from false [2021-11-25 20:30:55,012 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:30:55,012 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 89 treesize of output 90 [2021-11-25 20:30:55,027 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:30:55,028 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 79 treesize of output 60 [2021-11-25 20:30:55,037 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 400 treesize of output 334 [2021-11-25 20:30:55,044 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 688 treesize of output 634 [2021-11-25 20:30:55,055 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 630 treesize of output 582 [2021-11-25 20:30:55,069 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 582 treesize of output 566 [2021-11-25 20:30:55,076 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 566 treesize of output 462 [2021-11-25 20:30:55,082 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 462 treesize of output 414 [2021-11-25 20:30:58,377 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:30:58,378 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 89 treesize of output 80 [2021-11-25 20:30:58,386 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:30:58,386 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 69 treesize of output 60 [2021-11-25 20:30:58,390 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 102 treesize of output 84 [2021-11-25 20:30:58,394 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 286 treesize of output 244 [2021-11-25 20:30:58,397 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 240 treesize of output 200 [2021-11-25 20:30:58,427 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 170 treesize of output 146 [2021-11-25 20:30:58,440 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 146 treesize of output 130 [2021-11-25 20:30:58,684 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 11 not checked. [2021-11-25 20:30:58,685 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [785350804] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 20:30:58,685 INFO L186 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2021-11-25 20:30:58,685 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 11, 9, 11, 9, 11] total 32 [2021-11-25 20:30:58,685 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [838966052] [2021-11-25 20:30:58,685 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2021-11-25 20:30:58,686 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2021-11-25 20:30:58,686 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-25 20:30:58,686 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2021-11-25 20:30:58,687 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=179, Unknown=18, NotChecked=774, Total=1056 [2021-11-25 20:30:58,687 INFO L87 Difference]: Start difference. First operand 207 states and 227 transitions. Second operand has 33 states, 32 states have (on average 1.96875) internal successors, (63), 33 states have internal predecessors, (63), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:31:04,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:31:04,720 INFO L93 Difference]: Finished difference Result 219 states and 239 transitions. [2021-11-25 20:31:04,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-25 20:31:04,722 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 32 states have (on average 1.96875) internal successors, (63), 33 states have internal predecessors, (63), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2021-11-25 20:31:04,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:31:04,723 INFO L225 Difference]: With dead ends: 219 [2021-11-25 20:31:04,723 INFO L226 Difference]: Without dead ends: 219 [2021-11-25 20:31:04,724 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 164 GetRequests, 124 SyntacticMatches, 5 SemanticMatches, 35 ConstructedPredicates, 18 IntricatePredicates, 1 DeprecatedPredicates, 83 ImplicationChecksByTransitivity, 7.2s TimeCoverageRelationStatistics Valid=115, Invalid=281, Unknown=18, NotChecked=918, Total=1332 [2021-11-25 20:31:04,725 INFO L933 BasicCegarLoop]: 153 mSDtfsCounter, 22 mSDsluCounter, 2022 mSDsCounter, 0 mSdLazyCounter, 573 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 2175 SdHoareTripleChecker+Invalid, 2075 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 573 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1489 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2021-11-25 20:31:04,725 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [22 Valid, 2175 Invalid, 2075 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 573 Invalid, 0 Unknown, 1489 Unchecked, 2.7s Time] [2021-11-25 20:31:04,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219 states. [2021-11-25 20:31:04,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219 to 217. [2021-11-25 20:31:04,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 217 states, 162 states have (on average 1.4382716049382716) internal successors, (233), 212 states have internal predecessors, (233), 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) [2021-11-25 20:31:04,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 237 transitions. [2021-11-25 20:31:04,749 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 237 transitions. Word has length 27 [2021-11-25 20:31:04,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:31:04,749 INFO L470 AbstractCegarLoop]: Abstraction has 217 states and 237 transitions. [2021-11-25 20:31:04,749 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 32 states have (on average 1.96875) internal successors, (63), 33 states have internal predecessors, (63), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:31:04,750 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 237 transitions. [2021-11-25 20:31:04,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-11-25 20:31:04,751 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:31:04,751 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:31:04,762 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7106b7cb-d78c-4585-b02a-5b17cf140786/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (21)] Forceful destruction successful, exit code 0 [2021-11-25 20:31:04,981 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7106b7cb-d78c-4585-b02a-5b17cf140786/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2021-11-25 20:31:05,164 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7106b7cb-d78c-4585-b02a-5b17cf140786/bin/utaipan-eEHZpOm5b7/cvc4 --incremental --print-success --lang smt (22)] Forceful destruction successful, exit code 0 [2021-11-25 20:31:05,362 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7106b7cb-d78c-4585-b02a-5b17cf140786/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3,23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7106b7cb-d78c-4585-b02a-5b17cf140786/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true,22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7106b7cb-d78c-4585-b02a-5b17cf140786/bin/utaipan-eEHZpOm5b7/cvc4 --incremental --print-success --lang smt [2021-11-25 20:31:05,362 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting create_dataErr9REQUIRES_VIOLATION === [create_dataErr0REQUIRES_VIOLATION, create_dataErr1REQUIRES_VIOLATION, create_dataErr2REQUIRES_VIOLATION, create_dataErr3REQUIRES_VIOLATION (and 88 more)] === [2021-11-25 20:31:05,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:31:05,363 INFO L85 PathProgramCache]: Analyzing trace with hash 201129006, now seen corresponding path program 3 times [2021-11-25 20:31:05,363 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-25 20:31:05,363 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1618237141] [2021-11-25 20:31:05,364 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-25 20:31:05,364 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-25 20:31:05,364 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7106b7cb-d78c-4585-b02a-5b17cf140786/bin/utaipan-eEHZpOm5b7/mathsat [2021-11-25 20:31:05,365 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7106b7cb-d78c-4585-b02a-5b17cf140786/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-25 20:31:05,365 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7106b7cb-d78c-4585-b02a-5b17cf140786/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (24)] Waiting until timeout for monitored process [2021-11-25 20:31:05,713 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2021-11-25 20:31:05,714 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-25 20:31:05,726 INFO L263 TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 27 conjunts are in the unsatisfiable core [2021-11-25 20:31:05,728 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 20:31:05,762 INFO L354 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2021-11-25 20:31:05,763 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 1 case distinctions, treesize of input 9 treesize of output 15 [2021-11-25 20:31:05,771 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 20 treesize of output 18 [2021-11-25 20:31:05,798 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:31:05,805 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:31:05,951 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-11-25 20:31:05,951 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 46 treesize of output 45 [2021-11-25 20:31:05,957 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 24 [2021-11-25 20:31:06,104 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-11-25 20:31:06,104 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 46 treesize of output 45 [2021-11-25 20:31:06,109 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 24 [2021-11-25 20:31:06,288 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-11-25 20:31:06,289 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 46 treesize of output 45 [2021-11-25 20:31:06,293 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 24 [2021-11-25 20:31:06,391 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 31 treesize of output 13 [2021-11-25 20:31:06,395 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2021-11-25 20:31:06,423 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:31:06,423 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 20:31:06,894 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_712 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_713 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (bvadd c_create_data_~data~0.offset (_ bv4 32)))) (bvule (bvadd (_ bv8 32) (select (select (store |c_#memory_$Pointer$.offset| |c_create_data_#t~mem9.base| v_ArrVal_713) c_create_data_~data~0.base) .cse0) (bvmul c_create_data_~counter~0 (_ bv4 32))) (select |c_#length| (select (select (store |c_#memory_$Pointer$.base| |c_create_data_#t~mem9.base| v_ArrVal_712) c_create_data_~data~0.base) .cse0))))) (forall ((v_ArrVal_713 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse1 (select (select (store |c_#memory_$Pointer$.offset| |c_create_data_#t~mem9.base| v_ArrVal_713) c_create_data_~data~0.base) (bvadd c_create_data_~data~0.offset (_ bv4 32)))) (.cse2 (bvmul c_create_data_~counter~0 (_ bv4 32)))) (bvule (bvadd (_ bv4 32) .cse1 .cse2) (bvadd (_ bv8 32) .cse1 .cse2))))) is different from false [2021-11-25 20:31:06,943 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_713 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (bvmul c_create_data_~counter~0 (_ bv4 32))) (.cse1 (let ((.cse2 (bvadd c_create_data_~data~0.offset (_ bv4 32)))) (select (select (store |c_#memory_$Pointer$.offset| (select (select |c_#memory_$Pointer$.base| c_create_data_~data~0.base) .cse2) v_ArrVal_713) c_create_data_~data~0.base) .cse2)))) (bvule (bvadd (_ bv4 32) .cse0 .cse1) (bvadd (_ bv8 32) .cse0 .cse1)))) (forall ((v_ArrVal_712 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_713 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse4 (bvadd c_create_data_~data~0.offset (_ bv4 32)))) (let ((.cse3 (select (select |c_#memory_$Pointer$.base| c_create_data_~data~0.base) .cse4))) (bvule (bvadd (_ bv8 32) (bvmul c_create_data_~counter~0 (_ bv4 32)) (select (select (store |c_#memory_$Pointer$.offset| .cse3 v_ArrVal_713) c_create_data_~data~0.base) .cse4)) (select |c_#length| (select (select (store |c_#memory_$Pointer$.base| .cse3 v_ArrVal_712) c_create_data_~data~0.base) .cse4))))))) is different from false [2021-11-25 20:31:07,003 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_713 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (bvmul c_create_data_~counter~0 (_ bv4 32))) (.cse1 (let ((.cse2 (bvadd c_create_data_~data~0.offset (_ bv4 32)))) (select (select (store |c_#memory_$Pointer$.offset| (select (select |c_#memory_$Pointer$.base| c_create_data_~data~0.base) .cse2) v_ArrVal_713) c_create_data_~data~0.base) .cse2)))) (bvule (bvadd (_ bv8 32) .cse0 .cse1) (bvadd .cse0 (_ bv12 32) .cse1)))) (forall ((v_ArrVal_712 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_713 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse4 (bvadd c_create_data_~data~0.offset (_ bv4 32)))) (let ((.cse3 (select (select |c_#memory_$Pointer$.base| c_create_data_~data~0.base) .cse4))) (bvule (bvadd (bvmul c_create_data_~counter~0 (_ bv4 32)) (_ bv12 32) (select (select (store |c_#memory_$Pointer$.offset| .cse3 v_ArrVal_713) c_create_data_~data~0.base) .cse4)) (select |c_#length| (select (select (store |c_#memory_$Pointer$.base| .cse3 v_ArrVal_712) c_create_data_~data~0.base) .cse4))))))) is different from false [2021-11-25 20:31:07,081 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_710 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_711 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_712 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_713 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse2 (store |c_#memory_$Pointer$.base| |c_create_data_#t~mem9.base| v_ArrVal_711)) (.cse1 (bvadd c_create_data_~data~0.offset (_ bv4 32)))) (let ((.cse0 (select (select .cse2 c_create_data_~data~0.base) .cse1))) (bvule (bvadd (bvmul c_create_data_~counter~0 (_ bv4 32)) (select (select (store (store |c_#memory_$Pointer$.offset| |c_create_data_#t~mem9.base| v_ArrVal_710) .cse0 v_ArrVal_713) c_create_data_~data~0.base) .cse1) (_ bv12 32)) (select |c_#length| (select (select (store .cse2 .cse0 v_ArrVal_712) c_create_data_~data~0.base) .cse1)))))) (forall ((v_ArrVal_710 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_711 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_713 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse3 (bvmul c_create_data_~counter~0 (_ bv4 32))) (.cse4 (let ((.cse5 (bvadd c_create_data_~data~0.offset (_ bv4 32)))) (select (select (store (store |c_#memory_$Pointer$.offset| |c_create_data_#t~mem9.base| v_ArrVal_710) (select (select (store |c_#memory_$Pointer$.base| |c_create_data_#t~mem9.base| v_ArrVal_711) c_create_data_~data~0.base) .cse5) v_ArrVal_713) c_create_data_~data~0.base) .cse5)))) (bvule (bvadd (_ bv8 32) .cse3 .cse4) (bvadd .cse3 .cse4 (_ bv12 32)))))) is different from false [2021-11-25 20:31:07,351 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_710 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_711 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_713 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (bvmul c_create_data_~counter~0 (_ bv4 32))) (.cse1 (let ((.cse3 (bvadd c_create_data_~data~0.offset (_ bv4 32)))) (select (select (let ((.cse2 (select (select |c_#memory_$Pointer$.base| c_create_data_~data~0.base) .cse3))) (store (store |c_#memory_$Pointer$.offset| .cse2 v_ArrVal_710) (select (select (store |c_#memory_$Pointer$.base| .cse2 v_ArrVal_711) c_create_data_~data~0.base) .cse3) v_ArrVal_713)) c_create_data_~data~0.base) .cse3)))) (bvule (bvadd (_ bv8 32) .cse0 .cse1) (bvadd .cse0 .cse1 (_ bv12 32))))) (forall ((v_ArrVal_710 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_711 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_712 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_713 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse6 (bvadd c_create_data_~data~0.offset (_ bv4 32)))) (let ((.cse4 (select (select |c_#memory_$Pointer$.base| c_create_data_~data~0.base) .cse6))) (let ((.cse7 (store |c_#memory_$Pointer$.base| .cse4 v_ArrVal_711))) (let ((.cse5 (select (select .cse7 c_create_data_~data~0.base) .cse6))) (bvule (bvadd (bvmul c_create_data_~counter~0 (_ bv4 32)) (select (select (store (store |c_#memory_$Pointer$.offset| .cse4 v_ArrVal_710) .cse5 v_ArrVal_713) c_create_data_~data~0.base) .cse6) (_ bv12 32)) (select |c_#length| (select (select (store .cse7 .cse5 v_ArrVal_712) c_create_data_~data~0.base) .cse6))))))))) is different from false [2021-11-25 20:31:07,437 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_710 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_711 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_712 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_713 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse2 (bvadd c_create_data_~data~0.offset (_ bv4 32)))) (let ((.cse0 (select (select |c_#memory_$Pointer$.base| c_create_data_~data~0.base) .cse2))) (let ((.cse3 (store |c_#memory_$Pointer$.base| .cse0 v_ArrVal_711))) (let ((.cse1 (select (select .cse3 c_create_data_~data~0.base) .cse2))) (bvule (bvadd (_ bv16 32) (bvmul c_create_data_~counter~0 (_ bv4 32)) (select (select (store (store |c_#memory_$Pointer$.offset| .cse0 v_ArrVal_710) .cse1 v_ArrVal_713) c_create_data_~data~0.base) .cse2)) (select |c_#length| (select (select (store .cse3 .cse1 v_ArrVal_712) c_create_data_~data~0.base) .cse2)))))))) (forall ((v_ArrVal_710 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_711 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_713 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse4 (bvmul c_create_data_~counter~0 (_ bv4 32))) (.cse5 (let ((.cse7 (bvadd c_create_data_~data~0.offset (_ bv4 32)))) (select (select (let ((.cse6 (select (select |c_#memory_$Pointer$.base| c_create_data_~data~0.base) .cse7))) (store (store |c_#memory_$Pointer$.offset| .cse6 v_ArrVal_710) (select (select (store |c_#memory_$Pointer$.base| .cse6 v_ArrVal_711) c_create_data_~data~0.base) .cse7) v_ArrVal_713)) c_create_data_~data~0.base) .cse7)))) (bvule (bvadd .cse4 .cse5 (_ bv12 32)) (bvadd (_ bv16 32) .cse4 .cse5))))) is different from false [2021-11-25 20:31:07,603 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_708 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_709 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_710 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_711 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_713 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (let ((.cse4 (bvadd c_create_data_~data~0.offset (_ bv4 32)))) (select (select (let ((.cse3 (store |c_#memory_$Pointer$.base| |c_create_data_#t~mem9.base| v_ArrVal_708))) (let ((.cse2 (select (select .cse3 c_create_data_~data~0.base) .cse4))) (store (store (store |c_#memory_$Pointer$.offset| |c_create_data_#t~mem9.base| v_ArrVal_709) .cse2 v_ArrVal_710) (select (select (store .cse3 .cse2 v_ArrVal_711) c_create_data_~data~0.base) .cse4) v_ArrVal_713))) c_create_data_~data~0.base) .cse4))) (.cse1 (bvmul c_create_data_~counter~0 (_ bv4 32)))) (bvule (bvadd .cse0 .cse1 (_ bv12 32)) (bvadd (_ bv16 32) .cse0 .cse1)))) (forall ((v_ArrVal_708 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_709 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_710 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_711 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_712 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_713 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse9 (store |c_#memory_$Pointer$.base| |c_create_data_#t~mem9.base| v_ArrVal_708)) (.cse7 (bvadd c_create_data_~data~0.offset (_ bv4 32)))) (let ((.cse5 (select (select .cse9 c_create_data_~data~0.base) .cse7))) (let ((.cse8 (store .cse9 .cse5 v_ArrVal_711))) (let ((.cse6 (select (select .cse8 c_create_data_~data~0.base) .cse7))) (bvule (bvadd (_ bv16 32) (select (select (store (store (store |c_#memory_$Pointer$.offset| |c_create_data_#t~mem9.base| v_ArrVal_709) .cse5 v_ArrVal_710) .cse6 v_ArrVal_713) c_create_data_~data~0.base) .cse7) (bvmul c_create_data_~counter~0 (_ bv4 32))) (select |c_#length| (select (select (store .cse8 .cse6 v_ArrVal_712) c_create_data_~data~0.base) .cse7))))))))) is different from false [2021-11-25 20:31:09,709 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_708 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_709 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_710 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_711 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_712 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_713 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse3 (bvadd c_create_data_~data~0.offset (_ bv4 32)))) (let ((.cse0 (select (select |c_#memory_$Pointer$.base| c_create_data_~data~0.base) .cse3))) (let ((.cse5 (store |c_#memory_$Pointer$.base| .cse0 v_ArrVal_708))) (let ((.cse1 (select (select .cse5 c_create_data_~data~0.base) .cse3))) (let ((.cse4 (store .cse5 .cse1 v_ArrVal_711))) (let ((.cse2 (select (select .cse4 c_create_data_~data~0.base) .cse3))) (bvule (bvadd (_ bv16 32) (select (select (store (store (store |c_#memory_$Pointer$.offset| .cse0 v_ArrVal_709) .cse1 v_ArrVal_710) .cse2 v_ArrVal_713) c_create_data_~data~0.base) .cse3) (bvmul c_create_data_~counter~0 (_ bv4 32))) (select |c_#length| (select (select (store .cse4 .cse2 v_ArrVal_712) c_create_data_~data~0.base) .cse3)))))))))) (forall ((v_ArrVal_708 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_709 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_710 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_711 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_713 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse6 (let ((.cse11 (bvadd c_create_data_~data~0.offset (_ bv4 32)))) (select (select (let ((.cse8 (select (select |c_#memory_$Pointer$.base| c_create_data_~data~0.base) .cse11))) (let ((.cse10 (store |c_#memory_$Pointer$.base| .cse8 v_ArrVal_708))) (let ((.cse9 (select (select .cse10 c_create_data_~data~0.base) .cse11))) (store (store (store |c_#memory_$Pointer$.offset| .cse8 v_ArrVal_709) .cse9 v_ArrVal_710) (select (select (store .cse10 .cse9 v_ArrVal_711) c_create_data_~data~0.base) .cse11) v_ArrVal_713)))) c_create_data_~data~0.base) .cse11))) (.cse7 (bvmul c_create_data_~counter~0 (_ bv4 32)))) (bvule (bvadd .cse6 .cse7 (_ bv12 32)) (bvadd (_ bv16 32) .cse6 .cse7))))) is different from false [2021-11-25 20:31:09,860 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_708 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_709 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_710 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_711 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_713 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (let ((.cse4 (bvadd c_create_data_~data~0.offset (_ bv4 32)))) (select (select (let ((.cse1 (select (select |c_#memory_$Pointer$.base| c_create_data_~data~0.base) .cse4))) (let ((.cse3 (store |c_#memory_$Pointer$.base| .cse1 v_ArrVal_708))) (let ((.cse2 (select (select .cse3 c_create_data_~data~0.base) .cse4))) (store (store (store |c_#memory_$Pointer$.offset| .cse1 v_ArrVal_709) .cse2 v_ArrVal_710) (select (select (store .cse3 .cse2 v_ArrVal_711) c_create_data_~data~0.base) .cse4) v_ArrVal_713)))) c_create_data_~data~0.base) .cse4)))) (bvule (bvadd .cse0 (_ bv12 32)) (bvadd (_ bv16 32) .cse0)))) (forall ((v_ArrVal_708 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_709 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_710 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_711 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_712 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_713 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse8 (bvadd c_create_data_~data~0.offset (_ bv4 32)))) (let ((.cse5 (select (select |c_#memory_$Pointer$.base| c_create_data_~data~0.base) .cse8))) (let ((.cse10 (store |c_#memory_$Pointer$.base| .cse5 v_ArrVal_708))) (let ((.cse6 (select (select .cse10 c_create_data_~data~0.base) .cse8))) (let ((.cse9 (store .cse10 .cse6 v_ArrVal_711))) (let ((.cse7 (select (select .cse9 c_create_data_~data~0.base) .cse8))) (bvule (bvadd (_ bv16 32) (select (select (store (store (store |c_#memory_$Pointer$.offset| .cse5 v_ArrVal_709) .cse6 v_ArrVal_710) .cse7 v_ArrVal_713) c_create_data_~data~0.base) .cse8)) (select |c_#length| (select (select (store .cse9 .cse7 v_ArrVal_712) c_create_data_~data~0.base) .cse8))))))))))) is different from false [2021-11-25 20:31:09,904 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:31:09,904 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 177 treesize of output 178 [2021-11-25 20:31:09,924 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:31:09,925 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 167 treesize of output 108 [2021-11-25 20:31:09,941 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 4828 treesize of output 4078 [2021-11-25 20:31:10,096 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 16784 treesize of output 16250 [2021-11-25 20:31:10,272 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 16246 treesize of output 15190 [2021-11-25 20:31:10,369 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 15190 treesize of output 14966 [2021-11-25 20:31:10,461 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 14966 treesize of output 12638 [2021-11-25 20:31:10,522 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 12638 treesize of output 11582 [2021-11-25 20:31:10,580 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 11582 treesize of output 9966 [2021-11-25 20:31:10,639 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 9966 treesize of output 9486