./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/ldv-memsafety/memleaks_test21-2.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_97305395-5eb5-477c-9d12-b90665010054/bin/uautomizer-DrprNOufMa/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97305395-5eb5-477c-9d12-b90665010054/bin/uautomizer-DrprNOufMa/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97305395-5eb5-477c-9d12-b90665010054/bin/uautomizer-DrprNOufMa/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97305395-5eb5-477c-9d12-b90665010054/bin/uautomizer-DrprNOufMa/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test21-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97305395-5eb5-477c-9d12-b90665010054/bin/uautomizer-DrprNOufMa/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97305395-5eb5-477c-9d12-b90665010054/bin/uautomizer-DrprNOufMa --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 8cad73f64954eeb86e2707e579f8aca932182fe823da421e8ece02d4d63f0cc3 --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-12-06 18:49:53,329 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-06 18:49:53,330 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-06 18:49:53,360 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-06 18:49:53,361 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-06 18:49:53,362 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-06 18:49:53,364 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-06 18:49:53,366 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-06 18:49:53,368 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-06 18:49:53,369 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-06 18:49:53,370 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-06 18:49:53,372 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-06 18:49:53,372 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-06 18:49:53,373 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-06 18:49:53,375 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-06 18:49:53,376 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-06 18:49:53,377 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-06 18:49:53,378 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-06 18:49:53,380 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-06 18:49:53,383 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-06 18:49:53,384 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-06 18:49:53,386 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-06 18:49:53,387 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-06 18:49:53,388 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-06 18:49:53,392 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-06 18:49:53,392 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-06 18:49:53,392 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-06 18:49:53,393 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-06 18:49:53,394 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-06 18:49:53,395 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-06 18:49:53,395 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-06 18:49:53,396 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-06 18:49:53,397 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-06 18:49:53,398 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-06 18:49:53,399 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-06 18:49:53,399 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-06 18:49:53,400 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-06 18:49:53,400 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-06 18:49:53,400 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-06 18:49:53,401 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-06 18:49:53,401 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-06 18:49:53,402 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97305395-5eb5-477c-9d12-b90665010054/bin/uautomizer-DrprNOufMa/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2021-12-06 18:49:53,420 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-06 18:49:53,420 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-06 18:49:53,420 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-06 18:49:53,420 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-06 18:49:53,421 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-06 18:49:53,421 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-06 18:49:53,421 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-06 18:49:53,422 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-06 18:49:53,422 INFO L138 SettingsManager]: * Use SBE=true [2021-12-06 18:49:53,422 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-06 18:49:53,422 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-06 18:49:53,422 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-06 18:49:53,422 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-06 18:49:53,422 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-06 18:49:53,422 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-06 18:49:53,423 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-12-06 18:49:53,423 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-12-06 18:49:53,423 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-12-06 18:49:53,423 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-06 18:49:53,423 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-12-06 18:49:53,423 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-06 18:49:53,423 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-06 18:49:53,423 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-06 18:49:53,424 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-06 18:49:53,424 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-06 18:49:53,424 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 18:49:53,424 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-06 18:49:53,424 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-06 18:49:53,424 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-06 18:49:53,424 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-06 18:49:53,424 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-06 18:49:53,425 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97305395-5eb5-477c-9d12-b90665010054/bin/uautomizer-DrprNOufMa/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97305395-5eb5-477c-9d12-b90665010054/bin/uautomizer-DrprNOufMa Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8cad73f64954eeb86e2707e579f8aca932182fe823da421e8ece02d4d63f0cc3 [2021-12-06 18:49:53,588 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-06 18:49:53,603 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-06 18:49:53,605 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-06 18:49:53,606 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-06 18:49:53,607 INFO L275 PluginConnector]: CDTParser initialized [2021-12-06 18:49:53,608 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97305395-5eb5-477c-9d12-b90665010054/bin/uautomizer-DrprNOufMa/../../sv-benchmarks/c/ldv-memsafety/memleaks_test21-2.i [2021-12-06 18:49:53,660 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97305395-5eb5-477c-9d12-b90665010054/bin/uautomizer-DrprNOufMa/data/466457f81/7fe1e002312d4a0b996e5bc9ac8368d6/FLAG9f67746f1 [2021-12-06 18:49:54,082 INFO L306 CDTParser]: Found 1 translation units. [2021-12-06 18:49:54,082 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97305395-5eb5-477c-9d12-b90665010054/sv-benchmarks/c/ldv-memsafety/memleaks_test21-2.i [2021-12-06 18:49:54,094 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97305395-5eb5-477c-9d12-b90665010054/bin/uautomizer-DrprNOufMa/data/466457f81/7fe1e002312d4a0b996e5bc9ac8368d6/FLAG9f67746f1 [2021-12-06 18:49:54,103 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97305395-5eb5-477c-9d12-b90665010054/bin/uautomizer-DrprNOufMa/data/466457f81/7fe1e002312d4a0b996e5bc9ac8368d6 [2021-12-06 18:49:54,105 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-06 18:49:54,106 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-06 18:49:54,107 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-06 18:49:54,107 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-06 18:49:54,110 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-06 18:49:54,110 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 06:49:54" (1/1) ... [2021-12-06 18:49:54,111 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7461daa9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:49:54, skipping insertion in model container [2021-12-06 18:49:54,111 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 06:49:54" (1/1) ... [2021-12-06 18:49:54,116 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-06 18:49:54,143 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-06 18:49:54,388 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 18:49:54,401 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) [2021-12-06 18:49:54,402 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@77463302 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:49:54, skipping insertion in model container [2021-12-06 18:49:54,402 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-06 18:49:54,402 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-12-06 18:49:54,404 INFO L158 Benchmark]: Toolchain (without parser) took 297.18ms. Allocated memory was 75.5MB in the beginning and 107.0MB in the end (delta: 31.5MB). Free memory was 37.7MB in the beginning and 76.9MB in the end (delta: -39.2MB). Peak memory consumption was 5.7MB. Max. memory is 16.1GB. [2021-12-06 18:49:54,404 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 75.5MB. Free memory was 38.2MB in the beginning and 38.2MB in the end (delta: 70.0kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-06 18:49:54,405 INFO L158 Benchmark]: CACSL2BoogieTranslator took 295.29ms. Allocated memory was 75.5MB in the beginning and 107.0MB in the end (delta: 31.5MB). Free memory was 37.5MB in the beginning and 76.9MB in the end (delta: -39.4MB). Peak memory consumption was 5.7MB. Max. memory is 16.1GB. [2021-12-06 18:49:54,406 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 75.5MB. Free memory was 38.2MB in the beginning and 38.2MB in the end (delta: 70.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 295.29ms. Allocated memory was 75.5MB in the beginning and 107.0MB in the end (delta: 31.5MB). Free memory was 37.5MB in the beginning and 76.9MB in the end (delta: -39.4MB). Peak memory consumption was 5.7MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 576]: 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_97305395-5eb5-477c-9d12-b90665010054/bin/uautomizer-DrprNOufMa/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97305395-5eb5-477c-9d12-b90665010054/bin/uautomizer-DrprNOufMa/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97305395-5eb5-477c-9d12-b90665010054/bin/uautomizer-DrprNOufMa/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97305395-5eb5-477c-9d12-b90665010054/bin/uautomizer-DrprNOufMa/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test21-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97305395-5eb5-477c-9d12-b90665010054/bin/uautomizer-DrprNOufMa/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97305395-5eb5-477c-9d12-b90665010054/bin/uautomizer-DrprNOufMa --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 8cad73f64954eeb86e2707e579f8aca932182fe823da421e8ece02d4d63f0cc3 --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-12-06 18:49:55,827 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-06 18:49:55,829 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-06 18:49:55,857 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-06 18:49:55,857 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-06 18:49:55,859 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-06 18:49:55,860 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-06 18:49:55,863 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-06 18:49:55,865 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-06 18:49:55,866 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-06 18:49:55,867 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-06 18:49:55,869 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-06 18:49:55,869 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-06 18:49:55,870 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-06 18:49:55,872 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-06 18:49:55,873 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-06 18:49:55,874 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-06 18:49:55,875 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-06 18:49:55,886 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-06 18:49:55,889 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-06 18:49:55,891 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-06 18:49:55,892 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-06 18:49:55,894 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-06 18:49:55,894 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-06 18:49:55,898 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-06 18:49:55,899 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-06 18:49:55,899 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-06 18:49:55,900 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-06 18:49:55,901 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-06 18:49:55,902 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-06 18:49:55,902 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-06 18:49:55,903 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-06 18:49:55,904 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-06 18:49:55,905 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-06 18:49:55,906 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-06 18:49:55,906 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-06 18:49:55,907 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-06 18:49:55,907 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-06 18:49:55,908 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-06 18:49:55,909 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-06 18:49:55,909 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-06 18:49:55,910 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97305395-5eb5-477c-9d12-b90665010054/bin/uautomizer-DrprNOufMa/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2021-12-06 18:49:55,933 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-06 18:49:55,933 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-06 18:49:55,934 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-06 18:49:55,934 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-06 18:49:55,934 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-06 18:49:55,935 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-06 18:49:55,935 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-06 18:49:55,935 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-06 18:49:55,935 INFO L138 SettingsManager]: * Use SBE=true [2021-12-06 18:49:55,936 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-06 18:49:55,936 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-06 18:49:55,936 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-06 18:49:55,936 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-06 18:49:55,936 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-06 18:49:55,937 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-06 18:49:55,937 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-12-06 18:49:55,937 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-12-06 18:49:55,937 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-12-06 18:49:55,937 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-06 18:49:55,937 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-12-06 18:49:55,938 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-12-06 18:49:55,938 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-12-06 18:49:55,938 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-06 18:49:55,938 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-06 18:49:55,938 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-06 18:49:55,938 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-06 18:49:55,938 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-06 18:49:55,938 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 18:49:55,939 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-06 18:49:55,939 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-06 18:49:55,939 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-12-06 18:49:55,939 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-12-06 18:49:55,939 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-06 18:49:55,939 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-12-06 18:49:55,939 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_97305395-5eb5-477c-9d12-b90665010054/bin/uautomizer-DrprNOufMa/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97305395-5eb5-477c-9d12-b90665010054/bin/uautomizer-DrprNOufMa Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8cad73f64954eeb86e2707e579f8aca932182fe823da421e8ece02d4d63f0cc3 [2021-12-06 18:49:56,194 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-06 18:49:56,208 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-06 18:49:56,210 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-06 18:49:56,211 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-06 18:49:56,211 INFO L275 PluginConnector]: CDTParser initialized [2021-12-06 18:49:56,212 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97305395-5eb5-477c-9d12-b90665010054/bin/uautomizer-DrprNOufMa/../../sv-benchmarks/c/ldv-memsafety/memleaks_test21-2.i [2021-12-06 18:49:56,251 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97305395-5eb5-477c-9d12-b90665010054/bin/uautomizer-DrprNOufMa/data/41c4f9707/8b068537617146f0a4c5c5c0527e83cd/FLAG1be0c4244 [2021-12-06 18:49:56,711 INFO L306 CDTParser]: Found 1 translation units. [2021-12-06 18:49:56,711 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97305395-5eb5-477c-9d12-b90665010054/sv-benchmarks/c/ldv-memsafety/memleaks_test21-2.i [2021-12-06 18:49:56,724 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97305395-5eb5-477c-9d12-b90665010054/bin/uautomizer-DrprNOufMa/data/41c4f9707/8b068537617146f0a4c5c5c0527e83cd/FLAG1be0c4244 [2021-12-06 18:49:56,736 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97305395-5eb5-477c-9d12-b90665010054/bin/uautomizer-DrprNOufMa/data/41c4f9707/8b068537617146f0a4c5c5c0527e83cd [2021-12-06 18:49:56,738 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-06 18:49:56,739 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-06 18:49:56,740 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-06 18:49:56,741 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-06 18:49:56,743 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-06 18:49:56,744 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 06:49:56" (1/1) ... [2021-12-06 18:49:56,744 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@c54a69c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:49:56, skipping insertion in model container [2021-12-06 18:49:56,745 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 06:49:56" (1/1) ... [2021-12-06 18:49:56,749 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-06 18:49:56,777 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-06 18:49:57,049 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 18:49:57,062 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-12-06 18:49:57,069 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-06 18:49:57,101 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 18:49:57,106 INFO L203 MainTranslator]: Completed pre-run [2021-12-06 18:49:57,140 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 18:49:57,177 INFO L208 MainTranslator]: Completed translation [2021-12-06 18:49:57,177 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:49:57 WrapperNode [2021-12-06 18:49:57,178 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-06 18:49:57,178 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-06 18:49:57,179 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-06 18:49:57,179 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-06 18:49:57,184 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:49:57" (1/1) ... [2021-12-06 18:49:57,205 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:49:57" (1/1) ... [2021-12-06 18:49:57,223 INFO L137 Inliner]: procedures = 167, calls = 71, calls flagged for inlining = 23, calls inlined = 5, statements flattened = 31 [2021-12-06 18:49:57,223 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-06 18:49:57,224 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-06 18:49:57,224 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-06 18:49:57,224 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-06 18:49:57,230 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:49:57" (1/1) ... [2021-12-06 18:49:57,230 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:49:57" (1/1) ... [2021-12-06 18:49:57,233 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:49:57" (1/1) ... [2021-12-06 18:49:57,233 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:49:57" (1/1) ... [2021-12-06 18:49:57,238 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:49:57" (1/1) ... [2021-12-06 18:49:57,239 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:49:57" (1/1) ... [2021-12-06 18:49:57,240 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:49:57" (1/1) ... [2021-12-06 18:49:57,242 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-06 18:49:57,243 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-06 18:49:57,243 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-06 18:49:57,243 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-06 18:49:57,244 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:49:57" (1/1) ... [2021-12-06 18:49:57,249 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 18:49:57,257 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97305395-5eb5-477c-9d12-b90665010054/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 18:49:57,266 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97305395-5eb5-477c-9d12-b90665010054/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-06 18:49:57,269 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97305395-5eb5-477c-9d12-b90665010054/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-06 18:49:57,295 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-06 18:49:57,295 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-06 18:49:57,295 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-06 18:49:57,295 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-06 18:49:57,295 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-06 18:49:57,296 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-06 18:49:57,296 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-06 18:49:57,296 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-06 18:49:57,367 INFO L236 CfgBuilder]: Building ICFG [2021-12-06 18:49:57,369 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-06 18:49:57,454 INFO L277 CfgBuilder]: Performing block encoding [2021-12-06 18:49:57,458 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-06 18:49:57,458 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-06 18:49:57,459 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 06:49:57 BoogieIcfgContainer [2021-12-06 18:49:57,460 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-06 18:49:57,461 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-06 18:49:57,461 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-06 18:49:57,463 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-06 18:49:57,463 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.12 06:49:56" (1/3) ... [2021-12-06 18:49:57,464 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8adf101 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 06:49:57, skipping insertion in model container [2021-12-06 18:49:57,464 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:49:57" (2/3) ... [2021-12-06 18:49:57,464 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8adf101 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 06:49:57, skipping insertion in model container [2021-12-06 18:49:57,464 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 06:49:57" (3/3) ... [2021-12-06 18:49:57,465 INFO L111 eAbstractionObserver]: Analyzing ICFG memleaks_test21-2.i [2021-12-06 18:49:57,469 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-06 18:49:57,469 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2021-12-06 18:49:57,501 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-06 18:49:57,508 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 [2021-12-06 18:49:57,508 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-12-06 18:49:57,519 INFO L276 IsEmpty]: Start isEmpty. Operand has 23 states, 16 states have (on average 1.4375) internal successors, (23), 20 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 18:49:57,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-12-06 18:49:57,524 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:49:57,525 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:49:57,525 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 1 more)] === [2021-12-06 18:49:57,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:49:57,530 INFO L85 PathProgramCache]: Analyzing trace with hash -1812086039, now seen corresponding path program 1 times [2021-12-06 18:49:57,543 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 18:49:57,543 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [193069826] [2021-12-06 18:49:57,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:49:57,544 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 18:49:57,544 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97305395-5eb5-477c-9d12-b90665010054/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 18:49:57,545 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97305395-5eb5-477c-9d12-b90665010054/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 18:49:57,546 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97305395-5eb5-477c-9d12-b90665010054/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-12-06 18:49:57,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:49:57,623 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 10 conjunts are in the unsatisfiable core [2021-12-06 18:49:57,628 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 18:49:57,737 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 18:49:57,737 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 18:49:57,738 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 18:49:57,738 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [193069826] [2021-12-06 18:49:57,738 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [193069826] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:49:57,738 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:49:57,739 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-06 18:49:57,740 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1972802958] [2021-12-06 18:49:57,740 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:49:57,743 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-06 18:49:57,744 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 18:49:57,763 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-06 18:49:57,764 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-12-06 18:49:57,765 INFO L87 Difference]: Start difference. First operand has 23 states, 16 states have (on average 1.4375) internal successors, (23), 20 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Second operand has 8 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 7 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 18:49:57,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:49:57,855 INFO L93 Difference]: Finished difference Result 42 states and 42 transitions. [2021-12-06 18:49:57,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-06 18:49:57,857 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 7 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 12 [2021-12-06 18:49:57,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:49:57,864 INFO L225 Difference]: With dead ends: 42 [2021-12-06 18:49:57,865 INFO L226 Difference]: Without dead ends: 36 [2021-12-06 18:49:57,866 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2021-12-06 18:49:57,870 INFO L933 BasicCegarLoop]: 24 mSDtfsCounter, 65 mSDsluCounter, 113 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 137 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 18:49:57,871 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [65 Valid, 137 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 18:49:57,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2021-12-06 18:49:57,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 24. [2021-12-06 18:49:57,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 18 states have (on average 1.3333333333333333) internal successors, (24), 21 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 18:49:57,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 26 transitions. [2021-12-06 18:49:57,903 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 26 transitions. Word has length 12 [2021-12-06 18:49:57,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:49:57,904 INFO L470 AbstractCegarLoop]: Abstraction has 24 states and 26 transitions. [2021-12-06 18:49:57,904 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 7 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 18:49:57,904 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 26 transitions. [2021-12-06 18:49:57,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-12-06 18:49:57,905 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:49:57,905 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:49:57,917 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97305395-5eb5-477c-9d12-b90665010054/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-12-06 18:49:58,106 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97305395-5eb5-477c-9d12-b90665010054/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 18:49:58,107 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 1 more)] === [2021-12-06 18:49:58,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:49:58,109 INFO L85 PathProgramCache]: Analyzing trace with hash -1812026457, now seen corresponding path program 1 times [2021-12-06 18:49:58,111 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 18:49:58,111 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [840463851] [2021-12-06 18:49:58,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:49:58,112 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 18:49:58,112 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97305395-5eb5-477c-9d12-b90665010054/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 18:49:58,114 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97305395-5eb5-477c-9d12-b90665010054/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 18:49:58,116 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97305395-5eb5-477c-9d12-b90665010054/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-12-06 18:49:58,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:49:58,281 INFO L263 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-06 18:49:58,284 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 18:49:58,325 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 18:49:58,326 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 18:49:58,326 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 18:49:58,326 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [840463851] [2021-12-06 18:49:58,326 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [840463851] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:49:58,326 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:49:58,326 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-06 18:49:58,326 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [769771830] [2021-12-06 18:49:58,327 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:49:58,328 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-06 18:49:58,328 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 18:49:58,328 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 18:49:58,328 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-06 18:49:58,328 INFO L87 Difference]: Start difference. First operand 24 states and 26 transitions. Second operand has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 18:49:58,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:49:58,341 INFO L93 Difference]: Finished difference Result 39 states and 40 transitions. [2021-12-06 18:49:58,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-06 18:49:58,342 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 12 [2021-12-06 18:49:58,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:49:58,342 INFO L225 Difference]: With dead ends: 39 [2021-12-06 18:49:58,343 INFO L226 Difference]: Without dead ends: 39 [2021-12-06 18:49:58,343 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-06 18:49:58,344 INFO L933 BasicCegarLoop]: 24 mSDtfsCounter, 11 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 88 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 18:49:58,344 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11 Valid, 88 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 18:49:58,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2021-12-06 18:49:58,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 28. [2021-12-06 18:49:58,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 21 states have (on average 1.2857142857142858) internal successors, (27), 24 states have internal predecessors, (27), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-12-06 18:49:58,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 30 transitions. [2021-12-06 18:49:58,348 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 30 transitions. Word has length 12 [2021-12-06 18:49:58,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:49:58,349 INFO L470 AbstractCegarLoop]: Abstraction has 28 states and 30 transitions. [2021-12-06 18:49:58,349 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 18:49:58,349 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 30 transitions. [2021-12-06 18:49:58,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-12-06 18:49:58,349 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:49:58,350 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:49:58,356 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97305395-5eb5-477c-9d12-b90665010054/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (3)] Ended with exit code 0 [2021-12-06 18:49:58,550 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97305395-5eb5-477c-9d12-b90665010054/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 18:49:58,552 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 1 more)] === [2021-12-06 18:49:58,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:49:58,554 INFO L85 PathProgramCache]: Analyzing trace with hash -69216122, now seen corresponding path program 1 times [2021-12-06 18:49:58,555 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 18:49:58,556 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1723976795] [2021-12-06 18:49:58,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:49:58,557 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 18:49:58,557 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97305395-5eb5-477c-9d12-b90665010054/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 18:49:58,559 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97305395-5eb5-477c-9d12-b90665010054/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 18:49:58,562 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97305395-5eb5-477c-9d12-b90665010054/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-12-06 18:49:58,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:49:58,686 INFO L263 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 9 conjunts are in the unsatisfiable core [2021-12-06 18:49:58,690 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 18:49:58,746 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 18:49:58,747 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 18:49:58,747 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 18:49:58,747 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1723976795] [2021-12-06 18:49:58,747 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1723976795] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:49:58,747 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:49:58,747 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-06 18:49:58,747 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [542873006] [2021-12-06 18:49:58,747 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:49:58,748 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-06 18:49:58,748 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 18:49:58,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-06 18:49:58,748 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-06 18:49:58,748 INFO L87 Difference]: Start difference. First operand 28 states and 30 transitions. Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 18:49:58,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:49:58,764 INFO L93 Difference]: Finished difference Result 30 states and 30 transitions. [2021-12-06 18:49:58,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-06 18:49:58,764 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 12 [2021-12-06 18:49:58,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:49:58,765 INFO L225 Difference]: With dead ends: 30 [2021-12-06 18:49:58,765 INFO L226 Difference]: Without dead ends: 30 [2021-12-06 18:49:58,765 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 [2021-12-06 18:49:58,766 INFO L933 BasicCegarLoop]: 21 mSDtfsCounter, 9 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 57 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 18:49:58,766 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9 Valid, 57 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 18:49:58,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2021-12-06 18:49:58,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 26. [2021-12-06 18:49:58,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 20 states have (on average 1.2) internal successors, (24), 22 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-12-06 18:49:58,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 27 transitions. [2021-12-06 18:49:58,770 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 27 transitions. Word has length 12 [2021-12-06 18:49:58,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:49:58,770 INFO L470 AbstractCegarLoop]: Abstraction has 26 states and 27 transitions. [2021-12-06 18:49:58,770 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 18:49:58,770 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 27 transitions. [2021-12-06 18:49:58,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-12-06 18:49:58,771 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:49:58,771 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:49:58,777 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97305395-5eb5-477c-9d12-b90665010054/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (4)] Ended with exit code 0 [2021-12-06 18:49:58,971 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97305395-5eb5-477c-9d12-b90665010054/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 18:49:58,973 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 1 more)] === [2021-12-06 18:49:58,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:49:58,975 INFO L85 PathProgramCache]: Analyzing trace with hash -340092307, now seen corresponding path program 1 times [2021-12-06 18:49:58,976 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 18:49:58,976 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1733337437] [2021-12-06 18:49:58,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:49:58,977 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 18:49:58,977 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97305395-5eb5-477c-9d12-b90665010054/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 18:49:58,980 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97305395-5eb5-477c-9d12-b90665010054/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 18:49:58,982 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97305395-5eb5-477c-9d12-b90665010054/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-12-06 18:49:59,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:49:59,082 INFO L263 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 12 conjunts are in the unsatisfiable core [2021-12-06 18:49:59,083 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 18:49:59,207 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 18:49:59,207 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 18:49:59,208 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 18:49:59,208 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1733337437] [2021-12-06 18:49:59,208 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1733337437] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:49:59,208 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:49:59,208 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-06 18:49:59,208 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1204424112] [2021-12-06 18:49:59,209 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:49:59,209 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-06 18:49:59,209 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 18:49:59,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-06 18:49:59,210 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-12-06 18:49:59,210 INFO L87 Difference]: Start difference. First operand 26 states and 27 transitions. Second operand has 9 states, 8 states have (on average 1.375) internal successors, (11), 7 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 18:49:59,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:49:59,363 INFO L93 Difference]: Finished difference Result 36 states and 36 transitions. [2021-12-06 18:49:59,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-06 18:49:59,363 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 1.375) internal successors, (11), 7 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 13 [2021-12-06 18:49:59,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:49:59,364 INFO L225 Difference]: With dead ends: 36 [2021-12-06 18:49:59,364 INFO L226 Difference]: Without dead ends: 36 [2021-12-06 18:49:59,364 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2021-12-06 18:49:59,365 INFO L933 BasicCegarLoop]: 16 mSDtfsCounter, 59 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 84 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 18:49:59,365 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [60 Valid, 84 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-06 18:49:59,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2021-12-06 18:49:59,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 30. [2021-12-06 18:49:59,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 24 states have (on average 1.1666666666666667) internal successors, (28), 26 states have internal predecessors, (28), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-12-06 18:49:59,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 31 transitions. [2021-12-06 18:49:59,369 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 31 transitions. Word has length 13 [2021-12-06 18:49:59,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:49:59,369 INFO L470 AbstractCegarLoop]: Abstraction has 30 states and 31 transitions. [2021-12-06 18:49:59,369 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 1.375) internal successors, (11), 7 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 18:49:59,369 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 31 transitions. [2021-12-06 18:49:59,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-12-06 18:49:59,370 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:49:59,370 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:49:59,377 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97305395-5eb5-477c-9d12-b90665010054/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (5)] Ended with exit code 0 [2021-12-06 18:49:59,570 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97305395-5eb5-477c-9d12-b90665010054/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 18:49:59,572 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 1 more)] === [2021-12-06 18:49:59,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:49:59,574 INFO L85 PathProgramCache]: Analyzing trace with hash 2147420526, now seen corresponding path program 1 times [2021-12-06 18:49:59,574 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 18:49:59,575 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [828586001] [2021-12-06 18:49:59,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:49:59,576 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 18:49:59,576 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97305395-5eb5-477c-9d12-b90665010054/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 18:49:59,578 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97305395-5eb5-477c-9d12-b90665010054/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 18:49:59,581 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97305395-5eb5-477c-9d12-b90665010054/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-12-06 18:49:59,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:49:59,702 INFO L263 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 7 conjunts are in the unsatisfiable core [2021-12-06 18:49:59,705 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 18:49:59,762 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 18:49:59,762 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 18:49:59,762 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 18:49:59,762 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [828586001] [2021-12-06 18:49:59,762 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [828586001] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:49:59,762 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:49:59,762 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-06 18:49:59,763 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [152941221] [2021-12-06 18:49:59,763 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:49:59,763 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-06 18:49:59,763 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 18:49:59,764 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 18:49:59,764 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-06 18:49:59,764 INFO L87 Difference]: Start difference. First operand 30 states and 31 transitions. Second operand has 5 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 18:49:59,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:49:59,776 INFO L93 Difference]: Finished difference Result 29 states and 28 transitions. [2021-12-06 18:49:59,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-06 18:49:59,777 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 13 [2021-12-06 18:49:59,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:49:59,777 INFO L225 Difference]: With dead ends: 29 [2021-12-06 18:49:59,777 INFO L226 Difference]: Without dead ends: 29 [2021-12-06 18:49:59,778 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-06 18:49:59,779 INFO L933 BasicCegarLoop]: 23 mSDtfsCounter, 6 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 81 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 18:49:59,779 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6 Valid, 81 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 18:49:59,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2021-12-06 18:49:59,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 25. [2021-12-06 18:49:59,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 20 states have (on average 1.1) internal successors, (22), 21 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-12-06 18:49:59,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 25 transitions. [2021-12-06 18:49:59,783 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 25 transitions. Word has length 13 [2021-12-06 18:49:59,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:49:59,784 INFO L470 AbstractCegarLoop]: Abstraction has 25 states and 25 transitions. [2021-12-06 18:49:59,784 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 18:49:59,784 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 25 transitions. [2021-12-06 18:49:59,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-12-06 18:49:59,785 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:49:59,785 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:49:59,792 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97305395-5eb5-477c-9d12-b90665010054/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (6)] Ended with exit code 0 [2021-12-06 18:49:59,986 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97305395-5eb5-477c-9d12-b90665010054/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 18:49:59,987 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 1 more)] === [2021-12-06 18:49:59,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:49:59,988 INFO L85 PathProgramCache]: Analyzing trace with hash -1952926869, now seen corresponding path program 1 times [2021-12-06 18:49:59,989 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 18:49:59,989 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [324583640] [2021-12-06 18:49:59,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:49:59,990 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 18:49:59,990 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97305395-5eb5-477c-9d12-b90665010054/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 18:49:59,992 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97305395-5eb5-477c-9d12-b90665010054/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 18:50:00,004 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97305395-5eb5-477c-9d12-b90665010054/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-12-06 18:50:00,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:50:00,101 INFO L263 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 11 conjunts are in the unsatisfiable core [2021-12-06 18:50:00,102 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 18:50:00,132 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 [2021-12-06 18:50:00,188 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 18:50:00,188 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 18:50:00,188 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 18:50:00,188 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [324583640] [2021-12-06 18:50:00,189 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [324583640] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:50:00,189 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:50:00,189 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-06 18:50:00,189 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [455247142] [2021-12-06 18:50:00,189 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:50:00,189 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-06 18:50:00,189 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 18:50:00,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-06 18:50:00,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-12-06 18:50:00,190 INFO L87 Difference]: Start difference. First operand 25 states and 25 transitions. Second operand has 8 states, 7 states have (on average 1.7142857142857142) internal successors, (12), 7 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 18:50:00,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:50:00,266 INFO L93 Difference]: Finished difference Result 24 states and 24 transitions. [2021-12-06 18:50:00,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-06 18:50:00,266 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 1.7142857142857142) internal successors, (12), 7 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 14 [2021-12-06 18:50:00,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:50:00,266 INFO L225 Difference]: With dead ends: 24 [2021-12-06 18:50:00,267 INFO L226 Difference]: Without dead ends: 24 [2021-12-06 18:50:00,267 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2021-12-06 18:50:00,268 INFO L933 BasicCegarLoop]: 14 mSDtfsCounter, 12 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 62 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 18:50:00,268 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [12 Valid, 62 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 18:50:00,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2021-12-06 18:50:00,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2021-12-06 18:50:00,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 20 states have (on average 1.05) internal successors, (21), 20 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-12-06 18:50:00,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 24 transitions. [2021-12-06 18:50:00,272 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 24 transitions. Word has length 14 [2021-12-06 18:50:00,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:50:00,272 INFO L470 AbstractCegarLoop]: Abstraction has 24 states and 24 transitions. [2021-12-06 18:50:00,272 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 1.7142857142857142) internal successors, (12), 7 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 18:50:00,273 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 24 transitions. [2021-12-06 18:50:00,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-12-06 18:50:00,273 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:50:00,273 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:50:00,280 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97305395-5eb5-477c-9d12-b90665010054/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (7)] Ended with exit code 0 [2021-12-06 18:50:00,474 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97305395-5eb5-477c-9d12-b90665010054/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 18:50:00,475 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 1 more)] === [2021-12-06 18:50:00,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:50:00,477 INFO L85 PathProgramCache]: Analyzing trace with hash -2091935799, now seen corresponding path program 1 times [2021-12-06 18:50:00,477 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 18:50:00,478 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [46110821] [2021-12-06 18:50:00,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:50:00,478 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 18:50:00,479 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97305395-5eb5-477c-9d12-b90665010054/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 18:50:00,481 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97305395-5eb5-477c-9d12-b90665010054/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 18:50:00,483 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97305395-5eb5-477c-9d12-b90665010054/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-12-06 18:50:00,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:50:00,559 INFO L263 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-06 18:50:00,560 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 18:50:00,582 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 18:50:00,583 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 18:50:00,583 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 18:50:00,583 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [46110821] [2021-12-06 18:50:00,583 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [46110821] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:50:00,583 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:50:00,583 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-06 18:50:00,583 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [474086796] [2021-12-06 18:50:00,583 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:50:00,583 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-06 18:50:00,583 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 18:50:00,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-06 18:50:00,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-06 18:50:00,584 INFO L87 Difference]: Start difference. First operand 24 states and 24 transitions. Second operand has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 18:50:00,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:50:00,598 INFO L93 Difference]: Finished difference Result 27 states and 26 transitions. [2021-12-06 18:50:00,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-06 18:50:00,599 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 14 [2021-12-06 18:50:00,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:50:00,599 INFO L225 Difference]: With dead ends: 27 [2021-12-06 18:50:00,600 INFO L226 Difference]: Without dead ends: 18 [2021-12-06 18:50:00,600 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-06 18:50:00,601 INFO L933 BasicCegarLoop]: 22 mSDtfsCounter, 0 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 18:50:00,601 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 48 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 18:50:00,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2021-12-06 18:50:00,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2021-12-06 18:50:00,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 15 states have (on average 1.0) internal successors, (15), 15 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 18:50:00,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 17 transitions. [2021-12-06 18:50:00,604 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 17 transitions. Word has length 14 [2021-12-06 18:50:00,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:50:00,604 INFO L470 AbstractCegarLoop]: Abstraction has 18 states and 17 transitions. [2021-12-06 18:50:00,604 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 18:50:00,605 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 17 transitions. [2021-12-06 18:50:00,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-12-06 18:50:00,605 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:50:00,605 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:50:00,612 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97305395-5eb5-477c-9d12-b90665010054/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (8)] Ended with exit code 0 [2021-12-06 18:50:00,806 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97305395-5eb5-477c-9d12-b90665010054/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 18:50:00,808 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 1 more)] === [2021-12-06 18:50:00,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:50:00,809 INFO L85 PathProgramCache]: Analyzing trace with hash -17303116, now seen corresponding path program 1 times [2021-12-06 18:50:00,810 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 18:50:00,810 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [758602465] [2021-12-06 18:50:00,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:50:00,811 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 18:50:00,811 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97305395-5eb5-477c-9d12-b90665010054/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 18:50:00,813 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97305395-5eb5-477c-9d12-b90665010054/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 18:50:00,816 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97305395-5eb5-477c-9d12-b90665010054/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-12-06 18:50:00,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:50:00,878 INFO L263 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 16 conjunts are in the unsatisfiable core [2021-12-06 18:50:00,879 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 18:50:01,114 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 18:50:01,114 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 18:50:01,114 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 18:50:01,114 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [758602465] [2021-12-06 18:50:01,114 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [758602465] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:50:01,114 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:50:01,114 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-12-06 18:50:01,115 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [602043601] [2021-12-06 18:50:01,115 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:50:01,115 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-12-06 18:50:01,115 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 18:50:01,115 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-12-06 18:50:01,115 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2021-12-06 18:50:01,116 INFO L87 Difference]: Start difference. First operand 18 states and 17 transitions. Second operand has 11 states, 9 states have (on average 1.6666666666666667) internal successors, (15), 10 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 18:50:01,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:50:01,123 INFO L93 Difference]: Finished difference Result 17 states and 16 transitions. [2021-12-06 18:50:01,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-06 18:50:01,124 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 1.6666666666666667) internal successors, (15), 10 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 17 [2021-12-06 18:50:01,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:50:01,124 INFO L225 Difference]: With dead ends: 17 [2021-12-06 18:50:01,124 INFO L226 Difference]: Without dead ends: 0 [2021-12-06 18:50:01,125 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2021-12-06 18:50:01,125 INFO L933 BasicCegarLoop]: 8 mSDtfsCounter, 2 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 46 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 34 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 18:50:01,125 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 46 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 34 Unchecked, 0.0s Time] [2021-12-06 18:50:01,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-12-06 18:50:01,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-12-06 18:50:01,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:50:01,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-12-06 18:50:01,126 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2021-12-06 18:50:01,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:50:01,126 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-06 18:50:01,127 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 1.6666666666666667) internal successors, (15), 10 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 18:50:01,127 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-12-06 18:50:01,127 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-12-06 18:50:01,128 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_FREE (3 of 4 remaining) [2021-12-06 18:50:01,129 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE (2 of 4 remaining) [2021-12-06 18:50:01,129 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (1 of 4 remaining) [2021-12-06 18:50:01,129 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK (0 of 4 remaining) [2021-12-06 18:50:01,136 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97305395-5eb5-477c-9d12-b90665010054/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (9)] Ended with exit code 0 [2021-12-06 18:50:01,330 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97305395-5eb5-477c-9d12-b90665010054/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 18:50:01,339 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:50:01,343 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-06 18:50:01,350 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.12 06:50:01 BoogieIcfgContainer [2021-12-06 18:50:01,350 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-06 18:50:01,352 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-06 18:50:01,352 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-06 18:50:01,352 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-06 18:50:01,354 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 06:49:57" (3/4) ... [2021-12-06 18:50:01,361 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-12-06 18:50:01,377 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_malloc [2021-12-06 18:50:01,387 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2021-12-06 18:50:01,388 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-12-06 18:50:01,389 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-12-06 18:50:01,424 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97305395-5eb5-477c-9d12-b90665010054/bin/uautomizer-DrprNOufMa/witness.graphml [2021-12-06 18:50:01,424 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-06 18:50:01,425 INFO L158 Benchmark]: Toolchain (without parser) took 4685.24ms. Allocated memory was 56.6MB in the beginning and 83.9MB in the end (delta: 27.3MB). Free memory was 33.7MB in the beginning and 44.6MB in the end (delta: -10.9MB). Peak memory consumption was 15.3MB. Max. memory is 16.1GB. [2021-12-06 18:50:01,425 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 56.6MB. Free memory is still 37.6MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-06 18:50:01,425 INFO L158 Benchmark]: CACSL2BoogieTranslator took 437.37ms. Allocated memory was 56.6MB in the beginning and 83.9MB in the end (delta: 27.3MB). Free memory was 33.5MB in the beginning and 63.2MB in the end (delta: -29.7MB). Peak memory consumption was 14.6MB. Max. memory is 16.1GB. [2021-12-06 18:50:01,426 INFO L158 Benchmark]: Boogie Procedure Inliner took 45.02ms. Allocated memory is still 83.9MB. Free memory was 63.2MB in the beginning and 60.9MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-06 18:50:01,426 INFO L158 Benchmark]: Boogie Preprocessor took 18.50ms. Allocated memory is still 83.9MB. Free memory was 60.9MB in the beginning and 59.8MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-06 18:50:01,426 INFO L158 Benchmark]: RCFGBuilder took 216.82ms. Allocated memory is still 83.9MB. Free memory was 59.5MB in the beginning and 49.0MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-12-06 18:50:01,426 INFO L158 Benchmark]: TraceAbstraction took 3889.68ms. Allocated memory is still 83.9MB. Free memory was 48.6MB in the beginning and 47.2MB in the end (delta: 1.4MB). Peak memory consumption was 688.7kB. Max. memory is 16.1GB. [2021-12-06 18:50:01,427 INFO L158 Benchmark]: Witness Printer took 72.51ms. Allocated memory is still 83.9MB. Free memory was 47.2MB in the beginning and 44.6MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-06 18:50:01,428 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 56.6MB. Free memory is still 37.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 437.37ms. Allocated memory was 56.6MB in the beginning and 83.9MB in the end (delta: 27.3MB). Free memory was 33.5MB in the beginning and 63.2MB in the end (delta: -29.7MB). Peak memory consumption was 14.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 45.02ms. Allocated memory is still 83.9MB. Free memory was 63.2MB in the beginning and 60.9MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 18.50ms. Allocated memory is still 83.9MB. Free memory was 60.9MB in the beginning and 59.8MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 216.82ms. Allocated memory is still 83.9MB. Free memory was 59.5MB in the beginning and 49.0MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 3889.68ms. Allocated memory is still 83.9MB. Free memory was 48.6MB in the beginning and 47.2MB in the end (delta: 1.4MB). Peak memory consumption was 688.7kB. Max. memory is 16.1GB. * Witness Printer took 72.51ms. Allocated memory is still 83.9MB. Free memory was 47.2MB in the beginning and 44.6MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 772]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 772]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 772]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 779]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 23 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 3.8s, OverallIterations: 8, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 165 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 164 mSDsluCounter, 603 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 34 IncrementalHoareTripleChecker+Unchecked, 451 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 229 IncrementalHoareTripleChecker+Invalid, 267 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 152 mSDtfsCounter, 229 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 110 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=30occurred in iteration=4, InterpolantAutomatonStates: 55, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 8 MinimizatonAttempts, 37 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 107 NumberOfCodeBlocks, 107 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 99 ConstructedInterpolants, 12 QuantifiedInterpolants, 549 SizeOfPredicates, 31 NumberOfNonLiveVariables, 404 ConjunctsInSsa, 73 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2021-12-06 18:50:01,454 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97305395-5eb5-477c-9d12-b90665010054/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE