./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/ldv-memsafety/memleaks_test4-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 47ea0209 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62e129be-4727-4f09-a9c6-114dc1736f2d/bin/uautomizer-AkOaLMaTGY/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62e129be-4727-4f09-a9c6-114dc1736f2d/bin/uautomizer-AkOaLMaTGY/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62e129be-4727-4f09-a9c6-114dc1736f2d/bin/uautomizer-AkOaLMaTGY/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62e129be-4727-4f09-a9c6-114dc1736f2d/bin/uautomizer-AkOaLMaTGY/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test4-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62e129be-4727-4f09-a9c6-114dc1736f2d/bin/uautomizer-AkOaLMaTGY/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62e129be-4727-4f09-a9c6-114dc1736f2d/bin/uautomizer-AkOaLMaTGY --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 22dc13e3a229fecb317fd9f602c1cc7d4d730ee1501bd597861fd3e87e82c9e9 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 07:47:21,188 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 07:47:21,189 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 07:47:21,223 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 07:47:21,224 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 07:47:21,225 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 07:47:21,227 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 07:47:21,239 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 07:47:21,243 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 07:47:21,251 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 07:47:21,252 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 07:47:21,254 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 07:47:21,255 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 07:47:21,258 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 07:47:21,261 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 07:47:21,265 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 07:47:21,267 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 07:47:21,268 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 07:47:21,273 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 07:47:21,279 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 07:47:21,282 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 07:47:21,283 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 07:47:21,287 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 07:47:21,288 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 07:47:21,294 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 07:47:21,294 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 07:47:21,295 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 07:47:21,297 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 07:47:21,298 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 07:47:21,299 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 07:47:21,300 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 07:47:21,301 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 07:47:21,303 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 07:47:21,305 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 07:47:21,307 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 07:47:21,307 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 07:47:21,308 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 07:47:21,308 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 07:47:21,308 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 07:47:21,309 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 07:47:21,310 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 07:47:21,311 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62e129be-4727-4f09-a9c6-114dc1736f2d/bin/uautomizer-AkOaLMaTGY/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2021-11-07 07:47:21,356 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 07:47:21,357 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 07:47:21,357 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-07 07:47:21,358 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-07 07:47:21,359 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-07 07:47:21,359 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-07 07:47:21,360 INFO L138 SettingsManager]: * Use SBE=true [2021-11-07 07:47:21,360 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 07:47:21,360 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-07 07:47:21,360 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-07 07:47:21,362 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 07:47:21,362 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-07 07:47:21,362 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 07:47:21,362 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-11-07 07:47:21,363 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-11-07 07:47:21,363 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-11-07 07:47:21,363 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 07:47:21,363 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 07:47:21,363 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-07 07:47:21,364 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 07:47:21,364 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 07:47:21,364 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 07:47:21,364 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 07:47:21,365 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 07:47:21,365 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 07:47:21,365 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 07:47:21,365 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-07 07:47:21,366 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 07:47:21,366 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 07:47:21,368 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_62e129be-4727-4f09-a9c6-114dc1736f2d/bin/uautomizer-AkOaLMaTGY/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62e129be-4727-4f09-a9c6-114dc1736f2d/bin/uautomizer-AkOaLMaTGY Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 22dc13e3a229fecb317fd9f602c1cc7d4d730ee1501bd597861fd3e87e82c9e9 [2021-11-07 07:47:21,688 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 07:47:21,709 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 07:47:21,712 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 07:47:21,713 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 07:47:21,714 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 07:47:21,715 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62e129be-4727-4f09-a9c6-114dc1736f2d/bin/uautomizer-AkOaLMaTGY/../../sv-benchmarks/c/ldv-memsafety/memleaks_test4-2.i [2021-11-07 07:47:21,780 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62e129be-4727-4f09-a9c6-114dc1736f2d/bin/uautomizer-AkOaLMaTGY/data/19881ca1d/9a7e271702a9430e9f907e459298a160/FLAG93fad8cc3 [2021-11-07 07:47:22,284 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 07:47:22,285 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62e129be-4727-4f09-a9c6-114dc1736f2d/sv-benchmarks/c/ldv-memsafety/memleaks_test4-2.i [2021-11-07 07:47:22,304 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62e129be-4727-4f09-a9c6-114dc1736f2d/bin/uautomizer-AkOaLMaTGY/data/19881ca1d/9a7e271702a9430e9f907e459298a160/FLAG93fad8cc3 [2021-11-07 07:47:22,592 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62e129be-4727-4f09-a9c6-114dc1736f2d/bin/uautomizer-AkOaLMaTGY/data/19881ca1d/9a7e271702a9430e9f907e459298a160 [2021-11-07 07:47:22,595 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 07:47:22,597 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-11-07 07:47:22,602 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 07:47:22,602 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 07:47:22,606 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 07:47:22,606 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 07:47:22" (1/1) ... [2021-11-07 07:47:22,607 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6889a821 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:47:22, skipping insertion in model container [2021-11-07 07:47:22,608 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 07:47:22" (1/1) ... [2021-11-07 07:47:22,620 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 07:47:22,669 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 07:47:23,044 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 07:47:23,070 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2021-11-07 07:47:23,071 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@6215244b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:47:23, skipping insertion in model container [2021-11-07 07:47:23,071 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 07:47:23,072 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.preprocessor [2021-11-07 07:47:23,075 INFO L168 Benchmark]: Toolchain (without parser) took 476.73 ms. Allocated memory is still 130.0 MB. Free memory was 87.8 MB in the beginning and 100.1 MB in the end (delta: -12.3 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-11-07 07:47:23,076 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 130.0 MB. Free memory is still 105.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 07:47:23,078 INFO L168 Benchmark]: CACSL2BoogieTranslator took 470.60 ms. Allocated memory is still 130.0 MB. Free memory was 87.6 MB in the beginning and 100.1 MB in the end (delta: -12.5 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-11-07 07:47:23,080 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 130.0 MB. Free memory is still 105.7 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 470.60 ms. Allocated memory is still 130.0 MB. Free memory was 87.6 MB in the beginning and 100.1 MB in the end (delta: -12.5 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * 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_62e129be-4727-4f09-a9c6-114dc1736f2d/bin/uautomizer-AkOaLMaTGY/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62e129be-4727-4f09-a9c6-114dc1736f2d/bin/uautomizer-AkOaLMaTGY/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62e129be-4727-4f09-a9c6-114dc1736f2d/bin/uautomizer-AkOaLMaTGY/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62e129be-4727-4f09-a9c6-114dc1736f2d/bin/uautomizer-AkOaLMaTGY/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test4-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62e129be-4727-4f09-a9c6-114dc1736f2d/bin/uautomizer-AkOaLMaTGY/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62e129be-4727-4f09-a9c6-114dc1736f2d/bin/uautomizer-AkOaLMaTGY --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 22dc13e3a229fecb317fd9f602c1cc7d4d730ee1501bd597861fd3e87e82c9e9 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 07:47:25,382 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 07:47:25,386 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 07:47:25,438 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 07:47:25,439 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 07:47:25,443 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 07:47:25,445 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 07:47:25,451 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 07:47:25,454 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 07:47:25,460 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 07:47:25,461 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 07:47:25,463 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 07:47:25,464 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 07:47:25,466 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 07:47:25,468 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 07:47:25,472 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 07:47:25,474 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 07:47:25,475 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 07:47:25,486 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 07:47:25,494 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 07:47:25,496 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 07:47:25,497 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 07:47:25,500 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 07:47:25,503 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 07:47:25,512 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 07:47:25,512 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 07:47:25,513 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 07:47:25,515 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 07:47:25,515 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 07:47:25,517 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 07:47:25,517 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 07:47:25,518 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 07:47:25,520 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 07:47:25,521 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 07:47:25,522 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 07:47:25,523 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 07:47:25,524 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 07:47:25,524 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 07:47:25,525 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 07:47:25,527 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 07:47:25,527 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 07:47:25,532 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62e129be-4727-4f09-a9c6-114dc1736f2d/bin/uautomizer-AkOaLMaTGY/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2021-11-07 07:47:25,578 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 07:47:25,579 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 07:47:25,580 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-07 07:47:25,580 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-07 07:47:25,582 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-07 07:47:25,582 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-07 07:47:25,582 INFO L138 SettingsManager]: * Use SBE=true [2021-11-07 07:47:25,583 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 07:47:25,583 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-07 07:47:25,583 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-07 07:47:25,584 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 07:47:25,584 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-07 07:47:25,585 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 07:47:25,585 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-11-07 07:47:25,585 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-11-07 07:47:25,585 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-11-07 07:47:25,586 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 07:47:25,586 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 07:47:25,586 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-07 07:47:25,586 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-07 07:47:25,587 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-07 07:47:25,587 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 07:47:25,587 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 07:47:25,587 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 07:47:25,588 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 07:47:25,588 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 07:47:25,588 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 07:47:25,589 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 07:47:25,589 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-11-07 07:47:25,589 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-07 07:47:25,589 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 07:47:25,590 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 07:47:25,590 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_62e129be-4727-4f09-a9c6-114dc1736f2d/bin/uautomizer-AkOaLMaTGY/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62e129be-4727-4f09-a9c6-114dc1736f2d/bin/uautomizer-AkOaLMaTGY Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 22dc13e3a229fecb317fd9f602c1cc7d4d730ee1501bd597861fd3e87e82c9e9 [2021-11-07 07:47:25,928 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 07:47:25,952 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 07:47:25,955 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 07:47:25,956 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 07:47:25,957 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 07:47:25,960 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62e129be-4727-4f09-a9c6-114dc1736f2d/bin/uautomizer-AkOaLMaTGY/../../sv-benchmarks/c/ldv-memsafety/memleaks_test4-2.i [2021-11-07 07:47:26,040 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62e129be-4727-4f09-a9c6-114dc1736f2d/bin/uautomizer-AkOaLMaTGY/data/6f854f6ee/32e2e2bb3b474d86aa73183b15ec69ff/FLAG33b3ae230 [2021-11-07 07:47:26,599 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 07:47:26,600 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62e129be-4727-4f09-a9c6-114dc1736f2d/sv-benchmarks/c/ldv-memsafety/memleaks_test4-2.i [2021-11-07 07:47:26,624 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62e129be-4727-4f09-a9c6-114dc1736f2d/bin/uautomizer-AkOaLMaTGY/data/6f854f6ee/32e2e2bb3b474d86aa73183b15ec69ff/FLAG33b3ae230 [2021-11-07 07:47:26,879 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62e129be-4727-4f09-a9c6-114dc1736f2d/bin/uautomizer-AkOaLMaTGY/data/6f854f6ee/32e2e2bb3b474d86aa73183b15ec69ff [2021-11-07 07:47:26,888 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 07:47:26,891 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-11-07 07:47:26,895 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 07:47:26,895 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 07:47:26,899 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 07:47:26,900 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 07:47:26" (1/1) ... [2021-11-07 07:47:26,903 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2e4c601b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:47:26, skipping insertion in model container [2021-11-07 07:47:26,903 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 07:47:26" (1/1) ... [2021-11-07 07:47:26,910 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 07:47:26,975 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 07:47:27,487 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 07:47:27,507 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-07 07:47:27,517 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 07:47:27,560 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 07:47:27,569 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 07:47:27,618 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 07:47:27,686 INFO L208 MainTranslator]: Completed translation [2021-11-07 07:47:27,687 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:47:27 WrapperNode [2021-11-07 07:47:27,687 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 07:47:27,689 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 07:47:27,689 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 07:47:27,689 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 07:47:27,701 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:47:27" (1/1) ... [2021-11-07 07:47:27,701 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:47:27" (1/1) ... [2021-11-07 07:47:27,725 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:47:27" (1/1) ... [2021-11-07 07:47:27,725 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:47:27" (1/1) ... [2021-11-07 07:47:27,758 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:47:27" (1/1) ... [2021-11-07 07:47:27,764 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:47:27" (1/1) ... [2021-11-07 07:47:27,771 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:47:27" (1/1) ... [2021-11-07 07:47:27,782 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 07:47:27,783 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 07:47:27,783 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 07:47:27,783 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 07:47:27,784 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:47:27" (1/1) ... [2021-11-07 07:47:27,791 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 07:47:27,803 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62e129be-4727-4f09-a9c6-114dc1736f2d/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:47:27,815 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62e129be-4727-4f09-a9c6-114dc1736f2d/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-07 07:47:27,818 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62e129be-4727-4f09-a9c6-114dc1736f2d/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-07 07:47:27,867 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-11-07 07:47:27,867 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 07:47:27,867 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-07 07:47:27,868 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.setCurrentRoundingMode [2021-11-07 07:47:27,868 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2021-11-07 07:47:27,868 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2021-11-07 07:47:27,868 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2021-11-07 07:47:27,868 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2021-11-07 07:47:27,868 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2021-11-07 07:47:27,868 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_nonpositive [2021-11-07 07:47:27,869 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_positive [2021-11-07 07:47:27,886 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-07 07:47:27,886 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-11-07 07:47:27,886 INFO L138 BoogieDeclarations]: Found implementation of procedure LDV_INIT_LIST_HEAD [2021-11-07 07:47:27,888 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2021-11-07 07:47:27,888 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_del [2021-11-07 07:47:27,888 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add [2021-11-07 07:47:27,889 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add_tail [2021-11-07 07:47:27,889 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_del [2021-11-07 07:47:27,889 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_alloc [2021-11-07 07:47:27,889 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_fill [2021-11-07 07:47:27,889 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_free [2021-11-07 07:47:27,890 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_msg [2021-11-07 07:47:27,890 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_destroy_msgs [2021-11-07 07:47:27,890 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2021-11-07 07:47:27,890 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-11-07 07:47:27,890 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_add_return [2021-11-07 07:47:27,890 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_sub_return [2021-11-07 07:47:27,891 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_sub [2021-11-07 07:47:27,891 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_init [2021-11-07 07:47:27,891 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_get [2021-11-07 07:47:27,891 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_put [2021-11-07 07:47:27,891 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_del [2021-11-07 07:47:27,891 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_cleanup [2021-11-07 07:47:27,892 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_release [2021-11-07 07:47:27,892 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_put [2021-11-07 07:47:27,892 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_get [2021-11-07 07:47:27,892 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init_internal [2021-11-07 07:47:27,892 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init [2021-11-07 07:47:27,892 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_create [2021-11-07 07:47:27,893 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2021-11-07 07:47:27,893 INFO L138 BoogieDeclarations]: Found implementation of procedure g [2021-11-07 07:47:27,893 INFO L138 BoogieDeclarations]: Found implementation of procedure entry_point [2021-11-07 07:47:27,894 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-11-07 07:47:27,894 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-07 07:47:27,894 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-07 07:47:27,894 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-07 07:47:27,895 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2021-11-07 07:47:27,896 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2021-11-07 07:47:27,896 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2021-11-07 07:47:27,896 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2021-11-07 07:47:27,896 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2021-11-07 07:47:27,896 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2021-11-07 07:47:27,896 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2021-11-07 07:47:27,897 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2021-11-07 07:47:27,897 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2021-11-07 07:47:27,897 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2021-11-07 07:47:27,897 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2021-11-07 07:47:27,898 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2021-11-07 07:47:27,898 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2021-11-07 07:47:27,898 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2021-11-07 07:47:27,899 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2021-11-07 07:47:27,900 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2021-11-07 07:47:27,900 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2021-11-07 07:47:27,901 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2021-11-07 07:47:27,901 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2021-11-07 07:47:27,901 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2021-11-07 07:47:27,902 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2021-11-07 07:47:27,902 INFO L130 BoogieDeclarations]: Found specification of procedure select [2021-11-07 07:47:27,902 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2021-11-07 07:47:27,902 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2021-11-07 07:47:27,903 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2021-11-07 07:47:27,903 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2021-11-07 07:47:27,903 INFO L130 BoogieDeclarations]: Found specification of procedure random [2021-11-07 07:47:27,903 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2021-11-07 07:47:27,903 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2021-11-07 07:47:27,903 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2021-11-07 07:47:27,904 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2021-11-07 07:47:27,904 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2021-11-07 07:47:27,904 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2021-11-07 07:47:27,904 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2021-11-07 07:47:27,904 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2021-11-07 07:47:27,905 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2021-11-07 07:47:27,905 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2021-11-07 07:47:27,906 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2021-11-07 07:47:27,906 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2021-11-07 07:47:27,906 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2021-11-07 07:47:27,906 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2021-11-07 07:47:27,906 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2021-11-07 07:47:27,906 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2021-11-07 07:47:27,907 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2021-11-07 07:47:27,907 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2021-11-07 07:47:27,907 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2021-11-07 07:47:27,907 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2021-11-07 07:47:27,907 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2021-11-07 07:47:27,907 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2021-11-07 07:47:27,907 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2021-11-07 07:47:27,908 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2021-11-07 07:47:27,908 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2021-11-07 07:47:27,908 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2021-11-07 07:47:27,908 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2021-11-07 07:47:27,909 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2021-11-07 07:47:27,909 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2021-11-07 07:47:27,909 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2021-11-07 07:47:27,909 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2021-11-07 07:47:27,909 INFO L130 BoogieDeclarations]: Found specification of procedure free [2021-11-07 07:47:27,909 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2021-11-07 07:47:27,910 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2021-11-07 07:47:27,910 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2021-11-07 07:47:27,910 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2021-11-07 07:47:27,910 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-11-07 07:47:27,910 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2021-11-07 07:47:27,910 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2021-11-07 07:47:27,911 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2021-11-07 07:47:27,911 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2021-11-07 07:47:27,911 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2021-11-07 07:47:27,911 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2021-11-07 07:47:27,911 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2021-11-07 07:47:27,911 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2021-11-07 07:47:27,912 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2021-11-07 07:47:27,912 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2021-11-07 07:47:27,912 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2021-11-07 07:47:27,913 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2021-11-07 07:47:27,914 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2021-11-07 07:47:27,916 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2021-11-07 07:47:27,917 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2021-11-07 07:47:27,917 INFO L130 BoogieDeclarations]: Found specification of procedure system [2021-11-07 07:47:27,918 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2021-11-07 07:47:27,918 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2021-11-07 07:47:27,919 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2021-11-07 07:47:27,919 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2021-11-07 07:47:27,920 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2021-11-07 07:47:27,920 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2021-11-07 07:47:27,926 INFO L130 BoogieDeclarations]: Found specification of procedure div [2021-11-07 07:47:27,926 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2021-11-07 07:47:27,927 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2021-11-07 07:47:27,927 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2021-11-07 07:47:27,927 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2021-11-07 07:47:27,928 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2021-11-07 07:47:27,928 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2021-11-07 07:47:27,928 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2021-11-07 07:47:27,928 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2021-11-07 07:47:27,934 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2021-11-07 07:47:27,934 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2021-11-07 07:47:27,934 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2021-11-07 07:47:27,934 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2021-11-07 07:47:27,935 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2021-11-07 07:47:27,935 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2021-11-07 07:47:27,935 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2021-11-07 07:47:27,935 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2021-11-07 07:47:27,935 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2021-11-07 07:47:27,935 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2021-11-07 07:47:27,935 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2021-11-07 07:47:27,936 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2021-11-07 07:47:27,936 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-11-07 07:47:27,936 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-11-07 07:47:27,936 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_nonpositive [2021-11-07 07:47:27,936 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_positive [2021-11-07 07:47:27,936 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2021-11-07 07:47:27,936 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2021-11-07 07:47:27,937 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-07 07:47:27,937 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-07 07:47:27,937 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-11-07 07:47:27,937 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-07 07:47:27,937 INFO L130 BoogieDeclarations]: Found specification of procedure LDV_INIT_LIST_HEAD [2021-11-07 07:47:27,937 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-07 07:47:27,937 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2021-11-07 07:47:27,938 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_del [2021-11-07 07:47:27,938 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add [2021-11-07 07:47:27,938 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-07 07:47:27,938 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add_tail [2021-11-07 07:47:27,938 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_del [2021-11-07 07:47:27,938 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_alloc [2021-11-07 07:47:27,938 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_fill [2021-11-07 07:47:27,939 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-07 07:47:27,939 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_free [2021-11-07 07:47:27,939 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-07 07:47:27,939 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_msg [2021-11-07 07:47:27,940 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_destroy_msgs [2021-11-07 07:47:27,940 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2021-11-07 07:47:27,940 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-11-07 07:47:27,940 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_add_return [2021-11-07 07:47:27,941 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-07 07:47:27,941 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-07 07:47:27,941 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_sub_return [2021-11-07 07:47:27,941 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_sub [2021-11-07 07:47:27,941 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-07 07:47:27,941 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_init [2021-11-07 07:47:27,941 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_get [2021-11-07 07:47:27,942 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_put [2021-11-07 07:47:27,942 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_del [2021-11-07 07:47:27,942 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_cleanup [2021-11-07 07:47:27,942 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_release [2021-11-07 07:47:27,942 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_put [2021-11-07 07:47:27,942 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_get [2021-11-07 07:47:27,942 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init_internal [2021-11-07 07:47:27,943 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init [2021-11-07 07:47:27,945 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_create [2021-11-07 07:47:27,945 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-07 07:47:27,945 INFO L130 BoogieDeclarations]: Found specification of procedure f [2021-11-07 07:47:27,945 INFO L130 BoogieDeclarations]: Found specification of procedure g [2021-11-07 07:47:27,945 INFO L130 BoogieDeclarations]: Found specification of procedure entry_point [2021-11-07 07:47:27,946 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-11-07 07:47:27,946 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-11-07 07:47:27,946 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 07:47:27,946 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-07 07:47:27,946 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 07:47:27,946 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.setCurrentRoundingMode [2021-11-07 07:47:27,946 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-07 07:47:27,946 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-07 07:47:27,947 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-11-07 07:47:27,947 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2021-11-07 07:47:28,489 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-07 07:47:28,902 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-07 07:47:29,223 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 07:47:29,223 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-07 07:47:29,226 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 07:47:29 BoogieIcfgContainer [2021-11-07 07:47:29,226 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 07:47:29,228 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 07:47:29,228 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 07:47:29,231 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 07:47:29,231 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 07:47:26" (1/3) ... [2021-11-07 07:47:29,232 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75b7673a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 07:47:29, skipping insertion in model container [2021-11-07 07:47:29,232 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:47:27" (2/3) ... [2021-11-07 07:47:29,233 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75b7673a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 07:47:29, skipping insertion in model container [2021-11-07 07:47:29,233 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 07:47:29" (3/3) ... [2021-11-07 07:47:29,234 INFO L111 eAbstractionObserver]: Analyzing ICFG memleaks_test4-2.i [2021-11-07 07:47:29,240 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 07:47:29,240 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 77 error locations. [2021-11-07 07:47:29,285 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 07:47:29,291 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-07 07:47:29,292 INFO L340 AbstractCegarLoop]: Starting to check reachability of 77 error locations. [2021-11-07 07:47:29,307 INFO L276 IsEmpty]: Start isEmpty. Operand has 104 states, 57 states have (on average 1.543859649122807) internal successors, (88), 81 states have internal predecessors, (88), 12 states have call successors, (12), 10 states have call predecessors, (12), 10 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2021-11-07 07:47:29,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-11-07 07:47:29,315 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:47:29,316 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 07:47:29,317 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr0ENSURES_VIOLATIONMEMORY_LEAK === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 73 more)] === [2021-11-07 07:47:29,322 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:47:29,322 INFO L85 PathProgramCache]: Analyzing trace with hash -2025190552, now seen corresponding path program 1 times [2021-11-07 07:47:29,333 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-07 07:47:29,334 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1260730185] [2021-11-07 07:47:29,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:47:29,335 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 07:47:29,335 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62e129be-4727-4f09-a9c6-114dc1736f2d/bin/uautomizer-AkOaLMaTGY/mathsat [2021-11-07 07:47:29,340 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62e129be-4727-4f09-a9c6-114dc1736f2d/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 07:47:29,355 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62e129be-4727-4f09-a9c6-114dc1736f2d/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-07 07:47:29,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:47:29,533 INFO L263 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-07 07:47:29,537 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 07:47:29,661 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:47:29,661 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 07:47:29,788 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:47:29,789 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-07 07:47:29,789 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1260730185] [2021-11-07 07:47:29,790 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1260730185] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 07:47:29,790 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 07:47:29,791 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-11-07 07:47:29,793 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1760494316] [2021-11-07 07:47:29,806 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 07:47:29,806 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-07 07:47:29,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 07:47:29,828 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-07 07:47:29,832 INFO L87 Difference]: Start difference. First operand has 104 states, 57 states have (on average 1.543859649122807) internal successors, (88), 81 states have internal predecessors, (88), 12 states have call successors, (12), 10 states have call predecessors, (12), 10 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) Second operand has 5 states, 5 states have (on average 1.8) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (4), 1 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2021-11-07 07:47:29,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:47:29,918 INFO L93 Difference]: Finished difference Result 53 states and 59 transitions. [2021-11-07 07:47:29,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 07:47:29,920 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 1.8) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (4), 1 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) Word has length 16 [2021-11-07 07:47:29,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:47:29,931 INFO L225 Difference]: With dead ends: 53 [2021-11-07 07:47:29,932 INFO L226 Difference]: Without dead ends: 50 [2021-11-07 07:47:29,934 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-07 07:47:29,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2021-11-07 07:47:29,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 35. [2021-11-07 07:47:29,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 19 states have (on average 1.4210526315789473) internal successors, (27), 25 states have internal predecessors, (27), 5 states have call successors, (5), 4 states have call predecessors, (5), 4 states have return successors, (6), 5 states have call predecessors, (6), 4 states have call successors, (6) [2021-11-07 07:47:29,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 38 transitions. [2021-11-07 07:47:29,989 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 38 transitions. Word has length 16 [2021-11-07 07:47:29,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:47:29,990 INFO L470 AbstractCegarLoop]: Abstraction has 35 states and 38 transitions. [2021-11-07 07:47:29,990 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1.8) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (4), 1 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2021-11-07 07:47:29,990 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 38 transitions. [2021-11-07 07:47:29,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-11-07 07:47:29,994 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:47:29,994 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 07:47:30,014 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62e129be-4727-4f09-a9c6-114dc1736f2d/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-07 07:47:30,214 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62e129be-4727-4f09-a9c6-114dc1736f2d/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 [2021-11-07 07:47:30,215 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting mainErr0ENSURES_VIOLATIONMEMORY_LEAK === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 73 more)] === [2021-11-07 07:47:30,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:47:30,220 INFO L85 PathProgramCache]: Analyzing trace with hash -282380217, now seen corresponding path program 1 times [2021-11-07 07:47:30,222 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-07 07:47:30,223 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [36766506] [2021-11-07 07:47:30,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:47:30,223 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 07:47:30,224 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62e129be-4727-4f09-a9c6-114dc1736f2d/bin/uautomizer-AkOaLMaTGY/mathsat [2021-11-07 07:47:30,225 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62e129be-4727-4f09-a9c6-114dc1736f2d/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 07:47:30,274 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62e129be-4727-4f09-a9c6-114dc1736f2d/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-07 07:47:30,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:47:30,398 INFO L263 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-07 07:47:30,400 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 07:47:30,497 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:47:30,497 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 07:47:30,600 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:47:30,601 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-07 07:47:30,601 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [36766506] [2021-11-07 07:47:30,602 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [36766506] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 07:47:30,602 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 07:47:30,602 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-07 07:47:30,602 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1056403630] [2021-11-07 07:47:30,612 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 07:47:30,612 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-07 07:47:30,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 07:47:30,616 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 07:47:30,616 INFO L87 Difference]: Start difference. First operand 35 states and 38 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-11-07 07:47:30,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:47:30,673 INFO L93 Difference]: Finished difference Result 46 states and 50 transitions. [2021-11-07 07:47:30,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 07:47:30,673 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 16 [2021-11-07 07:47:30,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:47:30,676 INFO L225 Difference]: With dead ends: 46 [2021-11-07 07:47:30,676 INFO L226 Difference]: Without dead ends: 43 [2021-11-07 07:47:30,677 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 07:47:30,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2021-11-07 07:47:30,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 31. [2021-11-07 07:47:30,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 16 states have (on average 1.4375) internal successors, (23), 22 states have internal predecessors, (23), 5 states have call successors, (5), 4 states have call predecessors, (5), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2021-11-07 07:47:30,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 32 transitions. [2021-11-07 07:47:30,690 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 32 transitions. Word has length 16 [2021-11-07 07:47:30,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:47:30,690 INFO L470 AbstractCegarLoop]: Abstraction has 31 states and 32 transitions. [2021-11-07 07:47:30,691 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-11-07 07:47:30,691 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 32 transitions. [2021-11-07 07:47:30,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-11-07 07:47:30,694 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:47:30,694 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 07:47:30,709 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62e129be-4727-4f09-a9c6-114dc1736f2d/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-07 07:47:30,904 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62e129be-4727-4f09-a9c6-114dc1736f2d/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 [2021-11-07 07:47:30,905 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting entry_pointErr0ASSERT_VIOLATIONMEMORY_FREE === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 73 more)] === [2021-11-07 07:47:30,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:47:30,905 INFO L85 PathProgramCache]: Analyzing trace with hash -2034469669, now seen corresponding path program 1 times [2021-11-07 07:47:30,906 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-07 07:47:30,906 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [490708813] [2021-11-07 07:47:30,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:47:30,906 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 07:47:30,906 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62e129be-4727-4f09-a9c6-114dc1736f2d/bin/uautomizer-AkOaLMaTGY/mathsat [2021-11-07 07:47:30,907 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62e129be-4727-4f09-a9c6-114dc1736f2d/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 07:47:30,943 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62e129be-4727-4f09-a9c6-114dc1736f2d/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-07 07:47:31,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:47:31,077 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-07 07:47:31,078 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 07:47:31,149 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-07 07:47:31,149 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 07:47:31,234 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-07 07:47:31,234 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-07 07:47:31,235 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [490708813] [2021-11-07 07:47:31,235 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [490708813] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 07:47:31,235 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 07:47:31,235 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-07 07:47:31,235 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1479996234] [2021-11-07 07:47:31,236 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 07:47:31,236 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-07 07:47:31,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 07:47:31,237 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-07 07:47:31,238 INFO L87 Difference]: Start difference. First operand 31 states and 32 transitions. Second operand has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2021-11-07 07:47:31,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:47:31,252 INFO L93 Difference]: Finished difference Result 30 states and 31 transitions. [2021-11-07 07:47:31,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 07:47:31,253 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 20 [2021-11-07 07:47:31,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:47:31,255 INFO L225 Difference]: With dead ends: 30 [2021-11-07 07:47:31,255 INFO L226 Difference]: Without dead ends: 30 [2021-11-07 07:47:31,255 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-07 07:47:31,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2021-11-07 07:47:31,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2021-11-07 07:47:31,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 16 states have (on average 1.375) internal successors, (22), 21 states have internal predecessors, (22), 5 states have call successors, (5), 4 states have call predecessors, (5), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2021-11-07 07:47:31,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 31 transitions. [2021-11-07 07:47:31,265 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 31 transitions. Word has length 20 [2021-11-07 07:47:31,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:47:31,265 INFO L470 AbstractCegarLoop]: Abstraction has 30 states and 31 transitions. [2021-11-07 07:47:31,266 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2021-11-07 07:47:31,266 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 31 transitions. [2021-11-07 07:47:31,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-11-07 07:47:31,268 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:47:31,268 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 07:47:31,282 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62e129be-4727-4f09-a9c6-114dc1736f2d/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-07 07:47:31,479 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62e129be-4727-4f09-a9c6-114dc1736f2d/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 [2021-11-07 07:47:31,480 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting entry_pointErr1ASSERT_VIOLATIONMEMORY_FREE === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 73 more)] === [2021-11-07 07:47:31,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:47:31,480 INFO L85 PathProgramCache]: Analyzing trace with hash 1355950095, now seen corresponding path program 1 times [2021-11-07 07:47:31,481 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-07 07:47:31,481 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [670700089] [2021-11-07 07:47:31,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:47:31,481 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 07:47:31,481 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62e129be-4727-4f09-a9c6-114dc1736f2d/bin/uautomizer-AkOaLMaTGY/mathsat [2021-11-07 07:47:31,484 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62e129be-4727-4f09-a9c6-114dc1736f2d/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 07:47:31,517 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62e129be-4727-4f09-a9c6-114dc1736f2d/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-07 07:47:31,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:47:31,685 INFO L263 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-07 07:47:31,687 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 07:47:31,886 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-07 07:47:31,886 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [670700089] [2021-11-07 07:47:31,887 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Shadow problem: [|ldv_malloc_#res.base|] [2021-11-07 07:47:31,887 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2142222531] [2021-11-07 07:47:31,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:47:31,887 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-07 07:47:31,888 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62e129be-4727-4f09-a9c6-114dc1736f2d/bin/uautomizer-AkOaLMaTGY/cvc4 [2021-11-07 07:47:31,892 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62e129be-4727-4f09-a9c6-114dc1736f2d/bin/uautomizer-AkOaLMaTGY/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-07 07:47:31,912 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62e129be-4727-4f09-a9c6-114dc1736f2d/bin/uautomizer-AkOaLMaTGY/cvc4 --incremental --print-success --lang smt (6)] Waiting until timeout for monitored process [2021-11-07 07:47:32,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:47:32,162 INFO L263 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-07 07:47:32,164 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 07:47:32,274 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-07 07:47:32,274 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 07:47:32,358 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-07 07:47:32,358 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [2142222531] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 07:47:32,358 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 07:47:32,358 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-07 07:47:32,359 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1739429579] [2021-11-07 07:47:32,359 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 07:47:32,359 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-07 07:47:32,360 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 07:47:32,360 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-11-07 07:47:32,360 INFO L87 Difference]: Start difference. First operand 30 states and 31 transitions. Second operand has 5 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2021-11-07 07:47:32,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:47:32,418 INFO L93 Difference]: Finished difference Result 35 states and 37 transitions. [2021-11-07 07:47:32,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 07:47:32,419 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 21 [2021-11-07 07:47:32,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:47:32,420 INFO L225 Difference]: With dead ends: 35 [2021-11-07 07:47:32,420 INFO L226 Difference]: Without dead ends: 35 [2021-11-07 07:47:32,420 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-11-07 07:47:32,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2021-11-07 07:47:32,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2021-11-07 07:47:32,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 20 states have (on average 1.3) internal successors, (26), 25 states have internal predecessors, (26), 5 states have call successors, (5), 4 states have call predecessors, (5), 4 states have return successors, (6), 5 states have call predecessors, (6), 4 states have call successors, (6) [2021-11-07 07:47:32,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 37 transitions. [2021-11-07 07:47:32,425 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 37 transitions. Word has length 21 [2021-11-07 07:47:32,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:47:32,425 INFO L470 AbstractCegarLoop]: Abstraction has 35 states and 37 transitions. [2021-11-07 07:47:32,425 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2021-11-07 07:47:32,425 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 37 transitions. [2021-11-07 07:47:32,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-11-07 07:47:32,426 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:47:32,426 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 07:47:32,435 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62e129be-4727-4f09-a9c6-114dc1736f2d/bin/uautomizer-AkOaLMaTGY/cvc4 --incremental --print-success --lang smt (6)] Forceful destruction successful, exit code 0 [2021-11-07 07:47:32,633 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62e129be-4727-4f09-a9c6-114dc1736f2d/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 (5)] Ended with exit code 0 [2021-11-07 07:47:32,827 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62e129be-4727-4f09-a9c6-114dc1736f2d/bin/uautomizer-AkOaLMaTGY/cvc4 --incremental --print-success --lang smt,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62e129be-4727-4f09-a9c6-114dc1736f2d/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 [2021-11-07 07:47:32,827 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting entry_pointErr1ASSERT_VIOLATIONMEMORY_FREE === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 73 more)] === [2021-11-07 07:47:32,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:47:32,827 INFO L85 PathProgramCache]: Analyzing trace with hash 1384579246, now seen corresponding path program 1 times [2021-11-07 07:47:32,828 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-07 07:47:32,828 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1312257568] [2021-11-07 07:47:32,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:47:32,828 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 07:47:32,828 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62e129be-4727-4f09-a9c6-114dc1736f2d/bin/uautomizer-AkOaLMaTGY/mathsat [2021-11-07 07:47:32,829 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62e129be-4727-4f09-a9c6-114dc1736f2d/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 07:47:32,831 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62e129be-4727-4f09-a9c6-114dc1736f2d/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-07 07:47:33,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:47:33,008 INFO L263 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-07 07:47:33,010 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 07:47:33,143 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-07 07:47:33,143 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 07:47:33,275 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-07 07:47:33,275 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-07 07:47:33,275 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1312257568] [2021-11-07 07:47:33,275 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1312257568] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 07:47:33,275 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 07:47:33,276 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-11-07 07:47:33,276 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1943484417] [2021-11-07 07:47:33,276 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-07 07:47:33,276 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-07 07:47:33,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-07 07:47:33,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2021-11-07 07:47:33,277 INFO L87 Difference]: Start difference. First operand 35 states and 37 transitions. Second operand has 9 states, 8 states have (on average 2.5) internal successors, (20), 7 states have internal predecessors, (20), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) [2021-11-07 07:47:33,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:47:33,465 INFO L93 Difference]: Finished difference Result 43 states and 45 transitions. [2021-11-07 07:47:33,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-07 07:47:33,465 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 2.5) internal successors, (20), 7 states have internal predecessors, (20), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) Word has length 21 [2021-11-07 07:47:33,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:47:33,466 INFO L225 Difference]: With dead ends: 43 [2021-11-07 07:47:33,466 INFO L226 Difference]: Without dead ends: 43 [2021-11-07 07:47:33,467 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2021-11-07 07:47:33,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2021-11-07 07:47:33,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 35. [2021-11-07 07:47:33,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 21 states have (on average 1.2380952380952381) internal successors, (26), 25 states have internal predecessors, (26), 5 states have call successors, (5), 4 states have call predecessors, (5), 4 states have return successors, (6), 5 states have call predecessors, (6), 4 states have call successors, (6) [2021-11-07 07:47:33,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 37 transitions. [2021-11-07 07:47:33,471 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 37 transitions. Word has length 21 [2021-11-07 07:47:33,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:47:33,472 INFO L470 AbstractCegarLoop]: Abstraction has 35 states and 37 transitions. [2021-11-07 07:47:33,472 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 2.5) internal successors, (20), 7 states have internal predecessors, (20), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) [2021-11-07 07:47:33,472 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 37 transitions. [2021-11-07 07:47:33,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-11-07 07:47:33,473 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:47:33,473 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 07:47:33,487 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62e129be-4727-4f09-a9c6-114dc1736f2d/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 (7)] Ended with exit code 0 [2021-11-07 07:47:33,681 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62e129be-4727-4f09-a9c6-114dc1736f2d/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 [2021-11-07 07:47:33,682 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 73 more)] === [2021-11-07 07:47:33,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:47:33,682 INFO L85 PathProgramCache]: Analyzing trace with hash -915219619, now seen corresponding path program 1 times [2021-11-07 07:47:33,682 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-07 07:47:33,683 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1789978286] [2021-11-07 07:47:33,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:47:33,683 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 07:47:33,683 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62e129be-4727-4f09-a9c6-114dc1736f2d/bin/uautomizer-AkOaLMaTGY/mathsat [2021-11-07 07:47:33,684 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62e129be-4727-4f09-a9c6-114dc1736f2d/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 07:47:33,685 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62e129be-4727-4f09-a9c6-114dc1736f2d/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-07 07:47:33,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:47:33,877 INFO L263 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-07 07:47:33,878 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 07:47:33,935 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-07 07:47:33,970 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-07 07:47:33,970 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 07:47:34,064 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-07 07:47:34,065 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-07 07:47:34,065 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1789978286] [2021-11-07 07:47:34,065 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1789978286] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 07:47:34,065 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 07:47:34,065 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-07 07:47:34,066 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1651116407] [2021-11-07 07:47:34,066 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 07:47:34,066 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-07 07:47:34,067 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 07:47:34,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-07 07:47:34,067 INFO L87 Difference]: Start difference. First operand 35 states and 37 transitions. Second operand has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2021-11-07 07:47:34,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:47:34,111 INFO L93 Difference]: Finished difference Result 34 states and 36 transitions. [2021-11-07 07:47:34,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 07:47:34,112 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 22 [2021-11-07 07:47:34,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:47:34,113 INFO L225 Difference]: With dead ends: 34 [2021-11-07 07:47:34,113 INFO L226 Difference]: Without dead ends: 34 [2021-11-07 07:47:34,113 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 38 SyntacticMatches, 2 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-07 07:47:34,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2021-11-07 07:47:34,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 28. [2021-11-07 07:47:34,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 16 states have (on average 1.25) internal successors, (20), 19 states have internal predecessors, (20), 5 states have call successors, (5), 4 states have call predecessors, (5), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2021-11-07 07:47:34,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 29 transitions. [2021-11-07 07:47:34,117 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 29 transitions. Word has length 22 [2021-11-07 07:47:34,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:47:34,117 INFO L470 AbstractCegarLoop]: Abstraction has 28 states and 29 transitions. [2021-11-07 07:47:34,117 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2021-11-07 07:47:34,118 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 29 transitions. [2021-11-07 07:47:34,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-11-07 07:47:34,118 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:47:34,118 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 07:47:34,133 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62e129be-4727-4f09-a9c6-114dc1736f2d/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-07 07:47:34,332 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62e129be-4727-4f09-a9c6-114dc1736f2d/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 [2021-11-07 07:47:34,332 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 73 more)] === [2021-11-07 07:47:34,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:47:34,333 INFO L85 PathProgramCache]: Analyzing trace with hash 1692963281, now seen corresponding path program 1 times [2021-11-07 07:47:34,333 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-07 07:47:34,333 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [106137883] [2021-11-07 07:47:34,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:47:34,334 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 07:47:34,334 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62e129be-4727-4f09-a9c6-114dc1736f2d/bin/uautomizer-AkOaLMaTGY/mathsat [2021-11-07 07:47:34,335 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62e129be-4727-4f09-a9c6-114dc1736f2d/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 07:47:34,344 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62e129be-4727-4f09-a9c6-114dc1736f2d/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-07 07:47:34,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:47:34,514 INFO L263 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-07 07:47:34,515 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 07:47:34,594 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-07 07:47:34,594 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 07:47:34,669 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-07 07:47:34,669 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-07 07:47:34,671 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [106137883] [2021-11-07 07:47:34,671 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [106137883] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-07 07:47:34,672 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-07 07:47:34,672 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2021-11-07 07:47:34,672 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [186557704] [2021-11-07 07:47:34,674 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 07:47:34,674 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-07 07:47:34,674 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 07:47:34,675 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-07 07:47:34,675 INFO L87 Difference]: Start difference. First operand 28 states and 29 transitions. Second operand has 5 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2021-11-07 07:47:34,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:47:34,689 INFO L93 Difference]: Finished difference Result 27 states and 28 transitions. [2021-11-07 07:47:34,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 07:47:34,690 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) Word has length 23 [2021-11-07 07:47:34,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:47:34,691 INFO L225 Difference]: With dead ends: 27 [2021-11-07 07:47:34,691 INFO L226 Difference]: Without dead ends: 27 [2021-11-07 07:47:34,692 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-07 07:47:34,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2021-11-07 07:47:34,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2021-11-07 07:47:34,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 16 states have (on average 1.1875) internal successors, (19), 18 states have internal predecessors, (19), 5 states have call successors, (5), 4 states have call predecessors, (5), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2021-11-07 07:47:34,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 28 transitions. [2021-11-07 07:47:34,699 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 28 transitions. Word has length 23 [2021-11-07 07:47:34,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:47:34,702 INFO L470 AbstractCegarLoop]: Abstraction has 27 states and 28 transitions. [2021-11-07 07:47:34,702 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2021-11-07 07:47:34,702 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 28 transitions. [2021-11-07 07:47:34,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-11-07 07:47:34,703 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:47:34,703 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 07:47:34,714 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62e129be-4727-4f09-a9c6-114dc1736f2d/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 (9)] Ended with exit code 0 [2021-11-07 07:47:34,914 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62e129be-4727-4f09-a9c6-114dc1736f2d/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 [2021-11-07 07:47:34,917 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 73 more)] === [2021-11-07 07:47:34,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:47:34,917 INFO L85 PathProgramCache]: Analyzing trace with hash 942254559, now seen corresponding path program 1 times [2021-11-07 07:47:34,918 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-07 07:47:34,918 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1731486681] [2021-11-07 07:47:34,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:47:34,918 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 07:47:34,918 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62e129be-4727-4f09-a9c6-114dc1736f2d/bin/uautomizer-AkOaLMaTGY/mathsat [2021-11-07 07:47:34,919 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62e129be-4727-4f09-a9c6-114dc1736f2d/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 07:47:34,926 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62e129be-4727-4f09-a9c6-114dc1736f2d/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-11-07 07:47:35,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:47:35,114 INFO L263 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-07 07:47:35,115 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 07:47:35,405 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:47:35,405 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 07:47:35,562 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-07 07:47:35,563 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-07 07:47:35,563 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1731486681] [2021-11-07 07:47:35,563 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1731486681] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-07 07:47:35,563 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-07 07:47:35,563 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 4] total 9 [2021-11-07 07:47:35,563 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1135440952] [2021-11-07 07:47:35,563 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-07 07:47:35,564 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-07 07:47:35,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-07 07:47:35,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2021-11-07 07:47:35,564 INFO L87 Difference]: Start difference. First operand 27 states and 28 transitions. Second operand has 10 states, 9 states have (on average 3.4444444444444446) internal successors, (31), 8 states have internal predecessors, (31), 4 states have call successors, (9), 3 states have call predecessors, (9), 5 states have return successors, (6), 6 states have call predecessors, (6), 4 states have call successors, (6) [2021-11-07 07:47:35,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:47:35,803 INFO L93 Difference]: Finished difference Result 55 states and 60 transitions. [2021-11-07 07:47:35,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-07 07:47:35,804 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.4444444444444446) internal successors, (31), 8 states have internal predecessors, (31), 4 states have call successors, (9), 3 states have call predecessors, (9), 5 states have return successors, (6), 6 states have call predecessors, (6), 4 states have call successors, (6) Word has length 24 [2021-11-07 07:47:35,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:47:35,804 INFO L225 Difference]: With dead ends: 55 [2021-11-07 07:47:35,805 INFO L226 Difference]: Without dead ends: 55 [2021-11-07 07:47:35,805 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 39 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2021-11-07 07:47:35,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2021-11-07 07:47:35,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 35. [2021-11-07 07:47:35,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 22 states have (on average 1.1363636363636365) internal successors, (25), 24 states have internal predecessors, (25), 6 states have call successors, (6), 5 states have call predecessors, (6), 5 states have return successors, (8), 5 states have call predecessors, (8), 5 states have call successors, (8) [2021-11-07 07:47:35,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 39 transitions. [2021-11-07 07:47:35,810 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 39 transitions. Word has length 24 [2021-11-07 07:47:35,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:47:35,810 INFO L470 AbstractCegarLoop]: Abstraction has 35 states and 39 transitions. [2021-11-07 07:47:35,811 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.4444444444444446) internal successors, (31), 8 states have internal predecessors, (31), 4 states have call successors, (9), 3 states have call predecessors, (9), 5 states have return successors, (6), 6 states have call predecessors, (6), 4 states have call successors, (6) [2021-11-07 07:47:35,811 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 39 transitions. [2021-11-07 07:47:35,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-11-07 07:47:35,812 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:47:35,812 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 07:47:35,819 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62e129be-4727-4f09-a9c6-114dc1736f2d/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-11-07 07:47:36,012 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62e129be-4727-4f09-a9c6-114dc1736f2d/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 [2021-11-07 07:47:36,012 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting entry_pointErr5ASSERT_VIOLATIONMEMORY_FREE === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 73 more)] === [2021-11-07 07:47:36,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:47:36,013 INFO L85 PathProgramCache]: Analyzing trace with hash -854879341, now seen corresponding path program 1 times [2021-11-07 07:47:36,013 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-07 07:47:36,013 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1189575389] [2021-11-07 07:47:36,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:47:36,014 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 07:47:36,014 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62e129be-4727-4f09-a9c6-114dc1736f2d/bin/uautomizer-AkOaLMaTGY/mathsat [2021-11-07 07:47:36,014 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62e129be-4727-4f09-a9c6-114dc1736f2d/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 07:47:36,025 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62e129be-4727-4f09-a9c6-114dc1736f2d/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-11-07 07:47:36,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:47:36,269 INFO L263 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-07 07:47:36,271 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 07:47:36,294 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-07 07:47:36,410 INFO L354 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2021-11-07 07:47:36,411 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 26 treesize of output 33 [2021-11-07 07:47:36,582 INFO L354 Elim1Store]: treesize reduction 20, result has 28.6 percent of original size [2021-11-07 07:47:36,582 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 41 treesize of output 44 [2021-11-07 07:47:36,736 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:47:36,736 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 07:47:43,117 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:47:43,118 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-07 07:47:43,118 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1189575389] [2021-11-07 07:47:43,118 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1189575389] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-07 07:47:43,118 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-11-07 07:47:43,118 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [8] total 13 [2021-11-07 07:47:43,118 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [648107701] [2021-11-07 07:47:43,119 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-07 07:47:43,119 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-07 07:47:43,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-07 07:47:43,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=142, Unknown=3, NotChecked=0, Total=182 [2021-11-07 07:47:43,120 INFO L87 Difference]: Start difference. First operand 35 states and 39 transitions. Second operand has 10 states, 9 states have (on average 1.8888888888888888) internal successors, (17), 8 states have internal predecessors, (17), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2021-11-07 07:47:45,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:47:45,415 INFO L93 Difference]: Finished difference Result 50 states and 54 transitions. [2021-11-07 07:47:45,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-07 07:47:45,416 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 1.8888888888888888) internal successors, (17), 8 states have internal predecessors, (17), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) Word has length 25 [2021-11-07 07:47:45,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:47:45,417 INFO L225 Difference]: With dead ends: 50 [2021-11-07 07:47:45,417 INFO L226 Difference]: Without dead ends: 50 [2021-11-07 07:47:45,417 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 33 SyntacticMatches, 4 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 6.2s TimeCoverageRelationStatistics Valid=37, Invalid=142, Unknown=3, NotChecked=0, Total=182 [2021-11-07 07:47:45,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2021-11-07 07:47:45,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 42. [2021-11-07 07:47:45,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 29 states have (on average 1.103448275862069) internal successors, (32), 30 states have internal predecessors, (32), 6 states have call successors, (6), 5 states have call predecessors, (6), 5 states have return successors, (8), 6 states have call predecessors, (8), 5 states have call successors, (8) [2021-11-07 07:47:45,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 46 transitions. [2021-11-07 07:47:45,421 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 46 transitions. Word has length 25 [2021-11-07 07:47:45,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:47:45,422 INFO L470 AbstractCegarLoop]: Abstraction has 42 states and 46 transitions. [2021-11-07 07:47:45,422 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 1.8888888888888888) internal successors, (17), 8 states have internal predecessors, (17), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2021-11-07 07:47:45,422 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 46 transitions. [2021-11-07 07:47:45,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-11-07 07:47:45,423 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:47:45,423 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 07:47:45,440 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62e129be-4727-4f09-a9c6-114dc1736f2d/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-11-07 07:47:45,623 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62e129be-4727-4f09-a9c6-114dc1736f2d/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 [2021-11-07 07:47:45,624 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting entry_pointErr5ASSERT_VIOLATIONMEMORY_FREE === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 73 more)] === [2021-11-07 07:47:45,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:47:45,624 INFO L85 PathProgramCache]: Analyzing trace with hash -1051392846, now seen corresponding path program 1 times [2021-11-07 07:47:45,624 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-07 07:47:45,624 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [782482923] [2021-11-07 07:47:45,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:47:45,625 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 07:47:45,625 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62e129be-4727-4f09-a9c6-114dc1736f2d/bin/uautomizer-AkOaLMaTGY/mathsat [2021-11-07 07:47:45,628 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62e129be-4727-4f09-a9c6-114dc1736f2d/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 07:47:45,633 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62e129be-4727-4f09-a9c6-114dc1736f2d/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-11-07 07:47:45,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:47:45,852 INFO L263 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-07 07:47:45,853 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 07:47:45,891 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-07 07:47:46,096 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2021-11-07 07:47:46,136 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:47:46,136 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 07:47:46,464 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:47:46,465 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-07 07:47:46,465 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [782482923] [2021-11-07 07:47:46,466 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [782482923] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-07 07:47:46,466 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-07 07:47:46,466 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 14 [2021-11-07 07:47:46,466 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [698780873] [2021-11-07 07:47:46,467 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-11-07 07:47:46,467 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-07 07:47:46,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-11-07 07:47:46,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=167, Unknown=0, NotChecked=0, Total=210 [2021-11-07 07:47:46,469 INFO L87 Difference]: Start difference. First operand 42 states and 46 transitions. Second operand has 15 states, 14 states have (on average 1.9285714285714286) internal successors, (27), 12 states have internal predecessors, (27), 2 states have call successors, (6), 3 states have call predecessors, (6), 4 states have return successors, (4), 4 states have call predecessors, (4), 2 states have call successors, (4) [2021-11-07 07:47:47,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:47:47,115 INFO L93 Difference]: Finished difference Result 53 states and 57 transitions. [2021-11-07 07:47:47,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-07 07:47:47,116 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 1.9285714285714286) internal successors, (27), 12 states have internal predecessors, (27), 2 states have call successors, (6), 3 states have call predecessors, (6), 4 states have return successors, (4), 4 states have call predecessors, (4), 2 states have call successors, (4) Word has length 25 [2021-11-07 07:47:47,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:47:47,117 INFO L225 Difference]: With dead ends: 53 [2021-11-07 07:47:47,117 INFO L226 Difference]: Without dead ends: 53 [2021-11-07 07:47:47,118 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 34 SyntacticMatches, 2 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=109, Invalid=443, Unknown=0, NotChecked=0, Total=552 [2021-11-07 07:47:47,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2021-11-07 07:47:47,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 42. [2021-11-07 07:47:47,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 29 states have (on average 1.103448275862069) internal successors, (32), 30 states have internal predecessors, (32), 6 states have call successors, (6), 5 states have call predecessors, (6), 5 states have return successors, (8), 6 states have call predecessors, (8), 5 states have call successors, (8) [2021-11-07 07:47:47,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 46 transitions. [2021-11-07 07:47:47,122 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 46 transitions. Word has length 25 [2021-11-07 07:47:47,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:47:47,123 INFO L470 AbstractCegarLoop]: Abstraction has 42 states and 46 transitions. [2021-11-07 07:47:47,123 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 1.9285714285714286) internal successors, (27), 12 states have internal predecessors, (27), 2 states have call successors, (6), 3 states have call predecessors, (6), 4 states have return successors, (4), 4 states have call predecessors, (4), 2 states have call successors, (4) [2021-11-07 07:47:47,123 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 46 transitions. [2021-11-07 07:47:47,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-11-07 07:47:47,124 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:47:47,124 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 07:47:47,139 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62e129be-4727-4f09-a9c6-114dc1736f2d/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2021-11-07 07:47:47,335 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62e129be-4727-4f09-a9c6-114dc1736f2d/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 [2021-11-07 07:47:47,336 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting entry_pointErr5ASSERT_VIOLATIONMEMORY_FREE === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 73 more)] === [2021-11-07 07:47:47,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:47:47,336 INFO L85 PathProgramCache]: Analyzing trace with hash 498430356, now seen corresponding path program 2 times [2021-11-07 07:47:47,336 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-07 07:47:47,336 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1086767208] [2021-11-07 07:47:47,337 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-07 07:47:47,337 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 07:47:47,337 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62e129be-4727-4f09-a9c6-114dc1736f2d/bin/uautomizer-AkOaLMaTGY/mathsat [2021-11-07 07:47:47,340 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62e129be-4727-4f09-a9c6-114dc1736f2d/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 07:47:47,352 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62e129be-4727-4f09-a9c6-114dc1736f2d/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2021-11-07 07:47:47,585 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-07 07:47:47,585 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-07 07:47:47,587 INFO L263 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-07 07:47:47,588 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 07:47:47,660 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-07 07:47:47,660 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 07:47:47,730 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-07 07:47:47,730 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-07 07:47:47,730 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1086767208] [2021-11-07 07:47:47,731 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1086767208] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-07 07:47:47,731 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-07 07:47:47,731 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2021-11-07 07:47:47,731 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [342420299] [2021-11-07 07:47:47,731 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 07:47:47,731 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-07 07:47:47,732 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 07:47:47,732 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-07 07:47:47,732 INFO L87 Difference]: Start difference. First operand 42 states and 46 transitions. Second operand has 5 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2021-11-07 07:47:47,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:47:47,756 INFO L93 Difference]: Finished difference Result 43 states and 47 transitions. [2021-11-07 07:47:47,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 07:47:47,756 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) Word has length 25 [2021-11-07 07:47:47,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:47:47,757 INFO L225 Difference]: With dead ends: 43 [2021-11-07 07:47:47,757 INFO L226 Difference]: Without dead ends: 43 [2021-11-07 07:47:47,758 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-07 07:47:47,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2021-11-07 07:47:47,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 34. [2021-11-07 07:47:47,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 22 states have (on average 1.0909090909090908) internal successors, (24), 23 states have internal predecessors, (24), 6 states have call successors, (6), 5 states have call predecessors, (6), 5 states have return successors, (8), 5 states have call predecessors, (8), 5 states have call successors, (8) [2021-11-07 07:47:47,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 38 transitions. [2021-11-07 07:47:47,762 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 38 transitions. Word has length 25 [2021-11-07 07:47:47,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:47:47,763 INFO L470 AbstractCegarLoop]: Abstraction has 34 states and 38 transitions. [2021-11-07 07:47:47,763 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2021-11-07 07:47:47,763 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 38 transitions. [2021-11-07 07:47:47,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-11-07 07:47:47,764 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:47:47,764 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 07:47:47,779 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62e129be-4727-4f09-a9c6-114dc1736f2d/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2021-11-07 07:47:47,975 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62e129be-4727-4f09-a9c6-114dc1736f2d/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 [2021-11-07 07:47:47,975 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting mainErr0ENSURES_VIOLATIONMEMORY_LEAK === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 73 more)] === [2021-11-07 07:47:47,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:47:47,976 INFO L85 PathProgramCache]: Analyzing trace with hash 1446021946, now seen corresponding path program 1 times [2021-11-07 07:47:47,976 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-07 07:47:47,976 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1853936138] [2021-11-07 07:47:47,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:47:47,976 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 07:47:47,977 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62e129be-4727-4f09-a9c6-114dc1736f2d/bin/uautomizer-AkOaLMaTGY/mathsat [2021-11-07 07:47:47,977 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62e129be-4727-4f09-a9c6-114dc1736f2d/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 07:47:47,989 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62e129be-4727-4f09-a9c6-114dc1736f2d/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2021-11-07 07:47:48,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:47:48,236 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 19 conjunts are in the unsatisfiable core [2021-11-07 07:47:48,238 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 07:47:52,725 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-07 07:47:52,725 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 07:47:57,053 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_old(#valid)_BEFORE_CALL_8| (Array (_ BitVec 32) (_ BitVec 1)))) (or (= |v_old(#valid)_BEFORE_CALL_8| |c_#valid|) (exists ((v_entry_point_~p~0.base_24 (_ BitVec 32)) (v_entry_point_~q~0.base_17 (_ BitVec 32))) (let ((.cse0 (store |c_old(#valid)| v_entry_point_~p~0.base_24 (_ bv1 1)))) (and (= (_ bv0 1) (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (select |c_old(#valid)| v_entry_point_~p~0.base_24))))))))) (not (= |v_old(#valid)_BEFORE_CALL_8| (store (store .cse0 v_entry_point_~q~0.base_17 (_ bv0 1)) v_entry_point_~p~0.base_24 (_ bv0 1)))) (= (_ bv0 1) (bvneg (bvneg (bvneg (bvneg (select .cse0 v_entry_point_~q~0.base_17))))))))))) is different from false [2021-11-07 07:47:57,225 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_old(#valid)_BEFORE_CALL_8| (Array (_ BitVec 32) (_ BitVec 1)))) (or (= |v_old(#valid)_BEFORE_CALL_8| (store |c_#valid| c_entry_point_~p~0.base (_ bv0 1))) (exists ((v_entry_point_~p~0.base_24 (_ BitVec 32)) (v_entry_point_~q~0.base_17 (_ BitVec 32))) (let ((.cse0 (store |c_old(#valid)| v_entry_point_~p~0.base_24 (_ bv1 1)))) (and (= (_ bv0 1) (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (select |c_old(#valid)| v_entry_point_~p~0.base_24))))))))) (not (= |v_old(#valid)_BEFORE_CALL_8| (store (store .cse0 v_entry_point_~q~0.base_17 (_ bv0 1)) v_entry_point_~p~0.base_24 (_ bv0 1)))) (= (_ bv0 1) (bvneg (bvneg (bvneg (bvneg (select .cse0 v_entry_point_~q~0.base_17))))))))))) is different from false [2021-11-07 07:47:57,497 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_old(#valid)_BEFORE_CALL_8| (Array (_ BitVec 32) (_ BitVec 1)))) (or (exists ((v_entry_point_~p~0.base_24 (_ BitVec 32)) (v_entry_point_~q~0.base_17 (_ BitVec 32))) (let ((.cse0 (store |c_old(#valid)| v_entry_point_~p~0.base_24 (_ bv1 1)))) (and (= (_ bv0 1) (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (select |c_old(#valid)| v_entry_point_~p~0.base_24))))))))) (not (= |v_old(#valid)_BEFORE_CALL_8| (store (store .cse0 v_entry_point_~q~0.base_17 (_ bv0 1)) v_entry_point_~p~0.base_24 (_ bv0 1)))) (= (_ bv0 1) (bvneg (bvneg (bvneg (bvneg (select .cse0 v_entry_point_~q~0.base_17))))))))) (= |v_old(#valid)_BEFORE_CALL_8| (store (store |c_#valid| c_entry_point_~q~0.base (_ bv0 1)) c_entry_point_~p~0.base (_ bv0 1))))) is different from false [2021-11-07 07:47:57,779 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_old(#valid)_BEFORE_CALL_8| (Array (_ BitVec 32) (_ BitVec 1)))) (or (= |v_old(#valid)_BEFORE_CALL_8| (store (store |c_#valid| |c_entry_point_#t~ret39.base| (_ bv0 1)) c_entry_point_~p~0.base (_ bv0 1))) (exists ((v_entry_point_~p~0.base_24 (_ BitVec 32)) (v_entry_point_~q~0.base_17 (_ BitVec 32))) (let ((.cse0 (store |c_old(#valid)| v_entry_point_~p~0.base_24 (_ bv1 1)))) (and (= (_ bv0 1) (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (select |c_old(#valid)| v_entry_point_~p~0.base_24))))))))) (not (= |v_old(#valid)_BEFORE_CALL_8| (store (store .cse0 v_entry_point_~q~0.base_17 (_ bv0 1)) v_entry_point_~p~0.base_24 (_ bv0 1)))) (= (_ bv0 1) (bvneg (bvneg (bvneg (bvneg (select .cse0 v_entry_point_~q~0.base_17))))))))))) is different from false [2021-11-07 07:47:58,083 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_old(#valid)_BEFORE_CALL_8| (Array (_ BitVec 32) (_ BitVec 1))) (|v_entry_point_#t~ret39.base_45| (_ BitVec 32))) (or (= |v_old(#valid)_BEFORE_CALL_8| (store (store |c_#valid| |v_entry_point_#t~ret39.base_45| (_ bv0 1)) c_entry_point_~p~0.base (_ bv0 1))) (exists ((v_entry_point_~p~0.base_24 (_ BitVec 32)) (v_entry_point_~q~0.base_17 (_ BitVec 32))) (let ((.cse0 (store |c_old(#valid)| v_entry_point_~p~0.base_24 (_ bv1 1)))) (and (= (_ bv0 1) (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (select |c_old(#valid)| v_entry_point_~p~0.base_24))))))))) (not (= |v_old(#valid)_BEFORE_CALL_8| (store (store .cse0 v_entry_point_~q~0.base_17 (_ bv0 1)) v_entry_point_~p~0.base_24 (_ bv0 1)))) (= (_ bv0 1) (bvneg (bvneg (bvneg (bvneg (select .cse0 v_entry_point_~q~0.base_17))))))))) (not (= (_ bv0 1) (bvneg (select |c_#valid| |v_entry_point_#t~ret39.base_45|)))))) is different from false [2021-11-07 07:47:58,093 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-07 07:47:58,093 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1853936138] [2021-11-07 07:47:58,093 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Shadow problem: [|v_old(#valid)_BEFORE_CALL_8|] [2021-11-07 07:47:58,093 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1746370140] [2021-11-07 07:47:58,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:47:58,093 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-07 07:47:58,094 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62e129be-4727-4f09-a9c6-114dc1736f2d/bin/uautomizer-AkOaLMaTGY/cvc4 [2021-11-07 07:47:58,100 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62e129be-4727-4f09-a9c6-114dc1736f2d/bin/uautomizer-AkOaLMaTGY/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-07 07:47:58,101 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62e129be-4727-4f09-a9c6-114dc1736f2d/bin/uautomizer-AkOaLMaTGY/cvc4 --incremental --print-success --lang smt (15)] Waiting until timeout for monitored process [2021-11-07 07:47:58,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:47:58,512 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 24 conjunts are in the unsatisfiable core [2021-11-07 07:47:58,513 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 07:47:58,552 INFO L354 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2021-11-07 07:47:58,553 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 28 [2021-11-07 07:48:07,734 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-07 07:48:07,734 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 07:48:14,932 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_old(#valid)_BEFORE_CALL_13| (Array (_ BitVec 32) (_ BitVec 1)))) (or (exists ((v_entry_point_~q~0.base_21 (_ BitVec 32)) (v_entry_point_~p~0.base_27 (_ BitVec 32))) (let ((.cse0 (store |c_old(#valid)| v_entry_point_~p~0.base_27 (_ bv1 1)))) (and (= (_ bv0 1) (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (select |c_old(#valid)| v_entry_point_~p~0.base_27))))))))) (not (= v_entry_point_~p~0.base_27 (_ bv0 32))) (not (= |v_old(#valid)_BEFORE_CALL_13| (store (store .cse0 v_entry_point_~q~0.base_21 (_ bv0 1)) v_entry_point_~p~0.base_27 (_ bv0 1)))) (= (_ bv0 1) (bvneg (bvneg (bvneg (select .cse0 v_entry_point_~q~0.base_21)))))))) (= |v_old(#valid)_BEFORE_CALL_13| |c_#valid|))) is different from false [2021-11-07 07:49:18,891 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Shadow problem: [|v_old(#valid)_BEFORE_CALL_13|] [2021-11-07 07:49:18,891 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1918408810] [2021-11-07 07:49:18,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:49:18,892 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 07:49:18,892 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62e129be-4727-4f09-a9c6-114dc1736f2d/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:49:18,893 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62e129be-4727-4f09-a9c6-114dc1736f2d/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 07:49:18,894 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62e129be-4727-4f09-a9c6-114dc1736f2d/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2021-11-07 07:49:19,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:49:19,420 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 18 conjunts are in the unsatisfiable core [2021-11-07 07:49:19,422 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 07:49:21,863 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-07 07:49:21,863 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 07:49:22,391 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_old(#valid)_BEFORE_CALL_18| (Array (_ BitVec 32) (_ BitVec 1)))) (or (exists ((v_entry_point_~p~0.base_24 (_ BitVec 32)) (v_entry_point_~q~0.base_17 (_ BitVec 32))) (let ((.cse0 (store |c_old(#valid)| v_entry_point_~p~0.base_24 (_ bv1 1)))) (and (= (_ bv0 1) (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (select |c_old(#valid)| v_entry_point_~p~0.base_24))))))))) (not (= (store (store .cse0 v_entry_point_~q~0.base_17 (_ bv0 1)) v_entry_point_~p~0.base_24 (_ bv0 1)) |v_old(#valid)_BEFORE_CALL_18|)) (= (_ bv0 1) (bvneg (bvneg (bvneg (bvneg (select .cse0 v_entry_point_~q~0.base_17))))))))) (= |v_old(#valid)_BEFORE_CALL_18| |c_#valid|))) is different from false [2021-11-07 07:49:22,579 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_old(#valid)_BEFORE_CALL_18| (Array (_ BitVec 32) (_ BitVec 1)))) (or (exists ((v_entry_point_~p~0.base_24 (_ BitVec 32)) (v_entry_point_~q~0.base_17 (_ BitVec 32))) (let ((.cse0 (store |c_old(#valid)| v_entry_point_~p~0.base_24 (_ bv1 1)))) (and (= (_ bv0 1) (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (select |c_old(#valid)| v_entry_point_~p~0.base_24))))))))) (not (= (store (store .cse0 v_entry_point_~q~0.base_17 (_ bv0 1)) v_entry_point_~p~0.base_24 (_ bv0 1)) |v_old(#valid)_BEFORE_CALL_18|)) (= (_ bv0 1) (bvneg (bvneg (bvneg (bvneg (select .cse0 v_entry_point_~q~0.base_17))))))))) (= |v_old(#valid)_BEFORE_CALL_18| (store |c_#valid| c_entry_point_~p~0.base (_ bv0 1))))) is different from false [2021-11-07 07:49:22,877 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_old(#valid)_BEFORE_CALL_18| (Array (_ BitVec 32) (_ BitVec 1)))) (or (= |v_old(#valid)_BEFORE_CALL_18| (store (store |c_#valid| c_entry_point_~q~0.base (_ bv0 1)) c_entry_point_~p~0.base (_ bv0 1))) (exists ((v_entry_point_~p~0.base_24 (_ BitVec 32)) (v_entry_point_~q~0.base_17 (_ BitVec 32))) (let ((.cse0 (store |c_old(#valid)| v_entry_point_~p~0.base_24 (_ bv1 1)))) (and (= (_ bv0 1) (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (select |c_old(#valid)| v_entry_point_~p~0.base_24))))))))) (not (= (store (store .cse0 v_entry_point_~q~0.base_17 (_ bv0 1)) v_entry_point_~p~0.base_24 (_ bv0 1)) |v_old(#valid)_BEFORE_CALL_18|)) (= (_ bv0 1) (bvneg (bvneg (bvneg (bvneg (select .cse0 v_entry_point_~q~0.base_17))))))))))) is different from false [2021-11-07 07:49:23,174 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_old(#valid)_BEFORE_CALL_18| (Array (_ BitVec 32) (_ BitVec 1)))) (or (= |v_old(#valid)_BEFORE_CALL_18| (store (store |c_#valid| |c_entry_point_#t~ret39.base| (_ bv0 1)) c_entry_point_~p~0.base (_ bv0 1))) (exists ((v_entry_point_~p~0.base_24 (_ BitVec 32)) (v_entry_point_~q~0.base_17 (_ BitVec 32))) (let ((.cse0 (store |c_old(#valid)| v_entry_point_~p~0.base_24 (_ bv1 1)))) (and (= (_ bv0 1) (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (select |c_old(#valid)| v_entry_point_~p~0.base_24))))))))) (not (= (store (store .cse0 v_entry_point_~q~0.base_17 (_ bv0 1)) v_entry_point_~p~0.base_24 (_ bv0 1)) |v_old(#valid)_BEFORE_CALL_18|)) (= (_ bv0 1) (bvneg (bvneg (bvneg (bvneg (select .cse0 v_entry_point_~q~0.base_17))))))))))) is different from false [2021-11-07 07:49:23,427 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_old(#valid)_BEFORE_CALL_18| (Array (_ BitVec 32) (_ BitVec 1))) (|v_entry_point_#t~ret39.base_63| (_ BitVec 32))) (or (= (store (store |c_#valid| |v_entry_point_#t~ret39.base_63| (_ bv0 1)) c_entry_point_~p~0.base (_ bv0 1)) |v_old(#valid)_BEFORE_CALL_18|) (exists ((v_entry_point_~p~0.base_24 (_ BitVec 32)) (v_entry_point_~q~0.base_17 (_ BitVec 32))) (let ((.cse0 (store |c_old(#valid)| v_entry_point_~p~0.base_24 (_ bv1 1)))) (and (= (_ bv0 1) (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (select |c_old(#valid)| v_entry_point_~p~0.base_24))))))))) (not (= (store (store .cse0 v_entry_point_~q~0.base_17 (_ bv0 1)) v_entry_point_~p~0.base_24 (_ bv0 1)) |v_old(#valid)_BEFORE_CALL_18|)) (= (_ bv0 1) (bvneg (bvneg (bvneg (bvneg (select .cse0 v_entry_point_~q~0.base_17))))))))) (not (= (_ bv0 1) (bvneg (bvneg (bvneg (bvneg (select |c_#valid| |v_entry_point_#t~ret39.base_63|))))))))) is different from false [2021-11-07 07:49:23,446 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Shadow problem: [|v_old(#valid)_BEFORE_CALL_18|] [2021-11-07 07:49:23,447 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 0 imperfect interpolant sequences. [2021-11-07 07:49:23,447 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [] total 0 [2021-11-07 07:49:23,447 ERROR L172 FreeRefinementEngine]: Strategy WOLF failed to provide any proof altough trace is infeasible [2021-11-07 07:49:23,447 INFO L627 BasicCegarLoop]: Counterexample might be feasible [2021-11-07 07:49:23,455 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr0ENSURES_VIOLATIONMEMORY_LEAK [2021-11-07 07:49:23,457 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_allocErr0REQUIRES_VIOLATION [2021-11-07 07:49:23,457 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_allocErr1REQUIRES_VIOLATION [2021-11-07 07:49:23,457 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kref_initErr0REQUIRES_VIOLATION [2021-11-07 07:49:23,457 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kref_initErr1REQUIRES_VIOLATION [2021-11-07 07:49:23,458 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr0REQUIRES_VIOLATION [2021-11-07 07:49:23,458 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr1REQUIRES_VIOLATION [2021-11-07 07:49:23,458 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr2REQUIRES_VIOLATION [2021-11-07 07:49:23,458 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr3REQUIRES_VIOLATION [2021-11-07 07:49:23,458 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION [2021-11-07 07:49:23,458 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION [2021-11-07 07:49:23,458 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION [2021-11-07 07:49:23,459 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION [2021-11-07 07:49:23,459 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr0REQUIRES_VIOLATION [2021-11-07 07:49:23,459 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr1REQUIRES_VIOLATION [2021-11-07 07:49:23,459 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr2REQUIRES_VIOLATION [2021-11-07 07:49:23,459 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr3REQUIRES_VIOLATION [2021-11-07 07:49:23,459 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr4REQUIRES_VIOLATION [2021-11-07 07:49:23,460 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr5REQUIRES_VIOLATION [2021-11-07 07:49:23,460 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr6REQUIRES_VIOLATION [2021-11-07 07:49:23,460 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr7REQUIRES_VIOLATION [2021-11-07 07:49:23,460 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_set_drvdataErr0REQUIRES_VIOLATION [2021-11-07 07:49:23,460 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_set_drvdataErr1REQUIRES_VIOLATION [2021-11-07 07:49:23,461 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr0REQUIRES_VIOLATION [2021-11-07 07:49:23,461 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr1REQUIRES_VIOLATION [2021-11-07 07:49:23,461 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr2REQUIRES_VIOLATION [2021-11-07 07:49:23,461 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr3REQUIRES_VIOLATION [2021-11-07 07:49:23,462 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr0REQUIRES_VIOLATION [2021-11-07 07:49:23,462 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr1REQUIRES_VIOLATION [2021-11-07 07:49:23,462 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr2REQUIRES_VIOLATION [2021-11-07 07:49:23,462 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr3REQUIRES_VIOLATION [2021-11-07 07:49:23,462 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_addErr0REQUIRES_VIOLATION [2021-11-07 07:49:23,463 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_addErr1REQUIRES_VIOLATION [2021-11-07 07:49:23,463 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr0REQUIRES_VIOLATION [2021-11-07 07:49:23,463 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr1REQUIRES_VIOLATION [2021-11-07 07:49:23,463 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr2REQUIRES_VIOLATION [2021-11-07 07:49:23,463 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr3REQUIRES_VIOLATION [2021-11-07 07:49:23,464 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr4REQUIRES_VIOLATION [2021-11-07 07:49:23,464 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr5REQUIRES_VIOLATION [2021-11-07 07:49:23,464 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_get_drvdataErr0REQUIRES_VIOLATION [2021-11-07 07:49:23,464 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_get_drvdataErr1REQUIRES_VIOLATION [2021-11-07 07:49:23,464 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr0REQUIRES_VIOLATION [2021-11-07 07:49:23,465 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr1REQUIRES_VIOLATION [2021-11-07 07:49:23,465 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE [2021-11-07 07:49:23,465 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE [2021-11-07 07:49:23,465 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE [2021-11-07 07:49:23,466 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE [2021-11-07 07:49:23,466 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE [2021-11-07 07:49:23,466 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE [2021-11-07 07:49:23,466 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr0REQUIRES_VIOLATION [2021-11-07 07:49:23,467 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr1REQUIRES_VIOLATION [2021-11-07 07:49:23,467 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr2REQUIRES_VIOLATION [2021-11-07 07:49:23,467 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr3REQUIRES_VIOLATION [2021-11-07 07:49:23,467 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr4REQUIRES_VIOLATION [2021-11-07 07:49:23,467 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr5REQUIRES_VIOLATION [2021-11-07 07:49:23,468 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr0REQUIRES_VIOLATION [2021-11-07 07:49:23,468 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr1REQUIRES_VIOLATION [2021-11-07 07:49:23,468 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE [2021-11-07 07:49:23,468 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE [2021-11-07 07:49:23,469 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE [2021-11-07 07:49:23,469 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE [2021-11-07 07:49:23,469 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE [2021-11-07 07:49:23,469 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE [2021-11-07 07:49:23,470 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_createErr0REQUIRES_VIOLATION [2021-11-07 07:49:23,470 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_createErr1REQUIRES_VIOLATION [2021-11-07 07:49:23,470 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr0REQUIRES_VIOLATION [2021-11-07 07:49:23,470 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr1REQUIRES_VIOLATION [2021-11-07 07:49:23,470 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr2REQUIRES_VIOLATION [2021-11-07 07:49:23,471 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr3REQUIRES_VIOLATION [2021-11-07 07:49:23,471 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_add_tailErr0REQUIRES_VIOLATION [2021-11-07 07:49:23,471 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_add_tailErr1REQUIRES_VIOLATION [2021-11-07 07:49:23,471 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr0ASSERT_VIOLATIONMEMORY_FREE [2021-11-07 07:49:23,471 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr1ASSERT_VIOLATIONMEMORY_FREE [2021-11-07 07:49:23,472 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE [2021-11-07 07:49:23,472 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE [2021-11-07 07:49:23,472 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE [2021-11-07 07:49:23,472 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr5ASSERT_VIOLATIONMEMORY_FREE [2021-11-07 07:49:23,476 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62e129be-4727-4f09-a9c6-114dc1736f2d/bin/uautomizer-AkOaLMaTGY/cvc4 --incremental --print-success --lang smt (15)] Forceful destruction successful, exit code 0 [2021-11-07 07:49:23,685 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62e129be-4727-4f09-a9c6-114dc1736f2d/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2021-11-07 07:49:23,898 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62e129be-4727-4f09-a9c6-114dc1736f2d/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2021-11-07 07:49:24,076 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62e129be-4727-4f09-a9c6-114dc1736f2d/bin/uautomizer-AkOaLMaTGY/cvc4 --incremental --print-success --lang smt,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62e129be-4727-4f09-a9c6-114dc1736f2d/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3,16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62e129be-4727-4f09-a9c6-114dc1736f2d/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 07:49:24,079 INFO L731 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 07:49:24,083 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-07 07:49:24,086 WARN L418 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2021-11-07 07:49:24,094 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 07:49:24 BoogieIcfgContainer [2021-11-07 07:49:24,094 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-07 07:49:24,095 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-07 07:49:24,095 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-07 07:49:24,096 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-07 07:49:24,096 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 07:47:29" (3/4) ... [2021-11-07 07:49:24,099 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-07 07:49:24,100 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-07 07:49:24,101 INFO L168 Benchmark]: Toolchain (without parser) took 117209.48 ms. Allocated memory was 60.8 MB in the beginning and 104.9 MB in the end (delta: 44.0 MB). Free memory was 36.6 MB in the beginning and 49.4 MB in the end (delta: -12.8 MB). Peak memory consumption was 30.8 MB. Max. memory is 16.1 GB. [2021-11-07 07:49:24,101 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 60.8 MB. Free memory is still 40.6 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 07:49:24,101 INFO L168 Benchmark]: CACSL2BoogieTranslator took 792.83 ms. Allocated memory was 60.8 MB in the beginning and 79.7 MB in the end (delta: 18.9 MB). Free memory was 36.4 MB in the beginning and 44.0 MB in the end (delta: -7.5 MB). Peak memory consumption was 10.0 MB. Max. memory is 16.1 GB. [2021-11-07 07:49:24,102 INFO L168 Benchmark]: Boogie Preprocessor took 93.59 ms. Allocated memory is still 79.7 MB. Free memory was 44.0 MB in the beginning and 39.2 MB in the end (delta: 4.8 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-11-07 07:49:24,102 INFO L168 Benchmark]: RCFGBuilder took 1443.03 ms. Allocated memory is still 79.7 MB. Free memory was 39.2 MB in the beginning and 43.4 MB in the end (delta: -4.2 MB). Peak memory consumption was 11.5 MB. Max. memory is 16.1 GB. [2021-11-07 07:49:24,103 INFO L168 Benchmark]: TraceAbstraction took 114866.64 ms. Allocated memory was 79.7 MB in the beginning and 104.9 MB in the end (delta: 25.2 MB). Free memory was 43.0 MB in the beginning and 50.4 MB in the end (delta: -7.4 MB). Peak memory consumption was 17.7 MB. Max. memory is 16.1 GB. [2021-11-07 07:49:24,103 INFO L168 Benchmark]: Witness Printer took 4.48 ms. Allocated memory is still 104.9 MB. Free memory is still 49.4 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 07:49:24,105 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 60.8 MB. Free memory is still 40.6 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 792.83 ms. Allocated memory was 60.8 MB in the beginning and 79.7 MB in the end (delta: 18.9 MB). Free memory was 36.4 MB in the beginning and 44.0 MB in the end (delta: -7.5 MB). Peak memory consumption was 10.0 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 93.59 ms. Allocated memory is still 79.7 MB. Free memory was 44.0 MB in the beginning and 39.2 MB in the end (delta: 4.8 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1443.03 ms. Allocated memory is still 79.7 MB. Free memory was 39.2 MB in the beginning and 43.4 MB in the end (delta: -4.2 MB). Peak memory consumption was 11.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 114866.64 ms. Allocated memory was 79.7 MB in the beginning and 104.9 MB in the end (delta: 25.2 MB). Free memory was 43.0 MB in the beginning and 50.4 MB in the end (delta: -7.4 MB). Peak memory consumption was 17.7 MB. Max. memory is 16.1 GB. * Witness Printer took 4.48 ms. Allocated memory is still 104.9 MB. Free memory is still 49.4 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 765]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: unable to decide satisfiability of path constraint, overapproximation of memtrack at line 765. Possible FailurePath: [L569] struct ldv_list_head ldv_global_msg_list = { &(ldv_global_msg_list), &(ldv_global_msg_list) }; [L766] CALL entry_point() [L758] CALL, EXPR ldv_malloc(sizeof(int)) [L526] COND TRUE __VERIFIER_nondet_int() [L527] return malloc(size); [L758] RET, EXPR ldv_malloc(sizeof(int)) [L758] int *p = (int *)ldv_malloc(sizeof(int)); [L759] COND TRUE \read(*p) [L760] CALL, EXPR ldv_malloc(sizeof(int)) [L526] COND TRUE __VERIFIER_nondet_int() [L527] return malloc(size); [L760] RET, EXPR ldv_malloc(sizeof(int)) [L760] int *q = (int *)ldv_malloc(sizeof(int)); [L761] free(q) [L761] free(q) [L761] free(q) [L762] free(p) [L762] free(p) [L762] free(p) [L766] RET entry_point() - UnprovableResult [Line: 578]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 578]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 682]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 682]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 658]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 658]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 660]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 660]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 540]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 540]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 541]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 541]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 547]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 547]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 548]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 548]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 549]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 549]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 550]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 550]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 623]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 623]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 554]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 554]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 555]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 555]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 666]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 666]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 668]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 668]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 559]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 559]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 607]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 607]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 607]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 607]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 607]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 607]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 619]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 619]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 593]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 593]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 593]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 593]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 593]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 594]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 594]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 594]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 587]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 587]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 587]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 587]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 588]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 588]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 699]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 699]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 700]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 700]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 700]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 702]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 702]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 702]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 744]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 744]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 567]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 567]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 567]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 567]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 563]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 563]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 761]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 761]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 761]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 762]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 762]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 762]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 47 procedures, 344 locations, 77 error locations. Started 1 CEGAR loops. OverallTime: 114.7s, OverallIterations: 12, TraceHistogramMax: 2, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 3.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 323 SDtfs, 197 SDslu, 835 SDs, 0 SdLazy, 781 SolverSat, 75 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 3.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 493 GetRequests, 411 SyntacticMatches, 9 SemanticMatches, 73 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 147 ImplicationChecksByTransitivity, 7.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=104occurred in iteration=0, InterpolantAutomatonStates: 77, 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, 11 MinimizatonAttempts, 89 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 19.5s InterpolantComputationTime, 287 NumberOfCodeBlocks, 287 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 481 ConstructedInterpolants, 25 QuantifiedInterpolants, 2469 SizeOfPredicates, 4 NumberOfNonLiveVariables, 1053 ConjunctsInSsa, 89 ConjunctsInUnsatCore, 23 InterpolantComputations, 14 PerfectInterpolantSequences, 58/76 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-11-07 07:49:24,182 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62e129be-4727-4f09-a9c6-114dc1736f2d/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN