./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/ldv-memsafety/memleaks_test18_1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b98adda-b259-42fe-83e6-3ebaf4613865/bin/uautomizer-UnR33cPsHg/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b98adda-b259-42fe-83e6-3ebaf4613865/bin/uautomizer-UnR33cPsHg/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b98adda-b259-42fe-83e6-3ebaf4613865/bin/uautomizer-UnR33cPsHg/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b98adda-b259-42fe-83e6-3ebaf4613865/bin/uautomizer-UnR33cPsHg/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test18_1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b98adda-b259-42fe-83e6-3ebaf4613865/bin/uautomizer-UnR33cPsHg/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b98adda-b259-42fe-83e6-3ebaf4613865/bin/uautomizer-UnR33cPsHg --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 12544117846b274bd1cb12a6694f8fda1d77f0b1327b2e9a353cfe44563b100a ................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b98adda-b259-42fe-83e6-3ebaf4613865/bin/uautomizer-UnR33cPsHg/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b98adda-b259-42fe-83e6-3ebaf4613865/bin/uautomizer-UnR33cPsHg/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b98adda-b259-42fe-83e6-3ebaf4613865/bin/uautomizer-UnR33cPsHg/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b98adda-b259-42fe-83e6-3ebaf4613865/bin/uautomizer-UnR33cPsHg/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test18_1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b98adda-b259-42fe-83e6-3ebaf4613865/bin/uautomizer-UnR33cPsHg/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b98adda-b259-42fe-83e6-3ebaf4613865/bin/uautomizer-UnR33cPsHg --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 12544117846b274bd1cb12a6694f8fda1d77f0b1327b2e9a353cfe44563b100a ......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-28 08:55:47,320 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 08:55:47,323 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 08:55:47,368 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 08:55:47,369 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 08:55:47,373 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 08:55:47,375 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 08:55:47,379 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 08:55:47,381 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 08:55:47,382 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 08:55:47,383 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 08:55:47,385 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 08:55:47,385 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 08:55:47,387 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 08:55:47,388 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 08:55:47,390 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 08:55:47,391 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 08:55:47,392 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 08:55:47,394 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 08:55:47,396 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 08:55:47,398 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 08:55:47,402 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 08:55:47,404 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 08:55:47,406 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 08:55:47,410 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 08:55:47,415 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 08:55:47,416 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 08:55:47,417 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 08:55:47,419 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 08:55:47,420 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 08:55:47,421 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 08:55:47,423 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 08:55:47,425 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 08:55:47,426 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 08:55:47,428 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 08:55:47,428 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 08:55:47,429 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 08:55:47,429 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 08:55:47,430 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 08:55:47,431 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 08:55:47,431 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 08:55:47,432 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b98adda-b259-42fe-83e6-3ebaf4613865/bin/uautomizer-UnR33cPsHg/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2021-10-28 08:55:47,466 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 08:55:47,469 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 08:55:47,469 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 08:55:47,470 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 08:55:47,474 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 08:55:47,475 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 08:55:47,475 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 08:55:47,476 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 08:55:47,476 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 08:55:47,476 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-28 08:55:47,478 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 08:55:47,478 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 08:55:47,478 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 08:55:47,478 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-10-28 08:55:47,479 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-10-28 08:55:47,479 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-10-28 08:55:47,479 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-28 08:55:47,479 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-28 08:55:47,480 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 08:55:47,480 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 08:55:47,480 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 08:55:47,480 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 08:55:47,481 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-28 08:55:47,481 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 08:55:47,481 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 08:55:47,481 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-28 08:55:47,482 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 08:55:47,482 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-28 08:55:47,482 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 08:55:47,484 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_5b98adda-b259-42fe-83e6-3ebaf4613865/bin/uautomizer-UnR33cPsHg/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b98adda-b259-42fe-83e6-3ebaf4613865/bin/uautomizer-UnR33cPsHg Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 12544117846b274bd1cb12a6694f8fda1d77f0b1327b2e9a353cfe44563b100a [2021-10-28 08:55:47,851 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 08:55:47,894 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 08:55:47,897 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 08:55:47,899 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 08:55:47,901 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 08:55:47,902 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b98adda-b259-42fe-83e6-3ebaf4613865/bin/uautomizer-UnR33cPsHg/../../sv-benchmarks/c/ldv-memsafety/memleaks_test18_1.i [2021-10-28 08:55:47,994 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b98adda-b259-42fe-83e6-3ebaf4613865/bin/uautomizer-UnR33cPsHg/data/c3c5fbe67/9a3b196547094b5a820a974a5e71e78e/FLAGa3493d585 [2021-10-28 08:55:48,800 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 08:55:48,802 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b98adda-b259-42fe-83e6-3ebaf4613865/sv-benchmarks/c/ldv-memsafety/memleaks_test18_1.i [2021-10-28 08:55:48,832 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b98adda-b259-42fe-83e6-3ebaf4613865/bin/uautomizer-UnR33cPsHg/data/c3c5fbe67/9a3b196547094b5a820a974a5e71e78e/FLAGa3493d585 [2021-10-28 08:55:49,005 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b98adda-b259-42fe-83e6-3ebaf4613865/bin/uautomizer-UnR33cPsHg/data/c3c5fbe67/9a3b196547094b5a820a974a5e71e78e [2021-10-28 08:55:49,010 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 08:55:49,011 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-10-28 08:55:49,014 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 08:55:49,014 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 08:55:49,032 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 08:55:49,033 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 08:55:49" (1/1) ... [2021-10-28 08:55:49,034 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5f4c2929 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:55:49, skipping insertion in model container [2021-10-28 08:55:49,034 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 08:55:49" (1/1) ... [2021-10-28 08:55:49,043 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 08:55:49,096 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 08:55:49,599 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 08:55:49,624 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2021-10-28 08:55:49,625 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@79d67e17 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:55:49, skipping insertion in model container [2021-10-28 08:55:49,625 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 08:55:49,626 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.preprocessor [2021-10-28 08:55:49,629 INFO L168 Benchmark]: Toolchain (without parser) took 615.80 ms. Allocated memory is still 96.5 MB. Free memory was 61.2 MB in the beginning and 67.9 MB in the end (delta: -6.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-28 08:55:49,630 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 77.6 MB. Free memory was 54.1 MB in the beginning and 54.1 MB in the end (delta: 21.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 08:55:49,631 INFO L168 Benchmark]: CACSL2BoogieTranslator took 612.16 ms. Allocated memory is still 96.5 MB. Free memory was 61.2 MB in the beginning and 67.9 MB in the end (delta: -6.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-28 08:55:49,633 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 77.6 MB. Free memory was 54.1 MB in the beginning and 54.1 MB in the end (delta: 21.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 612.16 ms. Allocated memory is still 96.5 MB. Free memory was 61.2 MB in the beginning and 67.9 MB in the end (delta: -6.7 MB). Peak memory consumption was 8.4 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... ### Bit-precise run ### This is Ultimate 0.2.1-dev-b2eff8b [2021-10-28 08:55:52,163 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 08:55:52,166 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 08:55:52,203 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 08:55:52,204 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 08:55:52,205 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 08:55:52,208 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 08:55:52,211 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 08:55:52,214 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 08:55:52,215 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 08:55:52,216 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 08:55:52,218 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 08:55:52,219 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 08:55:52,220 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 08:55:52,222 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 08:55:52,224 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 08:55:52,226 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 08:55:52,227 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 08:55:52,244 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 08:55:52,247 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 08:55:52,250 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 08:55:52,252 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 08:55:52,254 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 08:55:52,255 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 08:55:52,260 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 08:55:52,261 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 08:55:52,261 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 08:55:52,262 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 08:55:52,263 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 08:55:52,265 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 08:55:52,265 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 08:55:52,266 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 08:55:52,268 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 08:55:52,269 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 08:55:52,271 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 08:55:52,271 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 08:55:52,272 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 08:55:52,273 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 08:55:52,273 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 08:55:52,275 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 08:55:52,276 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 08:55:52,277 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b98adda-b259-42fe-83e6-3ebaf4613865/bin/uautomizer-UnR33cPsHg/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2021-10-28 08:55:52,309 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 08:55:52,309 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 08:55:52,310 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 08:55:52,311 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 08:55:52,312 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 08:55:52,313 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 08:55:52,313 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 08:55:52,314 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 08:55:52,314 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 08:55:52,315 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-28 08:55:52,315 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 08:55:52,315 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 08:55:52,316 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 08:55:52,316 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-10-28 08:55:52,317 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-10-28 08:55:52,317 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-10-28 08:55:52,318 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-28 08:55:52,318 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-28 08:55:52,319 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-28 08:55:52,319 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-28 08:55:52,320 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 08:55:52,320 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 08:55:52,320 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 08:55:52,321 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 08:55:52,321 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-28 08:55:52,321 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 08:55:52,322 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 08:55:52,322 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-28 08:55:52,322 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-10-28 08:55:52,322 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-28 08:55:52,323 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 08:55:52,323 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-28 08:55:52,323 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_5b98adda-b259-42fe-83e6-3ebaf4613865/bin/uautomizer-UnR33cPsHg/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b98adda-b259-42fe-83e6-3ebaf4613865/bin/uautomizer-UnR33cPsHg Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 12544117846b274bd1cb12a6694f8fda1d77f0b1327b2e9a353cfe44563b100a [2021-10-28 08:55:52,805 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 08:55:52,836 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 08:55:52,840 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 08:55:52,841 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 08:55:52,842 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 08:55:52,843 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b98adda-b259-42fe-83e6-3ebaf4613865/bin/uautomizer-UnR33cPsHg/../../sv-benchmarks/c/ldv-memsafety/memleaks_test18_1.i [2021-10-28 08:55:52,937 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b98adda-b259-42fe-83e6-3ebaf4613865/bin/uautomizer-UnR33cPsHg/data/d8502e082/6d6a61ac2b5f4be59591e2e5698a9746/FLAGbe7634830 [2021-10-28 08:55:53,767 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 08:55:53,767 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b98adda-b259-42fe-83e6-3ebaf4613865/sv-benchmarks/c/ldv-memsafety/memleaks_test18_1.i [2021-10-28 08:55:53,787 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b98adda-b259-42fe-83e6-3ebaf4613865/bin/uautomizer-UnR33cPsHg/data/d8502e082/6d6a61ac2b5f4be59591e2e5698a9746/FLAGbe7634830 [2021-10-28 08:55:53,993 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b98adda-b259-42fe-83e6-3ebaf4613865/bin/uautomizer-UnR33cPsHg/data/d8502e082/6d6a61ac2b5f4be59591e2e5698a9746 [2021-10-28 08:55:53,996 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 08:55:53,998 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-10-28 08:55:54,003 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 08:55:54,003 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 08:55:54,007 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 08:55:54,008 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 08:55:53" (1/1) ... [2021-10-28 08:55:54,010 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2501f9b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:55:54, skipping insertion in model container [2021-10-28 08:55:54,010 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 08:55:53" (1/1) ... [2021-10-28 08:55:54,020 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 08:55:54,102 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 08:55:54,703 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 08:55:54,726 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-10-28 08:55:54,740 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 08:55:54,832 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 08:55:54,853 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 08:55:54,934 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 08:55:54,998 INFO L208 MainTranslator]: Completed translation [2021-10-28 08:55:54,999 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:55:54 WrapperNode [2021-10-28 08:55:54,999 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 08:55:55,001 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 08:55:55,001 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 08:55:55,001 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 08:55:55,014 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:55:54" (1/1) ... [2021-10-28 08:55:55,014 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:55:54" (1/1) ... [2021-10-28 08:55:55,066 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:55:54" (1/1) ... [2021-10-28 08:55:55,076 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:55:54" (1/1) ... [2021-10-28 08:55:55,124 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:55:54" (1/1) ... [2021-10-28 08:55:55,146 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:55:54" (1/1) ... [2021-10-28 08:55:55,166 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:55:54" (1/1) ... [2021-10-28 08:55:55,194 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 08:55:55,195 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 08:55:55,195 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 08:55:55,196 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 08:55:55,203 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:55:54" (1/1) ... [2021-10-28 08:55:55,211 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 08:55:55,222 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b98adda-b259-42fe-83e6-3ebaf4613865/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:55:55,237 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b98adda-b259-42fe-83e6-3ebaf4613865/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-28 08:55:55,271 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b98adda-b259-42fe-83e6-3ebaf4613865/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-28 08:55:55,292 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-10-28 08:55:55,293 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 08:55:55,293 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-10-28 08:55:55,294 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.setCurrentRoundingMode [2021-10-28 08:55:55,294 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2021-10-28 08:55:55,296 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2021-10-28 08:55:55,296 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2021-10-28 08:55:55,297 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2021-10-28 08:55:55,297 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2021-10-28 08:55:55,297 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_nonpositive [2021-10-28 08:55:55,297 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_positive [2021-10-28 08:55:55,297 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-10-28 08:55:55,298 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-10-28 08:55:55,298 INFO L138 BoogieDeclarations]: Found implementation of procedure LDV_INIT_LIST_HEAD [2021-10-28 08:55:55,298 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2021-10-28 08:55:55,298 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_del [2021-10-28 08:55:55,299 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add [2021-10-28 08:55:55,299 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add_tail [2021-10-28 08:55:55,300 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_del [2021-10-28 08:55:55,300 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_alloc [2021-10-28 08:55:55,300 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_fill [2021-10-28 08:55:55,300 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_free [2021-10-28 08:55:55,300 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_msg [2021-10-28 08:55:55,301 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_destroy_msgs [2021-10-28 08:55:55,301 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2021-10-28 08:55:55,301 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-10-28 08:55:55,301 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_add_return [2021-10-28 08:55:55,301 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_sub_return [2021-10-28 08:55:55,302 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_sub [2021-10-28 08:55:55,302 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_init [2021-10-28 08:55:55,302 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_get [2021-10-28 08:55:55,303 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_put [2021-10-28 08:55:55,303 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_del [2021-10-28 08:55:55,303 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_cleanup [2021-10-28 08:55:55,303 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_release [2021-10-28 08:55:55,303 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_put [2021-10-28 08:55:55,304 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_get [2021-10-28 08:55:55,304 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init_internal [2021-10-28 08:55:55,304 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init [2021-10-28 08:55:55,304 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_create [2021-10-28 08:55:55,304 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2021-10-28 08:55:55,305 INFO L138 BoogieDeclarations]: Found implementation of procedure g [2021-10-28 08:55:55,305 INFO L138 BoogieDeclarations]: Found implementation of procedure entry_point [2021-10-28 08:55:55,306 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-10-28 08:55:55,306 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-10-28 08:55:55,306 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-10-28 08:55:55,307 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-10-28 08:55:55,307 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2021-10-28 08:55:55,307 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2021-10-28 08:55:55,308 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2021-10-28 08:55:55,308 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2021-10-28 08:55:55,308 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2021-10-28 08:55:55,309 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2021-10-28 08:55:55,309 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2021-10-28 08:55:55,309 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2021-10-28 08:55:55,309 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2021-10-28 08:55:55,309 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2021-10-28 08:55:55,310 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2021-10-28 08:55:55,310 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2021-10-28 08:55:55,311 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2021-10-28 08:55:55,311 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2021-10-28 08:55:55,312 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2021-10-28 08:55:55,312 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2021-10-28 08:55:55,313 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2021-10-28 08:55:55,313 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2021-10-28 08:55:55,314 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2021-10-28 08:55:55,314 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2021-10-28 08:55:55,314 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2021-10-28 08:55:55,314 INFO L130 BoogieDeclarations]: Found specification of procedure select [2021-10-28 08:55:55,314 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2021-10-28 08:55:55,315 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2021-10-28 08:55:55,315 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2021-10-28 08:55:55,315 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2021-10-28 08:55:55,315 INFO L130 BoogieDeclarations]: Found specification of procedure random [2021-10-28 08:55:55,315 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2021-10-28 08:55:55,316 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2021-10-28 08:55:55,316 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2021-10-28 08:55:55,316 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2021-10-28 08:55:55,316 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2021-10-28 08:55:55,317 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2021-10-28 08:55:55,317 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2021-10-28 08:55:55,317 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2021-10-28 08:55:55,317 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2021-10-28 08:55:55,318 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2021-10-28 08:55:55,318 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2021-10-28 08:55:55,319 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2021-10-28 08:55:55,319 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2021-10-28 08:55:55,319 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2021-10-28 08:55:55,319 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2021-10-28 08:55:55,319 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2021-10-28 08:55:55,320 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2021-10-28 08:55:55,320 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2021-10-28 08:55:55,320 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2021-10-28 08:55:55,320 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2021-10-28 08:55:55,320 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2021-10-28 08:55:55,321 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2021-10-28 08:55:55,321 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2021-10-28 08:55:55,321 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2021-10-28 08:55:55,322 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2021-10-28 08:55:55,322 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2021-10-28 08:55:55,322 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2021-10-28 08:55:55,322 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2021-10-28 08:55:55,323 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2021-10-28 08:55:55,323 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2021-10-28 08:55:55,323 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2021-10-28 08:55:55,323 INFO L130 BoogieDeclarations]: Found specification of procedure free [2021-10-28 08:55:55,323 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2021-10-28 08:55:55,324 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2021-10-28 08:55:55,324 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2021-10-28 08:55:55,324 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2021-10-28 08:55:55,324 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-10-28 08:55:55,324 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2021-10-28 08:55:55,325 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2021-10-28 08:55:55,325 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2021-10-28 08:55:55,325 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2021-10-28 08:55:55,325 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2021-10-28 08:55:55,325 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2021-10-28 08:55:55,326 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2021-10-28 08:55:55,326 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2021-10-28 08:55:55,326 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2021-10-28 08:55:55,327 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2021-10-28 08:55:55,327 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2021-10-28 08:55:55,328 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2021-10-28 08:55:55,328 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2021-10-28 08:55:55,331 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2021-10-28 08:55:55,331 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2021-10-28 08:55:55,331 INFO L130 BoogieDeclarations]: Found specification of procedure system [2021-10-28 08:55:55,332 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2021-10-28 08:55:55,334 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2021-10-28 08:55:55,334 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2021-10-28 08:55:55,334 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2021-10-28 08:55:55,334 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2021-10-28 08:55:55,335 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2021-10-28 08:55:55,341 INFO L130 BoogieDeclarations]: Found specification of procedure div [2021-10-28 08:55:55,341 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2021-10-28 08:55:55,341 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2021-10-28 08:55:55,342 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2021-10-28 08:55:55,342 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2021-10-28 08:55:55,342 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2021-10-28 08:55:55,342 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2021-10-28 08:55:55,342 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2021-10-28 08:55:55,343 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2021-10-28 08:55:55,343 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2021-10-28 08:55:55,343 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2021-10-28 08:55:55,343 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2021-10-28 08:55:55,343 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2021-10-28 08:55:55,344 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2021-10-28 08:55:55,344 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2021-10-28 08:55:55,344 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2021-10-28 08:55:55,344 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2021-10-28 08:55:55,344 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2021-10-28 08:55:55,344 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2021-10-28 08:55:55,345 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2021-10-28 08:55:55,345 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2021-10-28 08:55:55,345 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-10-28 08:55:55,345 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-10-28 08:55:55,345 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_nonpositive [2021-10-28 08:55:55,346 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_positive [2021-10-28 08:55:55,346 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2021-10-28 08:55:55,346 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2021-10-28 08:55:55,346 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-10-28 08:55:55,346 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-28 08:55:55,347 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-10-28 08:55:55,347 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-10-28 08:55:55,347 INFO L130 BoogieDeclarations]: Found specification of procedure LDV_INIT_LIST_HEAD [2021-10-28 08:55:55,347 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-10-28 08:55:55,347 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2021-10-28 08:55:55,347 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_del [2021-10-28 08:55:55,348 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add [2021-10-28 08:55:55,348 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-10-28 08:55:55,348 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add_tail [2021-10-28 08:55:55,348 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_del [2021-10-28 08:55:55,348 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_alloc [2021-10-28 08:55:55,349 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_fill [2021-10-28 08:55:55,349 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-10-28 08:55:55,349 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_free [2021-10-28 08:55:55,349 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-28 08:55:55,349 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_msg [2021-10-28 08:55:55,350 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_destroy_msgs [2021-10-28 08:55:55,350 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2021-10-28 08:55:55,350 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-10-28 08:55:55,350 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_add_return [2021-10-28 08:55:55,350 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-10-28 08:55:55,350 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-10-28 08:55:55,351 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_sub_return [2021-10-28 08:55:55,351 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_sub [2021-10-28 08:55:55,351 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-10-28 08:55:55,351 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_init [2021-10-28 08:55:55,351 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_get [2021-10-28 08:55:55,352 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_put [2021-10-28 08:55:55,352 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_del [2021-10-28 08:55:55,352 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_cleanup [2021-10-28 08:55:55,352 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_release [2021-10-28 08:55:55,352 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_put [2021-10-28 08:55:55,353 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_get [2021-10-28 08:55:55,353 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init_internal [2021-10-28 08:55:55,353 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init [2021-10-28 08:55:55,353 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_create [2021-10-28 08:55:55,353 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-10-28 08:55:55,353 INFO L130 BoogieDeclarations]: Found specification of procedure f [2021-10-28 08:55:55,354 INFO L130 BoogieDeclarations]: Found specification of procedure g [2021-10-28 08:55:55,354 INFO L130 BoogieDeclarations]: Found specification of procedure entry_point [2021-10-28 08:55:55,354 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-10-28 08:55:55,354 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-10-28 08:55:55,354 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 08:55:55,355 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-10-28 08:55:55,355 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 08:55:55,355 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.setCurrentRoundingMode [2021-10-28 08:55:55,355 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-10-28 08:55:55,355 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2021-10-28 08:55:55,356 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-10-28 08:55:55,356 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-10-28 08:55:56,055 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-28 08:55:56,470 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-28 08:55:56,935 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 08:55:56,936 INFO L299 CfgBuilder]: Removed 3 assume(true) statements. [2021-10-28 08:55:56,939 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 08:55:56 BoogieIcfgContainer [2021-10-28 08:55:56,939 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 08:55:56,941 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-28 08:55:56,941 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-28 08:55:56,945 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-28 08:55:56,945 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 08:55:53" (1/3) ... [2021-10-28 08:55:56,946 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28ca458b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 08:55:56, skipping insertion in model container [2021-10-28 08:55:56,946 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:55:54" (2/3) ... [2021-10-28 08:55:56,947 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28ca458b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 08:55:56, skipping insertion in model container [2021-10-28 08:55:56,947 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 08:55:56" (3/3) ... [2021-10-28 08:55:56,948 INFO L111 eAbstractionObserver]: Analyzing ICFG memleaks_test18_1.i [2021-10-28 08:55:56,955 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-28 08:55:56,955 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 78 error locations. [2021-10-28 08:55:57,010 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-28 08:55:57,017 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-28 08:55:57,018 INFO L340 AbstractCegarLoop]: Starting to check reachability of 78 error locations. [2021-10-28 08:55:57,037 INFO L276 IsEmpty]: Start isEmpty. Operand has 111 states, 63 states have (on average 1.5873015873015872) internal successors, (100), 88 states have internal predecessors, (100), 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) [2021-10-28 08:55:57,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-10-28 08:55:57,047 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:55:57,047 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:55:57,048 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 74 more)] === [2021-10-28 08:55:57,054 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:55:57,054 INFO L85 PathProgramCache]: Analyzing trace with hash 1086874314, now seen corresponding path program 1 times [2021-10-28 08:55:57,068 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 08:55:57,068 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [166722805] [2021-10-28 08:55:57,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:55:57,070 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 08:55:57,070 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b98adda-b259-42fe-83e6-3ebaf4613865/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 08:55:57,073 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b98adda-b259-42fe-83e6-3ebaf4613865/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 08:55:57,139 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b98adda-b259-42fe-83e6-3ebaf4613865/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-28 08:55:57,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:55:57,325 INFO L263 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 08:55:57,335 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:55:57,500 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:55:57,501 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 08:55:57,668 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:55:57,669 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 08:55:57,669 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [166722805] [2021-10-28 08:55:57,670 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [166722805] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 08:55:57,670 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:55:57,670 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-10-28 08:55:57,672 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [193368653] [2021-10-28 08:55:57,682 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-28 08:55:57,682 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 08:55:57,704 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-28 08:55:57,708 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-28 08:55:57,711 INFO L87 Difference]: Start difference. First operand has 111 states, 63 states have (on average 1.5873015873015872) internal successors, (100), 88 states have internal predecessors, (100), 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 2.0) internal successors, (10), 4 states have internal predecessors, (10), 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) [2021-10-28 08:55:57,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:55:57,862 INFO L93 Difference]: Finished difference Result 67 states and 78 transitions. [2021-10-28 08:55:57,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-28 08:55:57,864 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (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 17 [2021-10-28 08:55:57,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:55:57,874 INFO L225 Difference]: With dead ends: 67 [2021-10-28 08:55:57,875 INFO L226 Difference]: Without dead ends: 64 [2021-10-28 08:55:57,876 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-28 08:55:57,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2021-10-28 08:55:57,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 42. [2021-10-28 08:55:57,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 25 states have (on average 1.48) internal successors, (37), 32 states have internal predecessors, (37), 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) [2021-10-28 08:55:57,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 48 transitions. [2021-10-28 08:55:57,923 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 48 transitions. Word has length 17 [2021-10-28 08:55:57,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:55:57,924 INFO L470 AbstractCegarLoop]: Abstraction has 42 states and 48 transitions. [2021-10-28 08:55:57,924 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (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) [2021-10-28 08:55:57,925 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 48 transitions. [2021-10-28 08:55:57,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-10-28 08:55:57,926 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:55:57,927 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:55:57,945 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b98adda-b259-42fe-83e6-3ebaf4613865/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-28 08:55:58,140 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b98adda-b259-42fe-83e6-3ebaf4613865/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 08:55:58,141 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 74 more)] === [2021-10-28 08:55:58,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:55:58,142 INFO L85 PathProgramCache]: Analyzing trace with hash -1465282647, now seen corresponding path program 1 times [2021-10-28 08:55:58,142 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 08:55:58,142 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [880512993] [2021-10-28 08:55:58,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:55:58,143 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 08:55:58,143 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b98adda-b259-42fe-83e6-3ebaf4613865/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 08:55:58,145 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b98adda-b259-42fe-83e6-3ebaf4613865/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 08:55:58,156 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b98adda-b259-42fe-83e6-3ebaf4613865/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-28 08:55:58,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:55:58,350 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-28 08:55:58,354 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:55:58,453 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:55:58,453 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 08:55:58,575 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:55:58,576 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 08:55:58,576 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [880512993] [2021-10-28 08:55:58,577 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [880512993] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 08:55:58,577 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:55:58,579 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-10-28 08:55:58,579 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [899443445] [2021-10-28 08:55:58,585 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 08:55:58,585 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 08:55:58,586 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 08:55:58,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 08:55:58,587 INFO L87 Difference]: Start difference. First operand 42 states and 48 transitions. Second operand has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 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) [2021-10-28 08:55:58,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:55:58,717 INFO L93 Difference]: Finished difference Result 64 states and 74 transitions. [2021-10-28 08:55:58,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 08:55:58,717 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 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 17 [2021-10-28 08:55:58,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:55:58,719 INFO L225 Difference]: With dead ends: 64 [2021-10-28 08:55:58,719 INFO L226 Difference]: Without dead ends: 61 [2021-10-28 08:55:58,720 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 08:55:58,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2021-10-28 08:55:58,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 50. [2021-10-28 08:55:58,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 32 states have (on average 1.46875) internal successors, (47), 39 states have internal predecessors, (47), 6 states have call successors, (6), 4 states have call predecessors, (6), 4 states have return successors, (8), 6 states have call predecessors, (8), 5 states have call successors, (8) [2021-10-28 08:55:58,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 61 transitions. [2021-10-28 08:55:58,739 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 61 transitions. Word has length 17 [2021-10-28 08:55:58,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:55:58,740 INFO L470 AbstractCegarLoop]: Abstraction has 50 states and 61 transitions. [2021-10-28 08:55:58,740 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 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) [2021-10-28 08:55:58,740 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 61 transitions. [2021-10-28 08:55:58,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-10-28 08:55:58,742 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:55:58,742 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:55:58,766 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b98adda-b259-42fe-83e6-3ebaf4613865/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-10-28 08:55:58,966 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b98adda-b259-42fe-83e6-3ebaf4613865/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 08:55:58,967 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting entry_pointErr2REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 74 more)] === [2021-10-28 08:55:58,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:55:58,968 INFO L85 PathProgramCache]: Analyzing trace with hash -666992135, now seen corresponding path program 1 times [2021-10-28 08:55:58,968 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 08:55:58,969 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1418839943] [2021-10-28 08:55:58,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:55:58,969 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 08:55:58,969 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b98adda-b259-42fe-83e6-3ebaf4613865/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 08:55:58,970 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b98adda-b259-42fe-83e6-3ebaf4613865/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 08:55:58,973 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b98adda-b259-42fe-83e6-3ebaf4613865/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-28 08:55:59,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:55:59,165 INFO L263 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-28 08:55:59,166 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:55:59,255 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:55:59,255 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 08:55:59,346 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:55:59,346 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 08:55:59,347 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1418839943] [2021-10-28 08:55:59,347 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1418839943] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 08:55:59,347 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:55:59,348 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-10-28 08:55:59,348 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1627235675] [2021-10-28 08:55:59,349 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-28 08:55:59,349 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 08:55:59,353 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-28 08:55:59,354 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-10-28 08:55:59,354 INFO L87 Difference]: Start difference. First operand 50 states and 61 transitions. Second operand has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 6 states have internal predecessors, (16), 3 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-10-28 08:55:59,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:55:59,437 INFO L93 Difference]: Finished difference Result 98 states and 119 transitions. [2021-10-28 08:55:59,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-28 08:55:59,438 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 6 states have internal predecessors, (16), 3 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 18 [2021-10-28 08:55:59,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:55:59,440 INFO L225 Difference]: With dead ends: 98 [2021-10-28 08:55:59,440 INFO L226 Difference]: Without dead ends: 98 [2021-10-28 08:55:59,441 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2021-10-28 08:55:59,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2021-10-28 08:55:59,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 64. [2021-10-28 08:55:59,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64 states, 44 states have (on average 1.4772727272727273) internal successors, (65), 51 states have internal predecessors, (65), 8 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (12), 8 states have call predecessors, (12), 7 states have call successors, (12) [2021-10-28 08:55:59,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 85 transitions. [2021-10-28 08:55:59,452 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 85 transitions. Word has length 18 [2021-10-28 08:55:59,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:55:59,452 INFO L470 AbstractCegarLoop]: Abstraction has 64 states and 85 transitions. [2021-10-28 08:55:59,453 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 6 states have internal predecessors, (16), 3 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-10-28 08:55:59,453 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 85 transitions. [2021-10-28 08:55:59,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-10-28 08:55:59,454 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:55:59,454 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] [2021-10-28 08:55:59,469 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b98adda-b259-42fe-83e6-3ebaf4613865/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-10-28 08:55:59,665 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b98adda-b259-42fe-83e6-3ebaf4613865/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 08:55:59,666 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting entry_pointErr0REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 74 more)] === [2021-10-28 08:55:59,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:55:59,667 INFO L85 PathProgramCache]: Analyzing trace with hash 1630788241, now seen corresponding path program 1 times [2021-10-28 08:55:59,667 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 08:55:59,667 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1559903561] [2021-10-28 08:55:59,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:55:59,668 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 08:55:59,668 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b98adda-b259-42fe-83e6-3ebaf4613865/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 08:55:59,669 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b98adda-b259-42fe-83e6-3ebaf4613865/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 08:55:59,679 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b98adda-b259-42fe-83e6-3ebaf4613865/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-10-28 08:55:59,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:55:59,847 INFO L263 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-28 08:55:59,849 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:55:59,909 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-10-28 08:56:00,071 INFO L354 Elim1Store]: treesize reduction 12, result has 40.0 percent of original size [2021-10-28 08:56:00,071 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 26 [2021-10-28 08:56:00,121 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:56:00,122 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 08:56:00,469 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:56:00,469 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 08:56:00,470 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1559903561] [2021-10-28 08:56:00,470 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1559903561] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-28 08:56:00,470 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 08:56:00,470 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5] total 7 [2021-10-28 08:56:00,471 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [217856213] [2021-10-28 08:56:00,472 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-28 08:56:00,475 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 08:56:00,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-28 08:56:00,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-10-28 08:56:00,477 INFO L87 Difference]: Start difference. First operand 64 states and 85 transitions. Second operand has 8 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 2 states have call successors, (6), 3 states have call predecessors, (6), 4 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2021-10-28 08:56:01,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:56:01,196 INFO L93 Difference]: Finished difference Result 134 states and 158 transitions. [2021-10-28 08:56:01,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-28 08:56:01,196 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 2 states have call successors, (6), 3 states have call predecessors, (6), 4 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) Word has length 23 [2021-10-28 08:56:01,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:56:01,198 INFO L225 Difference]: With dead ends: 134 [2021-10-28 08:56:01,198 INFO L226 Difference]: Without dead ends: 134 [2021-10-28 08:56:01,199 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 34 SyntacticMatches, 6 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=49, Invalid=133, Unknown=0, NotChecked=0, Total=182 [2021-10-28 08:56:01,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2021-10-28 08:56:01,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 76. [2021-10-28 08:56:01,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 55 states have (on average 1.4363636363636363) internal successors, (79), 61 states have internal predecessors, (79), 8 states have call successors, (8), 5 states have call predecessors, (8), 5 states have return successors, (12), 9 states have call predecessors, (12), 7 states have call successors, (12) [2021-10-28 08:56:01,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 99 transitions. [2021-10-28 08:56:01,211 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 99 transitions. Word has length 23 [2021-10-28 08:56:01,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:56:01,211 INFO L470 AbstractCegarLoop]: Abstraction has 76 states and 99 transitions. [2021-10-28 08:56:01,211 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 2 states have call successors, (6), 3 states have call predecessors, (6), 4 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2021-10-28 08:56:01,211 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 99 transitions. [2021-10-28 08:56:01,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-10-28 08:56:01,212 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:56:01,213 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] [2021-10-28 08:56:01,222 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b98adda-b259-42fe-83e6-3ebaf4613865/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-10-28 08:56:01,421 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b98adda-b259-42fe-83e6-3ebaf4613865/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 08:56:01,421 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting entry_pointErr1REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 74 more)] === [2021-10-28 08:56:01,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:56:01,422 INFO L85 PathProgramCache]: Analyzing trace with hash 1630788242, now seen corresponding path program 1 times [2021-10-28 08:56:01,422 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 08:56:01,422 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [428655723] [2021-10-28 08:56:01,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:56:01,422 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 08:56:01,423 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b98adda-b259-42fe-83e6-3ebaf4613865/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 08:56:01,423 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b98adda-b259-42fe-83e6-3ebaf4613865/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 08:56:01,424 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b98adda-b259-42fe-83e6-3ebaf4613865/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-10-28 08:56:01,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:56:01,644 INFO L263 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 18 conjunts are in the unsatisfiable core [2021-10-28 08:56:01,646 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:56:01,701 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-10-28 08:56:01,710 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-10-28 08:56:04,152 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-10-28 08:56:04,153 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 34 [2021-10-28 08:56:04,183 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-10-28 08:56:04,183 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 26 [2021-10-28 08:56:04,303 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:56:04,303 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 08:56:24,810 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 27 [2021-10-28 08:56:25,494 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 25 [2021-10-28 08:56:25,685 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:56:25,685 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 08:56:25,686 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [428655723] [2021-10-28 08:56:25,686 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [428655723] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-28 08:56:25,686 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 08:56:25,686 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 17 [2021-10-28 08:56:25,686 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [808978030] [2021-10-28 08:56:25,687 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-10-28 08:56:25,687 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 08:56:25,688 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-10-28 08:56:25,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=257, Unknown=6, NotChecked=0, Total=306 [2021-10-28 08:56:25,689 INFO L87 Difference]: Start difference. First operand 76 states and 99 transitions. Second operand has 18 states, 15 states have (on average 1.8666666666666667) internal successors, (28), 16 states have internal predecessors, (28), 5 states have call successors, (7), 3 states have call predecessors, (7), 5 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2021-10-28 08:59:20,130 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse0 (bvmul c_entry_point_~i~0 (_ bv4 32)))) (let ((.cse1 (bvadd (_ bv4 32) .cse0 c_entry_point_~array~0.offset))) (and (bvule (bvadd .cse0 c_entry_point_~array~0.offset) .cse1) (= |c_old(#valid)| |c_#valid|) (= |c_#length| |c_old(#length)|) (= c_entry_point_~len~0 (_ bv10 32)) (bvule .cse1 (select |c_#length| c_entry_point_~array~0.base)) (forall ((|v_ldv_malloc_#res.base_31| (_ BitVec 32))) (or (and (let ((.cse2 (bvmul c_entry_point_~i~0 (_ bv4 32)))) (bvule (bvadd .cse2 c_entry_point_~array~0.offset) (bvadd (_ bv4 32) .cse2 c_entry_point_~array~0.offset))) (forall ((v_ldv_malloc_~size_28 (_ BitVec 32))) (bvule (bvadd (_ bv4 32) (bvmul c_entry_point_~i~0 (_ bv4 32)) c_entry_point_~array~0.offset) (select (store |c_#length| |v_ldv_malloc_#res.base_31| v_ldv_malloc_~size_28) c_entry_point_~array~0.base)))) (not (= (_ bv0 1) (bvneg (select |c_#valid| |v_ldv_malloc_#res.base_31|))))))))) is different from false [2021-10-28 09:00:35,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:00:35,501 INFO L93 Difference]: Finished difference Result 256 states and 311 transitions. [2021-10-28 09:00:35,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-10-28 09:00:35,501 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 15 states have (on average 1.8666666666666667) internal successors, (28), 16 states have internal predecessors, (28), 5 states have call successors, (7), 3 states have call predecessors, (7), 5 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Word has length 23 [2021-10-28 09:00:35,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:00:35,505 INFO L225 Difference]: With dead ends: 256 [2021-10-28 09:00:35,505 INFO L226 Difference]: Without dead ends: 256 [2021-10-28 09:00:35,507 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 138 ImplicationChecksByTransitivity, 68.2s TimeCoverageRelationStatistics Valid=185, Invalid=853, Unknown=22, NotChecked=62, Total=1122 [2021-10-28 09:00:35,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 256 states. [2021-10-28 09:00:35,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 256 to 82. [2021-10-28 09:00:35,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82 states, 60 states have (on average 1.4) internal successors, (84), 66 states have internal predecessors, (84), 9 states have call successors, (9), 5 states have call predecessors, (9), 5 states have return successors, (14), 10 states have call predecessors, (14), 8 states have call successors, (14) [2021-10-28 09:00:35,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 107 transitions. [2021-10-28 09:00:35,527 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 107 transitions. Word has length 23 [2021-10-28 09:00:35,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:00:35,528 INFO L470 AbstractCegarLoop]: Abstraction has 82 states and 107 transitions. [2021-10-28 09:00:35,528 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 15 states have (on average 1.8666666666666667) internal successors, (28), 16 states have internal predecessors, (28), 5 states have call successors, (7), 3 states have call predecessors, (7), 5 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2021-10-28 09:00:35,528 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 107 transitions. [2021-10-28 09:00:35,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-10-28 09:00:35,530 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:00:35,530 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] [2021-10-28 09:00:35,546 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b98adda-b259-42fe-83e6-3ebaf4613865/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-10-28 09:00:35,730 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b98adda-b259-42fe-83e6-3ebaf4613865/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 09:00:35,731 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting entry_pointErr0REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 74 more)] === [2021-10-28 09:00:35,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:00:35,731 INFO L85 PathProgramCache]: Analyzing trace with hash 1125229616, now seen corresponding path program 1 times [2021-10-28 09:00:35,732 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 09:00:35,732 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1313254359] [2021-10-28 09:00:35,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:00:35,732 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 09:00:35,732 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b98adda-b259-42fe-83e6-3ebaf4613865/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 09:00:35,733 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b98adda-b259-42fe-83e6-3ebaf4613865/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 09:00:35,751 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b98adda-b259-42fe-83e6-3ebaf4613865/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-10-28 09:00:35,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:00:35,960 INFO L263 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-28 09:00:35,961 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:00:36,113 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:00:36,113 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 09:00:36,283 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-28 09:00:36,283 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 09:00:36,283 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1313254359] [2021-10-28 09:00:36,283 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1313254359] provided 1 perfect and 1 imperfect interpolant sequences [2021-10-28 09:00:36,284 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-28 09:00:36,284 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 5 [2021-10-28 09:00:36,284 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1721115608] [2021-10-28 09:00:36,284 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-28 09:00:36,285 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 09:00:36,285 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-28 09:00:36,285 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-28 09:00:36,286 INFO L87 Difference]: Start difference. First operand 82 states and 107 transitions. Second operand has 5 states, 5 states have (on average 3.0) internal successors, (15), 4 states have internal predecessors, (15), 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) [2021-10-28 09:00:36,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:00:36,341 INFO L93 Difference]: Finished difference Result 58 states and 70 transitions. [2021-10-28 09:00:36,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-28 09:00:36,342 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 4 states have internal predecessors, (15), 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 23 [2021-10-28 09:00:36,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:00:36,343 INFO L225 Difference]: With dead ends: 58 [2021-10-28 09:00:36,343 INFO L226 Difference]: Without dead ends: 54 [2021-10-28 09:00:36,343 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 [2021-10-28 09:00:36,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2021-10-28 09:00:36,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2021-10-28 09:00:36,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 36 states have (on average 1.3888888888888888) internal successors, (50), 42 states have internal predecessors, (50), 7 states have call successors, (7), 5 states have call predecessors, (7), 4 states have return successors, (9), 6 states have call predecessors, (9), 6 states have call successors, (9) [2021-10-28 09:00:36,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 66 transitions. [2021-10-28 09:00:36,351 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 66 transitions. Word has length 23 [2021-10-28 09:00:36,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:00:36,351 INFO L470 AbstractCegarLoop]: Abstraction has 54 states and 66 transitions. [2021-10-28 09:00:36,351 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 4 states have internal predecessors, (15), 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) [2021-10-28 09:00:36,352 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 66 transitions. [2021-10-28 09:00:36,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-10-28 09:00:36,360 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:00:36,360 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] [2021-10-28 09:00:36,374 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b98adda-b259-42fe-83e6-3ebaf4613865/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-10-28 09:00:36,572 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b98adda-b259-42fe-83e6-3ebaf4613865/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 09:00:36,572 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting entry_pointErr3REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 74 more)] === [2021-10-28 09:00:36,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:00:36,573 INFO L85 PathProgramCache]: Analyzing trace with hash -475603747, now seen corresponding path program 1 times [2021-10-28 09:00:36,573 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 09:00:36,573 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [542452226] [2021-10-28 09:00:36,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:00:36,574 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 09:00:36,574 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b98adda-b259-42fe-83e6-3ebaf4613865/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 09:00:36,575 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b98adda-b259-42fe-83e6-3ebaf4613865/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 09:00:36,576 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b98adda-b259-42fe-83e6-3ebaf4613865/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-10-28 09:00:36,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:00:36,775 INFO L263 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 09:00:36,777 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:00:36,897 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-28 09:00:36,897 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 09:00:37,010 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-28 09:00:37,010 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 09:00:37,010 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [542452226] [2021-10-28 09:00:37,010 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [542452226] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 09:00:37,010 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:00:37,011 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-10-28 09:00:37,011 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1455826827] [2021-10-28 09:00:37,011 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-28 09:00:37,011 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 09:00:37,012 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-28 09:00:37,012 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-28 09:00:37,012 INFO L87 Difference]: Start difference. First operand 54 states and 66 transitions. Second operand has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 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) [2021-10-28 09:00:37,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:00:37,092 INFO L93 Difference]: Finished difference Result 90 states and 110 transitions. [2021-10-28 09:00:37,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-28 09:00:37,092 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 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 25 [2021-10-28 09:00:37,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:00:37,093 INFO L225 Difference]: With dead ends: 90 [2021-10-28 09:00:37,093 INFO L226 Difference]: Without dead ends: 90 [2021-10-28 09:00:37,094 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-28 09:00:37,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2021-10-28 09:00:37,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 60. [2021-10-28 09:00:37,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 42 states have (on average 1.3333333333333333) internal successors, (56), 45 states have internal predecessors, (56), 7 states have call successors, (7), 5 states have call predecessors, (7), 4 states have return successors, (9), 9 states have call predecessors, (9), 6 states have call successors, (9) [2021-10-28 09:00:37,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 72 transitions. [2021-10-28 09:00:37,101 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 72 transitions. Word has length 25 [2021-10-28 09:00:37,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:00:37,102 INFO L470 AbstractCegarLoop]: Abstraction has 60 states and 72 transitions. [2021-10-28 09:00:37,102 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 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) [2021-10-28 09:00:37,102 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 72 transitions. [2021-10-28 09:00:37,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-10-28 09:00:37,103 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:00:37,104 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] [2021-10-28 09:00:37,117 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b98adda-b259-42fe-83e6-3ebaf4613865/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-10-28 09:00:37,313 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b98adda-b259-42fe-83e6-3ebaf4613865/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 09:00:37,313 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting entry_pointErr3REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 74 more)] === [2021-10-28 09:00:37,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:00:37,313 INFO L85 PathProgramCache]: Analyzing trace with hash 1267206588, now seen corresponding path program 1 times [2021-10-28 09:00:37,314 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 09:00:37,314 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1919687329] [2021-10-28 09:00:37,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:00:37,314 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 09:00:37,314 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b98adda-b259-42fe-83e6-3ebaf4613865/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 09:00:37,315 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b98adda-b259-42fe-83e6-3ebaf4613865/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 09:00:37,316 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b98adda-b259-42fe-83e6-3ebaf4613865/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-10-28 09:00:37,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:00:37,522 INFO L263 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-28 09:00:37,524 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:00:37,628 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-10-28 09:00:37,628 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 09:00:37,752 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-10-28 09:00:37,752 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 09:00:37,752 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1919687329] [2021-10-28 09:00:37,752 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1919687329] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 09:00:37,752 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:00:37,753 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-10-28 09:00:37,753 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [279082873] [2021-10-28 09:00:37,753 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-28 09:00:37,753 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 09:00:37,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-28 09:00:37,754 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-28 09:00:37,754 INFO L87 Difference]: Start difference. First operand 60 states and 72 transitions. Second operand has 6 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 6 states have internal predecessors, (22), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2021-10-28 09:00:37,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:00:37,840 INFO L93 Difference]: Finished difference Result 64 states and 76 transitions. [2021-10-28 09:00:37,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-28 09:00:37,841 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 6 states have internal predecessors, (22), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 25 [2021-10-28 09:00:37,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:00:37,842 INFO L225 Difference]: With dead ends: 64 [2021-10-28 09:00:37,842 INFO L226 Difference]: Without dead ends: 64 [2021-10-28 09:00:37,842 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-28 09:00:37,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2021-10-28 09:00:37,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 62. [2021-10-28 09:00:37,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 44 states have (on average 1.3181818181818181) internal successors, (58), 47 states have internal predecessors, (58), 7 states have call successors, (7), 5 states have call predecessors, (7), 4 states have return successors, (9), 9 states have call predecessors, (9), 6 states have call successors, (9) [2021-10-28 09:00:37,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 74 transitions. [2021-10-28 09:00:37,847 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 74 transitions. Word has length 25 [2021-10-28 09:00:37,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:00:37,848 INFO L470 AbstractCegarLoop]: Abstraction has 62 states and 74 transitions. [2021-10-28 09:00:37,848 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 6 states have internal predecessors, (22), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2021-10-28 09:00:37,848 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 74 transitions. [2021-10-28 09:00:37,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-10-28 09:00:37,849 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:00:37,849 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, 1, 1] [2021-10-28 09:00:37,861 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b98adda-b259-42fe-83e6-3ebaf4613865/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-10-28 09:00:38,056 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b98adda-b259-42fe-83e6-3ebaf4613865/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 09:00:38,056 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting mainErr0ENSURES_VIOLATIONMEMORY_LEAK === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 74 more)] === [2021-10-28 09:00:38,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:00:38,056 INFO L85 PathProgramCache]: Analyzing trace with hash -1985214815, now seen corresponding path program 1 times [2021-10-28 09:00:38,056 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 09:00:38,057 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [705232362] [2021-10-28 09:00:38,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:00:38,057 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 09:00:38,057 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b98adda-b259-42fe-83e6-3ebaf4613865/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 09:00:38,058 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b98adda-b259-42fe-83e6-3ebaf4613865/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 09:00:38,059 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b98adda-b259-42fe-83e6-3ebaf4613865/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-10-28 09:00:38,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:00:38,297 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:00:38,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:00:38,371 INFO L133 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2021-10-28 09:00:38,372 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-10-28 09:00:38,373 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location mainErr0ENSURES_VIOLATIONMEMORY_LEAK [2021-10-28 09:00:38,374 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_allocErr0REQUIRES_VIOLATION [2021-10-28 09:00:38,374 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_allocErr1REQUIRES_VIOLATION [2021-10-28 09:00:38,375 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kref_initErr0REQUIRES_VIOLATION [2021-10-28 09:00:38,375 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kref_initErr1REQUIRES_VIOLATION [2021-10-28 09:00:38,375 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr0REQUIRES_VIOLATION [2021-10-28 09:00:38,375 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr1REQUIRES_VIOLATION [2021-10-28 09:00:38,375 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr2REQUIRES_VIOLATION [2021-10-28 09:00:38,375 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr3REQUIRES_VIOLATION [2021-10-28 09:00:38,375 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION [2021-10-28 09:00:38,376 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION [2021-10-28 09:00:38,376 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION [2021-10-28 09:00:38,376 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION [2021-10-28 09:00:38,376 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr0REQUIRES_VIOLATION [2021-10-28 09:00:38,376 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr1REQUIRES_VIOLATION [2021-10-28 09:00:38,376 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr2REQUIRES_VIOLATION [2021-10-28 09:00:38,377 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr3REQUIRES_VIOLATION [2021-10-28 09:00:38,377 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr4REQUIRES_VIOLATION [2021-10-28 09:00:38,377 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr5REQUIRES_VIOLATION [2021-10-28 09:00:38,377 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr6REQUIRES_VIOLATION [2021-10-28 09:00:38,377 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr7REQUIRES_VIOLATION [2021-10-28 09:00:38,377 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_set_drvdataErr0REQUIRES_VIOLATION [2021-10-28 09:00:38,377 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_set_drvdataErr1REQUIRES_VIOLATION [2021-10-28 09:00:38,378 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr0REQUIRES_VIOLATION [2021-10-28 09:00:38,378 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr1REQUIRES_VIOLATION [2021-10-28 09:00:38,378 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr2REQUIRES_VIOLATION [2021-10-28 09:00:38,378 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr3REQUIRES_VIOLATION [2021-10-28 09:00:38,378 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr0REQUIRES_VIOLATION [2021-10-28 09:00:38,378 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr1REQUIRES_VIOLATION [2021-10-28 09:00:38,379 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr2REQUIRES_VIOLATION [2021-10-28 09:00:38,379 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr3REQUIRES_VIOLATION [2021-10-28 09:00:38,379 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_addErr0REQUIRES_VIOLATION [2021-10-28 09:00:38,379 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_addErr1REQUIRES_VIOLATION [2021-10-28 09:00:38,379 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr0REQUIRES_VIOLATION [2021-10-28 09:00:38,379 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr1REQUIRES_VIOLATION [2021-10-28 09:00:38,379 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr2REQUIRES_VIOLATION [2021-10-28 09:00:38,380 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr3REQUIRES_VIOLATION [2021-10-28 09:00:38,380 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr4REQUIRES_VIOLATION [2021-10-28 09:00:38,380 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr5REQUIRES_VIOLATION [2021-10-28 09:00:38,380 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_get_drvdataErr0REQUIRES_VIOLATION [2021-10-28 09:00:38,380 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_get_drvdataErr1REQUIRES_VIOLATION [2021-10-28 09:00:38,380 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr0REQUIRES_VIOLATION [2021-10-28 09:00:38,380 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr1REQUIRES_VIOLATION [2021-10-28 09:00:38,397 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 09:00:38,397 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 09:00:38,397 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 09:00:38,397 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 09:00:38,398 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 09:00:38,398 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 09:00:38,398 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr0REQUIRES_VIOLATION [2021-10-28 09:00:38,398 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr1REQUIRES_VIOLATION [2021-10-28 09:00:38,398 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr2REQUIRES_VIOLATION [2021-10-28 09:00:38,398 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr3REQUIRES_VIOLATION [2021-10-28 09:00:38,398 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr4REQUIRES_VIOLATION [2021-10-28 09:00:38,399 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr5REQUIRES_VIOLATION [2021-10-28 09:00:38,399 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr0REQUIRES_VIOLATION [2021-10-28 09:00:38,399 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr1REQUIRES_VIOLATION [2021-10-28 09:00:38,399 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 09:00:38,399 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 09:00:38,399 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 09:00:38,400 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 09:00:38,400 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 09:00:38,400 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 09:00:38,400 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_createErr0REQUIRES_VIOLATION [2021-10-28 09:00:38,400 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_createErr1REQUIRES_VIOLATION [2021-10-28 09:00:38,400 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr0REQUIRES_VIOLATION [2021-10-28 09:00:38,400 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr1REQUIRES_VIOLATION [2021-10-28 09:00:38,401 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr2REQUIRES_VIOLATION [2021-10-28 09:00:38,401 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr3REQUIRES_VIOLATION [2021-10-28 09:00:38,401 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_add_tailErr0REQUIRES_VIOLATION [2021-10-28 09:00:38,401 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_add_tailErr1REQUIRES_VIOLATION [2021-10-28 09:00:38,401 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr0REQUIRES_VIOLATION [2021-10-28 09:00:38,401 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr1REQUIRES_VIOLATION [2021-10-28 09:00:38,402 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr2REQUIRES_VIOLATION [2021-10-28 09:00:38,402 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr3REQUIRES_VIOLATION [2021-10-28 09:00:38,402 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 09:00:38,402 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr5ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 09:00:38,402 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr6ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 09:00:38,430 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b98adda-b259-42fe-83e6-3ebaf4613865/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-10-28 09:00:38,614 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b98adda-b259-42fe-83e6-3ebaf4613865/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 09:00:38,617 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:00:38,621 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-28 09:00:38,630 WARN L418 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2021-10-28 09:00:38,654 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 09:00:38 BoogieIcfgContainer [2021-10-28 09:00:38,654 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-28 09:00:38,654 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 09:00:38,654 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 09:00:38,655 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 09:00:38,655 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 08:55:56" (3/4) ... [2021-10-28 09:00:38,658 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-28 09:00:38,658 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 09:00:38,659 INFO L168 Benchmark]: Toolchain (without parser) took 284661.15 ms. Allocated memory was 58.7 MB in the beginning and 113.2 MB in the end (delta: 54.5 MB). Free memory was 34.1 MB in the beginning and 75.6 MB in the end (delta: -41.4 MB). Peak memory consumption was 13.1 MB. Max. memory is 16.1 GB. [2021-10-28 09:00:38,659 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 58.7 MB. Free memory is still 38.5 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 09:00:38,660 INFO L168 Benchmark]: CACSL2BoogieTranslator took 996.93 ms. Allocated memory was 58.7 MB in the beginning and 88.1 MB in the end (delta: 29.4 MB). Free memory was 33.9 MB in the beginning and 52.7 MB in the end (delta: -18.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-28 09:00:38,660 INFO L168 Benchmark]: Boogie Preprocessor took 193.82 ms. Allocated memory is still 88.1 MB. Free memory was 52.6 MB in the beginning and 68.2 MB in the end (delta: -15.6 MB). Peak memory consumption was 10.9 MB. Max. memory is 16.1 GB. [2021-10-28 09:00:38,663 INFO L168 Benchmark]: RCFGBuilder took 1744.28 ms. Allocated memory is still 88.1 MB. Free memory was 68.2 MB in the beginning and 46.1 MB in the end (delta: 22.1 MB). Peak memory consumption was 30.0 MB. Max. memory is 16.1 GB. [2021-10-28 09:00:38,664 INFO L168 Benchmark]: TraceAbstraction took 281712.55 ms. Allocated memory was 88.1 MB in the beginning and 113.2 MB in the end (delta: 25.2 MB). Free memory was 45.6 MB in the beginning and 75.6 MB in the end (delta: -29.9 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 09:00:38,664 INFO L168 Benchmark]: Witness Printer took 3.75 ms. Allocated memory is still 113.2 MB. Free memory is still 75.6 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 09:00:38,669 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 58.7 MB. Free memory is still 38.5 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 996.93 ms. Allocated memory was 58.7 MB in the beginning and 88.1 MB in the end (delta: 29.4 MB). Free memory was 33.9 MB in the beginning and 52.7 MB in the end (delta: -18.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 193.82 ms. Allocated memory is still 88.1 MB. Free memory was 52.6 MB in the beginning and 68.2 MB in the end (delta: -15.6 MB). Peak memory consumption was 10.9 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1744.28 ms. Allocated memory is still 88.1 MB. Free memory was 68.2 MB in the beginning and 46.1 MB in the end (delta: 22.1 MB). Peak memory consumption was 30.0 MB. Max. memory is 16.1 GB. * TraceAbstraction took 281712.55 ms. Allocated memory was 88.1 MB in the beginning and 113.2 MB in the end (delta: 25.2 MB). Free memory was 45.6 MB in the beginning and 75.6 MB in the end (delta: -29.9 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 3.75 ms. Allocated memory is still 113.2 MB. Free memory is still 75.6 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.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * 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: 778]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 778. Possible FailurePath: [L569] struct ldv_list_head ldv_global_msg_list = { &(ldv_global_msg_list), &(ldv_global_msg_list) }; VAL [\old(ldv_global_msg_list)=null, \old(ldv_global_msg_list)=null, ldv_global_msg_list={-2147483648:0}] [L779] CALL entry_point() VAL [ldv_global_msg_list={-2147483648:0}] [L761] int len = 10; VAL [ldv_global_msg_list={-2147483648:0}, len=10] [L762] CALL, EXPR ldv_malloc(sizeof(struct A18*)*len) VAL [\old(size)=40, ldv_global_msg_list={-2147483648:0}] [L526] COND TRUE __VERIFIER_nondet_int() [L527] return malloc(size); [L762] RET, EXPR ldv_malloc(sizeof(struct A18*)*len) VAL [ldv_global_msg_list={-2147483648:0}, ldv_malloc(sizeof(struct A18*)*len)={1:0}, len=10] [L762] struct A18 **array = (struct A18 **)ldv_malloc(sizeof(struct A18*)*len); [L763] struct A18 *p; [L764] int i=0; [L765] int j; VAL [array={1:0}, i=0, ldv_global_msg_list={-2147483648:0}, len=10] [L766] COND FALSE !(!array) VAL [array={1:0}, i=0, ldv_global_msg_list={-2147483648:0}, len=10] [L767] COND TRUE i=0) VAL [array={1:0}, i=0, j=4294967295, ldv_global_msg_list={-2147483648:0}, len=10, p={0:0}] [L779] RET entry_point() VAL [ldv_global_msg_list={-2147483648:0}] - 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: 770]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 770]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 774]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 774]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 774]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 774]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 774]: 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, 351 locations, 78 error locations. Started 1 CEGAR loops. OverallTime: 281.6s, OverallIterations: 9, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 251.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 379 SDtfs, 681 SDslu, 1142 SDs, 0 SdLazy, 867 SolverSat, 137 SolverUnsat, 93 SolverUnknown, 0 SolverNotchecked, 197.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 360 GetRequests, 289 SyntacticMatches, 6 SemanticMatches, 65 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 155 ImplicationChecksByTransitivity, 68.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=111occurred in iteration=0, InterpolantAutomatonStates: 65, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 8 MinimizatonAttempts, 331 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 26.2s InterpolantComputationTime, 198 NumberOfCodeBlocks, 198 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 326 ConstructedInterpolants, 19 QuantifiedInterpolants, 1576 SizeOfPredicates, 12 NumberOfNonLiveVariables, 719 ConjunctsInSsa, 52 ConjunctsInUnsatCore, 16 InterpolantComputations, 11 PerfectInterpolantSequences, 28/40 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-10-28 09:00:38,760 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b98adda-b259-42fe-83e6-3ebaf4613865/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...