./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/ldv-memsafety/memleaks_test10-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version e943c265 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19c86ef6-c926-42c5-95ef-aa28594bc139/bin/uautomizer-j4sWxH34Be/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19c86ef6-c926-42c5-95ef-aa28594bc139/bin/uautomizer-j4sWxH34Be/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19c86ef6-c926-42c5-95ef-aa28594bc139/bin/uautomizer-j4sWxH34Be/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19c86ef6-c926-42c5-95ef-aa28594bc139/bin/uautomizer-j4sWxH34Be/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test10-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19c86ef6-c926-42c5-95ef-aa28594bc139/bin/uautomizer-j4sWxH34Be/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19c86ef6-c926-42c5-95ef-aa28594bc139/bin/uautomizer-j4sWxH34Be --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 207ea7efa81a205528159a2c1c5225b996f0eb4901bda418907cbc964f19b86c ................................................................................................................................... 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_19c86ef6-c926-42c5-95ef-aa28594bc139/bin/uautomizer-j4sWxH34Be/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19c86ef6-c926-42c5-95ef-aa28594bc139/bin/uautomizer-j4sWxH34Be/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19c86ef6-c926-42c5-95ef-aa28594bc139/bin/uautomizer-j4sWxH34Be/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19c86ef6-c926-42c5-95ef-aa28594bc139/bin/uautomizer-j4sWxH34Be/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test10-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19c86ef6-c926-42c5-95ef-aa28594bc139/bin/uautomizer-j4sWxH34Be/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19c86ef6-c926-42c5-95ef-aa28594bc139/bin/uautomizer-j4sWxH34Be --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 207ea7efa81a205528159a2c1c5225b996f0eb4901bda418907cbc964f19b86c ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN --- Real Ultimate output --- This is Ultimate 0.2.1-dev-e943c26 [2021-10-21 20:25:32,325 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-21 20:25:32,329 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-21 20:25:32,404 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-21 20:25:32,404 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-21 20:25:32,411 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-21 20:25:32,414 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-21 20:25:32,419 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-21 20:25:32,423 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-21 20:25:32,432 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-21 20:25:32,434 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-21 20:25:32,436 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-21 20:25:32,437 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-21 20:25:32,440 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-21 20:25:32,443 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-21 20:25:32,450 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-21 20:25:32,452 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-21 20:25:32,453 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-21 20:25:32,456 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-21 20:25:32,468 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-21 20:25:32,471 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-21 20:25:32,473 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-21 20:25:32,477 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-21 20:25:32,478 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-21 20:25:32,483 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-21 20:25:32,484 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-21 20:25:32,484 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-21 20:25:32,487 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-21 20:25:32,488 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-21 20:25:32,490 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-21 20:25:32,490 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-21 20:25:32,491 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-21 20:25:32,494 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-21 20:25:32,496 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-21 20:25:32,498 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-21 20:25:32,498 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-21 20:25:32,499 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-21 20:25:32,499 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-21 20:25:32,500 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-21 20:25:32,501 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-21 20:25:32,502 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-21 20:25:32,503 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19c86ef6-c926-42c5-95ef-aa28594bc139/bin/uautomizer-j4sWxH34Be/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2021-10-21 20:25:32,560 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-21 20:25:32,560 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-21 20:25:32,561 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-21 20:25:32,562 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-21 20:25:32,570 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-21 20:25:32,571 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-21 20:25:32,572 INFO L138 SettingsManager]: * Use SBE=true [2021-10-21 20:25:32,572 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-21 20:25:32,572 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-21 20:25:32,573 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-21 20:25:32,574 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-21 20:25:32,574 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-21 20:25:32,575 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-21 20:25:32,575 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-10-21 20:25:32,575 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-10-21 20:25:32,576 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-10-21 20:25:32,576 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-21 20:25:32,576 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-21 20:25:32,576 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-21 20:25:32,577 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-21 20:25:32,577 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-21 20:25:32,577 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-21 20:25:32,578 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-21 20:25:32,578 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-21 20:25:32,578 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-21 20:25:32,579 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-21 20:25:32,579 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-21 20:25:32,579 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-21 20:25:32,580 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-21 20:25:32,582 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_19c86ef6-c926-42c5-95ef-aa28594bc139/bin/uautomizer-j4sWxH34Be/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19c86ef6-c926-42c5-95ef-aa28594bc139/bin/uautomizer-j4sWxH34Be Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 207ea7efa81a205528159a2c1c5225b996f0eb4901bda418907cbc964f19b86c [2021-10-21 20:25:32,929 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-21 20:25:32,967 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-21 20:25:32,969 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-21 20:25:32,971 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-21 20:25:32,972 INFO L275 PluginConnector]: CDTParser initialized [2021-10-21 20:25:32,973 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19c86ef6-c926-42c5-95ef-aa28594bc139/bin/uautomizer-j4sWxH34Be/../../sv-benchmarks/c/ldv-memsafety/memleaks_test10-1.i [2021-10-21 20:25:33,046 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19c86ef6-c926-42c5-95ef-aa28594bc139/bin/uautomizer-j4sWxH34Be/data/86fa6a3ca/abd3f8ffa65245648dc51493e5d6958e/FLAG10e035ca1 [2021-10-21 20:25:33,830 INFO L306 CDTParser]: Found 1 translation units. [2021-10-21 20:25:33,830 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19c86ef6-c926-42c5-95ef-aa28594bc139/sv-benchmarks/c/ldv-memsafety/memleaks_test10-1.i [2021-10-21 20:25:33,863 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19c86ef6-c926-42c5-95ef-aa28594bc139/bin/uautomizer-j4sWxH34Be/data/86fa6a3ca/abd3f8ffa65245648dc51493e5d6958e/FLAG10e035ca1 [2021-10-21 20:25:34,041 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19c86ef6-c926-42c5-95ef-aa28594bc139/bin/uautomizer-j4sWxH34Be/data/86fa6a3ca/abd3f8ffa65245648dc51493e5d6958e [2021-10-21 20:25:34,053 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-21 20:25:34,055 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-10-21 20:25:34,058 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-21 20:25:34,058 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-21 20:25:34,075 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-21 20:25:34,076 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 08:25:34" (1/1) ... [2021-10-21 20:25:34,078 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@47d204e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:25:34, skipping insertion in model container [2021-10-21 20:25:34,078 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 08:25:34" (1/1) ... [2021-10-21 20:25:34,090 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-21 20:25:34,139 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-21 20:25:34,808 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 20:25:34,841 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) [2021-10-21 20:25:34,842 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@62e57558 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:25:34, skipping insertion in model container [2021-10-21 20:25:34,842 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-21 20:25:34,843 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.preprocessor [2021-10-21 20:25:34,847 INFO L168 Benchmark]: Toolchain (without parser) took 789.21 ms. Allocated memory is still 113.2 MB. Free memory was 71.2 MB in the beginning and 81.3 MB in the end (delta: -10.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-21 20:25:34,848 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 113.2 MB. Free memory is still 89.0 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 20:25:34,850 INFO L168 Benchmark]: CACSL2BoogieTranslator took 785.81 ms. Allocated memory is still 113.2 MB. Free memory was 71.0 MB in the beginning and 81.3 MB in the end (delta: -10.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-21 20:25:34,853 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 113.2 MB. Free memory is still 89.0 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 785.81 ms. Allocated memory is still 113.2 MB. Free memory was 71.0 MB in the beginning and 81.3 MB in the end (delta: -10.4 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-e943c26 [2021-10-21 20:25:37,466 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-21 20:25:37,470 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-21 20:25:37,550 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-21 20:25:37,551 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-21 20:25:37,556 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-21 20:25:37,558 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-21 20:25:37,569 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-21 20:25:37,572 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-21 20:25:37,578 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-21 20:25:37,580 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-21 20:25:37,583 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-21 20:25:37,583 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-21 20:25:37,586 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-21 20:25:37,589 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-21 20:25:37,595 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-21 20:25:37,597 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-21 20:25:37,598 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-21 20:25:37,601 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-21 20:25:37,607 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-21 20:25:37,609 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-21 20:25:37,614 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-21 20:25:37,617 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-21 20:25:37,620 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-21 20:25:37,630 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-21 20:25:37,631 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-21 20:25:37,632 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-21 20:25:37,634 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-21 20:25:37,635 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-21 20:25:37,636 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-21 20:25:37,637 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-21 20:25:37,638 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-21 20:25:37,640 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-21 20:25:37,641 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-21 20:25:37,643 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-21 20:25:37,643 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-21 20:25:37,645 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-21 20:25:37,645 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-21 20:25:37,645 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-21 20:25:37,647 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-21 20:25:37,649 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-21 20:25:37,655 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19c86ef6-c926-42c5-95ef-aa28594bc139/bin/uautomizer-j4sWxH34Be/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2021-10-21 20:25:37,710 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-21 20:25:37,710 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-21 20:25:37,711 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-21 20:25:37,711 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-21 20:25:37,714 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-21 20:25:37,714 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-21 20:25:37,715 INFO L138 SettingsManager]: * Use SBE=true [2021-10-21 20:25:37,715 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-21 20:25:37,715 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-21 20:25:37,716 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-21 20:25:37,717 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-21 20:25:37,718 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-21 20:25:37,718 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-21 20:25:37,718 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-10-21 20:25:37,719 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-10-21 20:25:37,719 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-10-21 20:25:37,719 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-21 20:25:37,719 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-21 20:25:37,720 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-21 20:25:37,720 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-21 20:25:37,720 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-21 20:25:37,721 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-21 20:25:37,721 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-21 20:25:37,721 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-21 20:25:37,721 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-21 20:25:37,722 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-21 20:25:37,722 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-21 20:25:37,723 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-21 20:25:37,723 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-10-21 20:25:37,723 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-21 20:25:37,724 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-21 20:25:37,724 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-21 20:25:37,724 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_19c86ef6-c926-42c5-95ef-aa28594bc139/bin/uautomizer-j4sWxH34Be/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19c86ef6-c926-42c5-95ef-aa28594bc139/bin/uautomizer-j4sWxH34Be Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 207ea7efa81a205528159a2c1c5225b996f0eb4901bda418907cbc964f19b86c [2021-10-21 20:25:38,295 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-21 20:25:38,335 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-21 20:25:38,339 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-21 20:25:38,341 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-21 20:25:38,341 INFO L275 PluginConnector]: CDTParser initialized [2021-10-21 20:25:38,343 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19c86ef6-c926-42c5-95ef-aa28594bc139/bin/uautomizer-j4sWxH34Be/../../sv-benchmarks/c/ldv-memsafety/memleaks_test10-1.i [2021-10-21 20:25:38,420 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19c86ef6-c926-42c5-95ef-aa28594bc139/bin/uautomizer-j4sWxH34Be/data/fdc41efb1/58d50bff9d3e4f8daaeaa7692a1295f2/FLAGad9eb7a7a [2021-10-21 20:25:39,242 INFO L306 CDTParser]: Found 1 translation units. [2021-10-21 20:25:39,243 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19c86ef6-c926-42c5-95ef-aa28594bc139/sv-benchmarks/c/ldv-memsafety/memleaks_test10-1.i [2021-10-21 20:25:39,262 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19c86ef6-c926-42c5-95ef-aa28594bc139/bin/uautomizer-j4sWxH34Be/data/fdc41efb1/58d50bff9d3e4f8daaeaa7692a1295f2/FLAGad9eb7a7a [2021-10-21 20:25:39,428 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19c86ef6-c926-42c5-95ef-aa28594bc139/bin/uautomizer-j4sWxH34Be/data/fdc41efb1/58d50bff9d3e4f8daaeaa7692a1295f2 [2021-10-21 20:25:39,431 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-21 20:25:39,433 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-10-21 20:25:39,437 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-21 20:25:39,439 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-21 20:25:39,443 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-21 20:25:39,444 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 08:25:39" (1/1) ... [2021-10-21 20:25:39,446 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d219933 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:25:39, skipping insertion in model container [2021-10-21 20:25:39,446 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 08:25:39" (1/1) ... [2021-10-21 20:25:39,454 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-21 20:25:39,504 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-21 20:25:40,076 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 20:25:40,104 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-10-21 20:25:40,119 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-21 20:25:40,203 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 20:25:40,215 INFO L203 MainTranslator]: Completed pre-run [2021-10-21 20:25:40,278 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 20:25:40,334 INFO L208 MainTranslator]: Completed translation [2021-10-21 20:25:40,335 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:25:40 WrapperNode [2021-10-21 20:25:40,335 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-21 20:25:40,337 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-21 20:25:40,337 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-21 20:25:40,337 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-21 20:25:40,352 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:25:40" (1/1) ... [2021-10-21 20:25:40,353 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:25:40" (1/1) ... [2021-10-21 20:25:40,414 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:25:40" (1/1) ... [2021-10-21 20:25:40,420 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:25:40" (1/1) ... [2021-10-21 20:25:40,481 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:25:40" (1/1) ... [2021-10-21 20:25:40,488 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:25:40" (1/1) ... [2021-10-21 20:25:40,507 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:25:40" (1/1) ... [2021-10-21 20:25:40,520 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-21 20:25:40,531 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-21 20:25:40,531 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-21 20:25:40,531 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-21 20:25:40,532 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:25:40" (1/1) ... [2021-10-21 20:25:40,542 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-21 20:25:40,557 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19c86ef6-c926-42c5-95ef-aa28594bc139/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:25:40,576 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19c86ef6-c926-42c5-95ef-aa28594bc139/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-21 20:25:40,579 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19c86ef6-c926-42c5-95ef-aa28594bc139/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-21 20:25:40,626 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-10-21 20:25:40,628 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-21 20:25:40,628 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-10-21 20:25:40,628 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.setCurrentRoundingMode [2021-10-21 20:25:40,628 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2021-10-21 20:25:40,631 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2021-10-21 20:25:40,632 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2021-10-21 20:25:40,632 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2021-10-21 20:25:40,632 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2021-10-21 20:25:40,632 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_nonpositive [2021-10-21 20:25:40,633 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_positive [2021-10-21 20:25:40,633 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-10-21 20:25:40,633 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-10-21 20:25:40,633 INFO L138 BoogieDeclarations]: Found implementation of procedure LDV_INIT_LIST_HEAD [2021-10-21 20:25:40,637 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2021-10-21 20:25:40,637 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_del [2021-10-21 20:25:40,637 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add [2021-10-21 20:25:40,637 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add_tail [2021-10-21 20:25:40,638 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_del [2021-10-21 20:25:40,638 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_alloc [2021-10-21 20:25:40,638 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_fill [2021-10-21 20:25:40,638 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_free [2021-10-21 20:25:40,638 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_msg [2021-10-21 20:25:40,638 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_destroy_msgs [2021-10-21 20:25:40,638 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2021-10-21 20:25:40,638 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-10-21 20:25:40,638 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_add_return [2021-10-21 20:25:40,639 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_sub_return [2021-10-21 20:25:40,639 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_sub [2021-10-21 20:25:40,639 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_init [2021-10-21 20:25:40,639 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_get [2021-10-21 20:25:40,639 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_put [2021-10-21 20:25:40,639 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_del [2021-10-21 20:25:40,639 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_cleanup [2021-10-21 20:25:40,639 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_release [2021-10-21 20:25:40,639 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_put [2021-10-21 20:25:40,639 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_get [2021-10-21 20:25:40,640 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init_internal [2021-10-21 20:25:40,640 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init [2021-10-21 20:25:40,640 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_create [2021-10-21 20:25:40,640 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2021-10-21 20:25:40,640 INFO L138 BoogieDeclarations]: Found implementation of procedure g [2021-10-21 20:25:40,640 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_10 [2021-10-21 20:25:40,640 INFO L138 BoogieDeclarations]: Found implementation of procedure free_10 [2021-10-21 20:25:40,641 INFO L138 BoogieDeclarations]: Found implementation of procedure entry_point [2021-10-21 20:25:40,641 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-10-21 20:25:40,641 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-10-21 20:25:40,641 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-10-21 20:25:40,642 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-10-21 20:25:40,642 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2021-10-21 20:25:40,642 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2021-10-21 20:25:40,642 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2021-10-21 20:25:40,642 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2021-10-21 20:25:40,643 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2021-10-21 20:25:40,660 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2021-10-21 20:25:40,660 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2021-10-21 20:25:40,661 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2021-10-21 20:25:40,661 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2021-10-21 20:25:40,661 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2021-10-21 20:25:40,661 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2021-10-21 20:25:40,662 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2021-10-21 20:25:40,662 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2021-10-21 20:25:40,662 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2021-10-21 20:25:40,662 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2021-10-21 20:25:40,662 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2021-10-21 20:25:40,663 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2021-10-21 20:25:40,663 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2021-10-21 20:25:40,663 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2021-10-21 20:25:40,663 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2021-10-21 20:25:40,664 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2021-10-21 20:25:40,664 INFO L130 BoogieDeclarations]: Found specification of procedure select [2021-10-21 20:25:40,664 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2021-10-21 20:25:40,664 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2021-10-21 20:25:40,665 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2021-10-21 20:25:40,665 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2021-10-21 20:25:40,665 INFO L130 BoogieDeclarations]: Found specification of procedure random [2021-10-21 20:25:40,665 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2021-10-21 20:25:40,665 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2021-10-21 20:25:40,666 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2021-10-21 20:25:40,666 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2021-10-21 20:25:40,666 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2021-10-21 20:25:40,666 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2021-10-21 20:25:40,667 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2021-10-21 20:25:40,667 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2021-10-21 20:25:40,667 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2021-10-21 20:25:40,667 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2021-10-21 20:25:40,668 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2021-10-21 20:25:40,668 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2021-10-21 20:25:40,668 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2021-10-21 20:25:40,668 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2021-10-21 20:25:40,668 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2021-10-21 20:25:40,669 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2021-10-21 20:25:40,669 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2021-10-21 20:25:40,669 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2021-10-21 20:25:40,669 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2021-10-21 20:25:40,670 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2021-10-21 20:25:40,670 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2021-10-21 20:25:40,670 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2021-10-21 20:25:40,670 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2021-10-21 20:25:40,670 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2021-10-21 20:25:40,671 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2021-10-21 20:25:40,671 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2021-10-21 20:25:40,671 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2021-10-21 20:25:40,671 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2021-10-21 20:25:40,672 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2021-10-21 20:25:40,672 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2021-10-21 20:25:40,672 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2021-10-21 20:25:40,672 INFO L130 BoogieDeclarations]: Found specification of procedure free [2021-10-21 20:25:40,672 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2021-10-21 20:25:40,673 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2021-10-21 20:25:40,673 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2021-10-21 20:25:40,673 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2021-10-21 20:25:40,673 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-10-21 20:25:40,674 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2021-10-21 20:25:40,674 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2021-10-21 20:25:40,674 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2021-10-21 20:25:40,674 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2021-10-21 20:25:40,675 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2021-10-21 20:25:40,675 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2021-10-21 20:25:40,675 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2021-10-21 20:25:40,675 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2021-10-21 20:25:40,676 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2021-10-21 20:25:40,676 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2021-10-21 20:25:40,676 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2021-10-21 20:25:40,676 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2021-10-21 20:25:40,677 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2021-10-21 20:25:40,677 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2021-10-21 20:25:40,677 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2021-10-21 20:25:40,677 INFO L130 BoogieDeclarations]: Found specification of procedure system [2021-10-21 20:25:40,677 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2021-10-21 20:25:40,678 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2021-10-21 20:25:40,678 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2021-10-21 20:25:40,678 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2021-10-21 20:25:40,678 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2021-10-21 20:25:40,679 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2021-10-21 20:25:40,679 INFO L130 BoogieDeclarations]: Found specification of procedure div [2021-10-21 20:25:40,679 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2021-10-21 20:25:40,679 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2021-10-21 20:25:40,680 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2021-10-21 20:25:40,680 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2021-10-21 20:25:40,680 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2021-10-21 20:25:40,680 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2021-10-21 20:25:40,680 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2021-10-21 20:25:40,681 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2021-10-21 20:25:40,681 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2021-10-21 20:25:40,681 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2021-10-21 20:25:40,681 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2021-10-21 20:25:40,682 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2021-10-21 20:25:40,682 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2021-10-21 20:25:40,682 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2021-10-21 20:25:40,682 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2021-10-21 20:25:40,682 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2021-10-21 20:25:40,683 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2021-10-21 20:25:40,683 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2021-10-21 20:25:40,683 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2021-10-21 20:25:40,683 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2021-10-21 20:25:40,684 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-10-21 20:25:40,684 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-10-21 20:25:40,684 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_nonpositive [2021-10-21 20:25:40,684 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_positive [2021-10-21 20:25:40,684 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2021-10-21 20:25:40,685 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2021-10-21 20:25:40,685 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-10-21 20:25:40,685 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-21 20:25:40,685 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-10-21 20:25:40,686 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-10-21 20:25:40,686 INFO L130 BoogieDeclarations]: Found specification of procedure LDV_INIT_LIST_HEAD [2021-10-21 20:25:40,686 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-10-21 20:25:40,686 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2021-10-21 20:25:40,686 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_del [2021-10-21 20:25:40,687 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add [2021-10-21 20:25:40,687 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-10-21 20:25:40,687 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add_tail [2021-10-21 20:25:40,687 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_del [2021-10-21 20:25:40,688 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_alloc [2021-10-21 20:25:40,688 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_fill [2021-10-21 20:25:40,688 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-10-21 20:25:40,688 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_free [2021-10-21 20:25:40,689 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-21 20:25:40,689 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_msg [2021-10-21 20:25:40,689 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_destroy_msgs [2021-10-21 20:25:40,689 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2021-10-21 20:25:40,689 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-10-21 20:25:40,690 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_add_return [2021-10-21 20:25:40,690 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-10-21 20:25:40,690 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-10-21 20:25:40,690 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_sub_return [2021-10-21 20:25:40,691 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_sub [2021-10-21 20:25:40,691 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-10-21 20:25:40,691 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_init [2021-10-21 20:25:40,691 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_get [2021-10-21 20:25:40,691 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_put [2021-10-21 20:25:40,692 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_del [2021-10-21 20:25:40,692 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_cleanup [2021-10-21 20:25:40,692 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_release [2021-10-21 20:25:40,692 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_put [2021-10-21 20:25:40,693 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_get [2021-10-21 20:25:40,693 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init_internal [2021-10-21 20:25:40,693 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init [2021-10-21 20:25:40,693 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_create [2021-10-21 20:25:40,693 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-10-21 20:25:40,694 INFO L130 BoogieDeclarations]: Found specification of procedure f [2021-10-21 20:25:40,694 INFO L130 BoogieDeclarations]: Found specification of procedure g [2021-10-21 20:25:40,694 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_10 [2021-10-21 20:25:40,694 INFO L130 BoogieDeclarations]: Found specification of procedure free_10 [2021-10-21 20:25:40,695 INFO L130 BoogieDeclarations]: Found specification of procedure entry_point [2021-10-21 20:25:40,695 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-10-21 20:25:40,695 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-10-21 20:25:40,695 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-21 20:25:40,695 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-10-21 20:25:40,696 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-21 20:25:40,696 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.setCurrentRoundingMode [2021-10-21 20:25:40,696 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-10-21 20:25:40,696 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2021-10-21 20:25:40,696 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-10-21 20:25:40,697 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-10-21 20:25:41,372 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-21 20:25:41,845 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-21 20:25:42,369 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-21 20:25:42,369 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-10-21 20:25:42,373 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 08:25:42 BoogieIcfgContainer [2021-10-21 20:25:42,373 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-21 20:25:42,375 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-21 20:25:42,375 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-21 20:25:42,379 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-21 20:25:42,379 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.10 08:25:39" (1/3) ... [2021-10-21 20:25:42,380 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70e80e42 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 08:25:42, skipping insertion in model container [2021-10-21 20:25:42,380 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:25:40" (2/3) ... [2021-10-21 20:25:42,381 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70e80e42 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 08:25:42, skipping insertion in model container [2021-10-21 20:25:42,381 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 08:25:42" (3/3) ... [2021-10-21 20:25:42,383 INFO L111 eAbstractionObserver]: Analyzing ICFG memleaks_test10-1.i [2021-10-21 20:25:42,389 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-21 20:25:42,390 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 113 error locations. [2021-10-21 20:25:42,444 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-21 20:25:42,452 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 [2021-10-21 20:25:42,452 INFO L340 AbstractCegarLoop]: Starting to check reachability of 113 error locations. [2021-10-21 20:25:42,497 INFO L276 IsEmpty]: Start isEmpty. Operand has 156 states, 78 states have (on average 1.7692307692307692) internal successors, (138), 129 states have internal predecessors, (138), 15 states have call successors, (15), 11 states have call predecessors, (15), 11 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2021-10-21 20:25:42,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-21 20:25:42,515 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 20:25:42,516 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 20:25:42,517 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 109 more)] === [2021-10-21 20:25:42,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:25:42,524 INFO L82 PathProgramCache]: Analyzing trace with hash 2162883, now seen corresponding path program 1 times [2021-10-21 20:25:42,539 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-21 20:25:42,540 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [611837792] [2021-10-21 20:25:42,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:25:42,541 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-21 20:25:42,541 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19c86ef6-c926-42c5-95ef-aa28594bc139/bin/uautomizer-j4sWxH34Be/mathsat [2021-10-21 20:25:42,548 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19c86ef6-c926-42c5-95ef-aa28594bc139/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-21 20:25:42,560 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19c86ef6-c926-42c5-95ef-aa28594bc139/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-21 20:25:42,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:25:42,771 INFO L263 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-21 20:25:42,777 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:25:42,914 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:25:42,914 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-21 20:25:43,025 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:25:43,027 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-21 20:25:43,027 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [611837792] [2021-10-21 20:25:43,028 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [611837792] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-21 20:25:43,028 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-21 20:25:43,028 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-10-21 20:25:43,031 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [764510479] [2021-10-21 20:25:43,037 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-21 20:25:43,037 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-21 20:25:43,054 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-21 20:25:43,055 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-21 20:25:43,059 INFO L87 Difference]: Start difference. First operand has 156 states, 78 states have (on average 1.7692307692307692) internal successors, (138), 129 states have internal predecessors, (138), 15 states have call successors, (15), 11 states have call predecessors, (15), 11 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) Second operand has 5 states, 5 states have (on average 1.8) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (4), 1 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2021-10-21 20:25:43,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:25:43,375 INFO L93 Difference]: Finished difference Result 143 states and 160 transitions. [2021-10-21 20:25:43,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-21 20:25:43,378 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 1.8) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (4), 1 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) Word has length 16 [2021-10-21 20:25:43,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 20:25:43,397 INFO L225 Difference]: With dead ends: 143 [2021-10-21 20:25:43,397 INFO L226 Difference]: Without dead ends: 140 [2021-10-21 20:25:43,399 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 19.7ms TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-21 20:25:43,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2021-10-21 20:25:43,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 87. [2021-10-21 20:25:43,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 40 states have (on average 1.925) internal successors, (77), 73 states have internal predecessors, (77), 8 states have call successors, (8), 5 states have call predecessors, (8), 5 states have return successors, (11), 8 states have call predecessors, (11), 7 states have call successors, (11) [2021-10-21 20:25:43,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 96 transitions. [2021-10-21 20:25:43,484 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 96 transitions. Word has length 16 [2021-10-21 20:25:43,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 20:25:43,485 INFO L470 AbstractCegarLoop]: Abstraction has 87 states and 96 transitions. [2021-10-21 20:25:43,486 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1.8) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (4), 1 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2021-10-21 20:25:43,486 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 96 transitions. [2021-10-21 20:25:43,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-21 20:25:43,489 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 20:25:43,489 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 20:25:43,503 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19c86ef6-c926-42c5-95ef-aa28594bc139/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-21 20:25:43,702 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19c86ef6-c926-42c5-95ef-aa28594bc139/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 [2021-10-21 20:25:43,703 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 109 more)] === [2021-10-21 20:25:43,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:25:43,708 INFO L82 PathProgramCache]: Analyzing trace with hash 1744973218, now seen corresponding path program 1 times [2021-10-21 20:25:43,709 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-21 20:25:43,711 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1869348010] [2021-10-21 20:25:43,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:25:43,712 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-21 20:25:43,712 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19c86ef6-c926-42c5-95ef-aa28594bc139/bin/uautomizer-j4sWxH34Be/mathsat [2021-10-21 20:25:43,714 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19c86ef6-c926-42c5-95ef-aa28594bc139/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-21 20:25:43,760 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19c86ef6-c926-42c5-95ef-aa28594bc139/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-21 20:25:43,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:25:43,919 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-21 20:25:43,924 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:25:44,013 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:25:44,014 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-21 20:25:44,165 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:25:44,167 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-21 20:25:44,167 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1869348010] [2021-10-21 20:25:44,168 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1869348010] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-21 20:25:44,168 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-21 20:25:44,168 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-10-21 20:25:44,169 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [749838594] [2021-10-21 20:25:44,176 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-21 20:25:44,176 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-21 20:25:44,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 20:25:44,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 20:25:44,180 INFO L87 Difference]: Start difference. First operand 87 states and 96 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-10-21 20:25:44,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:25:44,478 INFO L93 Difference]: Finished difference Result 148 states and 164 transitions. [2021-10-21 20:25:44,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 20:25:44,479 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 16 [2021-10-21 20:25:44,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 20:25:44,482 INFO L225 Difference]: With dead ends: 148 [2021-10-21 20:25:44,482 INFO L226 Difference]: Without dead ends: 145 [2021-10-21 20:25:44,483 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.9ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 20:25:44,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states. [2021-10-21 20:25:44,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 83. [2021-10-21 20:25:44,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83 states, 37 states have (on average 1.972972972972973) internal successors, (73), 70 states have internal predecessors, (73), 8 states have call successors, (8), 5 states have call predecessors, (8), 4 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2021-10-21 20:25:44,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 88 transitions. [2021-10-21 20:25:44,510 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 88 transitions. Word has length 16 [2021-10-21 20:25:44,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 20:25:44,511 INFO L470 AbstractCegarLoop]: Abstraction has 83 states and 88 transitions. [2021-10-21 20:25:44,511 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-10-21 20:25:44,512 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 88 transitions. [2021-10-21 20:25:44,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-10-21 20:25:44,513 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 20:25:44,514 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 20:25:44,531 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19c86ef6-c926-42c5-95ef-aa28594bc139/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-10-21 20:25:44,727 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19c86ef6-c926-42c5-95ef-aa28594bc139/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 [2021-10-21 20:25:44,727 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting entry_pointErr0REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 109 more)] === [2021-10-21 20:25:44,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:25:44,728 INFO L82 PathProgramCache]: Analyzing trace with hash -1671219437, now seen corresponding path program 1 times [2021-10-21 20:25:44,729 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-21 20:25:44,729 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [748557775] [2021-10-21 20:25:44,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:25:44,729 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-21 20:25:44,730 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19c86ef6-c926-42c5-95ef-aa28594bc139/bin/uautomizer-j4sWxH34Be/mathsat [2021-10-21 20:25:44,737 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19c86ef6-c926-42c5-95ef-aa28594bc139/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-21 20:25:44,749 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19c86ef6-c926-42c5-95ef-aa28594bc139/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-21 20:25:44,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:25:44,967 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-21 20:25:44,969 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:25:45,036 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 [2021-10-21 20:25:45,228 INFO L354 Elim1Store]: treesize reduction 12, result has 40.0 percent of original size [2021-10-21 20:25:45,228 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 14 treesize of output 19 [2021-10-21 20:25:45,259 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:25:45,259 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-21 20:25:45,643 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:25:45,644 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-21 20:25:45,644 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [748557775] [2021-10-21 20:25:45,644 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [748557775] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-21 20:25:45,644 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-21 20:25:45,645 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5] total 7 [2021-10-21 20:25:45,645 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1808998706] [2021-10-21 20:25:45,645 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-21 20:25:45,646 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-21 20:25:45,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-21 20:25:45,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-10-21 20:25:45,649 INFO L87 Difference]: Start difference. First operand 83 states and 88 transitions. Second operand has 8 states, 7 states have (on average 2.0) internal successors, (14), 7 states have internal predecessors, (14), 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) [2021-10-21 20:25:49,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:25:49,153 INFO L93 Difference]: Finished difference Result 188 states and 207 transitions. [2021-10-21 20:25:49,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-21 20:25:49,154 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 2.0) internal successors, (14), 7 states have internal predecessors, (14), 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 19 [2021-10-21 20:25:49,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 20:25:49,157 INFO L225 Difference]: With dead ends: 188 [2021-10-21 20:25:49,157 INFO L226 Difference]: Without dead ends: 188 [2021-10-21 20:25:49,158 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 29 SyntacticMatches, 4 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 288.2ms TimeCoverageRelationStatistics Valid=49, Invalid=133, Unknown=0, NotChecked=0, Total=182 [2021-10-21 20:25:49,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188 states. [2021-10-21 20:25:49,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188 to 93. [2021-10-21 20:25:49,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 48 states have (on average 1.7708333333333333) internal successors, (85), 77 states have internal predecessors, (85), 9 states have call successors, (9), 6 states have call predecessors, (9), 6 states have return successors, (13), 9 states have call predecessors, (13), 8 states have call successors, (13) [2021-10-21 20:25:49,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 107 transitions. [2021-10-21 20:25:49,172 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 107 transitions. Word has length 19 [2021-10-21 20:25:49,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 20:25:49,173 INFO L470 AbstractCegarLoop]: Abstraction has 93 states and 107 transitions. [2021-10-21 20:25:49,173 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 2.0) internal successors, (14), 7 states have internal predecessors, (14), 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) [2021-10-21 20:25:49,173 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 107 transitions. [2021-10-21 20:25:49,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-10-21 20:25:49,174 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 20:25:49,174 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 20:25:49,196 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19c86ef6-c926-42c5-95ef-aa28594bc139/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-10-21 20:25:49,388 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19c86ef6-c926-42c5-95ef-aa28594bc139/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 [2021-10-21 20:25:49,389 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting entry_pointErr1REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 109 more)] === [2021-10-21 20:25:49,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:25:49,389 INFO L82 PathProgramCache]: Analyzing trace with hash -1671219436, now seen corresponding path program 1 times [2021-10-21 20:25:49,390 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-21 20:25:49,390 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [274650591] [2021-10-21 20:25:49,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:25:49,391 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-21 20:25:49,391 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19c86ef6-c926-42c5-95ef-aa28594bc139/bin/uautomizer-j4sWxH34Be/mathsat [2021-10-21 20:25:49,392 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19c86ef6-c926-42c5-95ef-aa28594bc139/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-21 20:25:49,396 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19c86ef6-c926-42c5-95ef-aa28594bc139/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-10-21 20:25:49,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:25:49,633 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 16 conjunts are in the unsatisfiable core [2021-10-21 20:25:49,635 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:25:49,694 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 [2021-10-21 20:25:49,703 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 [2021-10-21 20:25:52,114 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-10-21 20:25:52,115 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 32 [2021-10-21 20:25:52,138 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-10-21 20:25:52,139 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 24 treesize of output 24 [2021-10-21 20:25:52,187 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:25:52,188 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-21 20:26:07,026 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 31 treesize of output 29 [2021-10-21 20:26:07,191 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:26:07,191 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-21 20:26:07,191 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [274650591] [2021-10-21 20:26:07,191 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [274650591] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-21 20:26:07,191 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-21 20:26:07,192 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 15 [2021-10-21 20:26:07,192 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1450203933] [2021-10-21 20:26:07,192 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2021-10-21 20:26:07,192 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-21 20:26:07,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-10-21 20:26:07,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=196, Unknown=6, NotChecked=0, Total=240 [2021-10-21 20:26:07,194 INFO L87 Difference]: Start difference. First operand 93 states and 107 transitions. Second operand has 16 states, 15 states have (on average 1.3333333333333333) internal successors, (20), 12 states have internal predecessors, (20), 3 states have call successors, (6), 3 states have call predecessors, (6), 5 states have return successors, (5), 5 states have call predecessors, (5), 3 states have call successors, (5) [2021-10-21 20:27:48,990 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse0 (bvadd (_ bv4 32) c_entry_point_~a10~0.offset))) (and (forall ((|v_ldv_malloc_#res.base_28| (_ BitVec 32))) (or (and (forall ((v_ldv_malloc_~size_25 (_ BitVec 32))) (bvule (bvadd (_ bv4 32) c_entry_point_~a10~0.offset) (select (store |c_#length| |v_ldv_malloc_#res.base_28| v_ldv_malloc_~size_25) c_entry_point_~a10~0.base))) (bvule c_entry_point_~a10~0.offset (bvadd (_ bv4 32) c_entry_point_~a10~0.offset))) (not (= (_ bv0 1) (bvneg (bvneg (bvneg (bvneg (select |c_#valid| |v_ldv_malloc_#res.base_28|))))))))) (= |c_old(#valid)| |c_#valid|) (= |c_#length| |c_old(#length)|) (bvule c_entry_point_~a10~0.offset .cse0) (bvule .cse0 (select |c_#length| c_entry_point_~a10~0.base)))) is different from false [2021-10-21 20:29:25,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:29:25,331 INFO L93 Difference]: Finished difference Result 257 states and 288 transitions. [2021-10-21 20:29:25,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-10-21 20:29:25,332 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 1.3333333333333333) internal successors, (20), 12 states have internal predecessors, (20), 3 states have call successors, (6), 3 states have call predecessors, (6), 5 states have return successors, (5), 5 states have call predecessors, (5), 3 states have call successors, (5) Word has length 19 [2021-10-21 20:29:25,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 20:29:25,336 INFO L225 Difference]: With dead ends: 257 [2021-10-21 20:29:25,336 INFO L226 Difference]: Without dead ends: 257 [2021-10-21 20:29:25,337 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 56824.0ms TimeCoverageRelationStatistics Valid=142, Invalid=602, Unknown=16, NotChecked=52, Total=812 [2021-10-21 20:29:25,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 257 states. [2021-10-21 20:29:25,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 257 to 146. [2021-10-21 20:29:25,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 146 states, 96 states have (on average 1.6979166666666667) internal successors, (163), 121 states have internal predecessors, (163), 15 states have call successors, (15), 6 states have call predecessors, (15), 7 states have return successors, (26), 18 states have call predecessors, (26), 14 states have call successors, (26) [2021-10-21 20:29:25,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 204 transitions. [2021-10-21 20:29:25,362 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 204 transitions. Word has length 19 [2021-10-21 20:29:25,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 20:29:25,363 INFO L470 AbstractCegarLoop]: Abstraction has 146 states and 204 transitions. [2021-10-21 20:29:25,363 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 1.3333333333333333) internal successors, (20), 12 states have internal predecessors, (20), 3 states have call successors, (6), 3 states have call predecessors, (6), 5 states have return successors, (5), 5 states have call predecessors, (5), 3 states have call successors, (5) [2021-10-21 20:29:25,364 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 204 transitions. [2021-10-21 20:29:25,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-10-21 20:29:25,365 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 20:29:25,365 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 20:29:25,378 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19c86ef6-c926-42c5-95ef-aa28594bc139/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-10-21 20:29:25,565 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19c86ef6-c926-42c5-95ef-aa28594bc139/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 [2021-10-21 20:29:25,566 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting entry_pointErr0REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 109 more)] === [2021-10-21 20:29:25,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:29:25,567 INFO L82 PathProgramCache]: Analyzing trace with hash 826796500, now seen corresponding path program 1 times [2021-10-21 20:29:25,567 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-21 20:29:25,567 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [406916074] [2021-10-21 20:29:25,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:29:25,568 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-21 20:29:25,568 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19c86ef6-c926-42c5-95ef-aa28594bc139/bin/uautomizer-j4sWxH34Be/mathsat [2021-10-21 20:29:25,569 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19c86ef6-c926-42c5-95ef-aa28594bc139/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-21 20:29:25,572 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19c86ef6-c926-42c5-95ef-aa28594bc139/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-10-21 20:29:25,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:29:25,810 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-21 20:29:25,811 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:29:26,011 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:29:26,011 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-21 20:29:26,198 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-21 20:29:26,198 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-21 20:29:26,198 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [406916074] [2021-10-21 20:29:26,198 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [406916074] provided 1 perfect and 1 imperfect interpolant sequences [2021-10-21 20:29:26,198 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-21 20:29:26,199 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 5 [2021-10-21 20:29:26,199 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1923955707] [2021-10-21 20:29:26,199 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-21 20:29:26,199 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-21 20:29:26,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-21 20:29:26,200 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-21 20:29:26,201 INFO L87 Difference]: Start difference. First operand 146 states and 204 transitions. Second operand has 5 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 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) [2021-10-21 20:29:26,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:29:26,295 INFO L93 Difference]: Finished difference Result 119 states and 155 transitions. [2021-10-21 20:29:26,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-21 20:29:26,296 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 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 19 [2021-10-21 20:29:26,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 20:29:26,297 INFO L225 Difference]: With dead ends: 119 [2021-10-21 20:29:26,298 INFO L226 Difference]: Without dead ends: 115 [2021-10-21 20:29:26,298 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 68.1ms TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-21 20:29:26,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2021-10-21 20:29:26,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 115. [2021-10-21 20:29:26,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115 states, 73 states have (on average 1.6849315068493151) internal successors, (123), 96 states have internal predecessors, (123), 11 states have call successors, (11), 6 states have call predecessors, (11), 6 states have return successors, (17), 12 states have call predecessors, (17), 10 states have call successors, (17) [2021-10-21 20:29:26,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 151 transitions. [2021-10-21 20:29:26,312 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 151 transitions. Word has length 19 [2021-10-21 20:29:26,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 20:29:26,312 INFO L470 AbstractCegarLoop]: Abstraction has 115 states and 151 transitions. [2021-10-21 20:29:26,313 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 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) [2021-10-21 20:29:26,313 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 151 transitions. [2021-10-21 20:29:26,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-10-21 20:29:26,313 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 20:29:26,314 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 20:29:26,333 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19c86ef6-c926-42c5-95ef-aa28594bc139/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-10-21 20:29:26,514 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19c86ef6-c926-42c5-95ef-aa28594bc139/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 [2021-10-21 20:29:26,515 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting entry_pointErr25ASSERT_VIOLATIONMEMORY_FREE === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 109 more)] === [2021-10-21 20:29:26,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:29:26,515 INFO L82 PathProgramCache]: Analyzing trace with hash -1188547394, now seen corresponding path program 1 times [2021-10-21 20:29:26,515 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-21 20:29:26,516 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [281045201] [2021-10-21 20:29:26,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:29:26,516 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-21 20:29:26,516 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19c86ef6-c926-42c5-95ef-aa28594bc139/bin/uautomizer-j4sWxH34Be/mathsat [2021-10-21 20:29:26,517 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19c86ef6-c926-42c5-95ef-aa28594bc139/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-21 20:29:26,518 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19c86ef6-c926-42c5-95ef-aa28594bc139/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-10-21 20:29:26,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:29:26,791 INFO L263 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-21 20:29:26,793 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:29:26,886 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2021-10-21 20:29:26,919 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 8 [2021-10-21 20:29:26,948 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-21 20:29:26,948 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-21 20:29:27,075 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-21 20:29:27,076 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-21 20:29:27,076 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [281045201] [2021-10-21 20:29:27,076 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [281045201] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-21 20:29:27,076 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-21 20:29:27,077 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 6 [2021-10-21 20:29:27,077 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1366473267] [2021-10-21 20:29:27,077 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-21 20:29:27,078 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-21 20:29:27,078 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-21 20:29:27,078 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-10-21 20:29:27,079 INFO L87 Difference]: Start difference. First operand 115 states and 151 transitions. Second operand has 6 states, 6 states have (on average 2.5) internal successors, (15), 5 states have internal predecessors, (15), 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) [2021-10-21 20:29:27,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:29:27,347 INFO L93 Difference]: Finished difference Result 117 states and 150 transitions. [2021-10-21 20:29:27,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-21 20:29:27,347 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.5) internal successors, (15), 5 states have internal predecessors, (15), 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 24 [2021-10-21 20:29:27,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 20:29:27,349 INFO L225 Difference]: With dead ends: 117 [2021-10-21 20:29:27,349 INFO L226 Difference]: Without dead ends: 117 [2021-10-21 20:29:27,350 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 88.9ms TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-10-21 20:29:27,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2021-10-21 20:29:27,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 115. [2021-10-21 20:29:27,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115 states, 73 states have (on average 1.6712328767123288) internal successors, (122), 96 states have internal predecessors, (122), 11 states have call successors, (11), 6 states have call predecessors, (11), 6 states have return successors, (17), 12 states have call predecessors, (17), 10 states have call successors, (17) [2021-10-21 20:29:27,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 150 transitions. [2021-10-21 20:29:27,363 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 150 transitions. Word has length 24 [2021-10-21 20:29:27,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 20:29:27,364 INFO L470 AbstractCegarLoop]: Abstraction has 115 states and 150 transitions. [2021-10-21 20:29:27,364 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.5) internal successors, (15), 5 states have internal predecessors, (15), 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) [2021-10-21 20:29:27,364 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 150 transitions. [2021-10-21 20:29:27,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-10-21 20:29:27,365 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 20:29:27,365 INFO L512 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] [2021-10-21 20:29:27,383 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19c86ef6-c926-42c5-95ef-aa28594bc139/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-10-21 20:29:27,582 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19c86ef6-c926-42c5-95ef-aa28594bc139/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 [2021-10-21 20:29:27,583 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting entry_pointErr25ASSERT_VIOLATIONMEMORY_FREE === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 109 more)] === [2021-10-21 20:29:27,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:29:27,583 INFO L82 PathProgramCache]: Analyzing trace with hash 1298965439, now seen corresponding path program 1 times [2021-10-21 20:29:27,584 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-21 20:29:27,584 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1708822516] [2021-10-21 20:29:27,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:29:27,584 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-21 20:29:27,584 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19c86ef6-c926-42c5-95ef-aa28594bc139/bin/uautomizer-j4sWxH34Be/mathsat [2021-10-21 20:29:27,585 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19c86ef6-c926-42c5-95ef-aa28594bc139/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-21 20:29:27,586 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19c86ef6-c926-42c5-95ef-aa28594bc139/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-10-21 20:29:27,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:29:27,845 INFO L263 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-21 20:29:27,847 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:29:28,381 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:29:28,381 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-21 20:29:28,649 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-21 20:29:28,649 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-21 20:29:28,649 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1708822516] [2021-10-21 20:29:28,650 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1708822516] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-21 20:29:28,650 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-21 20:29:28,650 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 4] total 9 [2021-10-21 20:29:28,650 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [178398292] [2021-10-21 20:29:28,651 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-21 20:29:28,651 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-21 20:29:28,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-21 20:29:28,653 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2021-10-21 20:29:28,653 INFO L87 Difference]: Start difference. First operand 115 states and 150 transitions. Second operand has 10 states, 9 states have (on average 3.4444444444444446) internal successors, (31), 8 states have internal predecessors, (31), 4 states have call successors, (9), 3 states have call predecessors, (9), 5 states have return successors, (6), 6 states have call predecessors, (6), 4 states have call successors, (6) [2021-10-21 20:29:29,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:29:29,289 INFO L93 Difference]: Finished difference Result 114 states and 148 transitions. [2021-10-21 20:29:29,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-21 20:29:29,290 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.4444444444444446) internal successors, (31), 8 states have internal predecessors, (31), 4 states have call successors, (9), 3 states have call predecessors, (9), 5 states have return successors, (6), 6 states have call predecessors, (6), 4 states have call successors, (6) Word has length 24 [2021-10-21 20:29:29,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 20:29:29,292 INFO L225 Difference]: With dead ends: 114 [2021-10-21 20:29:29,292 INFO L226 Difference]: Without dead ends: 114 [2021-10-21 20:29:29,292 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 38 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 313.4ms TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2021-10-21 20:29:29,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2021-10-21 20:29:29,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 114. [2021-10-21 20:29:29,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114 states, 73 states have (on average 1.643835616438356) internal successors, (120), 95 states have internal predecessors, (120), 11 states have call successors, (11), 6 states have call predecessors, (11), 6 states have return successors, (17), 12 states have call predecessors, (17), 10 states have call successors, (17) [2021-10-21 20:29:29,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 148 transitions. [2021-10-21 20:29:29,302 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 148 transitions. Word has length 24 [2021-10-21 20:29:29,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 20:29:29,303 INFO L470 AbstractCegarLoop]: Abstraction has 114 states and 148 transitions. [2021-10-21 20:29:29,303 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.4444444444444446) internal successors, (31), 8 states have internal predecessors, (31), 4 states have call successors, (9), 3 states have call predecessors, (9), 5 states have return successors, (6), 6 states have call predecessors, (6), 4 states have call successors, (6) [2021-10-21 20:29:29,303 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 148 transitions. [2021-10-21 20:29:29,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-10-21 20:29:29,305 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 20:29:29,305 INFO L512 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 20:29:29,322 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19c86ef6-c926-42c5-95ef-aa28594bc139/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-10-21 20:29:29,517 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19c86ef6-c926-42c5-95ef-aa28594bc139/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 [2021-10-21 20:29:29,520 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting entry_pointErr6REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 109 more)] === [2021-10-21 20:29:29,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:29:29,521 INFO L82 PathProgramCache]: Analyzing trace with hash 88403612, now seen corresponding path program 1 times [2021-10-21 20:29:29,521 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-21 20:29:29,522 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [876903642] [2021-10-21 20:29:29,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:29:29,522 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-21 20:29:29,522 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19c86ef6-c926-42c5-95ef-aa28594bc139/bin/uautomizer-j4sWxH34Be/mathsat [2021-10-21 20:29:29,523 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19c86ef6-c926-42c5-95ef-aa28594bc139/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-21 20:29:29,525 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19c86ef6-c926-42c5-95ef-aa28594bc139/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-10-21 20:29:29,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:29:29,797 INFO L263 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-21 20:29:29,799 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:29:29,854 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 [2021-10-21 20:29:29,911 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 15 [2021-10-21 20:29:29,974 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2021-10-21 20:29:30,178 INFO L354 Elim1Store]: treesize reduction 12, result has 40.0 percent of original size [2021-10-21 20:29:30,178 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 14 treesize of output 19 [2021-10-21 20:29:30,217 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-21 20:29:30,218 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-21 20:29:30,706 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-21 20:29:30,707 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-21 20:29:30,707 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [876903642] [2021-10-21 20:29:30,707 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [876903642] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-21 20:29:30,707 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-21 20:29:30,707 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6] total 8 [2021-10-21 20:29:30,708 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1490013352] [2021-10-21 20:29:30,708 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-10-21 20:29:30,708 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-21 20:29:30,709 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-21 20:29:30,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-10-21 20:29:30,709 INFO L87 Difference]: Start difference. First operand 114 states and 148 transitions. Second operand has 9 states, 8 states have (on average 2.625) internal successors, (21), 8 states have internal predecessors, (21), 2 states have call successors, (7), 3 states have call predecessors, (7), 4 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) [2021-10-21 20:29:32,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:29:32,636 INFO L93 Difference]: Finished difference Result 151 states and 180 transitions. [2021-10-21 20:29:32,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-21 20:29:32,637 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 2.625) internal successors, (21), 8 states have internal predecessors, (21), 2 states have call successors, (7), 3 states have call predecessors, (7), 4 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) Word has length 29 [2021-10-21 20:29:32,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 20:29:32,639 INFO L225 Difference]: With dead ends: 151 [2021-10-21 20:29:32,639 INFO L226 Difference]: Without dead ends: 151 [2021-10-21 20:29:32,639 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 47 SyntacticMatches, 4 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 740.8ms TimeCoverageRelationStatistics Valid=59, Invalid=213, Unknown=0, NotChecked=0, Total=272 [2021-10-21 20:29:32,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2021-10-21 20:29:32,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 114. [2021-10-21 20:29:32,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114 states, 73 states have (on average 1.63013698630137) internal successors, (119), 95 states have internal predecessors, (119), 11 states have call successors, (11), 6 states have call predecessors, (11), 6 states have return successors, (17), 12 states have call predecessors, (17), 10 states have call successors, (17) [2021-10-21 20:29:32,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 147 transitions. [2021-10-21 20:29:32,647 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 147 transitions. Word has length 29 [2021-10-21 20:29:32,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 20:29:32,648 INFO L470 AbstractCegarLoop]: Abstraction has 114 states and 147 transitions. [2021-10-21 20:29:32,648 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 2.625) internal successors, (21), 8 states have internal predecessors, (21), 2 states have call successors, (7), 3 states have call predecessors, (7), 4 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) [2021-10-21 20:29:32,648 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 147 transitions. [2021-10-21 20:29:32,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-10-21 20:29:32,649 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 20:29:32,649 INFO L512 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 20:29:32,667 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19c86ef6-c926-42c5-95ef-aa28594bc139/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (9)] Ended with exit code 0 [2021-10-21 20:29:32,864 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19c86ef6-c926-42c5-95ef-aa28594bc139/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 [2021-10-21 20:29:32,864 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting entry_pointErr7REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 109 more)] === [2021-10-21 20:29:32,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:29:32,864 INFO L82 PathProgramCache]: Analyzing trace with hash 88403613, now seen corresponding path program 1 times [2021-10-21 20:29:32,865 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-21 20:29:32,865 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [120307648] [2021-10-21 20:29:32,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:29:32,865 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-21 20:29:32,865 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19c86ef6-c926-42c5-95ef-aa28594bc139/bin/uautomizer-j4sWxH34Be/mathsat [2021-10-21 20:29:32,866 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19c86ef6-c926-42c5-95ef-aa28594bc139/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-21 20:29:32,869 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19c86ef6-c926-42c5-95ef-aa28594bc139/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-10-21 20:29:33,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:29:33,175 INFO L263 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 18 conjunts are in the unsatisfiable core [2021-10-21 20:29:33,177 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:29:33,240 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 [2021-10-21 20:29:33,250 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 [2021-10-21 20:29:33,363 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-10-21 20:29:33,376 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 22 [2021-10-21 20:29:33,525 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 33 [2021-10-21 20:29:33,534 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22 [2021-10-21 20:29:35,899 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-10-21 20:29:35,900 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 33 treesize of output 35 [2021-10-21 20:29:35,924 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-10-21 20:29:35,925 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 27 treesize of output 27 [2021-10-21 20:29:35,999 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 8 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-21 20:29:35,999 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-21 20:29:42,399 WARN L860 $PredicateComparison]: unable to prove that (forall ((|v_entry_point_#t~mem47.base_BEFORE_CALL_4| (_ BitVec 32)) (|v_ldv_malloc_#res.base_69| (_ BitVec 32)) (|v_entry_point_#t~mem47.offset_BEFORE_CALL_2| (_ BitVec 32))) (or (exists ((|v_ldv_malloc_#res.base_68| (_ BitVec 32))) (and (or (not (bvule |v_entry_point_#t~mem47.offset_BEFORE_CALL_2| (bvadd (_ bv4 32) |v_entry_point_#t~mem47.offset_BEFORE_CALL_2|))) (exists ((v_ldv_malloc_~size_61 (_ BitVec 32))) (not (bvule (bvadd (_ bv4 32) |v_entry_point_#t~mem47.offset_BEFORE_CALL_2|) (select (store |c_old(#length)| |v_ldv_malloc_#res.base_68| v_ldv_malloc_~size_61) |v_entry_point_#t~mem47.base_BEFORE_CALL_4|))))) (= (_ bv0 1) (bvneg (bvneg (bvneg (bvneg (bvneg (select |c_old(#valid)| |v_ldv_malloc_#res.base_68|))))))))) (and (forall ((ldv_malloc_~size (_ BitVec 32))) (bvule (bvadd (_ bv4 32) |v_entry_point_#t~mem47.offset_BEFORE_CALL_2|) (select (store |c_#length| |v_ldv_malloc_#res.base_69| ldv_malloc_~size) |v_entry_point_#t~mem47.base_BEFORE_CALL_4|))) (bvule |v_entry_point_#t~mem47.offset_BEFORE_CALL_2| (bvadd (_ bv4 32) |v_entry_point_#t~mem47.offset_BEFORE_CALL_2|))) (not (= (_ bv0 1) (bvneg (bvneg (bvneg (select |c_#valid| |v_ldv_malloc_#res.base_69|)))))))) is different from true [2021-10-21 20:29:47,051 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 31 treesize of output 29 [2021-10-21 20:29:47,207 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 1 not checked. [2021-10-21 20:29:47,207 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-21 20:29:47,207 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [120307648] [2021-10-21 20:29:47,208 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [120307648] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-21 20:29:47,208 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-21 20:29:47,208 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 17 [2021-10-21 20:29:47,208 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1176625759] [2021-10-21 20:29:47,209 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-10-21 20:29:47,209 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-21 20:29:47,209 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-10-21 20:29:47,210 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=231, Unknown=3, NotChecked=30, Total=306 [2021-10-21 20:29:47,210 INFO L87 Difference]: Start difference. First operand 114 states and 147 transitions. Second operand has 18 states, 15 states have (on average 2.066666666666667) internal successors, (31), 14 states have internal predecessors, (31), 3 states have call successors, (7), 3 states have call predecessors, (7), 5 states have return successors, (6), 5 states have call predecessors, (6), 3 states have call successors, (6) [2021-10-21 20:31:05,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:31:05,908 INFO L93 Difference]: Finished difference Result 148 states and 173 transitions. [2021-10-21 20:31:05,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-10-21 20:31:05,910 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 15 states have (on average 2.066666666666667) internal successors, (31), 14 states have internal predecessors, (31), 3 states have call successors, (7), 3 states have call predecessors, (7), 5 states have return successors, (6), 5 states have call predecessors, (6), 3 states have call successors, (6) Word has length 29 [2021-10-21 20:31:05,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 20:31:05,911 INFO L225 Difference]: With dead ends: 148 [2021-10-21 20:31:05,911 INFO L226 Difference]: Without dead ends: 148 [2021-10-21 20:31:05,912 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 42 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 17980.5ms TimeCoverageRelationStatistics Valid=86, Invalid=466, Unknown=4, NotChecked=44, Total=600 [2021-10-21 20:31:05,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2021-10-21 20:31:05,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 114. [2021-10-21 20:31:05,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114 states, 73 states have (on average 1.6164383561643836) internal successors, (118), 95 states have internal predecessors, (118), 11 states have call successors, (11), 6 states have call predecessors, (11), 6 states have return successors, (17), 12 states have call predecessors, (17), 10 states have call successors, (17) [2021-10-21 20:31:05,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 146 transitions. [2021-10-21 20:31:05,920 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 146 transitions. Word has length 29 [2021-10-21 20:31:05,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 20:31:05,921 INFO L470 AbstractCegarLoop]: Abstraction has 114 states and 146 transitions. [2021-10-21 20:31:05,921 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 15 states have (on average 2.066666666666667) internal successors, (31), 14 states have internal predecessors, (31), 3 states have call successors, (7), 3 states have call predecessors, (7), 5 states have return successors, (6), 5 states have call predecessors, (6), 3 states have call successors, (6) [2021-10-21 20:31:05,921 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 146 transitions. [2021-10-21 20:31:05,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-10-21 20:31:05,923 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 20:31:05,923 INFO L512 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, 1] [2021-10-21 20:31:05,934 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19c86ef6-c926-42c5-95ef-aa28594bc139/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (10)] Ended with exit code 0 [2021-10-21 20:31:06,129 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19c86ef6-c926-42c5-95ef-aa28594bc139/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 [2021-10-21 20:31:06,129 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting mainErr0ENSURES_VIOLATIONMEMORY_LEAK === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 109 more)] === [2021-10-21 20:31:06,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:31:06,129 INFO L82 PathProgramCache]: Analyzing trace with hash -1144478410, now seen corresponding path program 1 times [2021-10-21 20:31:06,130 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-21 20:31:06,130 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1224349893] [2021-10-21 20:31:06,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:31:06,130 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-21 20:31:06,130 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19c86ef6-c926-42c5-95ef-aa28594bc139/bin/uautomizer-j4sWxH34Be/mathsat [2021-10-21 20:31:06,131 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19c86ef6-c926-42c5-95ef-aa28594bc139/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-21 20:31:06,134 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19c86ef6-c926-42c5-95ef-aa28594bc139/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-10-21 20:31:06,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:31:06,468 INFO L263 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 15 conjunts are in the unsatisfiable core [2021-10-21 20:31:06,470 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:31:06,515 INFO L354 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2021-10-21 20:31:06,515 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 15 [2021-10-21 20:31:11,206 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-21 20:31:11,206 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-21 20:31:15,555 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_old(#valid)_BEFORE_CALL_8| (Array (_ BitVec 32) (_ BitVec 1)))) (or (= |v_old(#valid)_BEFORE_CALL_8| |c_#valid|) (exists ((v_entry_point_~a10~0.base_42 (_ BitVec 32))) (and (not (= |v_old(#valid)_BEFORE_CALL_8| (store |c_old(#valid)| v_entry_point_~a10~0.base_42 (_ bv0 1)))) (= (_ bv0 1) (bvneg (bvneg (bvneg (bvneg (select |c_old(#valid)| v_entry_point_~a10~0.base_42)))))))))) is different from false [2021-10-21 20:31:20,190 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-21 20:31:20,190 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1224349893] [2021-10-21 20:31:20,191 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Substitution failed: {(= (store |v_old(#valid)_BEFORE_CALL_9| v_entry_point_~a10~0.base_42 (_ bv0 1)) v_prenex_1)=(= (select v_prenex_1 v_antiDerIndex_entry0_1) (select (store |v_old(#valid)_BEFORE_CALL_9| v_entry_point_~a10~0.base_42 (_ bv0 1)) v_antiDerIndex_entry0_1))} [2021-10-21 20:31:20,191 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1678910849] [2021-10-21 20:31:20,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:31:20,191 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-21 20:31:20,191 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19c86ef6-c926-42c5-95ef-aa28594bc139/bin/uautomizer-j4sWxH34Be/cvc4 [2021-10-21 20:31:20,192 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19c86ef6-c926-42c5-95ef-aa28594bc139/bin/uautomizer-j4sWxH34Be/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-21 20:31:20,194 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19c86ef6-c926-42c5-95ef-aa28594bc139/bin/uautomizer-j4sWxH34Be/cvc4 --incremental --print-success --lang smt (12)] Waiting until timeout for monitored process [2021-10-21 20:31:20,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:31:20,726 INFO L263 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 16 conjunts are in the unsatisfiable core [2021-10-21 20:31:20,728 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:31:20,801 INFO L354 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2021-10-21 20:31:20,801 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 27 [2021-10-21 20:31:23,373 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-21 20:31:23,373 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-21 20:31:27,672 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_old(#valid)_BEFORE_CALL_13| (Array (_ BitVec 32) (_ BitVec 1)))) (or (exists ((v_entry_point_~a10~0.base_42 (_ BitVec 32))) (and (not (= |v_old(#valid)_BEFORE_CALL_13| (store |c_old(#valid)| v_entry_point_~a10~0.base_42 (_ bv0 1)))) (= (_ bv0 1) (bvneg (bvneg (bvneg (bvneg (select |c_old(#valid)| v_entry_point_~a10~0.base_42)))))))) (= |v_old(#valid)_BEFORE_CALL_13| |c_#valid|))) is different from false [2021-10-21 20:31:27,776 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_old(#valid)_BEFORE_CALL_13| (Array (_ BitVec 32) (_ BitVec 1)))) (or (exists ((v_entry_point_~a10~0.base_42 (_ BitVec 32))) (and (not (= |v_old(#valid)_BEFORE_CALL_13| (store |c_old(#valid)| v_entry_point_~a10~0.base_42 (_ bv0 1)))) (= (_ bv0 1) (bvneg (bvneg (bvneg (bvneg (select |c_old(#valid)| v_entry_point_~a10~0.base_42)))))))) (= |v_old(#valid)_BEFORE_CALL_13| (store |c_#valid| c_entry_point_~a10~0.base (_ bv0 1))))) is different from false [2021-10-21 20:31:28,233 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Substitution failed: {(= (store |v_old(#valid)_BEFORE_CALL_14| v_entry_point_~a10~0.base_42 (_ bv0 1)) v_prenex_5)=(= (select (store |v_old(#valid)_BEFORE_CALL_14| v_entry_point_~a10~0.base_42 (_ bv0 1)) v_antiDerIndex_entry0_2) (select v_prenex_5 v_antiDerIndex_entry0_2))} [2021-10-21 20:31:28,233 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [468373996] [2021-10-21 20:31:28,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:31:28,233 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 20:31:28,233 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19c86ef6-c926-42c5-95ef-aa28594bc139/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:31:28,240 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19c86ef6-c926-42c5-95ef-aa28594bc139/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 20:31:28,260 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19c86ef6-c926-42c5-95ef-aa28594bc139/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2021-10-21 20:31:28,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:31:28,689 INFO L263 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 13 conjunts are in the unsatisfiable core [2021-10-21 20:31:28,690 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:31:29,004 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-21 20:31:29,004 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-21 20:31:40,741 INFO L354 Elim1Store]: treesize reduction 15, result has 79.5 percent of original size [2021-10-21 20:31:40,741 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 66 treesize of output 114 [2021-10-21 20:31:41,853 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Substitution failed: {(not (= (store |old(#valid)| v_entry_point_~a10~0.base_BEFORE_CALL_12 (_ bv0 1)) v_prenex_7))=(not (= (select (store |old(#valid)| v_entry_point_~a10~0.base_BEFORE_CALL_12 (_ bv0 1)) v_antiDerIndex_entry0_4) (select v_prenex_7 v_antiDerIndex_entry0_4)))} [2021-10-21 20:31:41,853 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 0 imperfect interpolant sequences. [2021-10-21 20:31:41,853 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [] total 0 [2021-10-21 20:31:41,854 ERROR L172 FreeRefinementEngine]: Strategy WOLF failed to provide any proof altough trace is infeasible [2021-10-21 20:31:41,854 INFO L626 BasicCegarLoop]: Counterexample might be feasible [2021-10-21 20:31:41,861 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr0ENSURES_VIOLATIONMEMORY_LEAK [2021-10-21 20:31:41,863 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_allocErr0REQUIRES_VIOLATION [2021-10-21 20:31:41,864 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_allocErr1REQUIRES_VIOLATION [2021-10-21 20:31:41,864 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kref_initErr0REQUIRES_VIOLATION [2021-10-21 20:31:41,864 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kref_initErr1REQUIRES_VIOLATION [2021-10-21 20:31:41,864 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr0REQUIRES_VIOLATION [2021-10-21 20:31:41,865 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr1REQUIRES_VIOLATION [2021-10-21 20:31:41,865 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr2REQUIRES_VIOLATION [2021-10-21 20:31:41,865 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr3REQUIRES_VIOLATION [2021-10-21 20:31:41,865 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION [2021-10-21 20:31:41,865 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION [2021-10-21 20:31:41,866 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION [2021-10-21 20:31:41,866 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION [2021-10-21 20:31:41,866 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr0REQUIRES_VIOLATION [2021-10-21 20:31:41,866 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr1REQUIRES_VIOLATION [2021-10-21 20:31:41,867 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr2REQUIRES_VIOLATION [2021-10-21 20:31:41,867 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr3REQUIRES_VIOLATION [2021-10-21 20:31:41,867 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr4REQUIRES_VIOLATION [2021-10-21 20:31:41,867 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr5REQUIRES_VIOLATION [2021-10-21 20:31:41,867 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr6REQUIRES_VIOLATION [2021-10-21 20:31:41,868 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr7REQUIRES_VIOLATION [2021-10-21 20:31:41,868 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_set_drvdataErr0REQUIRES_VIOLATION [2021-10-21 20:31:41,868 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_set_drvdataErr1REQUIRES_VIOLATION [2021-10-21 20:31:41,868 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr0REQUIRES_VIOLATION [2021-10-21 20:31:41,869 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr1REQUIRES_VIOLATION [2021-10-21 20:31:41,869 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr2REQUIRES_VIOLATION [2021-10-21 20:31:41,869 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr3REQUIRES_VIOLATION [2021-10-21 20:31:41,869 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr0REQUIRES_VIOLATION [2021-10-21 20:31:41,869 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr1REQUIRES_VIOLATION [2021-10-21 20:31:41,870 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr2REQUIRES_VIOLATION [2021-10-21 20:31:41,870 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr3REQUIRES_VIOLATION [2021-10-21 20:31:41,870 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_addErr0REQUIRES_VIOLATION [2021-10-21 20:31:41,870 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_addErr1REQUIRES_VIOLATION [2021-10-21 20:31:41,870 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location alloc_10Err0REQUIRES_VIOLATION [2021-10-21 20:31:41,871 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location alloc_10Err1REQUIRES_VIOLATION [2021-10-21 20:31:41,871 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location alloc_10Err2REQUIRES_VIOLATION [2021-10-21 20:31:41,871 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location alloc_10Err3REQUIRES_VIOLATION [2021-10-21 20:31:41,871 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location alloc_10Err4REQUIRES_VIOLATION [2021-10-21 20:31:41,872 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location alloc_10Err5REQUIRES_VIOLATION [2021-10-21 20:31:41,872 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr0REQUIRES_VIOLATION [2021-10-21 20:31:41,872 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr1REQUIRES_VIOLATION [2021-10-21 20:31:41,872 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr2REQUIRES_VIOLATION [2021-10-21 20:31:41,872 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr3REQUIRES_VIOLATION [2021-10-21 20:31:41,873 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr4REQUIRES_VIOLATION [2021-10-21 20:31:41,873 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr5REQUIRES_VIOLATION [2021-10-21 20:31:41,873 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_get_drvdataErr0REQUIRES_VIOLATION [2021-10-21 20:31:41,873 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_get_drvdataErr1REQUIRES_VIOLATION [2021-10-21 20:31:41,874 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr0REQUIRES_VIOLATION [2021-10-21 20:31:41,874 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr1REQUIRES_VIOLATION [2021-10-21 20:31:41,874 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE [2021-10-21 20:31:41,874 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE [2021-10-21 20:31:41,875 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE [2021-10-21 20:31:41,875 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE [2021-10-21 20:31:41,875 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE [2021-10-21 20:31:41,875 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE [2021-10-21 20:31:41,875 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr0REQUIRES_VIOLATION [2021-10-21 20:31:41,876 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr1REQUIRES_VIOLATION [2021-10-21 20:31:41,876 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr2REQUIRES_VIOLATION [2021-10-21 20:31:41,876 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr3REQUIRES_VIOLATION [2021-10-21 20:31:41,876 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr4REQUIRES_VIOLATION [2021-10-21 20:31:41,877 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr5REQUIRES_VIOLATION [2021-10-21 20:31:41,877 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr0REQUIRES_VIOLATION [2021-10-21 20:31:41,877 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr1REQUIRES_VIOLATION [2021-10-21 20:31:41,877 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE [2021-10-21 20:31:41,877 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE [2021-10-21 20:31:41,878 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE [2021-10-21 20:31:41,878 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE [2021-10-21 20:31:41,878 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE [2021-10-21 20:31:41,878 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE [2021-10-21 20:31:41,879 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_createErr0REQUIRES_VIOLATION [2021-10-21 20:31:41,879 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_createErr1REQUIRES_VIOLATION [2021-10-21 20:31:41,879 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr0REQUIRES_VIOLATION [2021-10-21 20:31:41,879 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr1REQUIRES_VIOLATION [2021-10-21 20:31:41,880 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr2REQUIRES_VIOLATION [2021-10-21 20:31:41,880 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr3REQUIRES_VIOLATION [2021-10-21 20:31:41,880 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location free_10Err0REQUIRES_VIOLATION [2021-10-21 20:31:41,880 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location free_10Err1REQUIRES_VIOLATION [2021-10-21 20:31:41,880 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location free_10Err2REQUIRES_VIOLATION [2021-10-21 20:31:41,881 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location free_10Err3REQUIRES_VIOLATION [2021-10-21 20:31:41,881 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location free_10Err4REQUIRES_VIOLATION [2021-10-21 20:31:41,881 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location free_10Err5REQUIRES_VIOLATION [2021-10-21 20:31:41,881 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location free_10Err6ASSERT_VIOLATIONMEMORY_FREE [2021-10-21 20:31:41,881 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location free_10Err7ASSERT_VIOLATIONMEMORY_FREE [2021-10-21 20:31:41,882 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location free_10Err8ASSERT_VIOLATIONMEMORY_FREE [2021-10-21 20:31:41,882 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_add_tailErr0REQUIRES_VIOLATION [2021-10-21 20:31:41,882 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_add_tailErr1REQUIRES_VIOLATION [2021-10-21 20:31:41,882 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr0REQUIRES_VIOLATION [2021-10-21 20:31:41,883 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr1REQUIRES_VIOLATION [2021-10-21 20:31:41,883 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr2REQUIRES_VIOLATION [2021-10-21 20:31:41,883 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr3REQUIRES_VIOLATION [2021-10-21 20:31:41,883 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr4REQUIRES_VIOLATION [2021-10-21 20:31:41,883 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr5REQUIRES_VIOLATION [2021-10-21 20:31:41,884 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr6REQUIRES_VIOLATION [2021-10-21 20:31:41,884 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr7REQUIRES_VIOLATION [2021-10-21 20:31:41,884 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr8REQUIRES_VIOLATION [2021-10-21 20:31:41,884 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr9REQUIRES_VIOLATION [2021-10-21 20:31:41,884 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr10REQUIRES_VIOLATION [2021-10-21 20:31:41,885 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr11REQUIRES_VIOLATION [2021-10-21 20:31:41,885 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr12REQUIRES_VIOLATION [2021-10-21 20:31:41,885 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr13REQUIRES_VIOLATION [2021-10-21 20:31:41,885 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr14REQUIRES_VIOLATION [2021-10-21 20:31:41,885 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr15REQUIRES_VIOLATION [2021-10-21 20:31:41,886 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr16ASSERT_VIOLATIONMEMORY_FREE [2021-10-21 20:31:41,886 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr17ASSERT_VIOLATIONMEMORY_FREE [2021-10-21 20:31:41,886 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr18ASSERT_VIOLATIONMEMORY_FREE [2021-10-21 20:31:41,886 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr19REQUIRES_VIOLATION [2021-10-21 20:31:41,887 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr20REQUIRES_VIOLATION [2021-10-21 20:31:41,887 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr21ASSERT_VIOLATIONMEMORY_FREE [2021-10-21 20:31:41,887 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr22ASSERT_VIOLATIONMEMORY_FREE [2021-10-21 20:31:41,887 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr23ASSERT_VIOLATIONMEMORY_FREE [2021-10-21 20:31:41,888 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr24ASSERT_VIOLATIONMEMORY_FREE [2021-10-21 20:31:41,888 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr25ASSERT_VIOLATIONMEMORY_FREE [2021-10-21 20:31:41,888 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr26ASSERT_VIOLATIONMEMORY_FREE [2021-10-21 20:31:41,901 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19c86ef6-c926-42c5-95ef-aa28594bc139/bin/uautomizer-j4sWxH34Be/cvc4 --incremental --print-success --lang smt (12)] Forceful destruction successful, exit code 0 [2021-10-21 20:31:42,101 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19c86ef6-c926-42c5-95ef-aa28594bc139/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-10-21 20:31:42,321 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19c86ef6-c926-42c5-95ef-aa28594bc139/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2021-10-21 20:31:42,493 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19c86ef6-c926-42c5-95ef-aa28594bc139/bin/uautomizer-j4sWxH34Be/cvc4 --incremental --print-success --lang smt,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19c86ef6-c926-42c5-95ef-aa28594bc139/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19c86ef6-c926-42c5-95ef-aa28594bc139/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 20:31:42,500 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-21 20:31:42,504 WARN L418 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2021-10-21 20:31:42,515 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.10 08:31:42 BoogieIcfgContainer [2021-10-21 20:31:42,515 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-21 20:31:42,516 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-21 20:31:42,516 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-21 20:31:42,517 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-21 20:31:42,517 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 08:25:42" (3/4) ... [2021-10-21 20:31:42,521 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-21 20:31:42,521 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-21 20:31:42,523 INFO L168 Benchmark]: Toolchain (without parser) took 363089.03 ms. Allocated memory was 69.2 MB in the beginning and 115.3 MB in the end (delta: 46.1 MB). Free memory was 49.0 MB in the beginning and 25.5 MB in the end (delta: 23.5 MB). Peak memory consumption was 71.8 MB. Max. memory is 16.1 GB. [2021-10-21 20:31:42,523 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 69.2 MB. Free memory was 50.1 MB in the beginning and 50.0 MB in the end (delta: 54.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 20:31:42,524 INFO L168 Benchmark]: CACSL2BoogieTranslator took 898.56 ms. Allocated memory is still 69.2 MB. Free memory was 48.8 MB in the beginning and 40.0 MB in the end (delta: 8.8 MB). Peak memory consumption was 20.3 MB. Max. memory is 16.1 GB. [2021-10-21 20:31:42,524 INFO L168 Benchmark]: Boogie Preprocessor took 183.78 ms. Allocated memory is still 69.2 MB. Free memory was 40.0 MB in the beginning and 34.8 MB in the end (delta: 5.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-21 20:31:42,525 INFO L168 Benchmark]: RCFGBuilder took 1842.15 ms. Allocated memory was 69.2 MB in the beginning and 83.9 MB in the end (delta: 14.7 MB). Free memory was 34.8 MB in the beginning and 40.6 MB in the end (delta: -5.7 MB). Peak memory consumption was 14.0 MB. Max. memory is 16.1 GB. [2021-10-21 20:31:42,525 INFO L168 Benchmark]: TraceAbstraction took 360140.61 ms. Allocated memory was 83.9 MB in the beginning and 115.3 MB in the end (delta: 31.5 MB). Free memory was 40.2 MB in the beginning and 25.5 MB in the end (delta: 14.6 MB). Peak memory consumption was 50.0 MB. Max. memory is 16.1 GB. [2021-10-21 20:31:42,526 INFO L168 Benchmark]: Witness Printer took 5.41 ms. Allocated memory is still 115.3 MB. Free memory is still 25.5 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 20:31:42,528 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 69.2 MB. Free memory was 50.1 MB in the beginning and 50.0 MB in the end (delta: 54.8 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 898.56 ms. Allocated memory is still 69.2 MB. Free memory was 48.8 MB in the beginning and 40.0 MB in the end (delta: 8.8 MB). Peak memory consumption was 20.3 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 183.78 ms. Allocated memory is still 69.2 MB. Free memory was 40.0 MB in the beginning and 34.8 MB in the end (delta: 5.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1842.15 ms. Allocated memory was 69.2 MB in the beginning and 83.9 MB in the end (delta: 14.7 MB). Free memory was 34.8 MB in the beginning and 40.6 MB in the end (delta: -5.7 MB). Peak memory consumption was 14.0 MB. Max. memory is 16.1 GB. * TraceAbstraction took 360140.61 ms. Allocated memory was 83.9 MB in the beginning and 115.3 MB in the end (delta: 31.5 MB). Free memory was 40.2 MB in the beginning and 25.5 MB in the end (delta: 14.6 MB). Peak memory consumption was 50.0 MB. Max. memory is 16.1 GB. * Witness Printer took 5.41 ms. Allocated memory is still 115.3 MB. Free memory is still 25.5 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 786]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: unable to decide satisfiability of path constraint, overapproximation of memtrack at line 786. Possible FailurePath: [L569] struct ldv_list_head ldv_global_msg_list = { &(ldv_global_msg_list), &(ldv_global_msg_list) }; [L787] CALL entry_point() [L773] CALL, EXPR ldv_malloc(sizeof(struct A10)) [L526] COND TRUE __VERIFIER_nondet_int() [L527] return malloc(size); [L773] RET, EXPR ldv_malloc(sizeof(struct A10)) [L773] struct A10 *a10 = (struct A10 *)ldv_malloc(sizeof(struct A10)); [L774] COND FALSE !(!a10) [L775] CALL, EXPR ldv_malloc(sizeof(struct B10)) [L526] COND FALSE !(__VERIFIER_nondet_int()) [L529] return 0; [L775] RET, EXPR ldv_malloc(sizeof(struct B10)) [L775] a10->b = (struct B10 *)ldv_malloc(sizeof(struct B10)) [L776] EXPR a10->b [L776] COND TRUE !a10->b [L784] free(a10) [L784] free(a10) [L784] free(a10) [L787] RET entry_point() - UnprovableResult [Line: 578]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 578]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 682]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 682]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 658]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 658]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 660]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 660]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 540]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 540]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 541]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 541]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 547]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 547]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 548]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 548]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 549]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 549]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 550]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 550]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 623]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 623]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 554]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 554]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 555]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 555]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 666]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 666]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 668]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 668]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 559]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 559]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 767]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 767]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 767]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 767]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 767]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 767]: 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: 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: 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: 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: 770]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 770]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 770]: Unable to prove that free always succeeds Unable to prove that free 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: 775]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 775]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 776]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 776]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 777]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 777]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 777]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 777]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 778]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 778]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 778]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 778]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 780]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 780]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 780]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 780]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 780]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 780]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 780]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 782]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 782]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 782]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 782]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 782]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 784]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 784]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 784]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 49 procedures, 414 locations, 113 error locations. Started 1 CEGAR loops. OverallTime: 360055.6ms, OverallIterations: 10, TraceHistogramMax: 3, EmptinessCheckTime: 36.8ms, AutomataDifference: 283967.8ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 39.0ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 735 SDtfs, 1072 SDslu, 2637 SDs, 0 SdLazy, 3265 SolverSat, 283 SolverUnsat, 99 SolverUnknown, 0 SolverNotchecked, 228161.3ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 423 GetRequests, 314 SyntacticMatches, 10 SemanticMatches, 99 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 189 ImplicationChecksByTransitivity, 76327.8ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=156occurred in iteration=0, InterpolantAutomatonStates: 87, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 186.3ms AutomataMinimizationTime, 9 MinimizatonAttempts, 394 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 114.8ms SsaConstructionTime, 334.9ms SatisfiabilityAnalysisTime, 35190.1ms InterpolantComputationTime, 195 NumberOfCodeBlocks, 195 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 372 ConstructedInterpolants, 41 QuantifiedInterpolants, 2335 SizeOfPredicates, 28 NumberOfNonLiveVariables, 889 ConjunctsInSsa, 77 ConjunctsInUnsatCore, 18 InterpolantComputations, 7 PerfectInterpolantSequences, 62/88 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 [2021-10-21 20:31:42,657 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19c86ef6-c926-42c5-95ef-aa28594bc139/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...