./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/ldv-memsafety/memleaks_test9.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 57096758 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06d08a9d-b95e-49a8-94eb-430a65c2e02f/bin/uautomizer-hJ6jxDFKc3/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06d08a9d-b95e-49a8-94eb-430a65c2e02f/bin/uautomizer-hJ6jxDFKc3/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06d08a9d-b95e-49a8-94eb-430a65c2e02f/bin/uautomizer-hJ6jxDFKc3/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06d08a9d-b95e-49a8-94eb-430a65c2e02f/bin/uautomizer-hJ6jxDFKc3/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test9.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06d08a9d-b95e-49a8-94eb-430a65c2e02f/bin/uautomizer-hJ6jxDFKc3/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06d08a9d-b95e-49a8-94eb-430a65c2e02f/bin/uautomizer-hJ6jxDFKc3 --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 4e0e1098f21fb27be4a1372259b2e0fa3db81f74 ................................................................................................................................... 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_06d08a9d-b95e-49a8-94eb-430a65c2e02f/bin/uautomizer-hJ6jxDFKc3/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06d08a9d-b95e-49a8-94eb-430a65c2e02f/bin/uautomizer-hJ6jxDFKc3/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06d08a9d-b95e-49a8-94eb-430a65c2e02f/bin/uautomizer-hJ6jxDFKc3/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06d08a9d-b95e-49a8-94eb-430a65c2e02f/bin/uautomizer-hJ6jxDFKc3/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test9.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06d08a9d-b95e-49a8-94eb-430a65c2e02f/bin/uautomizer-hJ6jxDFKc3/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06d08a9d-b95e-49a8-94eb-430a65c2e02f/bin/uautomizer-hJ6jxDFKc3 --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 4e0e1098f21fb27be4a1372259b2e0fa3db81f74 ....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN --- Real Ultimate output --- This is Ultimate 0.2.1-dev-5709675 [2021-10-15 19:50:09,494 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-15 19:50:09,496 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-15 19:50:09,528 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-15 19:50:09,529 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-15 19:50:09,530 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-15 19:50:09,532 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-15 19:50:09,535 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-15 19:50:09,537 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-15 19:50:09,538 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-15 19:50:09,539 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-15 19:50:09,541 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-15 19:50:09,542 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-15 19:50:09,543 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-15 19:50:09,545 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-15 19:50:09,546 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-15 19:50:09,547 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-15 19:50:09,548 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-15 19:50:09,550 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-15 19:50:09,553 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-15 19:50:09,555 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-15 19:50:09,556 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-15 19:50:09,558 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-15 19:50:09,559 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-15 19:50:09,563 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-15 19:50:09,563 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-15 19:50:09,564 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-15 19:50:09,565 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-15 19:50:09,568 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-15 19:50:09,570 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-15 19:50:09,570 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-15 19:50:09,571 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-15 19:50:09,572 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-15 19:50:09,573 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-15 19:50:09,574 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-15 19:50:09,575 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-15 19:50:09,575 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-15 19:50:09,576 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-15 19:50:09,576 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-15 19:50:09,577 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-15 19:50:09,578 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-15 19:50:09,583 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06d08a9d-b95e-49a8-94eb-430a65c2e02f/bin/uautomizer-hJ6jxDFKc3/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2021-10-15 19:50:09,624 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-15 19:50:09,632 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-15 19:50:09,633 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-15 19:50:09,633 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-15 19:50:09,635 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-15 19:50:09,635 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-15 19:50:09,636 INFO L138 SettingsManager]: * Use SBE=true [2021-10-15 19:50:09,636 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-15 19:50:09,636 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-15 19:50:09,636 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-15 19:50:09,637 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-15 19:50:09,638 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-15 19:50:09,638 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-15 19:50:09,638 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-10-15 19:50:09,638 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-10-15 19:50:09,638 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-10-15 19:50:09,639 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-15 19:50:09,639 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-15 19:50:09,639 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-15 19:50:09,639 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-15 19:50:09,639 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-15 19:50:09,640 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-15 19:50:09,640 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-15 19:50:09,640 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-15 19:50:09,640 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-15 19:50:09,641 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-15 19:50:09,641 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-15 19:50:09,641 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-15 19:50:09,641 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-15 19:50:09,643 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_06d08a9d-b95e-49a8-94eb-430a65c2e02f/bin/uautomizer-hJ6jxDFKc3/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06d08a9d-b95e-49a8-94eb-430a65c2e02f/bin/uautomizer-hJ6jxDFKc3 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4e0e1098f21fb27be4a1372259b2e0fa3db81f74 [2021-10-15 19:50:09,959 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-15 19:50:09,989 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-15 19:50:09,992 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-15 19:50:09,996 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-15 19:50:09,997 INFO L275 PluginConnector]: CDTParser initialized [2021-10-15 19:50:09,998 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06d08a9d-b95e-49a8-94eb-430a65c2e02f/bin/uautomizer-hJ6jxDFKc3/../../sv-benchmarks/c/ldv-memsafety/memleaks_test9.i [2021-10-15 19:50:10,067 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06d08a9d-b95e-49a8-94eb-430a65c2e02f/bin/uautomizer-hJ6jxDFKc3/data/19fca561f/eb59e9e75527477a9dc3551ef4816350/FLAGb5218f33c [2021-10-15 19:50:10,722 INFO L306 CDTParser]: Found 1 translation units. [2021-10-15 19:50:10,722 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06d08a9d-b95e-49a8-94eb-430a65c2e02f/sv-benchmarks/c/ldv-memsafety/memleaks_test9.i [2021-10-15 19:50:10,742 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06d08a9d-b95e-49a8-94eb-430a65c2e02f/bin/uautomizer-hJ6jxDFKc3/data/19fca561f/eb59e9e75527477a9dc3551ef4816350/FLAGb5218f33c [2021-10-15 19:50:10,968 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06d08a9d-b95e-49a8-94eb-430a65c2e02f/bin/uautomizer-hJ6jxDFKc3/data/19fca561f/eb59e9e75527477a9dc3551ef4816350 [2021-10-15 19:50:10,970 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-15 19:50:10,971 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-10-15 19:50:10,977 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-15 19:50:10,977 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-15 19:50:10,981 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-15 19:50:10,981 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 07:50:10" (1/1) ... [2021-10-15 19:50:10,984 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c72a1f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:50:10, skipping insertion in model container [2021-10-15 19:50:10,985 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 07:50:10" (1/1) ... [2021-10-15 19:50:10,992 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-15 19:50:11,041 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-15 19:50:11,460 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-15 19:50:11,476 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) [2021-10-15 19:50:11,477 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@6f7df981 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:50:11, skipping insertion in model container [2021-10-15 19:50:11,477 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-15 19:50:11,481 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.preprocessor [2021-10-15 19:50:11,485 INFO L168 Benchmark]: Toolchain (without parser) took 510.86 ms. Allocated memory was 88.1 MB in the beginning and 109.1 MB in the end (delta: 21.0 MB). Free memory was 51.5 MB in the beginning and 81.0 MB in the end (delta: -29.6 MB). Peak memory consumption was 6.5 MB. Max. memory is 16.1 GB. [2021-10-15 19:50:11,486 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 88.1 MB. Free memory was 69.3 MB in the beginning and 69.2 MB in the end (delta: 43.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-15 19:50:11,488 INFO L168 Benchmark]: CACSL2BoogieTranslator took 504.30 ms. Allocated memory was 88.1 MB in the beginning and 109.1 MB in the end (delta: 21.0 MB). Free memory was 51.3 MB in the beginning and 81.0 MB in the end (delta: -29.8 MB). Peak memory consumption was 6.5 MB. Max. memory is 16.1 GB. [2021-10-15 19:50:11,490 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 88.1 MB. Free memory was 69.3 MB in the beginning and 69.2 MB in the end (delta: 43.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 504.30 ms. Allocated memory was 88.1 MB in the beginning and 109.1 MB in the end (delta: 21.0 MB). Free memory was 51.3 MB in the beginning and 81.0 MB in the end (delta: -29.8 MB). Peak memory consumption was 6.5 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-5709675 [2021-10-15 19:50:13,776 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-15 19:50:13,778 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-15 19:50:13,811 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-15 19:50:13,813 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-15 19:50:13,815 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-15 19:50:13,819 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-15 19:50:13,824 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-15 19:50:13,829 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-15 19:50:13,832 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-15 19:50:13,834 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-15 19:50:13,837 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-15 19:50:13,837 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-15 19:50:13,844 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-15 19:50:13,846 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-15 19:50:13,848 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-15 19:50:13,851 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-15 19:50:13,852 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-15 19:50:13,867 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-15 19:50:13,872 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-15 19:50:13,877 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-15 19:50:13,881 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-15 19:50:13,883 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-15 19:50:13,884 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-15 19:50:13,889 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-15 19:50:13,894 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-15 19:50:13,895 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-15 19:50:13,896 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-15 19:50:13,898 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-15 19:50:13,899 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-15 19:50:13,899 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-15 19:50:13,900 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-15 19:50:13,902 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-15 19:50:13,903 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-15 19:50:13,907 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-15 19:50:13,908 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-15 19:50:13,909 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-15 19:50:13,909 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-15 19:50:13,909 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-15 19:50:13,911 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-15 19:50:13,912 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-15 19:50:13,917 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06d08a9d-b95e-49a8-94eb-430a65c2e02f/bin/uautomizer-hJ6jxDFKc3/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2021-10-15 19:50:13,958 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-15 19:50:13,959 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-15 19:50:13,959 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-15 19:50:13,960 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-15 19:50:13,962 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-15 19:50:13,962 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-15 19:50:13,962 INFO L138 SettingsManager]: * Use SBE=true [2021-10-15 19:50:13,962 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-15 19:50:13,963 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-15 19:50:13,963 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-15 19:50:13,964 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-15 19:50:13,964 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-15 19:50:13,964 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-15 19:50:13,965 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-10-15 19:50:13,965 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-10-15 19:50:13,965 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-10-15 19:50:13,965 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-15 19:50:13,965 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-15 19:50:13,966 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-15 19:50:13,966 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-15 19:50:13,966 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-15 19:50:13,966 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-15 19:50:13,967 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-15 19:50:13,967 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-15 19:50:13,967 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-15 19:50:13,967 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-15 19:50:13,968 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-15 19:50:13,968 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-15 19:50:13,968 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-10-15 19:50:13,968 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-15 19:50:13,969 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-15 19:50:13,969 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-15 19:50:13,969 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_06d08a9d-b95e-49a8-94eb-430a65c2e02f/bin/uautomizer-hJ6jxDFKc3/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06d08a9d-b95e-49a8-94eb-430a65c2e02f/bin/uautomizer-hJ6jxDFKc3 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4e0e1098f21fb27be4a1372259b2e0fa3db81f74 [2021-10-15 19:50:14,402 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-15 19:50:14,440 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-15 19:50:14,443 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-15 19:50:14,444 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-15 19:50:14,445 INFO L275 PluginConnector]: CDTParser initialized [2021-10-15 19:50:14,446 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06d08a9d-b95e-49a8-94eb-430a65c2e02f/bin/uautomizer-hJ6jxDFKc3/../../sv-benchmarks/c/ldv-memsafety/memleaks_test9.i [2021-10-15 19:50:14,520 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06d08a9d-b95e-49a8-94eb-430a65c2e02f/bin/uautomizer-hJ6jxDFKc3/data/1b67a176a/441a159cee91408aae3d336067588c7b/FLAG03d096d41 [2021-10-15 19:50:15,132 INFO L306 CDTParser]: Found 1 translation units. [2021-10-15 19:50:15,133 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06d08a9d-b95e-49a8-94eb-430a65c2e02f/sv-benchmarks/c/ldv-memsafety/memleaks_test9.i [2021-10-15 19:50:15,148 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06d08a9d-b95e-49a8-94eb-430a65c2e02f/bin/uautomizer-hJ6jxDFKc3/data/1b67a176a/441a159cee91408aae3d336067588c7b/FLAG03d096d41 [2021-10-15 19:50:15,371 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06d08a9d-b95e-49a8-94eb-430a65c2e02f/bin/uautomizer-hJ6jxDFKc3/data/1b67a176a/441a159cee91408aae3d336067588c7b [2021-10-15 19:50:15,373 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-15 19:50:15,374 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-10-15 19:50:15,375 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-15 19:50:15,375 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-15 19:50:15,384 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-15 19:50:15,385 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 07:50:15" (1/1) ... [2021-10-15 19:50:15,386 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@242642e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:50:15, skipping insertion in model container [2021-10-15 19:50:15,386 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 07:50:15" (1/1) ... [2021-10-15 19:50:15,394 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-15 19:50:15,436 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-15 19:50:15,916 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-15 19:50:15,933 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-10-15 19:50:15,944 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-15 19:50:15,986 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-15 19:50:15,995 INFO L203 MainTranslator]: Completed pre-run [2021-10-15 19:50:16,085 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-15 19:50:16,147 INFO L208 MainTranslator]: Completed translation [2021-10-15 19:50:16,147 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:50:16 WrapperNode [2021-10-15 19:50:16,147 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-15 19:50:16,148 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-15 19:50:16,148 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-15 19:50:16,149 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-15 19:50:16,159 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:50:16" (1/1) ... [2021-10-15 19:50:16,159 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:50:16" (1/1) ... [2021-10-15 19:50:16,186 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:50:16" (1/1) ... [2021-10-15 19:50:16,196 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:50:16" (1/1) ... [2021-10-15 19:50:16,243 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:50:16" (1/1) ... [2021-10-15 19:50:16,249 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:50:16" (1/1) ... [2021-10-15 19:50:16,255 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:50:16" (1/1) ... [2021-10-15 19:50:16,266 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-15 19:50:16,267 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-15 19:50:16,267 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-15 19:50:16,267 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-15 19:50:16,268 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:50:16" (1/1) ... [2021-10-15 19:50:16,275 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-15 19:50:16,288 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06d08a9d-b95e-49a8-94eb-430a65c2e02f/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:50:16,300 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06d08a9d-b95e-49a8-94eb-430a65c2e02f/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-15 19:50:16,303 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06d08a9d-b95e-49a8-94eb-430a65c2e02f/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-15 19:50:16,336 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-10-15 19:50:16,337 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-15 19:50:16,337 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-10-15 19:50:16,337 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.setCurrentRoundingMode [2021-10-15 19:50:16,337 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2021-10-15 19:50:16,338 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2021-10-15 19:50:16,338 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2021-10-15 19:50:16,338 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2021-10-15 19:50:16,338 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2021-10-15 19:50:16,338 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_nonpositive [2021-10-15 19:50:16,338 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_positive [2021-10-15 19:50:16,339 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-10-15 19:50:16,339 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-10-15 19:50:16,339 INFO L138 BoogieDeclarations]: Found implementation of procedure LDV_INIT_LIST_HEAD [2021-10-15 19:50:16,339 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2021-10-15 19:50:16,339 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_del [2021-10-15 19:50:16,340 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add [2021-10-15 19:50:16,340 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add_tail [2021-10-15 19:50:16,340 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_del [2021-10-15 19:50:16,340 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_alloc [2021-10-15 19:50:16,340 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_fill [2021-10-15 19:50:16,341 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_free [2021-10-15 19:50:16,341 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_msg [2021-10-15 19:50:16,341 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_destroy_msgs [2021-10-15 19:50:16,341 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2021-10-15 19:50:16,341 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-10-15 19:50:16,341 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_add_return [2021-10-15 19:50:16,342 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_sub_return [2021-10-15 19:50:16,342 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_sub [2021-10-15 19:50:16,342 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_init [2021-10-15 19:50:16,342 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_get [2021-10-15 19:50:16,342 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_put [2021-10-15 19:50:16,343 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_del [2021-10-15 19:50:16,343 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_cleanup [2021-10-15 19:50:16,343 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_release [2021-10-15 19:50:16,343 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_put [2021-10-15 19:50:16,343 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_get [2021-10-15 19:50:16,344 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init_internal [2021-10-15 19:50:16,344 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init [2021-10-15 19:50:16,344 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_create [2021-10-15 19:50:16,344 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2021-10-15 19:50:16,344 INFO L138 BoogieDeclarations]: Found implementation of procedure g [2021-10-15 19:50:16,344 INFO L138 BoogieDeclarations]: Found implementation of procedure probe_9 [2021-10-15 19:50:16,345 INFO L138 BoogieDeclarations]: Found implementation of procedure disconnect_9 [2021-10-15 19:50:16,345 INFO L138 BoogieDeclarations]: Found implementation of procedure entry_point [2021-10-15 19:50:16,345 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-10-15 19:50:16,345 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-10-15 19:50:16,345 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-10-15 19:50:16,346 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-10-15 19:50:16,346 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2021-10-15 19:50:16,346 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2021-10-15 19:50:16,346 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2021-10-15 19:50:16,346 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2021-10-15 19:50:16,347 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2021-10-15 19:50:16,347 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2021-10-15 19:50:16,347 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2021-10-15 19:50:16,347 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2021-10-15 19:50:16,347 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2021-10-15 19:50:16,347 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2021-10-15 19:50:16,348 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2021-10-15 19:50:16,348 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2021-10-15 19:50:16,348 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2021-10-15 19:50:16,348 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2021-10-15 19:50:16,348 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2021-10-15 19:50:16,349 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2021-10-15 19:50:16,349 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2021-10-15 19:50:16,349 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2021-10-15 19:50:16,349 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2021-10-15 19:50:16,349 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2021-10-15 19:50:16,350 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2021-10-15 19:50:16,350 INFO L130 BoogieDeclarations]: Found specification of procedure select [2021-10-15 19:50:16,350 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2021-10-15 19:50:16,350 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2021-10-15 19:50:16,350 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2021-10-15 19:50:16,350 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2021-10-15 19:50:16,351 INFO L130 BoogieDeclarations]: Found specification of procedure random [2021-10-15 19:50:16,351 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2021-10-15 19:50:16,351 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2021-10-15 19:50:16,351 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2021-10-15 19:50:16,351 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2021-10-15 19:50:16,352 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2021-10-15 19:50:16,352 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2021-10-15 19:50:16,352 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2021-10-15 19:50:16,352 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2021-10-15 19:50:16,352 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2021-10-15 19:50:16,353 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2021-10-15 19:50:16,353 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2021-10-15 19:50:16,353 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2021-10-15 19:50:16,353 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2021-10-15 19:50:16,353 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2021-10-15 19:50:16,353 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2021-10-15 19:50:16,354 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2021-10-15 19:50:16,354 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2021-10-15 19:50:16,354 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2021-10-15 19:50:16,354 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2021-10-15 19:50:16,354 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2021-10-15 19:50:16,355 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2021-10-15 19:50:16,355 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2021-10-15 19:50:16,355 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2021-10-15 19:50:16,355 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2021-10-15 19:50:16,355 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2021-10-15 19:50:16,355 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2021-10-15 19:50:16,356 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2021-10-15 19:50:16,356 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2021-10-15 19:50:16,356 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2021-10-15 19:50:16,356 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2021-10-15 19:50:16,356 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2021-10-15 19:50:16,357 INFO L130 BoogieDeclarations]: Found specification of procedure free [2021-10-15 19:50:16,357 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2021-10-15 19:50:16,357 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2021-10-15 19:50:16,357 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2021-10-15 19:50:16,357 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2021-10-15 19:50:16,358 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-10-15 19:50:16,358 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2021-10-15 19:50:16,358 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2021-10-15 19:50:16,358 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2021-10-15 19:50:16,358 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2021-10-15 19:50:16,358 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2021-10-15 19:50:16,359 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2021-10-15 19:50:16,359 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2021-10-15 19:50:16,359 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2021-10-15 19:50:16,359 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2021-10-15 19:50:16,359 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2021-10-15 19:50:16,360 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2021-10-15 19:50:16,360 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2021-10-15 19:50:16,360 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2021-10-15 19:50:16,360 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2021-10-15 19:50:16,360 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2021-10-15 19:50:16,361 INFO L130 BoogieDeclarations]: Found specification of procedure system [2021-10-15 19:50:16,361 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2021-10-15 19:50:16,361 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2021-10-15 19:50:16,361 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2021-10-15 19:50:16,361 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2021-10-15 19:50:16,361 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2021-10-15 19:50:16,362 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2021-10-15 19:50:16,362 INFO L130 BoogieDeclarations]: Found specification of procedure div [2021-10-15 19:50:16,362 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2021-10-15 19:50:16,362 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2021-10-15 19:50:16,362 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2021-10-15 19:50:16,362 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2021-10-15 19:50:16,363 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2021-10-15 19:50:16,363 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2021-10-15 19:50:16,363 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2021-10-15 19:50:16,363 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2021-10-15 19:50:16,363 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2021-10-15 19:50:16,363 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2021-10-15 19:50:16,364 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2021-10-15 19:50:16,364 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2021-10-15 19:50:16,364 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2021-10-15 19:50:16,364 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2021-10-15 19:50:16,364 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2021-10-15 19:50:16,364 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2021-10-15 19:50:16,365 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2021-10-15 19:50:16,365 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2021-10-15 19:50:16,365 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2021-10-15 19:50:16,365 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2021-10-15 19:50:16,365 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-10-15 19:50:16,366 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-10-15 19:50:16,366 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_nonpositive [2021-10-15 19:50:16,366 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_positive [2021-10-15 19:50:16,366 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2021-10-15 19:50:16,366 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2021-10-15 19:50:16,366 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-10-15 19:50:16,367 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-15 19:50:16,367 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-10-15 19:50:16,367 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-10-15 19:50:16,367 INFO L130 BoogieDeclarations]: Found specification of procedure LDV_INIT_LIST_HEAD [2021-10-15 19:50:16,367 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-10-15 19:50:16,367 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2021-10-15 19:50:16,368 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_del [2021-10-15 19:50:16,368 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add [2021-10-15 19:50:16,368 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-10-15 19:50:16,368 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add_tail [2021-10-15 19:50:16,368 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_del [2021-10-15 19:50:16,369 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_alloc [2021-10-15 19:50:16,369 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_fill [2021-10-15 19:50:16,369 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-10-15 19:50:16,369 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_free [2021-10-15 19:50:16,369 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-15 19:50:16,369 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_msg [2021-10-15 19:50:16,370 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_destroy_msgs [2021-10-15 19:50:16,370 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2021-10-15 19:50:16,370 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-10-15 19:50:16,370 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_add_return [2021-10-15 19:50:16,370 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-10-15 19:50:16,370 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-10-15 19:50:16,371 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_sub_return [2021-10-15 19:50:16,371 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_sub [2021-10-15 19:50:16,371 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-10-15 19:50:16,371 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_init [2021-10-15 19:50:16,371 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_get [2021-10-15 19:50:16,371 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_put [2021-10-15 19:50:16,372 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_del [2021-10-15 19:50:16,372 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_cleanup [2021-10-15 19:50:16,372 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_release [2021-10-15 19:50:16,372 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_put [2021-10-15 19:50:16,372 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_get [2021-10-15 19:50:16,372 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init_internal [2021-10-15 19:50:16,373 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init [2021-10-15 19:50:16,373 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_create [2021-10-15 19:50:16,373 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-10-15 19:50:16,373 INFO L130 BoogieDeclarations]: Found specification of procedure f [2021-10-15 19:50:16,373 INFO L130 BoogieDeclarations]: Found specification of procedure g [2021-10-15 19:50:16,373 INFO L130 BoogieDeclarations]: Found specification of procedure probe_9 [2021-10-15 19:50:16,374 INFO L130 BoogieDeclarations]: Found specification of procedure disconnect_9 [2021-10-15 19:50:16,374 INFO L130 BoogieDeclarations]: Found specification of procedure entry_point [2021-10-15 19:50:16,374 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-10-15 19:50:16,374 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-10-15 19:50:16,374 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-15 19:50:16,374 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-10-15 19:50:16,375 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-15 19:50:16,375 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.setCurrentRoundingMode [2021-10-15 19:50:16,375 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-10-15 19:50:16,375 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-10-15 19:50:16,375 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-10-15 19:50:16,375 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2021-10-15 19:50:17,001 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-15 19:50:17,376 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-15 19:50:17,656 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-15 19:50:17,657 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-10-15 19:50:17,659 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 07:50:17 BoogieIcfgContainer [2021-10-15 19:50:17,660 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-15 19:50:17,661 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-15 19:50:17,662 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-15 19:50:17,665 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-15 19:50:17,665 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 07:50:15" (1/3) ... [2021-10-15 19:50:17,666 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b1fe0d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 07:50:17, skipping insertion in model container [2021-10-15 19:50:17,666 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:50:16" (2/3) ... [2021-10-15 19:50:17,666 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b1fe0d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 07:50:17, skipping insertion in model container [2021-10-15 19:50:17,667 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 07:50:17" (3/3) ... [2021-10-15 19:50:17,668 INFO L111 eAbstractionObserver]: Analyzing ICFG memleaks_test9.i [2021-10-15 19:50:17,673 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-15 19:50:17,674 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 74 error locations. [2021-10-15 19:50:17,710 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-15 19:50:17,715 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, mConcurrency=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 [2021-10-15 19:50:17,715 INFO L340 AbstractCegarLoop]: Starting to check reachability of 74 error locations. [2021-10-15 19:50:17,731 INFO L276 IsEmpty]: Start isEmpty. Operand has 105 states, 58 states have (on average 1.5) internal successors, (87), 80 states have internal predecessors, (87), 13 states have call successors, (13), 12 states have call predecessors, (13), 12 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2021-10-15 19:50:17,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-10-15 19:50:17,739 INFO L504 BasicCegarLoop]: Found error trace [2021-10-15 19:50:17,739 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-15 19:50:17,740 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting disconnect_9Err0ASSERT_VIOLATIONMEMORY_FREE === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 70 more)] === [2021-10-15 19:50:17,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 19:50:17,745 INFO L82 PathProgramCache]: Analyzing trace with hash 426051374, now seen corresponding path program 1 times [2021-10-15 19:50:17,757 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-15 19:50:17,757 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1770649495] [2021-10-15 19:50:17,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 19:50:17,759 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-15 19:50:17,759 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06d08a9d-b95e-49a8-94eb-430a65c2e02f/bin/uautomizer-hJ6jxDFKc3/mathsat [2021-10-15 19:50:17,773 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06d08a9d-b95e-49a8-94eb-430a65c2e02f/bin/uautomizer-hJ6jxDFKc3/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-15 19:50:17,782 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06d08a9d-b95e-49a8-94eb-430a65c2e02f/bin/uautomizer-hJ6jxDFKc3/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-15 19:50:17,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 19:50:17,955 INFO L263 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-15 19:50:17,961 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-15 19:50:18,105 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-15 19:50:18,106 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-15 19:50:18,261 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-15 19:50:18,262 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-15 19:50:18,263 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1770649495] [2021-10-15 19:50:18,264 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1770649495] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-15 19:50:18,264 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-15 19:50:18,265 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-10-15 19:50:18,272 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [591653923] [2021-10-15 19:50:18,277 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-15 19:50:18,278 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-15 19:50:18,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-15 19:50:18,294 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-15 19:50:18,297 INFO L87 Difference]: Start difference. First operand has 105 states, 58 states have (on average 1.5) internal successors, (87), 80 states have internal predecessors, (87), 13 states have call successors, (13), 12 states have call predecessors, (13), 12 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) Second operand has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 2 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2021-10-15 19:50:18,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-15 19:50:18,364 INFO L93 Difference]: Finished difference Result 34 states and 36 transitions. [2021-10-15 19:50:18,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-15 19:50:18,366 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 2 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) Word has length 20 [2021-10-15 19:50:18,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-15 19:50:18,374 INFO L225 Difference]: With dead ends: 34 [2021-10-15 19:50:18,374 INFO L226 Difference]: Without dead ends: 31 [2021-10-15 19:50:18,376 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 38.3ms TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-10-15 19:50:18,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2021-10-15 19:50:18,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2021-10-15 19:50:18,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 17 states have (on average 1.2941176470588236) internal successors, (22), 20 states have internal predecessors, (22), 6 states have call successors, (6), 6 states have call predecessors, (6), 5 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2021-10-15 19:50:18,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 33 transitions. [2021-10-15 19:50:18,413 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 33 transitions. Word has length 20 [2021-10-15 19:50:18,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-15 19:50:18,414 INFO L470 AbstractCegarLoop]: Abstraction has 31 states and 33 transitions. [2021-10-15 19:50:18,414 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 2 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2021-10-15 19:50:18,415 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 33 transitions. [2021-10-15 19:50:18,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-10-15 19:50:18,417 INFO L504 BasicCegarLoop]: Found error trace [2021-10-15 19:50:18,418 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-15 19:50:18,429 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06d08a9d-b95e-49a8-94eb-430a65c2e02f/bin/uautomizer-hJ6jxDFKc3/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-15 19:50:18,624 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06d08a9d-b95e-49a8-94eb-430a65c2e02f/bin/uautomizer-hJ6jxDFKc3/mathsat -unsat_core_generation=3 [2021-10-15 19:50:18,625 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting disconnect_9Err1ASSERT_VIOLATIONMEMORY_FREE === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 70 more)] === [2021-10-15 19:50:18,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 19:50:18,626 INFO L82 PathProgramCache]: Analyzing trace with hash 322691135, now seen corresponding path program 1 times [2021-10-15 19:50:18,626 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-15 19:50:18,627 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [611493282] [2021-10-15 19:50:18,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 19:50:18,627 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-15 19:50:18,628 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06d08a9d-b95e-49a8-94eb-430a65c2e02f/bin/uautomizer-hJ6jxDFKc3/mathsat [2021-10-15 19:50:18,633 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06d08a9d-b95e-49a8-94eb-430a65c2e02f/bin/uautomizer-hJ6jxDFKc3/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-15 19:50:18,642 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06d08a9d-b95e-49a8-94eb-430a65c2e02f/bin/uautomizer-hJ6jxDFKc3/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-15 19:50:18,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 19:50:18,813 INFO L263 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-15 19:50:18,815 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-15 19:50:19,114 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-15 19:50:19,115 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-15 19:50:19,397 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-15 19:50:19,397 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-15 19:50:19,397 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [611493282] [2021-10-15 19:50:19,398 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [611493282] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-15 19:50:19,398 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-15 19:50:19,398 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 4] imperfect sequences [] total 8 [2021-10-15 19:50:19,398 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2067153955] [2021-10-15 19:50:19,400 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-10-15 19:50:19,400 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-15 19:50:19,401 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-15 19:50:19,401 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2021-10-15 19:50:19,401 INFO L87 Difference]: Start difference. First operand 31 states and 33 transitions. Second operand has 9 states, 8 states have (on average 3.0) internal successors, (24), 7 states have internal predecessors, (24), 4 states have call successors, (11), 4 states have call predecessors, (11), 6 states have return successors, (6), 6 states have call predecessors, (6), 2 states have call successors, (6) [2021-10-15 19:50:19,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-15 19:50:19,667 INFO L93 Difference]: Finished difference Result 45 states and 49 transitions. [2021-10-15 19:50:19,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-15 19:50:19,668 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.0) internal successors, (24), 7 states have internal predecessors, (24), 4 states have call successors, (11), 4 states have call predecessors, (11), 6 states have return successors, (6), 6 states have call predecessors, (6), 2 states have call successors, (6) Word has length 21 [2021-10-15 19:50:19,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-15 19:50:19,669 INFO L225 Difference]: With dead ends: 45 [2021-10-15 19:50:19,669 INFO L226 Difference]: Without dead ends: 45 [2021-10-15 19:50:19,670 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 176.9ms TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-10-15 19:50:19,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2021-10-15 19:50:19,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 34. [2021-10-15 19:50:19,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 20 states have (on average 1.2) internal successors, (24), 22 states have internal predecessors, (24), 6 states have call successors, (6), 6 states have call predecessors, (6), 6 states have return successors, (6), 6 states have call predecessors, (6), 5 states have call successors, (6) [2021-10-15 19:50:19,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 36 transitions. [2021-10-15 19:50:19,683 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 36 transitions. Word has length 21 [2021-10-15 19:50:19,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-15 19:50:19,684 INFO L470 AbstractCegarLoop]: Abstraction has 34 states and 36 transitions. [2021-10-15 19:50:19,684 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.0) internal successors, (24), 7 states have internal predecessors, (24), 4 states have call successors, (11), 4 states have call predecessors, (11), 6 states have return successors, (6), 6 states have call predecessors, (6), 2 states have call successors, (6) [2021-10-15 19:50:19,685 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 36 transitions. [2021-10-15 19:50:19,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-10-15 19:50:19,687 INFO L504 BasicCegarLoop]: Found error trace [2021-10-15 19:50:19,687 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-15 19:50:19,704 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06d08a9d-b95e-49a8-94eb-430a65c2e02f/bin/uautomizer-hJ6jxDFKc3/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-10-15 19:50:19,898 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06d08a9d-b95e-49a8-94eb-430a65c2e02f/bin/uautomizer-hJ6jxDFKc3/mathsat -unsat_core_generation=3 [2021-10-15 19:50:19,899 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting disconnect_9Err2ASSERT_VIOLATIONMEMORY_FREE === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 70 more)] === [2021-10-15 19:50:19,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 19:50:19,899 INFO L82 PathProgramCache]: Analyzing trace with hash 1413491024, now seen corresponding path program 1 times [2021-10-15 19:50:19,900 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-15 19:50:19,900 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1901620967] [2021-10-15 19:50:19,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 19:50:19,900 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-15 19:50:19,900 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06d08a9d-b95e-49a8-94eb-430a65c2e02f/bin/uautomizer-hJ6jxDFKc3/mathsat [2021-10-15 19:50:19,901 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06d08a9d-b95e-49a8-94eb-430a65c2e02f/bin/uautomizer-hJ6jxDFKc3/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-15 19:50:19,903 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06d08a9d-b95e-49a8-94eb-430a65c2e02f/bin/uautomizer-hJ6jxDFKc3/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-15 19:50:20,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 19:50:20,107 INFO L263 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-15 19:50:20,109 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-15 19:50:20,178 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 [2021-10-15 19:50:20,260 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-15 19:50:20,261 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-15 19:50:20,405 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-15 19:50:20,406 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-15 19:50:20,406 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1901620967] [2021-10-15 19:50:20,406 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1901620967] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-15 19:50:20,406 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-15 19:50:20,407 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-10-15 19:50:20,407 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [7103332] [2021-10-15 19:50:20,408 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-15 19:50:20,408 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-15 19:50:20,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-15 19:50:20,413 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-15 19:50:20,414 INFO L87 Difference]: Start difference. First operand 34 states and 36 transitions. Second operand has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 2 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2021-10-15 19:50:20,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-15 19:50:20,470 INFO L93 Difference]: Finished difference Result 43 states and 47 transitions. [2021-10-15 19:50:20,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-15 19:50:20,471 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 2 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) Word has length 22 [2021-10-15 19:50:20,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-15 19:50:20,476 INFO L225 Difference]: With dead ends: 43 [2021-10-15 19:50:20,476 INFO L226 Difference]: Without dead ends: 43 [2021-10-15 19:50:20,476 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 38 SyntacticMatches, 2 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 22.9ms TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-15 19:50:20,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2021-10-15 19:50:20,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 42. [2021-10-15 19:50:20,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 26 states have (on average 1.1923076923076923) internal successors, (31), 28 states have internal predecessors, (31), 7 states have call successors, (7), 7 states have call predecessors, (7), 7 states have return successors, (8), 7 states have call predecessors, (8), 6 states have call successors, (8) [2021-10-15 19:50:20,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 46 transitions. [2021-10-15 19:50:20,490 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 46 transitions. Word has length 22 [2021-10-15 19:50:20,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-15 19:50:20,491 INFO L470 AbstractCegarLoop]: Abstraction has 42 states and 46 transitions. [2021-10-15 19:50:20,491 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 2 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2021-10-15 19:50:20,491 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 46 transitions. [2021-10-15 19:50:20,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-10-15 19:50:20,492 INFO L504 BasicCegarLoop]: Found error trace [2021-10-15 19:50:20,492 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-15 19:50:20,503 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06d08a9d-b95e-49a8-94eb-430a65c2e02f/bin/uautomizer-hJ6jxDFKc3/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-10-15 19:50:20,698 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06d08a9d-b95e-49a8-94eb-430a65c2e02f/bin/uautomizer-hJ6jxDFKc3/mathsat -unsat_core_generation=3 [2021-10-15 19:50:20,698 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting disconnect_9Err2ASSERT_VIOLATIONMEMORY_FREE === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 70 more)] === [2021-10-15 19:50:20,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 19:50:20,699 INFO L82 PathProgramCache]: Analyzing trace with hash 1120088017, now seen corresponding path program 1 times [2021-10-15 19:50:20,699 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-15 19:50:20,700 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [147784058] [2021-10-15 19:50:20,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 19:50:20,700 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-15 19:50:20,700 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06d08a9d-b95e-49a8-94eb-430a65c2e02f/bin/uautomizer-hJ6jxDFKc3/mathsat [2021-10-15 19:50:20,701 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06d08a9d-b95e-49a8-94eb-430a65c2e02f/bin/uautomizer-hJ6jxDFKc3/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-15 19:50:20,703 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06d08a9d-b95e-49a8-94eb-430a65c2e02f/bin/uautomizer-hJ6jxDFKc3/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-10-15 19:50:20,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 19:50:20,892 INFO L263 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-15 19:50:20,894 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-15 19:50:20,997 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-15 19:50:20,997 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-15 19:50:21,141 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-15 19:50:21,141 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-15 19:50:21,141 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [147784058] [2021-10-15 19:50:21,141 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [147784058] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-15 19:50:21,142 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-15 19:50:21,142 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-10-15 19:50:21,142 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2015801068] [2021-10-15 19:50:21,142 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-15 19:50:21,142 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-15 19:50:21,143 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-15 19:50:21,143 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-15 19:50:21,143 INFO L87 Difference]: Start difference. First operand 42 states and 46 transitions. Second operand has 5 states, 5 states have (on average 2.6) internal successors, (13), 4 states have internal predecessors, (13), 2 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2021-10-15 19:50:21,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-15 19:50:21,201 INFO L93 Difference]: Finished difference Result 44 states and 46 transitions. [2021-10-15 19:50:21,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-15 19:50:21,202 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 4 states have internal predecessors, (13), 2 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) Word has length 22 [2021-10-15 19:50:21,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-15 19:50:21,203 INFO L225 Difference]: With dead ends: 44 [2021-10-15 19:50:21,203 INFO L226 Difference]: Without dead ends: 44 [2021-10-15 19:50:21,203 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 43.8ms TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-10-15 19:50:21,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2021-10-15 19:50:21,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 33. [2021-10-15 19:50:21,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 20 states have (on average 1.1) internal successors, (22), 21 states have internal predecessors, (22), 6 states have call successors, (6), 6 states have call predecessors, (6), 6 states have return successors, (6), 6 states have call predecessors, (6), 5 states have call successors, (6) [2021-10-15 19:50:21,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 34 transitions. [2021-10-15 19:50:21,208 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 34 transitions. Word has length 22 [2021-10-15 19:50:21,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-15 19:50:21,209 INFO L470 AbstractCegarLoop]: Abstraction has 33 states and 34 transitions. [2021-10-15 19:50:21,209 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 4 states have internal predecessors, (13), 2 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2021-10-15 19:50:21,209 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 34 transitions. [2021-10-15 19:50:21,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-10-15 19:50:21,210 INFO L504 BasicCegarLoop]: Found error trace [2021-10-15 19:50:21,210 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-15 19:50:21,226 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06d08a9d-b95e-49a8-94eb-430a65c2e02f/bin/uautomizer-hJ6jxDFKc3/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-10-15 19:50:21,420 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06d08a9d-b95e-49a8-94eb-430a65c2e02f/bin/uautomizer-hJ6jxDFKc3/mathsat -unsat_core_generation=3 [2021-10-15 19:50:21,421 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting mainErr0ENSURES_VIOLATIONMEMORY_LEAK === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 70 more)] === [2021-10-15 19:50:21,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 19:50:21,421 INFO L82 PathProgramCache]: Analyzing trace with hash 1413668411, now seen corresponding path program 1 times [2021-10-15 19:50:21,422 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-15 19:50:21,422 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1405652139] [2021-10-15 19:50:21,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 19:50:21,422 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-15 19:50:21,423 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06d08a9d-b95e-49a8-94eb-430a65c2e02f/bin/uautomizer-hJ6jxDFKc3/mathsat [2021-10-15 19:50:21,424 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06d08a9d-b95e-49a8-94eb-430a65c2e02f/bin/uautomizer-hJ6jxDFKc3/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-15 19:50:21,425 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06d08a9d-b95e-49a8-94eb-430a65c2e02f/bin/uautomizer-hJ6jxDFKc3/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-10-15 19:50:21,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 19:50:21,613 INFO L263 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-15 19:50:21,615 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-15 19:50:21,681 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-15 19:50:21,681 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-15 19:50:21,777 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-15 19:50:21,777 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-15 19:50:21,777 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1405652139] [2021-10-15 19:50:21,778 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1405652139] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-15 19:50:21,778 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-15 19:50:21,778 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-10-15 19:50:21,778 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1919580716] [2021-10-15 19:50:21,779 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-15 19:50:21,779 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-15 19:50:21,779 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-15 19:50:21,780 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-15 19:50:21,780 INFO L87 Difference]: Start difference. First operand 33 states and 34 transitions. Second operand has 5 states, 5 states have (on average 2.6) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (5), 1 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 1 states have call successors, (4) [2021-10-15 19:50:21,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-15 19:50:21,792 INFO L93 Difference]: Finished difference Result 40 states and 41 transitions. [2021-10-15 19:50:21,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-15 19:50:21,793 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (5), 1 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 1 states have call successors, (4) Word has length 22 [2021-10-15 19:50:21,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-15 19:50:21,794 INFO L225 Difference]: With dead ends: 40 [2021-10-15 19:50:21,794 INFO L226 Difference]: Without dead ends: 40 [2021-10-15 19:50:21,794 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 9.1ms TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-15 19:50:21,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2021-10-15 19:50:21,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 37. [2021-10-15 19:50:21,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 23 states have (on average 1.0869565217391304) internal successors, (25), 24 states have internal predecessors, (25), 6 states have call successors, (6), 6 states have call predecessors, (6), 7 states have return successors, (7), 7 states have call predecessors, (7), 5 states have call successors, (7) [2021-10-15 19:50:21,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 38 transitions. [2021-10-15 19:50:21,799 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 38 transitions. Word has length 22 [2021-10-15 19:50:21,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-15 19:50:21,800 INFO L470 AbstractCegarLoop]: Abstraction has 37 states and 38 transitions. [2021-10-15 19:50:21,800 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (5), 1 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 1 states have call successors, (4) [2021-10-15 19:50:21,800 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 38 transitions. [2021-10-15 19:50:21,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-10-15 19:50:21,801 INFO L504 BasicCegarLoop]: Found error trace [2021-10-15 19:50:21,801 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-15 19:50:21,820 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06d08a9d-b95e-49a8-94eb-430a65c2e02f/bin/uautomizer-hJ6jxDFKc3/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-10-15 19:50:22,013 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06d08a9d-b95e-49a8-94eb-430a65c2e02f/bin/uautomizer-hJ6jxDFKc3/mathsat -unsat_core_generation=3 [2021-10-15 19:50:22,013 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting mainErr0ENSURES_VIOLATIONMEMORY_LEAK === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 70 more)] === [2021-10-15 19:50:22,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 19:50:22,014 INFO L82 PathProgramCache]: Analyzing trace with hash -687189059, now seen corresponding path program 1 times [2021-10-15 19:50:22,014 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-15 19:50:22,014 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1689272967] [2021-10-15 19:50:22,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 19:50:22,014 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-15 19:50:22,014 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06d08a9d-b95e-49a8-94eb-430a65c2e02f/bin/uautomizer-hJ6jxDFKc3/mathsat [2021-10-15 19:50:22,015 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06d08a9d-b95e-49a8-94eb-430a65c2e02f/bin/uautomizer-hJ6jxDFKc3/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-15 19:50:22,016 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06d08a9d-b95e-49a8-94eb-430a65c2e02f/bin/uautomizer-hJ6jxDFKc3/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-10-15 19:50:22,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 19:50:22,216 INFO L263 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-15 19:50:22,218 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-15 19:50:22,293 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-15 19:50:22,294 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-15 19:50:22,444 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-15 19:50:22,444 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-15 19:50:22,444 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1689272967] [2021-10-15 19:50:22,444 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1689272967] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-15 19:50:22,444 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-15 19:50:22,445 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-10-15 19:50:22,445 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [440376032] [2021-10-15 19:50:22,445 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-15 19:50:22,445 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-15 19:50:22,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-15 19:50:22,446 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-15 19:50:22,446 INFO L87 Difference]: Start difference. First operand 37 states and 38 transitions. Second operand has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-10-15 19:50:22,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-15 19:50:22,484 INFO L93 Difference]: Finished difference Result 42 states and 43 transitions. [2021-10-15 19:50:22,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-15 19:50:22,484 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 22 [2021-10-15 19:50:22,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-15 19:50:22,485 INFO L225 Difference]: With dead ends: 42 [2021-10-15 19:50:22,485 INFO L226 Difference]: Without dead ends: 38 [2021-10-15 19:50:22,486 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.3ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-15 19:50:22,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2021-10-15 19:50:22,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 33. [2021-10-15 19:50:22,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 20 states have (on average 1.05) internal successors, (21), 20 states have internal predecessors, (21), 6 states have call successors, (6), 6 states have call predecessors, (6), 6 states have return successors, (6), 6 states have call predecessors, (6), 5 states have call successors, (6) [2021-10-15 19:50:22,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 33 transitions. [2021-10-15 19:50:22,492 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 33 transitions. Word has length 22 [2021-10-15 19:50:22,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-15 19:50:22,493 INFO L470 AbstractCegarLoop]: Abstraction has 33 states and 33 transitions. [2021-10-15 19:50:22,493 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-10-15 19:50:22,493 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 33 transitions. [2021-10-15 19:50:22,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-10-15 19:50:22,494 INFO L504 BasicCegarLoop]: Found error trace [2021-10-15 19:50:22,494 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-15 19:50:22,509 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06d08a9d-b95e-49a8-94eb-430a65c2e02f/bin/uautomizer-hJ6jxDFKc3/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-10-15 19:50:22,705 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06d08a9d-b95e-49a8-94eb-430a65c2e02f/bin/uautomizer-hJ6jxDFKc3/mathsat -unsat_core_generation=3 [2021-10-15 19:50:22,706 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting mainErr0ENSURES_VIOLATIONMEMORY_LEAK === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 70 more)] === [2021-10-15 19:50:22,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 19:50:22,706 INFO L82 PathProgramCache]: Analyzing trace with hash -2013122506, now seen corresponding path program 1 times [2021-10-15 19:50:22,707 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-15 19:50:22,707 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [589215893] [2021-10-15 19:50:22,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 19:50:22,708 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-15 19:50:22,708 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06d08a9d-b95e-49a8-94eb-430a65c2e02f/bin/uautomizer-hJ6jxDFKc3/mathsat [2021-10-15 19:50:22,709 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06d08a9d-b95e-49a8-94eb-430a65c2e02f/bin/uautomizer-hJ6jxDFKc3/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-15 19:50:22,714 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06d08a9d-b95e-49a8-94eb-430a65c2e02f/bin/uautomizer-hJ6jxDFKc3/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-10-15 19:50:22,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 19:50:22,961 INFO L263 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 16 conjunts are in the unsatisfiable core [2021-10-15 19:50:22,963 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-15 19:50:23,140 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 9 treesize of output 7 [2021-10-15 19:50:23,261 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-15 19:50:23,262 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-15 19:50:27,509 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_old(#valid)_BEFORE_CALL_11| (Array (_ BitVec 32) (_ BitVec 1)))) (or (= |v_old(#valid)_BEFORE_CALL_11| |c_#valid|) (exists ((v_~a9~0.base_93 (_ BitVec 32))) (and (not (= (store |c_old(#valid)| v_~a9~0.base_93 (_ bv0 1)) |v_old(#valid)_BEFORE_CALL_11|)) (= (_ bv0 1) (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (select |c_old(#valid)| v_~a9~0.base_93)))))))))))) is different from false [2021-10-15 19:50:29,786 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-15 19:50:29,786 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [589215893] [2021-10-15 19:50:29,787 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Substitution failed: {(= (store |v_old(#valid)_BEFORE_CALL_12| v_~a9~0.base_93 (_ bv0 1)) v_prenex_1)=(= (select (store |v_old(#valid)_BEFORE_CALL_12| v_~a9~0.base_93 (_ bv0 1)) v_antiDerIndex_entry0_1) (select v_prenex_1 v_antiDerIndex_entry0_1))} [2021-10-15 19:50:29,787 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [457693865] [2021-10-15 19:50:29,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 19:50:29,787 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-15 19:50:29,788 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06d08a9d-b95e-49a8-94eb-430a65c2e02f/bin/uautomizer-hJ6jxDFKc3/cvc4 [2021-10-15 19:50:29,797 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06d08a9d-b95e-49a8-94eb-430a65c2e02f/bin/uautomizer-hJ6jxDFKc3/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-15 19:50:29,808 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06d08a9d-b95e-49a8-94eb-430a65c2e02f/bin/uautomizer-hJ6jxDFKc3/cvc4 --incremental --print-success --lang smt (9)] Waiting until timeout for monitored process [2021-10-15 19:50:30,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 19:50:30,213 INFO L263 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 18 conjunts are in the unsatisfiable core [2021-10-15 19:50:30,215 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-15 19:50:30,241 INFO L354 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2021-10-15 19:50:30,242 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 28 [2021-10-15 19:50:34,607 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 10 treesize of output 8 [2021-10-15 19:50:36,749 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-15 19:50:36,749 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-15 19:50:43,002 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_old(#valid)_BEFORE_CALL_17| (Array (_ BitVec 32) (_ BitVec 1)))) (or (= |v_old(#valid)_BEFORE_CALL_17| |c_#valid|) (exists ((v_~a9~0.base_93 (_ BitVec 32))) (and (not (= (store |c_old(#valid)| v_~a9~0.base_93 (_ bv0 1)) |v_old(#valid)_BEFORE_CALL_17|)) (= (_ bv0 1) (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (select |c_old(#valid)| v_~a9~0.base_93)))))))))))) is different from false [2021-10-15 19:50:43,137 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_old(#valid)_BEFORE_CALL_17| (Array (_ BitVec 32) (_ BitVec 1)))) (or (= |v_old(#valid)_BEFORE_CALL_17| (store |c_#valid| c_~a9~0.base (_ bv0 1))) (exists ((v_~a9~0.base_93 (_ BitVec 32))) (and (not (= (store |c_old(#valid)| v_~a9~0.base_93 (_ bv0 1)) |v_old(#valid)_BEFORE_CALL_17|)) (= (_ bv0 1) (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (select |c_old(#valid)| v_~a9~0.base_93)))))))))))) is different from false [2021-10-15 19:50:43,211 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Substitution failed: {(= (store |v_old(#valid)_BEFORE_CALL_18| v_~a9~0.base_93 (_ bv0 1)) v_prenex_3)=(= (select (store |v_old(#valid)_BEFORE_CALL_18| v_~a9~0.base_93 (_ bv0 1)) v_antiDerIndex_entry0_2) (select v_prenex_3 v_antiDerIndex_entry0_2))} [2021-10-15 19:50:43,212 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [985464530] [2021-10-15 19:50:43,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 19:50:43,212 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-15 19:50:43,213 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06d08a9d-b95e-49a8-94eb-430a65c2e02f/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:50:43,214 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06d08a9d-b95e-49a8-94eb-430a65c2e02f/bin/uautomizer-hJ6jxDFKc3/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-15 19:50:43,233 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06d08a9d-b95e-49a8-94eb-430a65c2e02f/bin/uautomizer-hJ6jxDFKc3/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-10-15 19:50:43,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 19:50:43,464 INFO L263 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 15 conjunts are in the unsatisfiable core [2021-10-15 19:50:43,466 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-15 19:50:43,588 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 9 treesize of output 7 [2021-10-15 19:50:43,667 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-15 19:50:43,668 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-15 19:50:48,054 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_old(#valid)_BEFORE_CALL_23| (Array (_ BitVec 32) (_ BitVec 1)))) (or (exists ((v_~a9~0.base_93 (_ BitVec 32))) (and (not (= (store |c_old(#valid)| v_~a9~0.base_93 (_ bv0 1)) |v_old(#valid)_BEFORE_CALL_23|)) (= (_ bv0 1) (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (select |c_old(#valid)| v_~a9~0.base_93)))))))))) (= |v_old(#valid)_BEFORE_CALL_23| |c_#valid|))) is different from false [2021-10-15 19:50:48,175 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_old(#valid)_BEFORE_CALL_23| (Array (_ BitVec 32) (_ BitVec 1)))) (or (exists ((v_~a9~0.base_93 (_ BitVec 32))) (and (not (= (store |c_old(#valid)| v_~a9~0.base_93 (_ bv0 1)) |v_old(#valid)_BEFORE_CALL_23|)) (= (_ bv0 1) (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (select |c_old(#valid)| v_~a9~0.base_93)))))))))) (= |v_old(#valid)_BEFORE_CALL_23| (store |c_#valid| c_~a9~0.base (_ bv0 1))))) is different from false [2021-10-15 19:50:48,248 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Substitution failed: {(= (store |v_old(#valid)_BEFORE_CALL_24| v_~a9~0.base_93 (_ bv0 1)) v_prenex_5)=(= (select (store |v_old(#valid)_BEFORE_CALL_24| v_~a9~0.base_93 (_ bv0 1)) v_antiDerIndex_entry0_3) (select v_prenex_5 v_antiDerIndex_entry0_3))} [2021-10-15 19:50:48,248 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 0 imperfect interpolant sequences. [2021-10-15 19:50:48,248 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [] total 0 [2021-10-15 19:50:48,249 ERROR L172 FreeRefinementEngine]: Strategy WOLF failed to provide any proof altough trace is infeasible [2021-10-15 19:50:48,249 INFO L626 BasicCegarLoop]: Counterexample might be feasible [2021-10-15 19:50:48,256 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr0ENSURES_VIOLATIONMEMORY_LEAK [2021-10-15 19:50:48,258 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_allocErr0REQUIRES_VIOLATION [2021-10-15 19:50:48,258 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_allocErr1REQUIRES_VIOLATION [2021-10-15 19:50:48,259 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kref_initErr0REQUIRES_VIOLATION [2021-10-15 19:50:48,259 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kref_initErr1REQUIRES_VIOLATION [2021-10-15 19:50:48,259 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr0REQUIRES_VIOLATION [2021-10-15 19:50:48,259 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr1REQUIRES_VIOLATION [2021-10-15 19:50:48,260 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr2REQUIRES_VIOLATION [2021-10-15 19:50:48,260 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr3REQUIRES_VIOLATION [2021-10-15 19:50:48,260 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION [2021-10-15 19:50:48,260 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION [2021-10-15 19:50:48,260 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION [2021-10-15 19:50:48,261 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION [2021-10-15 19:50:48,261 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr0REQUIRES_VIOLATION [2021-10-15 19:50:48,261 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr1REQUIRES_VIOLATION [2021-10-15 19:50:48,261 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr2REQUIRES_VIOLATION [2021-10-15 19:50:48,262 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr3REQUIRES_VIOLATION [2021-10-15 19:50:48,262 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr4REQUIRES_VIOLATION [2021-10-15 19:50:48,262 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr5REQUIRES_VIOLATION [2021-10-15 19:50:48,262 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr6REQUIRES_VIOLATION [2021-10-15 19:50:48,262 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr7REQUIRES_VIOLATION [2021-10-15 19:50:48,263 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_set_drvdataErr0REQUIRES_VIOLATION [2021-10-15 19:50:48,263 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_set_drvdataErr1REQUIRES_VIOLATION [2021-10-15 19:50:48,263 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr0REQUIRES_VIOLATION [2021-10-15 19:50:48,263 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr1REQUIRES_VIOLATION [2021-10-15 19:50:48,263 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr2REQUIRES_VIOLATION [2021-10-15 19:50:48,264 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr3REQUIRES_VIOLATION [2021-10-15 19:50:48,264 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr0REQUIRES_VIOLATION [2021-10-15 19:50:48,264 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr1REQUIRES_VIOLATION [2021-10-15 19:50:48,264 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr2REQUIRES_VIOLATION [2021-10-15 19:50:48,265 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr3REQUIRES_VIOLATION [2021-10-15 19:50:48,265 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_addErr0REQUIRES_VIOLATION [2021-10-15 19:50:48,265 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_addErr1REQUIRES_VIOLATION [2021-10-15 19:50:48,265 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr0REQUIRES_VIOLATION [2021-10-15 19:50:48,265 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr1REQUIRES_VIOLATION [2021-10-15 19:50:48,266 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr2REQUIRES_VIOLATION [2021-10-15 19:50:48,266 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr3REQUIRES_VIOLATION [2021-10-15 19:50:48,266 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr4REQUIRES_VIOLATION [2021-10-15 19:50:48,266 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr5REQUIRES_VIOLATION [2021-10-15 19:50:48,266 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_get_drvdataErr0REQUIRES_VIOLATION [2021-10-15 19:50:48,267 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_get_drvdataErr1REQUIRES_VIOLATION [2021-10-15 19:50:48,267 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr0REQUIRES_VIOLATION [2021-10-15 19:50:48,267 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr1REQUIRES_VIOLATION [2021-10-15 19:50:48,267 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE [2021-10-15 19:50:48,268 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE [2021-10-15 19:50:48,268 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE [2021-10-15 19:50:48,268 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE [2021-10-15 19:50:48,268 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE [2021-10-15 19:50:48,268 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE [2021-10-15 19:50:48,269 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr0REQUIRES_VIOLATION [2021-10-15 19:50:48,269 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr1REQUIRES_VIOLATION [2021-10-15 19:50:48,269 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr2REQUIRES_VIOLATION [2021-10-15 19:50:48,269 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr3REQUIRES_VIOLATION [2021-10-15 19:50:48,270 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr4REQUIRES_VIOLATION [2021-10-15 19:50:48,270 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr5REQUIRES_VIOLATION [2021-10-15 19:50:48,270 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr0REQUIRES_VIOLATION [2021-10-15 19:50:48,270 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr1REQUIRES_VIOLATION [2021-10-15 19:50:48,270 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE [2021-10-15 19:50:48,271 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE [2021-10-15 19:50:48,271 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE [2021-10-15 19:50:48,271 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE [2021-10-15 19:50:48,271 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE [2021-10-15 19:50:48,272 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE [2021-10-15 19:50:48,272 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_createErr0REQUIRES_VIOLATION [2021-10-15 19:50:48,272 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_createErr1REQUIRES_VIOLATION [2021-10-15 19:50:48,272 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr0REQUIRES_VIOLATION [2021-10-15 19:50:48,272 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr1REQUIRES_VIOLATION [2021-10-15 19:50:48,273 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr2REQUIRES_VIOLATION [2021-10-15 19:50:48,273 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr3REQUIRES_VIOLATION [2021-10-15 19:50:48,273 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_add_tailErr0REQUIRES_VIOLATION [2021-10-15 19:50:48,273 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_add_tailErr1REQUIRES_VIOLATION [2021-10-15 19:50:48,273 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location disconnect_9Err0ASSERT_VIOLATIONMEMORY_FREE [2021-10-15 19:50:48,274 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location disconnect_9Err1ASSERT_VIOLATIONMEMORY_FREE [2021-10-15 19:50:48,274 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location disconnect_9Err2ASSERT_VIOLATIONMEMORY_FREE [2021-10-15 19:50:48,312 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06d08a9d-b95e-49a8-94eb-430a65c2e02f/bin/uautomizer-hJ6jxDFKc3/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2021-10-15 19:50:48,507 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06d08a9d-b95e-49a8-94eb-430a65c2e02f/bin/uautomizer-hJ6jxDFKc3/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-10-15 19:50:48,695 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06d08a9d-b95e-49a8-94eb-430a65c2e02f/bin/uautomizer-hJ6jxDFKc3/cvc4 --incremental --print-success --lang smt (9)] Forceful destruction successful, exit code 0 [2021-10-15 19:50:48,892 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06d08a9d-b95e-49a8-94eb-430a65c2e02f/bin/uautomizer-hJ6jxDFKc3/z3 -smt2 -in SMTLIB2_COMPLIANT=true,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06d08a9d-b95e-49a8-94eb-430a65c2e02f/bin/uautomizer-hJ6jxDFKc3/mathsat -unsat_core_generation=3,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06d08a9d-b95e-49a8-94eb-430a65c2e02f/bin/uautomizer-hJ6jxDFKc3/cvc4 --incremental --print-success --lang smt [2021-10-15 19:50:48,898 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-15 19:50:48,902 WARN L418 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2021-10-15 19:50:48,914 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.10 07:50:48 BoogieIcfgContainer [2021-10-15 19:50:48,915 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-15 19:50:48,917 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-15 19:50:48,917 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-15 19:50:48,918 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-15 19:50:48,918 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 07:50:17" (3/4) ... [2021-10-15 19:50:48,923 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-15 19:50:48,923 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-15 19:50:48,924 INFO L168 Benchmark]: Toolchain (without parser) took 33549.29 ms. Allocated memory was 60.8 MB in the beginning and 102.8 MB in the end (delta: 41.9 MB). Free memory was 38.0 MB in the beginning and 36.5 MB in the end (delta: 1.4 MB). Peak memory consumption was 42.7 MB. Max. memory is 16.1 GB. [2021-10-15 19:50:48,924 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 60.8 MB. Free memory is still 40.1 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-15 19:50:48,925 INFO L168 Benchmark]: CACSL2BoogieTranslator took 772.50 ms. Allocated memory is still 60.8 MB. Free memory was 37.7 MB in the beginning and 25.2 MB in the end (delta: 12.5 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-15 19:50:48,925 INFO L168 Benchmark]: Boogie Preprocessor took 118.20 ms. Allocated memory is still 60.8 MB. Free memory was 25.2 MB in the beginning and 40.2 MB in the end (delta: -15.0 MB). Peak memory consumption was 5.7 MB. Max. memory is 16.1 GB. [2021-10-15 19:50:48,926 INFO L168 Benchmark]: RCFGBuilder took 1392.70 ms. Allocated memory was 60.8 MB in the beginning and 79.7 MB in the end (delta: 18.9 MB). Free memory was 39.9 MB in the beginning and 53.3 MB in the end (delta: -13.3 MB). Peak memory consumption was 29.8 MB. Max. memory is 16.1 GB. [2021-10-15 19:50:48,926 INFO L168 Benchmark]: TraceAbstraction took 31253.23 ms. Allocated memory was 79.7 MB in the beginning and 102.8 MB in the end (delta: 23.1 MB). Free memory was 52.9 MB in the beginning and 37.4 MB in the end (delta: 15.5 MB). Peak memory consumption was 39.4 MB. Max. memory is 16.1 GB. [2021-10-15 19:50:48,927 INFO L168 Benchmark]: Witness Printer took 5.57 ms. Allocated memory is still 102.8 MB. Free memory was 37.4 MB in the beginning and 36.5 MB in the end (delta: 907.3 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-15 19:50:48,929 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 60.8 MB. Free memory is still 40.1 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 772.50 ms. Allocated memory is still 60.8 MB. Free memory was 37.7 MB in the beginning and 25.2 MB in the end (delta: 12.5 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 118.20 ms. Allocated memory is still 60.8 MB. Free memory was 25.2 MB in the beginning and 40.2 MB in the end (delta: -15.0 MB). Peak memory consumption was 5.7 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1392.70 ms. Allocated memory was 60.8 MB in the beginning and 79.7 MB in the end (delta: 18.9 MB). Free memory was 39.9 MB in the beginning and 53.3 MB in the end (delta: -13.3 MB). Peak memory consumption was 29.8 MB. Max. memory is 16.1 GB. * TraceAbstraction took 31253.23 ms. Allocated memory was 79.7 MB in the beginning and 102.8 MB in the end (delta: 23.1 MB). Free memory was 52.9 MB in the beginning and 37.4 MB in the end (delta: 15.5 MB). Peak memory consumption was 39.4 MB. Max. memory is 16.1 GB. * Witness Printer took 5.57 ms. Allocated memory is still 102.8 MB. Free memory was 37.4 MB in the beginning and 36.5 MB in the end (delta: 907.3 kB). 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: 775]: 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 775. Possible FailurePath: [L569] struct ldv_list_head ldv_global_msg_list = { &(ldv_global_msg_list), &(ldv_global_msg_list) }; [L757] int *a9; [L776] CALL entry_point() [L769] CALL, EXPR probe_9() [L759] CALL, EXPR ldv_malloc(sizeof(int)) [L526] COND TRUE __VERIFIER_nondet_int() [L527] return malloc(size); [L759] RET, EXPR ldv_malloc(sizeof(int)) [L759] a9 = (int *)ldv_malloc(sizeof(int)) [L760] COND TRUE \read(*a9) [L761] return 0; [L769] RET, EXPR probe_9() [L769] int ret = probe_9(); [L770] COND TRUE ret==0 [L771] CALL disconnect_9() [L766] free(a9) [L766] free(a9) [L766] free(a9) [L771] RET disconnect_9() [L773] a9 = 0 [L776] RET entry_point() - UnprovableResult [Line: 578]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 578]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 682]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 682]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 658]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 658]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 660]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 660]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 540]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 540]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 541]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 541]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 547]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 547]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 548]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 548]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 549]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 549]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 550]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 550]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 623]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 623]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 554]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 554]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 555]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 555]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 666]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 666]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 668]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 668]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 559]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 559]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 607]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 607]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 607]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 607]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 607]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 607]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 619]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 619]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 593]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 593]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 593]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 593]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 593]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 594]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 594]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 594]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 587]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 587]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 587]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 587]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 588]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 588]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 699]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 699]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 700]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 700]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 700]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 702]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 702]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 702]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 744]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 744]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 567]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 567]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 567]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 567]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 563]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 563]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 766]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 766]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 766]: 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, 345 locations, 74 error locations. Started 1 CEGAR loops. OverallTime: 31187.6ms, OverallIterations: 7, TraceHistogramMax: 1, EmptinessCheckTime: 20.9ms, AutomataDifference: 551.5ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 11.2ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 194 SDtfs, 100 SDslu, 367 SDs, 0 SdLazy, 175 SolverSat, 22 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 248.0ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 260 GetRequests, 230 SyntacticMatches, 2 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 293.5ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=105occurred in iteration=0, InterpolantAutomatonStates: 31, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 66.1ms AutomataMinimizationTime, 6 MinimizatonAttempts, 31 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 62.1ms SsaConstructionTime, 174.9ms SatisfiabilityAnalysisTime, 1847.2ms InterpolantComputationTime, 129 NumberOfCodeBlocks, 129 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 246 ConstructedInterpolants, 0 QuantifiedInterpolants, 713 SizeOfPredicates, 1 NumberOfNonLiveVariables, 566 ConjunctsInSsa, 35 ConjunctsInUnsatCore, 12 InterpolantComputations, 12 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-10-15 19:50:48,959 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06d08a9d-b95e-49a8-94eb-430a65c2e02f/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...