./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/ldv-memsafety/memleaks_test21-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_694b8a32-4e44-436e-9caa-4d6b8fcff8c3/bin/uautomizer-GMMbpWq8iD/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_694b8a32-4e44-436e-9caa-4d6b8fcff8c3/bin/uautomizer-GMMbpWq8iD/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_694b8a32-4e44-436e-9caa-4d6b8fcff8c3/bin/uautomizer-GMMbpWq8iD/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_694b8a32-4e44-436e-9caa-4d6b8fcff8c3/bin/uautomizer-GMMbpWq8iD/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test21-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_694b8a32-4e44-436e-9caa-4d6b8fcff8c3/bin/uautomizer-GMMbpWq8iD/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_694b8a32-4e44-436e-9caa-4d6b8fcff8c3/bin/uautomizer-GMMbpWq8iD --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 8cad73f64954eeb86e2707e579f8aca932182fe823da421e8ece02d4d63f0cc3 ................................................................................................................................... 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_694b8a32-4e44-436e-9caa-4d6b8fcff8c3/bin/uautomizer-GMMbpWq8iD/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_694b8a32-4e44-436e-9caa-4d6b8fcff8c3/bin/uautomizer-GMMbpWq8iD/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_694b8a32-4e44-436e-9caa-4d6b8fcff8c3/bin/uautomizer-GMMbpWq8iD/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_694b8a32-4e44-436e-9caa-4d6b8fcff8c3/bin/uautomizer-GMMbpWq8iD/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test21-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_694b8a32-4e44-436e-9caa-4d6b8fcff8c3/bin/uautomizer-GMMbpWq8iD/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_694b8a32-4e44-436e-9caa-4d6b8fcff8c3/bin/uautomizer-GMMbpWq8iD --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 8cad73f64954eeb86e2707e579f8aca932182fe823da421e8ece02d4d63f0cc3 ..................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-28 23:20:53,079 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 23:20:53,083 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 23:20:53,155 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 23:20:53,156 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 23:20:53,161 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 23:20:53,164 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 23:20:53,169 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 23:20:53,172 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 23:20:53,179 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 23:20:53,181 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 23:20:53,184 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 23:20:53,185 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 23:20:53,188 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 23:20:53,191 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 23:20:53,197 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 23:20:53,199 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 23:20:53,201 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 23:20:53,208 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 23:20:53,218 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 23:20:53,220 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 23:20:53,222 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 23:20:53,226 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 23:20:53,228 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 23:20:53,239 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 23:20:53,239 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 23:20:53,240 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 23:20:53,242 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 23:20:53,243 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 23:20:53,245 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 23:20:53,246 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 23:20:53,247 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 23:20:53,249 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 23:20:53,250 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 23:20:53,252 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 23:20:53,253 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 23:20:53,253 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 23:20:53,254 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 23:20:53,254 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 23:20:53,255 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 23:20:53,256 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 23:20:53,257 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_694b8a32-4e44-436e-9caa-4d6b8fcff8c3/bin/uautomizer-GMMbpWq8iD/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2021-10-28 23:20:53,309 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 23:20:53,310 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 23:20:53,311 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 23:20:53,311 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 23:20:53,313 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 23:20:53,313 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 23:20:53,314 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 23:20:53,314 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 23:20:53,314 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 23:20:53,315 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-28 23:20:53,316 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 23:20:53,316 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 23:20:53,317 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 23:20:53,317 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-10-28 23:20:53,317 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-10-28 23:20:53,317 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-10-28 23:20:53,318 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-28 23:20:53,318 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-28 23:20:53,318 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 23:20:53,319 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 23:20:53,319 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 23:20:53,319 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 23:20:53,319 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-28 23:20:53,320 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 23:20:53,320 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 23:20:53,320 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-28 23:20:53,321 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 23:20:53,321 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-28 23:20:53,321 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 23:20:53,323 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_694b8a32-4e44-436e-9caa-4d6b8fcff8c3/bin/uautomizer-GMMbpWq8iD/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_694b8a32-4e44-436e-9caa-4d6b8fcff8c3/bin/uautomizer-GMMbpWq8iD Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8cad73f64954eeb86e2707e579f8aca932182fe823da421e8ece02d4d63f0cc3 [2021-10-28 23:20:53,724 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 23:20:53,753 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 23:20:53,756 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 23:20:53,758 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 23:20:53,760 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 23:20:53,761 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_694b8a32-4e44-436e-9caa-4d6b8fcff8c3/bin/uautomizer-GMMbpWq8iD/../../sv-benchmarks/c/ldv-memsafety/memleaks_test21-2.i [2021-10-28 23:20:53,874 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_694b8a32-4e44-436e-9caa-4d6b8fcff8c3/bin/uautomizer-GMMbpWq8iD/data/b1282aa2b/b2a2506051cf4193bf71745b11236a99/FLAG4d56388b3 [2021-10-28 23:20:54,518 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 23:20:54,525 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_694b8a32-4e44-436e-9caa-4d6b8fcff8c3/sv-benchmarks/c/ldv-memsafety/memleaks_test21-2.i [2021-10-28 23:20:54,543 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_694b8a32-4e44-436e-9caa-4d6b8fcff8c3/bin/uautomizer-GMMbpWq8iD/data/b1282aa2b/b2a2506051cf4193bf71745b11236a99/FLAG4d56388b3 [2021-10-28 23:20:54,748 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_694b8a32-4e44-436e-9caa-4d6b8fcff8c3/bin/uautomizer-GMMbpWq8iD/data/b1282aa2b/b2a2506051cf4193bf71745b11236a99 [2021-10-28 23:20:54,751 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 23:20:54,753 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-10-28 23:20:54,759 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 23:20:54,760 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 23:20:54,764 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 23:20:54,765 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:20:54" (1/1) ... [2021-10-28 23:20:54,767 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3f49e069 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:20:54, skipping insertion in model container [2021-10-28 23:20:54,770 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:20:54" (1/1) ... [2021-10-28 23:20:54,779 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 23:20:54,882 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 23:20:55,417 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:20:55,449 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2021-10-28 23:20:55,450 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@32550269 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:20:55, skipping insertion in model container [2021-10-28 23:20:55,450 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 23:20:55,452 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.preprocessor [2021-10-28 23:20:55,454 INFO L168 Benchmark]: Toolchain (without parser) took 699.96 ms. Allocated memory was 79.7 MB in the beginning and 102.8 MB in the end (delta: 23.1 MB). Free memory was 42.3 MB in the beginning and 74.1 MB in the end (delta: -31.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-28 23:20:55,455 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 79.7 MB. Free memory was 60.0 MB in the beginning and 59.9 MB in the end (delta: 70.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:20:55,456 INFO L168 Benchmark]: CACSL2BoogieTranslator took 692.12 ms. Allocated memory was 79.7 MB in the beginning and 102.8 MB in the end (delta: 23.1 MB). Free memory was 42.1 MB in the beginning and 74.1 MB in the end (delta: -32.0 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-28 23:20:55,459 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 79.7 MB. Free memory was 60.0 MB in the beginning and 59.9 MB in the end (delta: 70.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 692.12 ms. Allocated memory was 79.7 MB in the beginning and 102.8 MB in the end (delta: 23.1 MB). Free memory was 42.1 MB in the beginning and 74.1 MB in the end (delta: -32.0 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 576]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.1-dev-b2eff8b [2021-10-28 23:20:58,187 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 23:20:58,192 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 23:20:58,255 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 23:20:58,256 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 23:20:58,261 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 23:20:58,263 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 23:20:58,274 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 23:20:58,278 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 23:20:58,285 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 23:20:58,287 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 23:20:58,289 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 23:20:58,290 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 23:20:58,293 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 23:20:58,295 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 23:20:58,301 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 23:20:58,311 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 23:20:58,312 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 23:20:58,315 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 23:20:58,325 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 23:20:58,328 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 23:20:58,330 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 23:20:58,333 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 23:20:58,336 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 23:20:58,348 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 23:20:58,348 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 23:20:58,349 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 23:20:58,351 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 23:20:58,352 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 23:20:58,353 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 23:20:58,354 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 23:20:58,355 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 23:20:58,357 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 23:20:58,358 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 23:20:58,360 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 23:20:58,360 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 23:20:58,361 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 23:20:58,362 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 23:20:58,362 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 23:20:58,364 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 23:20:58,365 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 23:20:58,371 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_694b8a32-4e44-436e-9caa-4d6b8fcff8c3/bin/uautomizer-GMMbpWq8iD/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2021-10-28 23:20:58,422 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 23:20:58,423 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 23:20:58,423 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 23:20:58,424 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 23:20:58,426 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 23:20:58,427 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 23:20:58,428 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 23:20:58,429 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 23:20:58,429 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 23:20:58,429 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-28 23:20:58,431 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 23:20:58,431 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 23:20:58,431 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 23:20:58,432 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-10-28 23:20:58,432 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-10-28 23:20:58,432 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-10-28 23:20:58,432 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-28 23:20:58,433 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-28 23:20:58,433 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-28 23:20:58,435 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-28 23:20:58,435 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 23:20:58,441 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 23:20:58,441 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 23:20:58,443 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 23:20:58,443 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-28 23:20:58,443 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 23:20:58,444 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 23:20:58,444 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-28 23:20:58,444 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-10-28 23:20:58,445 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-28 23:20:58,445 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 23:20:58,445 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-28 23:20:58,446 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_694b8a32-4e44-436e-9caa-4d6b8fcff8c3/bin/uautomizer-GMMbpWq8iD/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_694b8a32-4e44-436e-9caa-4d6b8fcff8c3/bin/uautomizer-GMMbpWq8iD Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8cad73f64954eeb86e2707e579f8aca932182fe823da421e8ece02d4d63f0cc3 [2021-10-28 23:20:58,914 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 23:20:58,963 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 23:20:58,966 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 23:20:58,968 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 23:20:58,969 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 23:20:58,972 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_694b8a32-4e44-436e-9caa-4d6b8fcff8c3/bin/uautomizer-GMMbpWq8iD/../../sv-benchmarks/c/ldv-memsafety/memleaks_test21-2.i [2021-10-28 23:20:59,060 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_694b8a32-4e44-436e-9caa-4d6b8fcff8c3/bin/uautomizer-GMMbpWq8iD/data/ceed59cf3/eed42ef20dbc4dfab57b4eb6c4c118c4/FLAG55c1041af [2021-10-28 23:20:59,837 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 23:20:59,838 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_694b8a32-4e44-436e-9caa-4d6b8fcff8c3/sv-benchmarks/c/ldv-memsafety/memleaks_test21-2.i [2021-10-28 23:20:59,862 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_694b8a32-4e44-436e-9caa-4d6b8fcff8c3/bin/uautomizer-GMMbpWq8iD/data/ceed59cf3/eed42ef20dbc4dfab57b4eb6c4c118c4/FLAG55c1041af [2021-10-28 23:20:59,989 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_694b8a32-4e44-436e-9caa-4d6b8fcff8c3/bin/uautomizer-GMMbpWq8iD/data/ceed59cf3/eed42ef20dbc4dfab57b4eb6c4c118c4 [2021-10-28 23:21:00,006 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 23:21:00,008 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-10-28 23:21:00,010 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 23:21:00,010 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 23:21:00,015 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 23:21:00,016 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:20:59" (1/1) ... [2021-10-28 23:21:00,018 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2f365f83 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:21:00, skipping insertion in model container [2021-10-28 23:21:00,018 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:20:59" (1/1) ... [2021-10-28 23:21:00,027 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 23:21:00,111 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 23:21:00,576 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:21:00,608 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-10-28 23:21:00,625 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 23:21:00,709 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:21:00,721 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 23:21:00,832 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:21:00,893 INFO L208 MainTranslator]: Completed translation [2021-10-28 23:21:00,893 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:21:00 WrapperNode [2021-10-28 23:21:00,894 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 23:21:00,895 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 23:21:00,895 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 23:21:00,896 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 23:21:00,911 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:21:00" (1/1) ... [2021-10-28 23:21:00,911 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:21:00" (1/1) ... [2021-10-28 23:21:00,977 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:21:00" (1/1) ... [2021-10-28 23:21:00,977 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:21:00" (1/1) ... [2021-10-28 23:21:01,048 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:21:00" (1/1) ... [2021-10-28 23:21:01,055 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:21:00" (1/1) ... [2021-10-28 23:21:01,063 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:21:00" (1/1) ... [2021-10-28 23:21:01,075 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 23:21:01,076 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 23:21:01,076 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 23:21:01,076 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 23:21:01,078 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:21:00" (1/1) ... [2021-10-28 23:21:01,102 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 23:21:01,120 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_694b8a32-4e44-436e-9caa-4d6b8fcff8c3/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:21:01,144 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_694b8a32-4e44-436e-9caa-4d6b8fcff8c3/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-28 23:21:01,182 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_694b8a32-4e44-436e-9caa-4d6b8fcff8c3/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-28 23:21:01,211 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-10-28 23:21:01,212 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 23:21:01,212 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-10-28 23:21:01,213 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.setCurrentRoundingMode [2021-10-28 23:21:01,213 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2021-10-28 23:21:01,216 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2021-10-28 23:21:01,217 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2021-10-28 23:21:01,217 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2021-10-28 23:21:01,217 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2021-10-28 23:21:01,217 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_nonpositive [2021-10-28 23:21:01,217 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_positive [2021-10-28 23:21:01,218 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-10-28 23:21:01,218 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-10-28 23:21:01,218 INFO L138 BoogieDeclarations]: Found implementation of procedure LDV_INIT_LIST_HEAD [2021-10-28 23:21:01,218 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2021-10-28 23:21:01,219 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_del [2021-10-28 23:21:01,219 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add [2021-10-28 23:21:01,219 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add_tail [2021-10-28 23:21:01,219 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_del [2021-10-28 23:21:01,219 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_alloc [2021-10-28 23:21:01,220 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_fill [2021-10-28 23:21:01,220 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_free [2021-10-28 23:21:01,220 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_msg [2021-10-28 23:21:01,220 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_destroy_msgs [2021-10-28 23:21:01,220 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2021-10-28 23:21:01,221 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-10-28 23:21:01,221 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_add_return [2021-10-28 23:21:01,221 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_sub_return [2021-10-28 23:21:01,221 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_sub [2021-10-28 23:21:01,222 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_init [2021-10-28 23:21:01,222 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_get [2021-10-28 23:21:01,224 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_put [2021-10-28 23:21:01,224 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_del [2021-10-28 23:21:01,224 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_cleanup [2021-10-28 23:21:01,224 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_release [2021-10-28 23:21:01,225 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_put [2021-10-28 23:21:01,225 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_get [2021-10-28 23:21:01,225 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init_internal [2021-10-28 23:21:01,225 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init [2021-10-28 23:21:01,226 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_create [2021-10-28 23:21:01,226 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2021-10-28 23:21:01,226 INFO L138 BoogieDeclarations]: Found implementation of procedure g [2021-10-28 23:21:01,227 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_21 [2021-10-28 23:21:01,227 INFO L138 BoogieDeclarations]: Found implementation of procedure free_21 [2021-10-28 23:21:01,228 INFO L138 BoogieDeclarations]: Found implementation of procedure entry_point [2021-10-28 23:21:01,228 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-10-28 23:21:01,228 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-10-28 23:21:01,229 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-10-28 23:21:01,229 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-10-28 23:21:01,230 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2021-10-28 23:21:01,230 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2021-10-28 23:21:01,230 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2021-10-28 23:21:01,231 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2021-10-28 23:21:01,231 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2021-10-28 23:21:01,231 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2021-10-28 23:21:01,231 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2021-10-28 23:21:01,231 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2021-10-28 23:21:01,232 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2021-10-28 23:21:01,232 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2021-10-28 23:21:01,232 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2021-10-28 23:21:01,233 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2021-10-28 23:21:01,233 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2021-10-28 23:21:01,235 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2021-10-28 23:21:01,235 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2021-10-28 23:21:01,236 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2021-10-28 23:21:01,236 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2021-10-28 23:21:01,237 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2021-10-28 23:21:01,237 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2021-10-28 23:21:01,237 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2021-10-28 23:21:01,237 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2021-10-28 23:21:01,238 INFO L130 BoogieDeclarations]: Found specification of procedure select [2021-10-28 23:21:01,238 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2021-10-28 23:21:01,238 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2021-10-28 23:21:01,238 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2021-10-28 23:21:01,238 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2021-10-28 23:21:01,239 INFO L130 BoogieDeclarations]: Found specification of procedure random [2021-10-28 23:21:01,239 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2021-10-28 23:21:01,239 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2021-10-28 23:21:01,239 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2021-10-28 23:21:01,240 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2021-10-28 23:21:01,241 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2021-10-28 23:21:01,241 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2021-10-28 23:21:01,241 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2021-10-28 23:21:01,241 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2021-10-28 23:21:01,242 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2021-10-28 23:21:01,242 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2021-10-28 23:21:01,242 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2021-10-28 23:21:01,242 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2021-10-28 23:21:01,242 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2021-10-28 23:21:01,243 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2021-10-28 23:21:01,243 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2021-10-28 23:21:01,243 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2021-10-28 23:21:01,243 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2021-10-28 23:21:01,243 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2021-10-28 23:21:01,244 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2021-10-28 23:21:01,244 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2021-10-28 23:21:01,244 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2021-10-28 23:21:01,244 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2021-10-28 23:21:01,244 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2021-10-28 23:21:01,245 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2021-10-28 23:21:01,245 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2021-10-28 23:21:01,245 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2021-10-28 23:21:01,246 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2021-10-28 23:21:01,246 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2021-10-28 23:21:01,246 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2021-10-28 23:21:01,246 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2021-10-28 23:21:01,246 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2021-10-28 23:21:01,247 INFO L130 BoogieDeclarations]: Found specification of procedure free [2021-10-28 23:21:01,247 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2021-10-28 23:21:01,247 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2021-10-28 23:21:01,247 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2021-10-28 23:21:01,247 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2021-10-28 23:21:01,248 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-10-28 23:21:01,248 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2021-10-28 23:21:01,248 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2021-10-28 23:21:01,248 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2021-10-28 23:21:01,248 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2021-10-28 23:21:01,249 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2021-10-28 23:21:01,249 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2021-10-28 23:21:01,249 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2021-10-28 23:21:01,250 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2021-10-28 23:21:01,250 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2021-10-28 23:21:01,251 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2021-10-28 23:21:01,252 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2021-10-28 23:21:01,255 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2021-10-28 23:21:01,255 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2021-10-28 23:21:01,256 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2021-10-28 23:21:01,256 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2021-10-28 23:21:01,257 INFO L130 BoogieDeclarations]: Found specification of procedure system [2021-10-28 23:21:01,258 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2021-10-28 23:21:01,258 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2021-10-28 23:21:01,258 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2021-10-28 23:21:01,259 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2021-10-28 23:21:01,259 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2021-10-28 23:21:01,259 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2021-10-28 23:21:01,259 INFO L130 BoogieDeclarations]: Found specification of procedure div [2021-10-28 23:21:01,259 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2021-10-28 23:21:01,260 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2021-10-28 23:21:01,260 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2021-10-28 23:21:01,260 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2021-10-28 23:21:01,260 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2021-10-28 23:21:01,260 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2021-10-28 23:21:01,260 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2021-10-28 23:21:01,260 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2021-10-28 23:21:01,261 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2021-10-28 23:21:01,261 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2021-10-28 23:21:01,261 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2021-10-28 23:21:01,261 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2021-10-28 23:21:01,261 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2021-10-28 23:21:01,261 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2021-10-28 23:21:01,261 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2021-10-28 23:21:01,261 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2021-10-28 23:21:01,262 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2021-10-28 23:21:01,262 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2021-10-28 23:21:01,262 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2021-10-28 23:21:01,262 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2021-10-28 23:21:01,262 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-10-28 23:21:01,263 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-10-28 23:21:01,263 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_nonpositive [2021-10-28 23:21:01,263 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_positive [2021-10-28 23:21:01,263 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2021-10-28 23:21:01,263 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2021-10-28 23:21:01,263 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-10-28 23:21:01,264 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-28 23:21:01,264 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-10-28 23:21:01,264 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-10-28 23:21:01,264 INFO L130 BoogieDeclarations]: Found specification of procedure LDV_INIT_LIST_HEAD [2021-10-28 23:21:01,264 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-10-28 23:21:01,265 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2021-10-28 23:21:01,265 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_del [2021-10-28 23:21:01,265 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add [2021-10-28 23:21:01,265 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-10-28 23:21:01,265 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add_tail [2021-10-28 23:21:01,266 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_del [2021-10-28 23:21:01,266 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_alloc [2021-10-28 23:21:01,266 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_fill [2021-10-28 23:21:01,266 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-10-28 23:21:01,266 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_free [2021-10-28 23:21:01,267 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-28 23:21:01,267 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_msg [2021-10-28 23:21:01,267 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_destroy_msgs [2021-10-28 23:21:01,267 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2021-10-28 23:21:01,267 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-10-28 23:21:01,267 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_add_return [2021-10-28 23:21:01,268 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-10-28 23:21:01,268 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-10-28 23:21:01,268 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_sub_return [2021-10-28 23:21:01,268 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_sub [2021-10-28 23:21:01,268 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-10-28 23:21:01,269 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_init [2021-10-28 23:21:01,269 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_get [2021-10-28 23:21:01,269 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_put [2021-10-28 23:21:01,269 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_del [2021-10-28 23:21:01,269 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_cleanup [2021-10-28 23:21:01,270 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_release [2021-10-28 23:21:01,270 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_put [2021-10-28 23:21:01,270 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_get [2021-10-28 23:21:01,270 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init_internal [2021-10-28 23:21:01,270 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init [2021-10-28 23:21:01,270 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_create [2021-10-28 23:21:01,271 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-10-28 23:21:01,271 INFO L130 BoogieDeclarations]: Found specification of procedure f [2021-10-28 23:21:01,271 INFO L130 BoogieDeclarations]: Found specification of procedure g [2021-10-28 23:21:01,271 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_21 [2021-10-28 23:21:01,271 INFO L130 BoogieDeclarations]: Found specification of procedure free_21 [2021-10-28 23:21:01,272 INFO L130 BoogieDeclarations]: Found specification of procedure entry_point [2021-10-28 23:21:01,272 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-10-28 23:21:01,272 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-10-28 23:21:01,272 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 23:21:01,272 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-10-28 23:21:01,272 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 23:21:01,273 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.setCurrentRoundingMode [2021-10-28 23:21:01,273 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-10-28 23:21:01,273 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-10-28 23:21:01,273 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-10-28 23:21:01,273 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2021-10-28 23:21:02,003 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-28 23:21:02,446 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-28 23:21:02,845 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 23:21:02,845 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-10-28 23:21:02,852 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:21:02 BoogieIcfgContainer [2021-10-28 23:21:02,852 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 23:21:02,855 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-28 23:21:02,855 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-28 23:21:02,858 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-28 23:21:02,859 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 11:20:59" (1/3) ... [2021-10-28 23:21:02,860 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5470e9e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 11:21:02, skipping insertion in model container [2021-10-28 23:21:02,860 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:21:00" (2/3) ... [2021-10-28 23:21:02,862 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5470e9e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 11:21:02, skipping insertion in model container [2021-10-28 23:21:02,862 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:21:02" (3/3) ... [2021-10-28 23:21:02,864 INFO L111 eAbstractionObserver]: Analyzing ICFG memleaks_test21-2.i [2021-10-28 23:21:02,870 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-28 23:21:02,871 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 74 error locations. [2021-10-28 23:21:02,940 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-28 23:21:02,950 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-28 23:21:02,951 INFO L340 AbstractCegarLoop]: Starting to check reachability of 74 error locations. [2021-10-28 23:21:02,972 INFO L276 IsEmpty]: Start isEmpty. Operand has 105 states, 58 states have (on average 1.5) internal successors, (87), 79 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) [2021-10-28 23:21:02,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-10-28 23:21:02,983 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:21:02,984 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:21:02,984 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting free_21Err0ASSERT_VIOLATIONMEMORY_FREE === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 70 more)] === [2021-10-28 23:21:02,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:21:02,993 INFO L85 PathProgramCache]: Analyzing trace with hash -1560719066, now seen corresponding path program 1 times [2021-10-28 23:21:03,007 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 23:21:03,007 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [612492889] [2021-10-28 23:21:03,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:21:03,008 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 23:21:03,008 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_694b8a32-4e44-436e-9caa-4d6b8fcff8c3/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 23:21:03,011 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_694b8a32-4e44-436e-9caa-4d6b8fcff8c3/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 23:21:03,021 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_694b8a32-4e44-436e-9caa-4d6b8fcff8c3/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-28 23:21:03,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:21:03,282 INFO L263 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 11 conjunts are in the unsatisfiable core [2021-10-28 23:21:03,288 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:21:03,594 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:21:03,595 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 23:21:03,901 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:21:03,902 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 23:21:03,902 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [612492889] [2021-10-28 23:21:03,903 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [612492889] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 23:21:03,904 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:21:03,904 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10, 10] imperfect sequences [] total 10 [2021-10-28 23:21:03,906 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [288277306] [2021-10-28 23:21:03,912 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-10-28 23:21:03,912 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 23:21:03,928 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-10-28 23:21:03,929 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2021-10-28 23:21:03,932 INFO L87 Difference]: Start difference. First operand has 105 states, 58 states have (on average 1.5) internal successors, (87), 79 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 11 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 8 states have internal predecessors, (12), 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) [2021-10-28 23:21:04,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:21:04,136 INFO L93 Difference]: Finished difference Result 52 states and 54 transitions. [2021-10-28 23:21:04,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-28 23:21:04,141 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 8 states have internal predecessors, (12), 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 21 [2021-10-28 23:21:04,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:21:04,153 INFO L225 Difference]: With dead ends: 52 [2021-10-28 23:21:04,154 INFO L226 Difference]: Without dead ends: 49 [2021-10-28 23:21:04,158 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2021-10-28 23:21:04,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2021-10-28 23:21:04,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 43. [2021-10-28 23:21:04,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 25 states have (on average 1.32) internal successors, (33), 29 states have internal predecessors, (33), 7 states have call successors, (7), 7 states have call predecessors, (7), 7 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) [2021-10-28 23:21:04,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 47 transitions. [2021-10-28 23:21:04,211 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 47 transitions. Word has length 21 [2021-10-28 23:21:04,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:21:04,212 INFO L470 AbstractCegarLoop]: Abstraction has 43 states and 47 transitions. [2021-10-28 23:21:04,212 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 8 states have internal predecessors, (12), 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) [2021-10-28 23:21:04,213 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 47 transitions. [2021-10-28 23:21:04,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-10-28 23:21:04,214 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:21:04,214 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:21:04,229 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_694b8a32-4e44-436e-9caa-4d6b8fcff8c3/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-28 23:21:04,428 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_694b8a32-4e44-436e-9caa-4d6b8fcff8c3/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-28 23:21:04,428 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting free_21Err0ASSERT_VIOLATIONMEMORY_FREE === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 70 more)] === [2021-10-28 23:21:04,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:21:04,429 INFO L85 PathProgramCache]: Analyzing trace with hash 182091269, now seen corresponding path program 1 times [2021-10-28 23:21:04,430 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 23:21:04,430 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [910366469] [2021-10-28 23:21:04,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:21:04,430 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 23:21:04,431 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_694b8a32-4e44-436e-9caa-4d6b8fcff8c3/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 23:21:04,432 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_694b8a32-4e44-436e-9caa-4d6b8fcff8c3/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 23:21:04,447 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_694b8a32-4e44-436e-9caa-4d6b8fcff8c3/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-28 23:21:04,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:21:04,630 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 23:21:04,632 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:21:04,741 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:21:04,742 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 23:21:04,873 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:21:04,874 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 23:21:04,874 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [910366469] [2021-10-28 23:21:04,875 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [910366469] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 23:21:04,875 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:21:04,875 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-10-28 23:21:04,875 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [405649650] [2021-10-28 23:21:04,877 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-28 23:21:04,877 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 23:21:04,878 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-28 23:21:04,879 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-28 23:21:04,879 INFO L87 Difference]: Start difference. First operand 43 states and 47 transitions. Second operand has 5 states, 5 states have (on average 2.4) internal successors, (12), 4 states have internal predecessors, (12), 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) [2021-10-28 23:21:04,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:21:04,900 INFO L93 Difference]: Finished difference Result 49 states and 53 transitions. [2021-10-28 23:21:04,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-28 23:21:04,901 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 4 states have internal predecessors, (12), 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 21 [2021-10-28 23:21:04,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:21:04,903 INFO L225 Difference]: With dead ends: 49 [2021-10-28 23:21:04,903 INFO L226 Difference]: Without dead ends: 49 [2021-10-28 23:21:04,904 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-28 23:21:04,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2021-10-28 23:21:04,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 47. [2021-10-28 23:21:04,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 28 states have (on average 1.2857142857142858) internal successors, (36), 32 states have internal predecessors, (36), 7 states have call successors, (7), 7 states have call predecessors, (7), 8 states have return successors, (8), 7 states have call predecessors, (8), 6 states have call successors, (8) [2021-10-28 23:21:04,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 51 transitions. [2021-10-28 23:21:04,914 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 51 transitions. Word has length 21 [2021-10-28 23:21:04,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:21:04,914 INFO L470 AbstractCegarLoop]: Abstraction has 47 states and 51 transitions. [2021-10-28 23:21:04,915 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 4 states have internal predecessors, (12), 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) [2021-10-28 23:21:04,915 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 51 transitions. [2021-10-28 23:21:04,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-10-28 23:21:04,916 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:21:04,916 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:21:04,940 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_694b8a32-4e44-436e-9caa-4d6b8fcff8c3/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-10-28 23:21:05,130 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_694b8a32-4e44-436e-9caa-4d6b8fcff8c3/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-28 23:21:05,130 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting free_21Err0ASSERT_VIOLATIONMEMORY_FREE === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 70 more)] === [2021-10-28 23:21:05,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:21:05,131 INFO L85 PathProgramCache]: Analyzing trace with hash 311173988, now seen corresponding path program 1 times [2021-10-28 23:21:05,131 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 23:21:05,132 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [613362508] [2021-10-28 23:21:05,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:21:05,132 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 23:21:05,132 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_694b8a32-4e44-436e-9caa-4d6b8fcff8c3/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 23:21:05,133 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_694b8a32-4e44-436e-9caa-4d6b8fcff8c3/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 23:21:05,134 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_694b8a32-4e44-436e-9caa-4d6b8fcff8c3/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-28 23:21:05,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:21:05,342 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 11 conjunts are in the unsatisfiable core [2021-10-28 23:21:05,344 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:21:05,591 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:21:05,592 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 23:21:05,774 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:21:05,774 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 23:21:05,774 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [613362508] [2021-10-28 23:21:05,775 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [613362508] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 23:21:05,775 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:21:05,775 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 7 [2021-10-28 23:21:05,776 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [691775873] [2021-10-28 23:21:05,778 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-28 23:21:05,778 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 23:21:05,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-28 23:21:05,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-10-28 23:21:05,783 INFO L87 Difference]: Start difference. First operand 47 states and 51 transitions. Second operand has 7 states, 6 states have (on average 2.0) internal successors, (12), 5 states have internal predecessors, (12), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2021-10-28 23:21:05,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:21:05,851 INFO L93 Difference]: Finished difference Result 45 states and 46 transitions. [2021-10-28 23:21:05,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-28 23:21:05,852 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 2.0) internal successors, (12), 5 states have internal predecessors, (12), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 21 [2021-10-28 23:21:05,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:21:05,855 INFO L225 Difference]: With dead ends: 45 [2021-10-28 23:21:05,856 INFO L226 Difference]: Without dead ends: 45 [2021-10-28 23:21:05,856 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-10-28 23:21:05,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2021-10-28 23:21:05,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 43. [2021-10-28 23:21:05,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 25 states have (on average 1.16) internal successors, (29), 28 states have internal predecessors, (29), 7 states have call successors, (7), 7 states have call predecessors, (7), 8 states have return successors, (8), 7 states have call predecessors, (8), 6 states have call successors, (8) [2021-10-28 23:21:05,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 44 transitions. [2021-10-28 23:21:05,881 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 44 transitions. Word has length 21 [2021-10-28 23:21:05,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:21:05,882 INFO L470 AbstractCegarLoop]: Abstraction has 43 states and 44 transitions. [2021-10-28 23:21:05,882 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 2.0) internal successors, (12), 5 states have internal predecessors, (12), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2021-10-28 23:21:05,882 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 44 transitions. [2021-10-28 23:21:05,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-10-28 23:21:05,884 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:21:05,884 INFO L513 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] [2021-10-28 23:21:05,899 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_694b8a32-4e44-436e-9caa-4d6b8fcff8c3/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-10-28 23:21:06,099 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_694b8a32-4e44-436e-9caa-4d6b8fcff8c3/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-28 23:21:06,100 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting free_21Err1ASSERT_VIOLATIONMEMORY_FREE === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 70 more)] === [2021-10-28 23:21:06,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:21:06,100 INFO L85 PathProgramCache]: Analyzing trace with hash -1137650385, now seen corresponding path program 1 times [2021-10-28 23:21:06,101 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 23:21:06,101 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [16641698] [2021-10-28 23:21:06,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:21:06,102 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 23:21:06,102 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_694b8a32-4e44-436e-9caa-4d6b8fcff8c3/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 23:21:06,103 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_694b8a32-4e44-436e-9caa-4d6b8fcff8c3/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 23:21:06,107 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_694b8a32-4e44-436e-9caa-4d6b8fcff8c3/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-10-28 23:21:06,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:21:06,385 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 13 conjunts are in the unsatisfiable core [2021-10-28 23:21:06,387 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:21:06,845 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:21:06,845 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 23:21:07,423 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:21:07,423 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 23:21:07,423 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [16641698] [2021-10-28 23:21:07,423 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [16641698] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 23:21:07,423 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:21:07,423 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11, 10] imperfect sequences [] total 20 [2021-10-28 23:21:07,424 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [862726409] [2021-10-28 23:21:07,424 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2021-10-28 23:21:07,424 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 23:21:07,425 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-10-28 23:21:07,425 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=354, Unknown=0, NotChecked=0, Total=420 [2021-10-28 23:21:07,425 INFO L87 Difference]: Start difference. First operand 43 states and 44 transitions. Second operand has 21 states, 18 states have (on average 1.4444444444444444) internal successors, (26), 15 states have internal predecessors, (26), 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) [2021-10-28 23:21:08,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:21:08,439 INFO L93 Difference]: Finished difference Result 56 states and 57 transitions. [2021-10-28 23:21:08,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-10-28 23:21:08,440 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 18 states have (on average 1.4444444444444444) internal successors, (26), 15 states have internal predecessors, (26), 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 22 [2021-10-28 23:21:08,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:21:08,442 INFO L225 Difference]: With dead ends: 56 [2021-10-28 23:21:08,442 INFO L226 Difference]: Without dead ends: 56 [2021-10-28 23:21:08,443 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=121, Invalid=635, Unknown=0, NotChecked=0, Total=756 [2021-10-28 23:21:08,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2021-10-28 23:21:08,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 42. [2021-10-28 23:21:08,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 25 states have (on average 1.12) internal successors, (28), 27 states have internal predecessors, (28), 7 states have call successors, (7), 7 states have call predecessors, (7), 8 states have return successors, (8), 7 states have call predecessors, (8), 6 states have call successors, (8) [2021-10-28 23:21:08,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 43 transitions. [2021-10-28 23:21:08,450 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 43 transitions. Word has length 22 [2021-10-28 23:21:08,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:21:08,450 INFO L470 AbstractCegarLoop]: Abstraction has 42 states and 43 transitions. [2021-10-28 23:21:08,451 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 18 states have (on average 1.4444444444444444) internal successors, (26), 15 states have internal predecessors, (26), 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) [2021-10-28 23:21:08,451 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 43 transitions. [2021-10-28 23:21:08,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-10-28 23:21:08,452 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:21:08,452 INFO L513 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] [2021-10-28 23:21:08,470 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_694b8a32-4e44-436e-9caa-4d6b8fcff8c3/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-10-28 23:21:08,666 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_694b8a32-4e44-436e-9caa-4d6b8fcff8c3/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-28 23:21:08,667 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting free_21Err2ASSERT_VIOLATIONMEMORY_FREE === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 70 more)] === [2021-10-28 23:21:08,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:21:08,667 INFO L85 PathProgramCache]: Analyzing trace with hash -907423160, now seen corresponding path program 1 times [2021-10-28 23:21:08,668 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 23:21:08,668 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1821277073] [2021-10-28 23:21:08,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:21:08,668 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 23:21:08,668 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_694b8a32-4e44-436e-9caa-4d6b8fcff8c3/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 23:21:08,672 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_694b8a32-4e44-436e-9caa-4d6b8fcff8c3/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 23:21:08,719 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_694b8a32-4e44-436e-9caa-4d6b8fcff8c3/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-10-28 23:21:08,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:21:08,920 INFO L263 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 13 conjunts are in the unsatisfiable core [2021-10-28 23:21:08,922 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:21:08,996 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-10-28 23:21:09,170 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:21:09,170 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 23:21:09,417 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:21:09,418 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 23:21:09,418 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1821277073] [2021-10-28 23:21:09,418 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1821277073] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 23:21:09,418 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:21:09,418 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10, 10] imperfect sequences [] total 10 [2021-10-28 23:21:09,418 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1006026501] [2021-10-28 23:21:09,419 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-10-28 23:21:09,419 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 23:21:09,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-10-28 23:21:09,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2021-10-28 23:21:09,420 INFO L87 Difference]: Start difference. First operand 42 states and 43 transitions. Second operand has 11 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 8 states have internal predecessors, (14), 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) [2021-10-28 23:21:09,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:21:09,643 INFO L93 Difference]: Finished difference Result 51 states and 53 transitions. [2021-10-28 23:21:09,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-28 23:21:09,643 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 8 states have internal predecessors, (14), 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 23 [2021-10-28 23:21:09,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:21:09,644 INFO L225 Difference]: With dead ends: 51 [2021-10-28 23:21:09,645 INFO L226 Difference]: Without dead ends: 51 [2021-10-28 23:21:09,645 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 30 SyntacticMatches, 6 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2021-10-28 23:21:09,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2021-10-28 23:21:09,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2021-10-28 23:21:09,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 32 states have (on average 1.09375) internal successors, (35), 34 states have internal predecessors, (35), 8 states have call successors, (8), 8 states have call predecessors, (8), 9 states have return successors, (10), 8 states have call predecessors, (10), 7 states have call successors, (10) [2021-10-28 23:21:09,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 53 transitions. [2021-10-28 23:21:09,653 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 53 transitions. Word has length 23 [2021-10-28 23:21:09,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:21:09,653 INFO L470 AbstractCegarLoop]: Abstraction has 51 states and 53 transitions. [2021-10-28 23:21:09,654 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 8 states have internal predecessors, (14), 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) [2021-10-28 23:21:09,654 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 53 transitions. [2021-10-28 23:21:09,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-10-28 23:21:09,655 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:21:09,655 INFO L513 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] [2021-10-28 23:21:09,674 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_694b8a32-4e44-436e-9caa-4d6b8fcff8c3/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-10-28 23:21:09,855 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_694b8a32-4e44-436e-9caa-4d6b8fcff8c3/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-28 23:21:09,856 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting free_21Err2ASSERT_VIOLATIONMEMORY_FREE === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 70 more)] === [2021-10-28 23:21:09,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:21:09,856 INFO L85 PathProgramCache]: Analyzing trace with hash -1412981785, now seen corresponding path program 1 times [2021-10-28 23:21:09,857 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 23:21:09,857 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1612966841] [2021-10-28 23:21:09,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:21:09,857 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 23:21:09,857 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_694b8a32-4e44-436e-9caa-4d6b8fcff8c3/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 23:21:09,858 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_694b8a32-4e44-436e-9caa-4d6b8fcff8c3/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 23:21:09,867 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_694b8a32-4e44-436e-9caa-4d6b8fcff8c3/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-10-28 23:21:10,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:21:10,118 INFO L263 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-28 23:21:10,120 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:21:10,218 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:21:10,218 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 23:21:10,407 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:21:10,408 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 23:21:10,408 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1612966841] [2021-10-28 23:21:10,408 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1612966841] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 23:21:10,409 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:21:10,409 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-10-28 23:21:10,409 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [627955727] [2021-10-28 23:21:10,411 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-28 23:21:10,411 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 23:21:10,412 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-28 23:21:10,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-28 23:21:10,413 INFO L87 Difference]: Start difference. First operand 51 states and 53 transitions. Second operand has 5 states, 5 states have (on average 2.8) internal successors, (14), 4 states have internal predecessors, (14), 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) [2021-10-28 23:21:10,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:21:10,438 INFO L93 Difference]: Finished difference Result 41 states and 41 transitions. [2021-10-28 23:21:10,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-28 23:21:10,444 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 4 states have internal predecessors, (14), 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 23 [2021-10-28 23:21:10,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:21:10,445 INFO L225 Difference]: With dead ends: 41 [2021-10-28 23:21:10,445 INFO L226 Difference]: Without dead ends: 41 [2021-10-28 23:21:10,446 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-28 23:21:10,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2021-10-28 23:21:10,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2021-10-28 23:21:10,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 25 states have (on average 1.04) internal successors, (26), 26 states have internal predecessors, (26), 7 states have call successors, (7), 7 states have call predecessors, (7), 8 states have return successors, (8), 7 states have call predecessors, (8), 6 states have call successors, (8) [2021-10-28 23:21:10,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 41 transitions. [2021-10-28 23:21:10,449 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 41 transitions. Word has length 23 [2021-10-28 23:21:10,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:21:10,450 INFO L470 AbstractCegarLoop]: Abstraction has 41 states and 41 transitions. [2021-10-28 23:21:10,450 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 4 states have internal predecessors, (14), 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) [2021-10-28 23:21:10,450 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 41 transitions. [2021-10-28 23:21:10,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-10-28 23:21:10,451 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:21:10,451 INFO L513 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] [2021-10-28 23:21:10,473 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_694b8a32-4e44-436e-9caa-4d6b8fcff8c3/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-10-28 23:21:10,673 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_694b8a32-4e44-436e-9caa-4d6b8fcff8c3/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-28 23:21:10,673 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)] === [2021-10-28 23:21:10,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:21:10,674 INFO L85 PathProgramCache]: Analyzing trace with hash -298029978, now seen corresponding path program 1 times [2021-10-28 23:21:10,674 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 23:21:10,674 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [904457952] [2021-10-28 23:21:10,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:21:10,675 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 23:21:10,675 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_694b8a32-4e44-436e-9caa-4d6b8fcff8c3/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 23:21:10,676 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_694b8a32-4e44-436e-9caa-4d6b8fcff8c3/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 23:21:10,681 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_694b8a32-4e44-436e-9caa-4d6b8fcff8c3/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-10-28 23:21:10,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:21:10,952 INFO L263 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 10 conjunts are in the unsatisfiable core [2021-10-28 23:21:10,954 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:21:11,053 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:21:11,053 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 23:21:11,268 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:21:11,269 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 23:21:11,269 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [904457952] [2021-10-28 23:21:11,269 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [904457952] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 23:21:11,269 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:21:11,269 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-10-28 23:21:11,270 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2099106761] [2021-10-28 23:21:11,270 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 23:21:11,270 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 23:21:11,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 23:21:11,271 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 23:21:11,271 INFO L87 Difference]: Start difference. First operand 41 states and 41 transitions. Second operand has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2021-10-28 23:21:11,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:21:11,306 INFO L93 Difference]: Finished difference Result 44 states and 43 transitions. [2021-10-28 23:21:11,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 23:21:11,307 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 25 [2021-10-28 23:21:11,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:21:11,308 INFO L225 Difference]: With dead ends: 44 [2021-10-28 23:21:11,308 INFO L226 Difference]: Without dead ends: 29 [2021-10-28 23:21:11,308 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 23:21:11,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2021-10-28 23:21:11,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2021-10-28 23:21:11,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 17 states have (on average 1.0) internal successors, (17), 17 states have internal predecessors, (17), 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) [2021-10-28 23:21:11,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 28 transitions. [2021-10-28 23:21:11,312 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 28 transitions. Word has length 25 [2021-10-28 23:21:11,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:21:11,312 INFO L470 AbstractCegarLoop]: Abstraction has 29 states and 28 transitions. [2021-10-28 23:21:11,312 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2021-10-28 23:21:11,312 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 28 transitions. [2021-10-28 23:21:11,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-10-28 23:21:11,313 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:21:11,313 INFO L513 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] [2021-10-28 23:21:11,330 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_694b8a32-4e44-436e-9caa-4d6b8fcff8c3/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-10-28 23:21:11,514 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_694b8a32-4e44-436e-9caa-4d6b8fcff8c3/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-28 23:21:11,514 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting mainErr0ENSURES_VIOLATIONMEMORY_LEAK === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 70 more)] === [2021-10-28 23:21:11,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:21:11,515 INFO L85 PathProgramCache]: Analyzing trace with hash -339267371, now seen corresponding path program 1 times [2021-10-28 23:21:11,515 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 23:21:11,515 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1674669036] [2021-10-28 23:21:11,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:21:11,515 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 23:21:11,516 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_694b8a32-4e44-436e-9caa-4d6b8fcff8c3/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 23:21:11,516 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_694b8a32-4e44-436e-9caa-4d6b8fcff8c3/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 23:21:11,518 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_694b8a32-4e44-436e-9caa-4d6b8fcff8c3/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-10-28 23:21:11,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:21:11,751 INFO L263 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 23 conjunts are in the unsatisfiable core [2021-10-28 23:21:11,753 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:21:12,236 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:21:12,236 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 23:21:25,808 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 23:21:25,809 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1674669036] [2021-10-28 23:21:25,810 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Substitution failed: {(= (store |v_old(#valid)_BEFORE_CALL_14| v_entry_point_~dev~0.base_17 (_ bv0 1)) v_prenex_1)=(= (select v_prenex_1 v_antiDerIndex_entry0_1) (select (store |v_old(#valid)_BEFORE_CALL_14| v_entry_point_~dev~0.base_17 (_ bv0 1)) v_antiDerIndex_entry0_1))} [2021-10-28 23:21:25,810 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [247762125] [2021-10-28 23:21:25,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:21:25,810 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-28 23:21:25,811 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_694b8a32-4e44-436e-9caa-4d6b8fcff8c3/bin/uautomizer-GMMbpWq8iD/cvc4 [2021-10-28 23:21:25,813 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_694b8a32-4e44-436e-9caa-4d6b8fcff8c3/bin/uautomizer-GMMbpWq8iD/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-28 23:21:25,843 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_694b8a32-4e44-436e-9caa-4d6b8fcff8c3/bin/uautomizer-GMMbpWq8iD/cvc4 --incremental --print-success --lang smt (10)] Waiting until timeout for monitored process [2021-10-28 23:21:26,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:21:26,325 INFO L263 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 25 conjunts are in the unsatisfiable core [2021-10-28 23:21:26,328 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:21:26,359 INFO L354 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2021-10-28 23:21:26,359 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 26 treesize of output 29 [2021-10-28 23:21:33,026 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:21:33,026 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 23:21:52,948 INFO L354 Elim1Store]: treesize reduction 16, result has 78.1 percent of original size [2021-10-28 23:21:52,949 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 65 treesize of output 112 [2021-10-28 23:21:53,547 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Substitution failed: {(not (= (store |old(#valid)| |free_21_#in~dev.base| (_ bv0 1)) v_prenex_3))=(not (= (select v_prenex_3 v_antiDerIndex_entry0_3) (select (store |old(#valid)| |free_21_#in~dev.base| (_ bv0 1)) v_antiDerIndex_entry0_3)))} [2021-10-28 23:21:53,548 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1768080465] [2021-10-28 23:21:53,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:21:53,548 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:21:53,548 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_694b8a32-4e44-436e-9caa-4d6b8fcff8c3/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:21:53,551 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_694b8a32-4e44-436e-9caa-4d6b8fcff8c3/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:21:53,574 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_694b8a32-4e44-436e-9caa-4d6b8fcff8c3/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-10-28 23:21:53,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:21:53,834 INFO L263 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 22 conjunts are in the unsatisfiable core [2021-10-28 23:21:53,836 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:21:54,142 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:21:54,143 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 23:22:11,446 INFO L354 Elim1Store]: treesize reduction 15, result has 79.5 percent of original size [2021-10-28 23:22:11,446 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 63 treesize of output 111 [2021-10-28 23:22:11,814 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Substitution failed: {(not (= (store |old(#valid)| |free_21_#in~dev.base| (_ bv0 1)) v_prenex_5))=(not (= (select v_prenex_5 v_antiDerIndex_entry0_5) (select (store |old(#valid)| |free_21_#in~dev.base| (_ bv0 1)) v_antiDerIndex_entry0_5)))} [2021-10-28 23:22:11,814 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:22:11,814 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [] total 0 [2021-10-28 23:22:11,814 ERROR L172 FreeRefinementEngine]: Strategy WOLF failed to provide any proof altough trace is infeasible [2021-10-28 23:22:11,814 INFO L627 BasicCegarLoop]: Counterexample might be feasible [2021-10-28 23:22:11,822 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr0ENSURES_VIOLATIONMEMORY_LEAK [2021-10-28 23:22:11,824 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_allocErr0REQUIRES_VIOLATION [2021-10-28 23:22:11,825 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_allocErr1REQUIRES_VIOLATION [2021-10-28 23:22:11,825 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kref_initErr0REQUIRES_VIOLATION [2021-10-28 23:22:11,825 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kref_initErr1REQUIRES_VIOLATION [2021-10-28 23:22:11,825 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr0REQUIRES_VIOLATION [2021-10-28 23:22:11,825 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr1REQUIRES_VIOLATION [2021-10-28 23:22:11,826 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr2REQUIRES_VIOLATION [2021-10-28 23:22:11,826 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr3REQUIRES_VIOLATION [2021-10-28 23:22:11,826 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION [2021-10-28 23:22:11,826 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION [2021-10-28 23:22:11,827 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION [2021-10-28 23:22:11,827 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION [2021-10-28 23:22:11,827 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr0REQUIRES_VIOLATION [2021-10-28 23:22:11,827 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr1REQUIRES_VIOLATION [2021-10-28 23:22:11,828 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr2REQUIRES_VIOLATION [2021-10-28 23:22:11,828 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr3REQUIRES_VIOLATION [2021-10-28 23:22:11,828 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr4REQUIRES_VIOLATION [2021-10-28 23:22:11,828 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr5REQUIRES_VIOLATION [2021-10-28 23:22:11,828 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr6REQUIRES_VIOLATION [2021-10-28 23:22:11,829 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr7REQUIRES_VIOLATION [2021-10-28 23:22:11,829 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_set_drvdataErr0REQUIRES_VIOLATION [2021-10-28 23:22:11,829 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_set_drvdataErr1REQUIRES_VIOLATION [2021-10-28 23:22:11,829 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr0REQUIRES_VIOLATION [2021-10-28 23:22:11,830 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr1REQUIRES_VIOLATION [2021-10-28 23:22:11,830 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr2REQUIRES_VIOLATION [2021-10-28 23:22:11,830 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr3REQUIRES_VIOLATION [2021-10-28 23:22:11,830 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr0REQUIRES_VIOLATION [2021-10-28 23:22:11,830 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr1REQUIRES_VIOLATION [2021-10-28 23:22:11,831 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr2REQUIRES_VIOLATION [2021-10-28 23:22:11,831 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr3REQUIRES_VIOLATION [2021-10-28 23:22:11,831 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_addErr0REQUIRES_VIOLATION [2021-10-28 23:22:11,831 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_addErr1REQUIRES_VIOLATION [2021-10-28 23:22:11,832 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr0REQUIRES_VIOLATION [2021-10-28 23:22:11,832 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr1REQUIRES_VIOLATION [2021-10-28 23:22:11,832 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr2REQUIRES_VIOLATION [2021-10-28 23:22:11,832 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr3REQUIRES_VIOLATION [2021-10-28 23:22:11,832 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr4REQUIRES_VIOLATION [2021-10-28 23:22:11,833 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr5REQUIRES_VIOLATION [2021-10-28 23:22:11,833 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_get_drvdataErr0REQUIRES_VIOLATION [2021-10-28 23:22:11,833 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_get_drvdataErr1REQUIRES_VIOLATION [2021-10-28 23:22:11,833 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr0REQUIRES_VIOLATION [2021-10-28 23:22:11,834 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr1REQUIRES_VIOLATION [2021-10-28 23:22:11,834 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 23:22:11,834 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 23:22:11,834 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 23:22:11,835 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 23:22:11,835 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 23:22:11,835 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 23:22:11,835 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr0REQUIRES_VIOLATION [2021-10-28 23:22:11,836 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr1REQUIRES_VIOLATION [2021-10-28 23:22:11,836 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr2REQUIRES_VIOLATION [2021-10-28 23:22:11,836 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr3REQUIRES_VIOLATION [2021-10-28 23:22:11,836 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr4REQUIRES_VIOLATION [2021-10-28 23:22:11,836 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr5REQUIRES_VIOLATION [2021-10-28 23:22:11,837 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr0REQUIRES_VIOLATION [2021-10-28 23:22:11,837 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr1REQUIRES_VIOLATION [2021-10-28 23:22:11,837 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 23:22:11,837 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 23:22:11,838 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 23:22:11,838 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 23:22:11,838 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 23:22:11,838 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 23:22:11,839 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_createErr0REQUIRES_VIOLATION [2021-10-28 23:22:11,839 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_createErr1REQUIRES_VIOLATION [2021-10-28 23:22:11,839 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr0REQUIRES_VIOLATION [2021-10-28 23:22:11,839 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr1REQUIRES_VIOLATION [2021-10-28 23:22:11,840 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr2REQUIRES_VIOLATION [2021-10-28 23:22:11,840 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr3REQUIRES_VIOLATION [2021-10-28 23:22:11,840 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_add_tailErr0REQUIRES_VIOLATION [2021-10-28 23:22:11,840 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_add_tailErr1REQUIRES_VIOLATION [2021-10-28 23:22:11,840 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location free_21Err0ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 23:22:11,841 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location free_21Err1ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 23:22:11,841 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location free_21Err2ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 23:22:11,849 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_694b8a32-4e44-436e-9caa-4d6b8fcff8c3/bin/uautomizer-GMMbpWq8iD/cvc4 --incremental --print-success --lang smt (10)] Forceful destruction successful, exit code 0 [2021-10-28 23:22:12,071 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_694b8a32-4e44-436e-9caa-4d6b8fcff8c3/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2021-10-28 23:22:12,254 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_694b8a32-4e44-436e-9caa-4d6b8fcff8c3/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-10-28 23:22:12,445 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_694b8a32-4e44-436e-9caa-4d6b8fcff8c3/bin/uautomizer-GMMbpWq8iD/cvc4 --incremental --print-success --lang smt,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_694b8a32-4e44-436e-9caa-4d6b8fcff8c3/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_694b8a32-4e44-436e-9caa-4d6b8fcff8c3/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-28 23:22:12,449 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:22:12,452 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-28 23:22:12,456 WARN L418 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2021-10-28 23:22:12,464 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 11:22:12 BoogieIcfgContainer [2021-10-28 23:22:12,464 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-28 23:22:12,465 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 23:22:12,465 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 23:22:12,465 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 23:22:12,466 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:21:02" (3/4) ... [2021-10-28 23:22:12,468 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-28 23:22:12,468 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 23:22:12,469 INFO L168 Benchmark]: Toolchain (without parser) took 72460.90 ms. Allocated memory was 60.8 MB in the beginning and 111.1 MB in the end (delta: 50.3 MB). Free memory was 38.5 MB in the beginning and 25.0 MB in the end (delta: 13.4 MB). Peak memory consumption was 62.6 MB. Max. memory is 16.1 GB. [2021-10-28 23:22:12,470 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 60.8 MB. Free memory is still 40.5 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:22:12,470 INFO L168 Benchmark]: CACSL2BoogieTranslator took 884.10 ms. Allocated memory is still 60.8 MB. Free memory was 38.3 MB in the beginning and 25.2 MB in the end (delta: 13.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-28 23:22:12,470 INFO L168 Benchmark]: Boogie Preprocessor took 180.30 ms. Allocated memory is still 60.8 MB. Free memory was 25.2 MB in the beginning and 40.1 MB in the end (delta: -14.9 MB). Peak memory consumption was 7.7 MB. Max. memory is 16.1 GB. [2021-10-28 23:22:12,471 INFO L168 Benchmark]: RCFGBuilder took 1775.96 ms. Allocated memory was 60.8 MB in the beginning and 81.8 MB in the end (delta: 21.0 MB). Free memory was 40.1 MB in the beginning and 56.6 MB in the end (delta: -16.5 MB). Peak memory consumption was 32.1 MB. Max. memory is 16.1 GB. [2021-10-28 23:22:12,483 INFO L168 Benchmark]: TraceAbstraction took 69609.41 ms. Allocated memory was 81.8 MB in the beginning and 111.1 MB in the end (delta: 29.4 MB). Free memory was 56.1 MB in the beginning and 25.4 MB in the end (delta: 30.7 MB). Peak memory consumption was 59.3 MB. Max. memory is 16.1 GB. [2021-10-28 23:22:12,483 INFO L168 Benchmark]: Witness Printer took 3.68 ms. Allocated memory is still 111.1 MB. Free memory was 25.4 MB in the beginning and 25.0 MB in the end (delta: 403.7 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:22:12,485 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 60.8 MB. Free memory is still 40.5 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 884.10 ms. Allocated memory is still 60.8 MB. Free memory was 38.3 MB in the beginning and 25.2 MB in the end (delta: 13.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 180.30 ms. Allocated memory is still 60.8 MB. Free memory was 25.2 MB in the beginning and 40.1 MB in the end (delta: -14.9 MB). Peak memory consumption was 7.7 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1775.96 ms. Allocated memory was 60.8 MB in the beginning and 81.8 MB in the end (delta: 21.0 MB). Free memory was 40.1 MB in the beginning and 56.6 MB in the end (delta: -16.5 MB). Peak memory consumption was 32.1 MB. Max. memory is 16.1 GB. * TraceAbstraction took 69609.41 ms. Allocated memory was 81.8 MB in the beginning and 111.1 MB in the end (delta: 29.4 MB). Free memory was 56.1 MB in the beginning and 25.4 MB in the end (delta: 30.7 MB). Peak memory consumption was 59.3 MB. Max. memory is 16.1 GB. * Witness Printer took 3.68 ms. Allocated memory is still 111.1 MB. Free memory was 25.4 MB in the beginning and 25.0 MB in the end (delta: 403.7 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, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 779]: 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 779. Possible FailurePath: [L569] struct ldv_list_head ldv_global_msg_list = { &(ldv_global_msg_list), &(ldv_global_msg_list) }; [L780] CALL entry_point() [L776] CALL, EXPR alloc_21() [L762] CALL, EXPR ldv_malloc(sizeof(struct A21)) [L526] COND TRUE __VERIFIER_nondet_int() [L527] return malloc(size); [L762] RET, EXPR ldv_malloc(sizeof(struct A21)) [L762] struct A21 *p = (struct A21*)ldv_malloc(sizeof(struct A21)); [L763] COND TRUE \read(*p) [L764] return &p->dev; [L776] RET, EXPR alloc_21() [L776] struct ldv_device *dev = alloc_21(); [L777] CALL free_21(dev) [L770] COND TRUE \read(*dev) [L771] const typeof( ((struct A21 *)0)->dev ) *__mptr = (dev); [L771] struct A21 *p = ({ const typeof( ((struct A21 *)0)->dev ) *__mptr = (dev); (struct A21 *)( (char *)__mptr - ((size_t) &((struct A21 *)0)->dev) );}); [L772] free(p) [L772] free(p) [L772] free(p) [L777] RET free_21(dev) [L780] 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: 772]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 772]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 772]: 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: 69.5s, OverallIterations: 8, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 216 SDtfs, 123 SDslu, 976 SDs, 0 SdLazy, 610 SolverSat, 16 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 319 GetRequests, 250 SyntacticMatches, 6 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 1.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=105occurred in iteration=0, InterpolantAutomatonStates: 65, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 7 MinimizatonAttempts, 24 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 17.5s InterpolantComputationTime, 184 NumberOfCodeBlocks, 184 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 325 ConstructedInterpolants, 3 QuantifiedInterpolants, 1256 SizeOfPredicates, 20 NumberOfNonLiveVariables, 695 ConjunctsInSsa, 92 ConjunctsInUnsatCore, 15 InterpolantComputations, 15 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 [2021-10-28 23:22:12,521 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_694b8a32-4e44-436e-9caa-4d6b8fcff8c3/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...