./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/list-ext-properties/test-0019_1-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_9a4761a2-e8aa-41d5-99dc-d5f9e1048f89/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_9a4761a2-e8aa-41d5-99dc-d5f9e1048f89/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_9a4761a2-e8aa-41d5-99dc-d5f9e1048f89/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_9a4761a2-e8aa-41d5-99dc-d5f9e1048f89/bin/uautomizer/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/list-ext-properties/test-0019_1-1.i -s /tmp/vcloud-vcloud-master/worker/run_dir_9a4761a2-e8aa-41d5-99dc-d5f9e1048f89/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_9a4761a2-e8aa-41d5-99dc-d5f9e1048f89/bin/uautomizer --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 bdb7b41689d384418a154f01910b0fd527032012 .................................................................................................................................. Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_9a4761a2-e8aa-41d5-99dc-d5f9e1048f89/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_9a4761a2-e8aa-41d5-99dc-d5f9e1048f89/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_9a4761a2-e8aa-41d5-99dc-d5f9e1048f89/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_9a4761a2-e8aa-41d5-99dc-d5f9e1048f89/bin/uautomizer/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/list-ext-properties/test-0019_1-1.i -s /tmp/vcloud-vcloud-master/worker/run_dir_9a4761a2-e8aa-41d5-99dc-d5f9e1048f89/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_9a4761a2-e8aa-41d5-99dc-d5f9e1048f89/bin/uautomizer --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 bdb7b41689d384418a154f01910b0fd527032012 ....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-30 01:02:29,892 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 01:02:29,901 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 01:02:29,984 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 01:02:29,986 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 01:02:29,991 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 01:02:29,995 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 01:02:30,000 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 01:02:30,003 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 01:02:30,010 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 01:02:30,012 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 01:02:30,015 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 01:02:30,015 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 01:02:30,021 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 01:02:30,023 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 01:02:30,025 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 01:02:30,027 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 01:02:30,033 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 01:02:30,037 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 01:02:30,050 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 01:02:30,053 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 01:02:30,055 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 01:02:30,058 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 01:02:30,060 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 01:02:30,071 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 01:02:30,072 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 01:02:30,072 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 01:02:30,075 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 01:02:30,077 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 01:02:30,078 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 01:02:30,079 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 01:02:30,081 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 01:02:30,083 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 01:02:30,085 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 01:02:30,087 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 01:02:30,087 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 01:02:30,088 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 01:02:30,089 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 01:02:30,089 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 01:02:30,091 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 01:02:30,092 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 01:02:30,095 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_9a4761a2-e8aa-41d5-99dc-d5f9e1048f89/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2020-11-30 01:02:30,151 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 01:02:30,152 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 01:02:30,154 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-30 01:02:30,155 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-30 01:02:30,155 INFO L138 SettingsManager]: * Use SBE=true [2020-11-30 01:02:30,155 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 01:02:30,156 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-30 01:02:30,156 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-30 01:02:30,156 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-30 01:02:30,157 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-30 01:02:30,158 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 01:02:30,158 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-11-30 01:02:30,159 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-11-30 01:02:30,159 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2020-11-30 01:02:30,159 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-30 01:02:30,160 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-30 01:02:30,160 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-30 01:02:30,160 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 01:02:30,161 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 01:02:30,161 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-30 01:02:30,161 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-30 01:02:30,161 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-30 01:02:30,162 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-30 01:02:30,162 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 01:02:30,162 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-30 01:02:30,163 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-30 01:02:30,163 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-30 01:02:30,163 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-30 01:02:30,164 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-vcloud-master/worker/run_dir_9a4761a2-e8aa-41d5-99dc-d5f9e1048f89/bin/uautomizer/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_9a4761a2-e8aa-41d5-99dc-d5f9e1048f89/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bdb7b41689d384418a154f01910b0fd527032012 [2020-11-30 01:02:30,535 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 01:02:30,566 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 01:02:30,570 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 01:02:30,572 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 01:02:30,573 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 01:02:30,574 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_9a4761a2-e8aa-41d5-99dc-d5f9e1048f89/bin/uautomizer/../../sv-benchmarks/c/list-ext-properties/test-0019_1-1.i [2020-11-30 01:02:30,680 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_9a4761a2-e8aa-41d5-99dc-d5f9e1048f89/bin/uautomizer/data/9ade87cd7/0385bd4559664646974d8ca39ffc738e/FLAG67ae67d67 [2020-11-30 01:02:31,353 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 01:02:31,354 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_9a4761a2-e8aa-41d5-99dc-d5f9e1048f89/sv-benchmarks/c/list-ext-properties/test-0019_1-1.i [2020-11-30 01:02:31,369 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_9a4761a2-e8aa-41d5-99dc-d5f9e1048f89/bin/uautomizer/data/9ade87cd7/0385bd4559664646974d8ca39ffc738e/FLAG67ae67d67 [2020-11-30 01:02:31,605 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_9a4761a2-e8aa-41d5-99dc-d5f9e1048f89/bin/uautomizer/data/9ade87cd7/0385bd4559664646974d8ca39ffc738e [2020-11-30 01:02:31,608 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 01:02:31,610 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-11-30 01:02:31,620 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 01:02:31,620 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 01:02:31,624 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 01:02:31,626 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 01:02:31" (1/1) ... [2020-11-30 01:02:31,628 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@64b00d7e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:02:31, skipping insertion in model container [2020-11-30 01:02:31,628 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 01:02:31" (1/1) ... [2020-11-30 01:02:31,643 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 01:02:31,703 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 01:02:32,040 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 01:02:32,052 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) [2020-11-30 01:02:32,053 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@5c6f36ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:02:32, skipping insertion in model container [2020-11-30 01:02:32,053 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 01:02:32,054 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.preprocessor [2020-11-30 01:02:32,059 INFO L168 Benchmark]: Toolchain (without parser) took 444.63 ms. Allocated memory is still 102.8 MB. Free memory was 73.2 MB in the beginning and 78.3 MB in the end (delta: -5.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-30 01:02:32,060 INFO L168 Benchmark]: CDTParser took 0.35 ms. Allocated memory is still 102.8 MB. Free memory is still 62.3 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 01:02:32,063 INFO L168 Benchmark]: CACSL2BoogieTranslator took 433.69 ms. Allocated memory is still 102.8 MB. Free memory was 73.0 MB in the beginning and 78.3 MB in the end (delta: -5.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-30 01:02:32,065 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35 ms. Allocated memory is still 102.8 MB. Free memory is still 62.3 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 433.69 ms. Allocated memory is still 102.8 MB. Free memory was 73.0 MB in the beginning and 78.3 MB in the end (delta: -5.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 529]: 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 0.2.0-a4ecdab [2020-11-30 01:02:34,489 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 01:02:34,494 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 01:02:34,553 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 01:02:34,553 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 01:02:34,559 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 01:02:34,562 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 01:02:34,567 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 01:02:34,571 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 01:02:34,577 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 01:02:34,579 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 01:02:34,586 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 01:02:34,587 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 01:02:34,591 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 01:02:34,593 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 01:02:34,595 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 01:02:34,596 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 01:02:34,601 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 01:02:34,603 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 01:02:34,606 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 01:02:34,607 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 01:02:34,614 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 01:02:34,615 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 01:02:34,617 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 01:02:34,622 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 01:02:34,626 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 01:02:34,627 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 01:02:34,628 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 01:02:34,630 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 01:02:34,631 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 01:02:34,632 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 01:02:34,633 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 01:02:34,634 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 01:02:34,636 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 01:02:34,637 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 01:02:34,638 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 01:02:34,639 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 01:02:34,639 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 01:02:34,639 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 01:02:34,641 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 01:02:34,642 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 01:02:34,643 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_9a4761a2-e8aa-41d5-99dc-d5f9e1048f89/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2020-11-30 01:02:34,694 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 01:02:34,694 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 01:02:34,698 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-30 01:02:34,698 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-30 01:02:34,699 INFO L138 SettingsManager]: * Use SBE=true [2020-11-30 01:02:34,699 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 01:02:34,699 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-30 01:02:34,699 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-30 01:02:34,700 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-30 01:02:34,700 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-30 01:02:34,701 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 01:02:34,701 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-11-30 01:02:34,702 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-11-30 01:02:34,702 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2020-11-30 01:02:34,702 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-30 01:02:34,702 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-30 01:02:34,703 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-11-30 01:02:34,703 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-11-30 01:02:34,703 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-30 01:02:34,703 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 01:02:34,704 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 01:02:34,704 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-30 01:02:34,704 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-30 01:02:34,704 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-30 01:02:34,705 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-30 01:02:34,705 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 01:02:34,705 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-30 01:02:34,705 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-11-30 01:02:34,706 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-11-30 01:02:34,706 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-30 01:02:34,706 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-30 01:02:34,706 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-vcloud-master/worker/run_dir_9a4761a2-e8aa-41d5-99dc-d5f9e1048f89/bin/uautomizer/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_9a4761a2-e8aa-41d5-99dc-d5f9e1048f89/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bdb7b41689d384418a154f01910b0fd527032012 [2020-11-30 01:02:35,097 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 01:02:35,144 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 01:02:35,149 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 01:02:35,151 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 01:02:35,152 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 01:02:35,153 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_9a4761a2-e8aa-41d5-99dc-d5f9e1048f89/bin/uautomizer/../../sv-benchmarks/c/list-ext-properties/test-0019_1-1.i [2020-11-30 01:02:35,257 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_9a4761a2-e8aa-41d5-99dc-d5f9e1048f89/bin/uautomizer/data/c7a9d7c3d/134d4b979b0c4317bf62ca843a0a72c0/FLAG05113eff3 [2020-11-30 01:02:35,868 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 01:02:35,868 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_9a4761a2-e8aa-41d5-99dc-d5f9e1048f89/sv-benchmarks/c/list-ext-properties/test-0019_1-1.i [2020-11-30 01:02:35,882 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_9a4761a2-e8aa-41d5-99dc-d5f9e1048f89/bin/uautomizer/data/c7a9d7c3d/134d4b979b0c4317bf62ca843a0a72c0/FLAG05113eff3 [2020-11-30 01:02:36,147 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_9a4761a2-e8aa-41d5-99dc-d5f9e1048f89/bin/uautomizer/data/c7a9d7c3d/134d4b979b0c4317bf62ca843a0a72c0 [2020-11-30 01:02:36,150 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 01:02:36,151 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-11-30 01:02:36,153 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 01:02:36,153 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 01:02:36,156 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 01:02:36,157 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 01:02:36" (1/1) ... [2020-11-30 01:02:36,159 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3052fa50 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:02:36, skipping insertion in model container [2020-11-30 01:02:36,159 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 01:02:36" (1/1) ... [2020-11-30 01:02:36,172 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 01:02:36,240 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 01:02:36,528 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 01:02:36,577 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2020-11-30 01:02:36,583 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 01:02:36,629 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 01:02:36,645 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 01:02:36,698 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 01:02:36,762 INFO L208 MainTranslator]: Completed translation [2020-11-30 01:02:36,763 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:02:36 WrapperNode [2020-11-30 01:02:36,763 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 01:02:36,764 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 01:02:36,764 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 01:02:36,764 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 01:02:36,774 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:02:36" (1/1) ... [2020-11-30 01:02:36,774 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:02:36" (1/1) ... [2020-11-30 01:02:36,791 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:02:36" (1/1) ... [2020-11-30 01:02:36,791 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:02:36" (1/1) ... [2020-11-30 01:02:36,822 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:02:36" (1/1) ... [2020-11-30 01:02:36,827 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:02:36" (1/1) ... [2020-11-30 01:02:36,832 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:02:36" (1/1) ... [2020-11-30 01:02:36,850 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 01:02:36,851 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 01:02:36,851 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 01:02:36,851 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 01:02:36,852 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:02:36" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9a4761a2-e8aa-41d5-99dc-d5f9e1048f89/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-30 01:02:36,909 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-11-30 01:02:36,909 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 01:02:36,909 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.setCurrentRoundingMode [2020-11-30 01:02:36,910 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-11-30 01:02:36,910 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2020-11-30 01:02:36,911 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2020-11-30 01:02:36,911 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2020-11-30 01:02:36,911 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2020-11-30 01:02:36,911 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2020-11-30 01:02:36,912 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_data [2020-11-30 01:02:36,912 INFO L138 BoogieDeclarations]: Found implementation of procedure free_data [2020-11-30 01:02:36,912 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-11-30 01:02:36,912 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-11-30 01:02:36,913 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-11-30 01:02:36,913 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2020-11-30 01:02:36,913 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2020-11-30 01:02:36,913 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-11-30 01:02:36,913 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-30 01:02:36,913 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-11-30 01:02:36,916 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-11-30 01:02:36,917 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-11-30 01:02:36,917 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-11-30 01:02:36,917 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-11-30 01:02:36,917 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-11-30 01:02:36,917 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-11-30 01:02:36,917 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-11-30 01:02:36,917 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-11-30 01:02:36,917 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-11-30 01:02:36,917 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-11-30 01:02:36,917 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-11-30 01:02:36,918 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-11-30 01:02:36,918 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-11-30 01:02:36,918 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-11-30 01:02:36,918 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-11-30 01:02:36,918 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2020-11-30 01:02:36,919 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2020-11-30 01:02:36,919 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2020-11-30 01:02:36,919 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2020-11-30 01:02:36,919 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2020-11-30 01:02:36,919 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-11-30 01:02:36,919 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-11-30 01:02:36,919 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-11-30 01:02:36,920 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-11-30 01:02:36,920 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-11-30 01:02:36,920 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-11-30 01:02:36,920 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-11-30 01:02:36,920 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-11-30 01:02:36,920 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-11-30 01:02:36,921 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-11-30 01:02:36,921 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-11-30 01:02:36,921 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-11-30 01:02:36,921 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-11-30 01:02:36,922 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-11-30 01:02:36,922 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-11-30 01:02:36,922 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-11-30 01:02:36,922 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-11-30 01:02:36,922 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-11-30 01:02:36,922 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-11-30 01:02:36,922 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-11-30 01:02:36,923 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-11-30 01:02:36,923 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-11-30 01:02:36,923 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-11-30 01:02:36,923 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-11-30 01:02:36,923 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-11-30 01:02:36,923 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-11-30 01:02:36,924 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-11-30 01:02:36,925 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-11-30 01:02:36,925 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-11-30 01:02:36,925 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-11-30 01:02:36,926 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-11-30 01:02:36,926 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-11-30 01:02:36,926 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-11-30 01:02:36,926 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-11-30 01:02:36,926 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-11-30 01:02:36,926 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-11-30 01:02:36,926 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-11-30 01:02:36,926 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-11-30 01:02:36,926 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-11-30 01:02:36,926 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-11-30 01:02:36,926 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-11-30 01:02:36,927 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2020-11-30 01:02:36,927 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-11-30 01:02:36,927 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2020-11-30 01:02:36,927 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-11-30 01:02:36,927 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-11-30 01:02:36,927 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2020-11-30 01:02:36,928 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-11-30 01:02:36,928 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-11-30 01:02:36,928 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-11-30 01:02:36,928 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-11-30 01:02:36,928 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-11-30 01:02:36,928 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-11-30 01:02:36,928 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-11-30 01:02:36,928 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-11-30 01:02:36,928 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-11-30 01:02:36,928 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-11-30 01:02:36,928 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-11-30 01:02:36,929 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-11-30 01:02:36,929 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-11-30 01:02:36,929 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-11-30 01:02:36,929 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-11-30 01:02:36,929 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-11-30 01:02:36,929 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-11-30 01:02:36,929 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-11-30 01:02:36,929 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-11-30 01:02:36,930 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-11-30 01:02:36,930 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-11-30 01:02:36,930 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-11-30 01:02:36,930 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-11-30 01:02:36,930 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-11-30 01:02:36,930 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-11-30 01:02:36,930 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-11-30 01:02:36,930 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-11-30 01:02:36,930 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-11-30 01:02:36,931 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-11-30 01:02:36,931 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-11-30 01:02:36,931 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-11-30 01:02:36,931 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-11-30 01:02:36,931 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-11-30 01:02:36,931 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-11-30 01:02:36,931 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-11-30 01:02:36,931 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-11-30 01:02:36,932 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-11-30 01:02:36,932 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-11-30 01:02:36,932 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_data [2020-11-30 01:02:36,932 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-11-30 01:02:36,932 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-11-30 01:02:36,932 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-11-30 01:02:36,932 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-11-30 01:02:36,932 INFO L130 BoogieDeclarations]: Found specification of procedure free_data [2020-11-30 01:02:36,932 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-11-30 01:02:36,933 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-30 01:02:36,933 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-11-30 01:02:36,933 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-11-30 01:02:36,933 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-11-30 01:02:36,933 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 01:02:36,933 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.setCurrentRoundingMode [2020-11-30 01:02:36,933 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2020-11-30 01:02:36,933 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2020-11-30 01:02:37,802 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 01:02:37,802 INFO L298 CfgBuilder]: Removed 0 assume(true) statements. [2020-11-30 01:02:37,804 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:02:37 BoogieIcfgContainer [2020-11-30 01:02:37,804 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 01:02:37,806 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-30 01:02:37,806 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-30 01:02:37,808 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-30 01:02:37,808 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.11 01:02:36" (1/3) ... [2020-11-30 01:02:37,809 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@603eee94 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 01:02:37, skipping insertion in model container [2020-11-30 01:02:37,809 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:02:36" (2/3) ... [2020-11-30 01:02:37,809 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@603eee94 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 01:02:37, skipping insertion in model container [2020-11-30 01:02:37,810 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:02:37" (3/3) ... [2020-11-30 01:02:37,811 INFO L111 eAbstractionObserver]: Analyzing ICFG test-0019_1-1.i [2020-11-30 01:02:37,821 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-30 01:02:37,826 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 32 error locations. [2020-11-30 01:02:37,837 INFO L253 AbstractCegarLoop]: Starting to check reachability of 32 error locations. [2020-11-30 01:02:37,857 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-30 01:02:37,857 INFO L378 AbstractCegarLoop]: Hoare is false [2020-11-30 01:02:37,857 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-30 01:02:37,857 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-30 01:02:37,858 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-30 01:02:37,858 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-30 01:02:37,858 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-30 01:02:37,858 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-30 01:02:37,873 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states. [2020-11-30 01:02:37,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-11-30 01:02:37,880 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:02:37,880 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:02:37,881 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, alloc_dataErr4REQUIRES_VIOLATION, alloc_dataErr9REQUIRES_VIOLATION, alloc_dataErr3REQUIRES_VIOLATION, alloc_dataErr8REQUIRES_VIOLATION, alloc_dataErr2REQUIRES_VIOLATION, alloc_dataErr7REQUIRES_VIOLATION, alloc_dataErr1REQUIRES_VIOLATION, alloc_dataErr6REQUIRES_VIOLATION, alloc_dataErr11REQUIRES_VIOLATION, alloc_dataErr0REQUIRES_VIOLATION, alloc_dataErr5REQUIRES_VIOLATION, alloc_dataErr10REQUIRES_VIOLATION, free_dataErr7REQUIRES_VIOLATION, free_dataErr8ASSERT_VIOLATIONMEMORY_FREE, free_dataErr17REQUIRES_VIOLATION, free_dataErr6REQUIRES_VIOLATION, free_dataErr9ASSERT_VIOLATIONMEMORY_FREE, free_dataErr16REQUIRES_VIOLATION, free_dataErr5REQUIRES_VIOLATION, free_dataErr1REQUIRES_VIOLATION, free_dataErr0REQUIRES_VIOLATION, free_dataErr15REQUIRES_VIOLATION, free_dataErr4REQUIRES_VIOLATION, free_dataErr10ASSERT_VIOLATIONMEMORY_FREE, free_dataErr14REQUIRES_VIOLATION, free_dataErr3REQUIRES_VIOLATION, free_dataErr11ASSERT_VIOLATIONMEMORY_FREE, free_dataErr13ASSERT_VIOLATIONMEMORY_FREE, free_dataErr2REQUIRES_VIOLATION, free_dataErr12ASSERT_VIOLATIONMEMORY_FREE]=== [2020-11-30 01:02:37,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:02:37,886 INFO L82 PathProgramCache]: Analyzing trace with hash -1856804665, now seen corresponding path program 1 times [2020-11-30 01:02:37,898 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-30 01:02:37,898 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1734025243] [2020-11-30 01:02:37,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9a4761a2-e8aa-41d5-99dc-d5f9e1048f89/bin/uautomizer/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2020-11-30 01:02:38,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:02:38,077 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 14 conjunts are in the unsatisfiable core [2020-11-30 01:02:38,082 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 01:02:38,147 INFO L384 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 [2020-11-30 01:02:38,147 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-30 01:02:38,163 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-30 01:02:38,168 INFO L384 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 [2020-11-30 01:02:38,169 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-11-30 01:02:38,178 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-30 01:02:38,178 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-11-30 01:02:38,178 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2020-11-30 01:02:38,277 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-11-30 01:02:38,278 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 15 [2020-11-30 01:02:38,279 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-30 01:02:38,294 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-30 01:02:38,301 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 14 [2020-11-30 01:02:38,302 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-11-30 01:02:38,327 INFO L625 ElimStorePlain]: treesize reduction 4, result has 77.8 percent of original size [2020-11-30 01:02:38,328 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-30 01:02:38,328 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:25, output treesize:14 [2020-11-30 01:02:38,357 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:02:38,358 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-30 01:02:38,457 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-30 01:02:39,214 WARN L193 SmtUtils]: Spent 539.00 ms on a formula simplification that was a NOOP. DAG size: 20 [2020-11-30 01:02:41,257 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_prenex_1 (_ BitVec 32))) (or (not (= (_ bv0 1) (select |c_#valid| v_prenex_1))) (bvule (bvadd |c_main_~#data~0.offset| (_ bv4 32)) (select (store |c_#length| v_prenex_1 (_ bv4 32)) |c_main_~#data~0.base|)))) (or (forall ((|v_alloc_data_#t~malloc5.base_3| (_ BitVec 32))) (not (= (_ bv0 1) (select |c_#valid| |v_alloc_data_#t~malloc5.base_3|)))) (bvule |c_main_~#data~0.offset| (bvadd |c_main_~#data~0.offset| (_ bv4 32))))) is different from false [2020-11-30 01:02:41,308 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:02:41,309 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1734025243] [2020-11-30 01:02:41,309 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:02:41,309 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 7 [2020-11-30 01:02:41,310 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [829722964] [2020-11-30 01:02:41,314 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-11-30 01:02:41,314 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-30 01:02:41,343 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-30 01:02:41,344 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=30, Unknown=1, NotChecked=10, Total=56 [2020-11-30 01:02:41,346 INFO L87 Difference]: Start difference. First operand 74 states. Second operand 8 states. [2020-11-30 01:02:42,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:02:42,330 INFO L93 Difference]: Finished difference Result 72 states and 72 transitions. [2020-11-30 01:02:42,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-30 01:02:42,332 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 9 [2020-11-30 01:02:42,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:02:42,341 INFO L225 Difference]: With dead ends: 72 [2020-11-30 01:02:42,341 INFO L226 Difference]: Without dead ends: 69 [2020-11-30 01:02:42,342 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=27, Invalid=48, Unknown=1, NotChecked=14, Total=90 [2020-11-30 01:02:42,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2020-11-30 01:02:42,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 69. [2020-11-30 01:02:42,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 69 states. [2020-11-30 01:02:42,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 69 transitions. [2020-11-30 01:02:42,377 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 69 transitions. Word has length 9 [2020-11-30 01:02:42,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:02:42,378 INFO L481 AbstractCegarLoop]: Abstraction has 69 states and 69 transitions. [2020-11-30 01:02:42,378 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-11-30 01:02:42,378 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 69 transitions. [2020-11-30 01:02:42,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-11-30 01:02:42,378 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:02:42,379 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:02:42,581 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-11-30 01:02:42,582 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, alloc_dataErr4REQUIRES_VIOLATION, alloc_dataErr9REQUIRES_VIOLATION, alloc_dataErr3REQUIRES_VIOLATION, alloc_dataErr8REQUIRES_VIOLATION, alloc_dataErr2REQUIRES_VIOLATION, alloc_dataErr7REQUIRES_VIOLATION, alloc_dataErr1REQUIRES_VIOLATION, alloc_dataErr6REQUIRES_VIOLATION, alloc_dataErr11REQUIRES_VIOLATION, alloc_dataErr0REQUIRES_VIOLATION, alloc_dataErr5REQUIRES_VIOLATION, alloc_dataErr10REQUIRES_VIOLATION, free_dataErr7REQUIRES_VIOLATION, free_dataErr8ASSERT_VIOLATIONMEMORY_FREE, free_dataErr17REQUIRES_VIOLATION, free_dataErr6REQUIRES_VIOLATION, free_dataErr9ASSERT_VIOLATIONMEMORY_FREE, free_dataErr16REQUIRES_VIOLATION, free_dataErr5REQUIRES_VIOLATION, free_dataErr1REQUIRES_VIOLATION, free_dataErr0REQUIRES_VIOLATION, free_dataErr15REQUIRES_VIOLATION, free_dataErr4REQUIRES_VIOLATION, free_dataErr10ASSERT_VIOLATIONMEMORY_FREE, free_dataErr14REQUIRES_VIOLATION, free_dataErr3REQUIRES_VIOLATION, free_dataErr11ASSERT_VIOLATIONMEMORY_FREE, free_dataErr13ASSERT_VIOLATIONMEMORY_FREE, free_dataErr2REQUIRES_VIOLATION, free_dataErr12ASSERT_VIOLATIONMEMORY_FREE]=== [2020-11-30 01:02:42,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:02:42,583 INFO L82 PathProgramCache]: Analyzing trace with hash -1856804666, now seen corresponding path program 1 times [2020-11-30 01:02:42,583 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-30 01:02:42,583 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [440530278] [2020-11-30 01:02:42,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9a4761a2-e8aa-41d5-99dc-d5f9e1048f89/bin/uautomizer/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2020-11-30 01:02:42,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:02:42,777 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 7 conjunts are in the unsatisfiable core [2020-11-30 01:02:42,779 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 01:02:42,795 INFO L384 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 [2020-11-30 01:02:42,795 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-30 01:02:42,802 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-30 01:02:42,802 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-11-30 01:02:42,802 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2020-11-30 01:02:42,848 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-11-30 01:02:42,849 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 28 [2020-11-30 01:02:42,850 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-30 01:02:42,878 INFO L625 ElimStorePlain]: treesize reduction 14, result has 44.0 percent of original size [2020-11-30 01:02:42,880 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-30 01:02:42,880 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:12, output treesize:11 [2020-11-30 01:02:42,900 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:02:42,900 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-30 01:02:42,930 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:02:42,930 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [440530278] [2020-11-30 01:02:42,930 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:02:42,930 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2020-11-30 01:02:42,931 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [952081659] [2020-11-30 01:02:42,934 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-30 01:02:42,934 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-30 01:02:42,935 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-30 01:02:42,935 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-30 01:02:42,935 INFO L87 Difference]: Start difference. First operand 69 states and 69 transitions. Second operand 5 states. [2020-11-30 01:02:43,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:02:43,228 INFO L93 Difference]: Finished difference Result 65 states and 65 transitions. [2020-11-30 01:02:43,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-30 01:02:43,229 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 9 [2020-11-30 01:02:43,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:02:43,230 INFO L225 Difference]: With dead ends: 65 [2020-11-30 01:02:43,230 INFO L226 Difference]: Without dead ends: 65 [2020-11-30 01:02:43,231 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 13 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-11-30 01:02:43,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2020-11-30 01:02:43,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 65. [2020-11-30 01:02:43,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65 states. [2020-11-30 01:02:43,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 65 transitions. [2020-11-30 01:02:43,238 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 65 transitions. Word has length 9 [2020-11-30 01:02:43,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:02:43,239 INFO L481 AbstractCegarLoop]: Abstraction has 65 states and 65 transitions. [2020-11-30 01:02:43,239 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-30 01:02:43,239 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 65 transitions. [2020-11-30 01:02:43,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-30 01:02:43,239 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:02:43,239 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:02:43,455 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-11-30 01:02:43,458 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, alloc_dataErr4REQUIRES_VIOLATION, alloc_dataErr9REQUIRES_VIOLATION, alloc_dataErr3REQUIRES_VIOLATION, alloc_dataErr8REQUIRES_VIOLATION, alloc_dataErr2REQUIRES_VIOLATION, alloc_dataErr7REQUIRES_VIOLATION, alloc_dataErr1REQUIRES_VIOLATION, alloc_dataErr6REQUIRES_VIOLATION, alloc_dataErr11REQUIRES_VIOLATION, alloc_dataErr0REQUIRES_VIOLATION, alloc_dataErr5REQUIRES_VIOLATION, alloc_dataErr10REQUIRES_VIOLATION, free_dataErr7REQUIRES_VIOLATION, free_dataErr8ASSERT_VIOLATIONMEMORY_FREE, free_dataErr17REQUIRES_VIOLATION, free_dataErr6REQUIRES_VIOLATION, free_dataErr9ASSERT_VIOLATIONMEMORY_FREE, free_dataErr16REQUIRES_VIOLATION, free_dataErr5REQUIRES_VIOLATION, free_dataErr1REQUIRES_VIOLATION, free_dataErr0REQUIRES_VIOLATION, free_dataErr15REQUIRES_VIOLATION, free_dataErr4REQUIRES_VIOLATION, free_dataErr10ASSERT_VIOLATIONMEMORY_FREE, free_dataErr14REQUIRES_VIOLATION, free_dataErr3REQUIRES_VIOLATION, free_dataErr11ASSERT_VIOLATIONMEMORY_FREE, free_dataErr13ASSERT_VIOLATIONMEMORY_FREE, free_dataErr2REQUIRES_VIOLATION, free_dataErr12ASSERT_VIOLATIONMEMORY_FREE]=== [2020-11-30 01:02:43,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:02:43,459 INFO L82 PathProgramCache]: Analyzing trace with hash -1977855576, now seen corresponding path program 1 times [2020-11-30 01:02:43,459 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-30 01:02:43,460 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1521983369] [2020-11-30 01:02:43,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9a4761a2-e8aa-41d5-99dc-d5f9e1048f89/bin/uautomizer/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2020-11-30 01:02:43,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:02:43,657 INFO L263 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 17 conjunts are in the unsatisfiable core [2020-11-30 01:02:43,659 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 01:02:43,673 INFO L384 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 [2020-11-30 01:02:43,673 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-30 01:02:43,684 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-30 01:02:43,695 INFO L384 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 [2020-11-30 01:02:43,695 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-11-30 01:02:43,708 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-30 01:02:43,708 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-11-30 01:02:43,708 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2020-11-30 01:02:43,762 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-11-30 01:02:43,762 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 15 [2020-11-30 01:02:43,763 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-30 01:02:43,779 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-30 01:02:43,784 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 14 [2020-11-30 01:02:43,785 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-11-30 01:02:43,807 INFO L625 ElimStorePlain]: treesize reduction 4, result has 77.8 percent of original size [2020-11-30 01:02:43,808 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-30 01:02:43,808 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:25, output treesize:14 [2020-11-30 01:02:43,880 INFO L441 ElimStorePlain]: Different costs {1=[|v_#valid_69|], 3=[|v_#length_54|]} [2020-11-30 01:02:43,896 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-11-30 01:02:43,896 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 17 [2020-11-30 01:02:43,897 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-30 01:02:43,916 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-30 01:02:43,959 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-11-30 01:02:43,959 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 46 [2020-11-30 01:02:43,961 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-11-30 01:02:44,009 INFO L625 ElimStorePlain]: treesize reduction 28, result has 42.9 percent of original size [2020-11-30 01:02:44,010 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-11-30 01:02:44,010 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:34, output treesize:21 [2020-11-30 01:02:44,030 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:02:44,031 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-30 01:02:44,112 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-30 01:02:46,461 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 22 [2020-11-30 01:02:46,463 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-30 01:02:46,537 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-11-30 01:02:46,537 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 17 [2020-11-30 01:02:46,538 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-30 01:02:46,552 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-11-30 01:02:46,553 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 17 [2020-11-30 01:02:46,553 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-11-30 01:02:46,606 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-30 01:02:46,612 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2020-11-30 01:02:46,613 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:44, output treesize:22 [2020-11-30 01:02:46,704 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-30 01:02:49,806 WARN L193 SmtUtils]: Spent 918.00 ms on a formula simplification that was a NOOP. DAG size: 22 [2020-11-30 01:02:51,838 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((|v_alloc_data_#t~malloc5.base_5| (_ BitVec 32))) (or (not (= (select |c_#valid| |v_alloc_data_#t~malloc5.base_5|) (_ bv0 1))) (bvule (bvadd |c_main_~#data~0.offset| (_ bv8 32)) (select (store |c_#length| |v_alloc_data_#t~malloc5.base_5| (_ bv4 32)) |c_main_~#data~0.base|)))) (or (forall ((v_prenex_3 (_ BitVec 32))) (not (= (select |c_#valid| v_prenex_3) (_ bv0 1)))) (bvule (bvadd |c_main_~#data~0.offset| (_ bv4 32)) (bvadd |c_main_~#data~0.offset| (_ bv8 32))))) is different from false [2020-11-30 01:02:51,871 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:02:51,871 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1521983369] [2020-11-30 01:02:51,872 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:02:51,872 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 9 [2020-11-30 01:02:51,872 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [66989667] [2020-11-30 01:02:51,872 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-11-30 01:02:51,872 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-30 01:02:51,873 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-11-30 01:02:51,873 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=52, Unknown=2, NotChecked=14, Total=90 [2020-11-30 01:02:51,873 INFO L87 Difference]: Start difference. First operand 65 states and 65 transitions. Second operand 10 states. [2020-11-30 01:02:52,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:02:52,558 INFO L93 Difference]: Finished difference Result 63 states and 63 transitions. [2020-11-30 01:02:52,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-30 01:02:52,558 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 11 [2020-11-30 01:02:52,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:02:52,559 INFO L225 Difference]: With dead ends: 63 [2020-11-30 01:02:52,559 INFO L226 Difference]: Without dead ends: 63 [2020-11-30 01:02:52,560 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 11 SyntacticMatches, 3 SemanticMatches, 9 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 7.7s TimeCoverageRelationStatistics Valid=30, Invalid=62, Unknown=2, NotChecked=16, Total=110 [2020-11-30 01:02:52,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2020-11-30 01:02:52,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 63. [2020-11-30 01:02:52,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states. [2020-11-30 01:02:52,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 63 transitions. [2020-11-30 01:02:52,566 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 63 transitions. Word has length 11 [2020-11-30 01:02:52,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:02:52,567 INFO L481 AbstractCegarLoop]: Abstraction has 63 states and 63 transitions. [2020-11-30 01:02:52,567 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-11-30 01:02:52,567 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 63 transitions. [2020-11-30 01:02:52,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-11-30 01:02:52,567 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:02:52,567 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:02:52,768 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-11-30 01:02:52,768 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, alloc_dataErr4REQUIRES_VIOLATION, alloc_dataErr9REQUIRES_VIOLATION, alloc_dataErr3REQUIRES_VIOLATION, alloc_dataErr8REQUIRES_VIOLATION, alloc_dataErr2REQUIRES_VIOLATION, alloc_dataErr7REQUIRES_VIOLATION, alloc_dataErr1REQUIRES_VIOLATION, alloc_dataErr6REQUIRES_VIOLATION, alloc_dataErr11REQUIRES_VIOLATION, alloc_dataErr0REQUIRES_VIOLATION, alloc_dataErr5REQUIRES_VIOLATION, alloc_dataErr10REQUIRES_VIOLATION, free_dataErr7REQUIRES_VIOLATION, free_dataErr8ASSERT_VIOLATIONMEMORY_FREE, free_dataErr17REQUIRES_VIOLATION, free_dataErr6REQUIRES_VIOLATION, free_dataErr9ASSERT_VIOLATIONMEMORY_FREE, free_dataErr16REQUIRES_VIOLATION, free_dataErr5REQUIRES_VIOLATION, free_dataErr1REQUIRES_VIOLATION, free_dataErr0REQUIRES_VIOLATION, free_dataErr15REQUIRES_VIOLATION, free_dataErr4REQUIRES_VIOLATION, free_dataErr10ASSERT_VIOLATIONMEMORY_FREE, free_dataErr14REQUIRES_VIOLATION, free_dataErr3REQUIRES_VIOLATION, free_dataErr11ASSERT_VIOLATIONMEMORY_FREE, free_dataErr13ASSERT_VIOLATIONMEMORY_FREE, free_dataErr2REQUIRES_VIOLATION, free_dataErr12ASSERT_VIOLATIONMEMORY_FREE]=== [2020-11-30 01:02:52,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:02:52,769 INFO L82 PathProgramCache]: Analyzing trace with hash 1951303370, now seen corresponding path program 1 times [2020-11-30 01:02:52,770 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-30 01:02:52,770 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1481095912] [2020-11-30 01:02:52,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9a4761a2-e8aa-41d5-99dc-d5f9e1048f89/bin/uautomizer/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2020-11-30 01:02:52,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:02:52,964 INFO L263 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 7 conjunts are in the unsatisfiable core [2020-11-30 01:02:52,966 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 01:02:52,976 INFO L384 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 [2020-11-30 01:02:52,976 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-30 01:02:52,978 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-30 01:02:52,978 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-11-30 01:02:52,978 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2020-11-30 01:02:52,995 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2020-11-30 01:02:52,996 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-30 01:02:53,003 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-30 01:02:53,004 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-11-30 01:02:53,004 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:19, output treesize:11 [2020-11-30 01:02:53,055 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-11-30 01:02:53,055 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 23 treesize of output 61 [2020-11-30 01:02:53,056 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-30 01:02:53,090 INFO L625 ElimStorePlain]: treesize reduction 26, result has 46.9 percent of original size [2020-11-30 01:02:53,090 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-11-30 01:02:53,091 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:23, output treesize:23 [2020-11-30 01:02:53,155 INFO L350 Elim1Store]: treesize reduction 21, result has 25.0 percent of original size [2020-11-30 01:02:53,156 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 26 [2020-11-30 01:02:53,157 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-30 01:02:53,173 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-30 01:02:53,173 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-11-30 01:02:53,174 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:38, output treesize:37 [2020-11-30 01:02:53,218 INFO L350 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2020-11-30 01:02:53,225 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 42 treesize of output 18 [2020-11-30 01:02:53,228 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-30 01:02:53,256 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-30 01:02:53,257 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-30 01:02:53,257 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:42, output treesize:15 [2020-11-30 01:02:53,290 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:02:53,290 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-30 01:03:01,793 WARN L193 SmtUtils]: Spent 2.00 s on a formula simplification that was a NOOP. DAG size: 14 [2020-11-30 01:03:01,811 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:03:01,811 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1481095912] [2020-11-30 01:03:01,811 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:03:01,811 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 5] imperfect sequences [] total 9 [2020-11-30 01:03:01,811 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [495972009] [2020-11-30 01:03:01,812 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-11-30 01:03:01,812 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-30 01:03:01,812 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-11-30 01:03:01,812 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=63, Unknown=3, NotChecked=0, Total=90 [2020-11-30 01:03:01,813 INFO L87 Difference]: Start difference. First operand 63 states and 63 transitions. Second operand 10 states. [2020-11-30 01:03:02,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:03:02,421 INFO L93 Difference]: Finished difference Result 62 states and 62 transitions. [2020-11-30 01:03:02,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-11-30 01:03:02,421 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 13 [2020-11-30 01:03:02,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:03:02,422 INFO L225 Difference]: With dead ends: 62 [2020-11-30 01:03:02,422 INFO L226 Difference]: Without dead ends: 62 [2020-11-30 01:03:02,423 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 16 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 8.7s TimeCoverageRelationStatistics Valid=68, Invalid=139, Unknown=3, NotChecked=0, Total=210 [2020-11-30 01:03:02,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2020-11-30 01:03:02,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 62. [2020-11-30 01:03:02,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 62 states. [2020-11-30 01:03:02,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 62 transitions. [2020-11-30 01:03:02,430 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 62 transitions. Word has length 13 [2020-11-30 01:03:02,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:03:02,432 INFO L481 AbstractCegarLoop]: Abstraction has 62 states and 62 transitions. [2020-11-30 01:03:02,432 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-11-30 01:03:02,432 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 62 transitions. [2020-11-30 01:03:02,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-11-30 01:03:02,433 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:03:02,433 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:03:02,635 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2020-11-30 01:03:02,636 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, alloc_dataErr4REQUIRES_VIOLATION, alloc_dataErr9REQUIRES_VIOLATION, alloc_dataErr3REQUIRES_VIOLATION, alloc_dataErr8REQUIRES_VIOLATION, alloc_dataErr2REQUIRES_VIOLATION, alloc_dataErr7REQUIRES_VIOLATION, alloc_dataErr1REQUIRES_VIOLATION, alloc_dataErr6REQUIRES_VIOLATION, alloc_dataErr11REQUIRES_VIOLATION, alloc_dataErr0REQUIRES_VIOLATION, alloc_dataErr5REQUIRES_VIOLATION, alloc_dataErr10REQUIRES_VIOLATION, free_dataErr7REQUIRES_VIOLATION, free_dataErr8ASSERT_VIOLATIONMEMORY_FREE, free_dataErr17REQUIRES_VIOLATION, free_dataErr6REQUIRES_VIOLATION, free_dataErr9ASSERT_VIOLATIONMEMORY_FREE, free_dataErr16REQUIRES_VIOLATION, free_dataErr5REQUIRES_VIOLATION, free_dataErr1REQUIRES_VIOLATION, free_dataErr0REQUIRES_VIOLATION, free_dataErr15REQUIRES_VIOLATION, free_dataErr4REQUIRES_VIOLATION, free_dataErr10ASSERT_VIOLATIONMEMORY_FREE, free_dataErr14REQUIRES_VIOLATION, free_dataErr3REQUIRES_VIOLATION, free_dataErr11ASSERT_VIOLATIONMEMORY_FREE, free_dataErr13ASSERT_VIOLATIONMEMORY_FREE, free_dataErr2REQUIRES_VIOLATION, free_dataErr12ASSERT_VIOLATIONMEMORY_FREE]=== [2020-11-30 01:03:02,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:03:02,636 INFO L82 PathProgramCache]: Analyzing trace with hash 1951303371, now seen corresponding path program 1 times [2020-11-30 01:03:02,637 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-30 01:03:02,639 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1534320741] [2020-11-30 01:03:02,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9a4761a2-e8aa-41d5-99dc-d5f9e1048f89/bin/uautomizer/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2020-11-30 01:03:02,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:03:02,811 INFO L263 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 12 conjunts are in the unsatisfiable core [2020-11-30 01:03:02,812 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 01:03:02,818 INFO L384 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 [2020-11-30 01:03:02,819 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-30 01:03:02,827 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-30 01:03:02,829 INFO L384 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 [2020-11-30 01:03:02,830 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-11-30 01:03:02,836 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-30 01:03:02,836 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-11-30 01:03:02,836 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2020-11-30 01:03:02,863 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2020-11-30 01:03:02,863 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-30 01:03:02,875 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-30 01:03:02,879 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2020-11-30 01:03:02,879 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-11-30 01:03:02,889 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-30 01:03:02,889 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-11-30 01:03:02,890 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:35, output treesize:28 [2020-11-30 01:03:02,925 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-11-30 01:03:02,926 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 21 [2020-11-30 01:03:02,927 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-30 01:03:02,944 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-30 01:03:02,956 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-30 01:03:02,968 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2020-11-30 01:03:02,968 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-11-30 01:03:02,978 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-30 01:03:02,979 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-11-30 01:03:02,979 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:39, output treesize:30 [2020-11-30 01:03:03,016 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-30 01:03:03,017 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2020-11-30 01:03:03,018 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-30 01:03:03,041 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-30 01:03:03,046 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-30 01:03:03,047 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 26 [2020-11-30 01:03:03,047 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-11-30 01:03:03,065 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-30 01:03:03,069 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-11-30 01:03:03,070 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:56, output treesize:42 [2020-11-30 01:03:03,101 INFO L441 ElimStorePlain]: Different costs {0=[|#memory_$Pointer$.offset|], 2=[|#memory_$Pointer$.base|]} [2020-11-30 01:03:03,115 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2020-11-30 01:03:03,116 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-30 01:03:03,130 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-30 01:03:03,134 INFO L350 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2020-11-30 01:03:03,134 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 42 treesize of output 18 [2020-11-30 01:03:03,152 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-30 01:03:03,162 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-30 01:03:03,163 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-30 01:03:03,163 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:56, output treesize:18 [2020-11-30 01:03:03,188 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:03:03,188 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-30 01:03:03,330 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-30 01:03:05,798 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification that was a NOOP. DAG size: 26 [2020-11-30 01:03:09,149 WARN L193 SmtUtils]: Spent 2.06 s on a formula simplification that was a NOOP. DAG size: 24 [2020-11-30 01:03:09,157 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:03:09,157 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1534320741] [2020-11-30 01:03:09,158 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:03:09,158 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 5] imperfect sequences [] total 10 [2020-11-30 01:03:09,158 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [956841809] [2020-11-30 01:03:09,158 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-11-30 01:03:09,158 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-30 01:03:09,159 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-11-30 01:03:09,159 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=82, Unknown=1, NotChecked=0, Total=110 [2020-11-30 01:03:09,159 INFO L87 Difference]: Start difference. First operand 62 states and 62 transitions. Second operand 11 states. [2020-11-30 01:03:10,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:03:10,098 INFO L93 Difference]: Finished difference Result 61 states and 61 transitions. [2020-11-30 01:03:10,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-11-30 01:03:10,099 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 13 [2020-11-30 01:03:10,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:03:10,099 INFO L225 Difference]: With dead ends: 61 [2020-11-30 01:03:10,099 INFO L226 Difference]: Without dead ends: 61 [2020-11-30 01:03:10,100 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 6.2s TimeCoverageRelationStatistics Valid=75, Invalid=164, Unknown=1, NotChecked=0, Total=240 [2020-11-30 01:03:10,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2020-11-30 01:03:10,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 61. [2020-11-30 01:03:10,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2020-11-30 01:03:10,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 61 transitions. [2020-11-30 01:03:10,105 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 61 transitions. Word has length 13 [2020-11-30 01:03:10,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:03:10,105 INFO L481 AbstractCegarLoop]: Abstraction has 61 states and 61 transitions. [2020-11-30 01:03:10,105 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-11-30 01:03:10,105 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 61 transitions. [2020-11-30 01:03:10,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-11-30 01:03:10,106 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:03:10,106 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:03:10,306 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2020-11-30 01:03:10,306 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, alloc_dataErr4REQUIRES_VIOLATION, alloc_dataErr9REQUIRES_VIOLATION, alloc_dataErr3REQUIRES_VIOLATION, alloc_dataErr8REQUIRES_VIOLATION, alloc_dataErr2REQUIRES_VIOLATION, alloc_dataErr7REQUIRES_VIOLATION, alloc_dataErr1REQUIRES_VIOLATION, alloc_dataErr6REQUIRES_VIOLATION, alloc_dataErr11REQUIRES_VIOLATION, alloc_dataErr0REQUIRES_VIOLATION, alloc_dataErr5REQUIRES_VIOLATION, alloc_dataErr10REQUIRES_VIOLATION, free_dataErr7REQUIRES_VIOLATION, free_dataErr8ASSERT_VIOLATIONMEMORY_FREE, free_dataErr17REQUIRES_VIOLATION, free_dataErr6REQUIRES_VIOLATION, free_dataErr9ASSERT_VIOLATIONMEMORY_FREE, free_dataErr16REQUIRES_VIOLATION, free_dataErr5REQUIRES_VIOLATION, free_dataErr1REQUIRES_VIOLATION, free_dataErr0REQUIRES_VIOLATION, free_dataErr15REQUIRES_VIOLATION, free_dataErr4REQUIRES_VIOLATION, free_dataErr10ASSERT_VIOLATIONMEMORY_FREE, free_dataErr14REQUIRES_VIOLATION, free_dataErr3REQUIRES_VIOLATION, free_dataErr11ASSERT_VIOLATIONMEMORY_FREE, free_dataErr13ASSERT_VIOLATIONMEMORY_FREE, free_dataErr2REQUIRES_VIOLATION, free_dataErr12ASSERT_VIOLATIONMEMORY_FREE]=== [2020-11-30 01:03:10,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:03:10,307 INFO L82 PathProgramCache]: Analyzing trace with hash -1103626858, now seen corresponding path program 1 times [2020-11-30 01:03:10,307 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-30 01:03:10,308 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [47610825] [2020-11-30 01:03:10,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9a4761a2-e8aa-41d5-99dc-d5f9e1048f89/bin/uautomizer/mathsat Starting monitored process 7 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with mathsat -unsat_core_generation=3 [2020-11-30 01:03:10,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:03:10,511 INFO L263 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 13 conjunts are in the unsatisfiable core [2020-11-30 01:03:10,513 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 01:03:10,518 INFO L384 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 [2020-11-30 01:03:10,518 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-30 01:03:10,522 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-30 01:03:10,522 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-11-30 01:03:10,522 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2020-11-30 01:03:10,553 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-11-30 01:03:10,553 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 15 [2020-11-30 01:03:10,554 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-30 01:03:10,560 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-30 01:03:10,560 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-11-30 01:03:10,560 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:11, output treesize:4 [2020-11-30 01:03:10,575 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2020-11-30 01:03:10,576 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-30 01:03:10,581 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-30 01:03:10,582 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-11-30 01:03:10,582 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:16, output treesize:8 [2020-11-30 01:03:10,593 INFO L384 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 [2020-11-30 01:03:10,594 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-30 01:03:10,607 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-30 01:03:10,607 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-11-30 01:03:10,607 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:15, output treesize:14 [2020-11-30 01:03:10,673 INFO L350 Elim1Store]: treesize reduction 21, result has 25.0 percent of original size [2020-11-30 01:03:10,673 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 21 [2020-11-30 01:03:10,673 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-30 01:03:10,697 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-30 01:03:10,698 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-11-30 01:03:10,698 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:29, output treesize:22 [2020-11-30 01:04:30,022 WARN L193 SmtUtils]: Spent 1.32 m on a formula simplification. DAG size of input: 108 DAG size of output: 71 [2020-11-30 01:04:30,023 INFO L350 Elim1Store]: treesize reduction 367, result has 44.3 percent of original size [2020-11-30 01:04:30,024 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 92 treesize of output 319 [2020-11-30 01:04:30,027 INFO L603 QuantifierPusher]: Distributing 5 conjuncts over 2 disjuncts [2020-11-30 01:04:30,033 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[10, 5, 2, 1] term [2020-11-30 01:04:30,033 INFO L603 QuantifierPusher]: Distributing 5 conjuncts over 9 disjuncts [2020-11-30 01:04:30,037 INFO L603 QuantifierPusher]: Distributing 5 conjuncts over 2 disjuncts [2020-11-30 01:04:30,040 INFO L603 QuantifierPusher]: Distributing 5 conjuncts over 2 disjuncts [2020-11-30 01:04:30,046 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-30 01:04:30,158 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 17 [2020-11-30 01:04:30,159 INFO L625 ElimStorePlain]: treesize reduction 263, result has 8.0 percent of original size [2020-11-30 01:04:30,159 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-11-30 01:04:30,159 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:92, output treesize:20 [2020-11-30 01:04:30,170 INFO L350 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2020-11-30 01:04:30,170 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 29 treesize of output 13 [2020-11-30 01:04:30,172 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-30 01:04:30,174 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-30 01:04:30,174 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-11-30 01:04:30,175 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:29, output treesize:5 [2020-11-30 01:04:30,188 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:04:30,188 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-30 01:04:30,224 INFO L545 ElimStorePlain]: Start of recursive call 2: 4 dim-0 vars, End of recursive call: 4 dim-0 vars, and 1 xjuncts. [2020-11-30 01:04:30,300 INFO L625 ElimStorePlain]: treesize reduction 83, result has 29.1 percent of original size [2020-11-30 01:04:30,301 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 5 dim-0 vars, and 1 xjuncts. [2020-11-30 01:04:30,302 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:61, output treesize:34 [2020-11-30 01:04:40,021 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 217 treesize of output 148 [2020-11-30 01:04:40,028 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-30 01:04:40,047 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-30 01:04:40,048 INFO L545 ElimStorePlain]: Start of recursive call 1: 6 dim-0 vars, 1 dim-1 vars, End of recursive call: 6 dim-0 vars, and 1 xjuncts. [2020-11-30 01:04:40,048 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 7 variables, input treesize:77, output treesize:70 [2020-11-30 01:04:49,380 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [47610825] [2020-11-30 01:04:49,380 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: incompatible size [2020-11-30 01:04:49,380 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2063656065] [2020-11-30 01:04:49,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9a4761a2-e8aa-41d5-99dc-d5f9e1048f89/bin/uautomizer/cvc4 Starting monitored process 8 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2020-11-30 01:04:49,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:04:49,826 INFO L263 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 15 conjunts are in the unsatisfiable core [2020-11-30 01:04:49,828 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 01:04:49,829 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: ManagedScript already locked by de.uni_freiburg.informatik.ultimate.lib.smtlibutils.IncrementalPlicationChecker@770d58be [2020-11-30 01:04:49,830 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [459428752] [2020-11-30 01:04:49,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9a4761a2-e8aa-41d5-99dc-d5f9e1048f89/bin/uautomizer/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 01:04:49,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:04:50,000 INFO L263 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 13 conjunts are in the unsatisfiable core [2020-11-30 01:04:50,002 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 01:04:50,003 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: ManagedScript already locked by de.uni_freiburg.informatik.ultimate.lib.smtlibutils.IncrementalPlicationChecker@770d58be [2020-11-30 01:04:50,003 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:04:50,003 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [] total 0 [2020-11-30 01:04:50,003 ERROR L205 FreeRefinementEngine]: Strategy WOLF failed to provide any proof altough trace is infeasible [2020-11-30 01:04:50,003 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-30 01:04:50,608 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,7 mathsat -unsat_core_generation=3,8 cvc4 --incremental --print-success --lang smt --rewrite-divk [2020-11-30 01:04:50,617 WARN L238 ceAbstractionStarter]: Unable to decide correctness. Please check the following counterexample manually. [2020-11-30 01:04:50,617 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.11 01:04:50 BoogieIcfgContainer [2020-11-30 01:04:50,617 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-30 01:04:50,618 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 01:04:50,618 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 01:04:50,618 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 01:04:50,619 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:02:37" (3/4) ... [2020-11-30 01:04:50,622 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-30 01:04:50,622 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 01:04:50,624 INFO L168 Benchmark]: Toolchain (without parser) took 134472.02 ms. Allocated memory was 67.1 MB in the beginning and 104.9 MB in the end (delta: 37.7 MB). Free memory was 45.6 MB in the beginning and 46.9 MB in the end (delta: -1.3 MB). Peak memory consumption was 36.4 MB. Max. memory is 16.1 GB. [2020-11-30 01:04:50,624 INFO L168 Benchmark]: CDTParser took 0.36 ms. Allocated memory is still 67.1 MB. Free memory was 48.1 MB in the beginning and 48.1 MB in the end (delta: 31.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 01:04:50,624 INFO L168 Benchmark]: CACSL2BoogieTranslator took 610.76 ms. Allocated memory is still 67.1 MB. Free memory was 45.4 MB in the beginning and 33.7 MB in the end (delta: 11.7 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-11-30 01:04:50,625 INFO L168 Benchmark]: Boogie Preprocessor took 86.61 ms. Allocated memory is still 67.1 MB. Free memory was 33.7 MB in the beginning and 48.6 MB in the end (delta: -14.9 MB). Peak memory consumption was 7.1 MB. Max. memory is 16.1 GB. [2020-11-30 01:04:50,625 INFO L168 Benchmark]: RCFGBuilder took 952.93 ms. Allocated memory was 67.1 MB in the beginning and 86.0 MB in the end (delta: 18.9 MB). Free memory was 48.6 MB in the beginning and 60.8 MB in the end (delta: -12.1 MB). Peak memory consumption was 29.5 MB. Max. memory is 16.1 GB. [2020-11-30 01:04:50,626 INFO L168 Benchmark]: TraceAbstraction took 132812.04 ms. Allocated memory was 86.0 MB in the beginning and 104.9 MB in the end (delta: 18.9 MB). Free memory was 60.2 MB in the beginning and 48.0 MB in the end (delta: 12.3 MB). Peak memory consumption was 31.6 MB. Max. memory is 16.1 GB. [2020-11-30 01:04:50,626 INFO L168 Benchmark]: Witness Printer took 4.31 ms. Allocated memory is still 104.9 MB. Free memory was 48.0 MB in the beginning and 46.9 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 01:04:50,628 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36 ms. Allocated memory is still 67.1 MB. Free memory was 48.1 MB in the beginning and 48.1 MB in the end (delta: 31.8 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 610.76 ms. Allocated memory is still 67.1 MB. Free memory was 45.4 MB in the beginning and 33.7 MB in the end (delta: 11.7 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 86.61 ms. Allocated memory is still 67.1 MB. Free memory was 33.7 MB in the beginning and 48.6 MB in the end (delta: -14.9 MB). Peak memory consumption was 7.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 952.93 ms. Allocated memory was 67.1 MB in the beginning and 86.0 MB in the end (delta: 18.9 MB). Free memory was 48.6 MB in the beginning and 60.8 MB in the end (delta: -12.1 MB). Peak memory consumption was 29.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 132812.04 ms. Allocated memory was 86.0 MB in the beginning and 104.9 MB in the end (delta: 18.9 MB). Free memory was 60.2 MB in the beginning and 48.0 MB in the end (delta: 12.3 MB). Peak memory consumption was 31.6 MB. Max. memory is 16.1 GB. * Witness Printer took 4.31 ms. Allocated memory is still 104.9 MB. Free memory was 48.0 MB in the beginning and 46.9 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 532]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: unable to decide satisfiability of path constraint. Possible FailurePath: [L546] TData data; [L547] CALL alloc_data(&data) [L529] pdata->lo = (int *)malloc(sizeof(int)) [L530] pdata->hi = (int *)malloc(sizeof(int)) [L531] EXPR pdata->lo [L531] *(pdata->lo) = 4 [L532] EXPR pdata->hi [L532] *(pdata->hi) = 8 - StatisticsResult: Ultimate Automizer benchmark data CFG has 12 procedures, 100 locations, 32 error locations. Started 1 CEGAR loops. VerificationResult: UNKNOWN, OverallTime: 132.7s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 3.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 260 SDtfs, 177 SDslu, 761 SDs, 0 SdLazy, 766 SolverSat, 40 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 121 GetRequests, 66 SyntacticMatches, 7 SemanticMatches, 48 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 25.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=74occurred in iteration=0, 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, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 26.8s InterpolantComputationTime, 55 NumberOfCodeBlocks, 55 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 100 ConstructedInterpolants, 15 QuantifiedInterpolants, 9568 SizeOfPredicates, 40 NumberOfNonLiveVariables, 450 ConjunctsInSsa, 57 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 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 Received shutdown request...