./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/array-memsafety-realloc/array-realloc-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 9a8b2e8d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/array-memsafety-realloc/array-realloc-1.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 ef75293aeb91e37969e4557310245e0c38a479cd ............................................................................................................................. Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/array-memsafety-realloc/array-realloc-1.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 ef75293aeb91e37969e4557310245e0c38a479cd .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(valid-free) --- Real Ultimate output --- This is Ultimate 0.1.25-9a8b2e8 [2020-10-20 05:52:03,873 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-20 05:52:03,877 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-20 05:52:03,917 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-20 05:52:03,917 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-20 05:52:03,926 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-20 05:52:03,928 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-20 05:52:03,932 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-20 05:52:03,935 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-20 05:52:03,938 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-20 05:52:03,939 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-20 05:52:03,940 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-20 05:52:03,941 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-20 05:52:03,944 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-20 05:52:03,945 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-20 05:52:03,948 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-20 05:52:03,949 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-20 05:52:03,950 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-20 05:52:03,953 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-20 05:52:03,960 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-20 05:52:03,962 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-20 05:52:03,964 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-20 05:52:03,967 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-20 05:52:03,968 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-20 05:52:03,978 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-20 05:52:03,978 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-20 05:52:03,979 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-20 05:52:03,981 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-20 05:52:03,983 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-20 05:52:03,984 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-20 05:52:03,984 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-20 05:52:03,986 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-20 05:52:03,987 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-20 05:52:03,988 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-20 05:52:03,997 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-20 05:52:03,998 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-20 05:52:03,999 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-20 05:52:03,999 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-20 05:52:03,999 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-20 05:52:04,000 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-20 05:52:04,002 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-20 05:52:04,002 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2020-10-20 05:52:04,040 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-20 05:52:04,040 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-20 05:52:04,042 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-20 05:52:04,043 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-20 05:52:04,043 INFO L138 SettingsManager]: * Use SBE=true [2020-10-20 05:52:04,043 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-20 05:52:04,044 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-20 05:52:04,044 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-10-20 05:52:04,044 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-20 05:52:04,044 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-20 05:52:04,045 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-20 05:52:04,046 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-10-20 05:52:04,046 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-10-20 05:52:04,046 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2020-10-20 05:52:04,047 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-20 05:52:04,047 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-10-20 05:52:04,047 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-20 05:52:04,047 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-20 05:52:04,048 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-20 05:52:04,048 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-20 05:52:04,048 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-20 05:52:04,049 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-20 05:52:04,049 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-20 05:52:04,049 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-20 05:52:04,049 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-20 05:52:04,049 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-20 05:52:04,050 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-20 05:52:04,050 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-20 05:52:04,050 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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 -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux 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 -> ef75293aeb91e37969e4557310245e0c38a479cd [2020-10-20 05:52:04,283 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-20 05:52:04,301 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-20 05:52:04,312 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-20 05:52:04,315 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-20 05:52:04,315 INFO L275 PluginConnector]: CDTParser initialized [2020-10-20 05:52:04,316 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-memsafety-realloc/array-realloc-1.i [2020-10-20 05:52:04,394 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/397de0675/1aa3b39f9b6943519f06cd76567fb9b8/FLAG8689d62e8 [2020-10-20 05:52:05,035 INFO L306 CDTParser]: Found 1 translation units. [2020-10-20 05:52:05,036 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-memsafety-realloc/array-realloc-1.i [2020-10-20 05:52:05,052 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/397de0675/1aa3b39f9b6943519f06cd76567fb9b8/FLAG8689d62e8 [2020-10-20 05:52:05,196 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/397de0675/1aa3b39f9b6943519f06cd76567fb9b8 [2020-10-20 05:52:05,200 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-20 05:52:05,207 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-20 05:52:05,208 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-20 05:52:05,208 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-20 05:52:05,212 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-20 05:52:05,213 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 05:52:05" (1/1) ... [2020-10-20 05:52:05,216 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1d207cbd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:52:05, skipping insertion in model container [2020-10-20 05:52:05,216 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 05:52:05" (1/1) ... [2020-10-20 05:52:05,224 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-20 05:52:05,260 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-20 05:52:05,650 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 05:52:05,666 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) [2020-10-20 05:52:05,667 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@41796010 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:52:05, skipping insertion in model container [2020-10-20 05:52:05,667 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-20 05:52:05,668 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.preprocessor [2020-10-20 05:52:05,671 INFO L168 Benchmark]: Toolchain (without parser) took 467.93 ms. Allocated memory was 42.5 MB in the beginning and 43.5 MB in the end (delta: 1.0 MB). Free memory was 21.0 MB in the beginning and 18.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 10.9 MB. Max. memory is 14.3 GB. [2020-10-20 05:52:05,672 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 33.6 MB. Free memory was 10.8 MB in the beginning and 10.8 MB in the end (delta: 45.8 kB). Peak memory consumption was 45.8 kB. Max. memory is 14.3 GB. [2020-10-20 05:52:05,673 INFO L168 Benchmark]: CACSL2BoogieTranslator took 459.44 ms. Allocated memory was 42.5 MB in the beginning and 43.5 MB in the end (delta: 1.0 MB). Free memory was 20.2 MB in the beginning and 19.0 MB in the end (delta: 1.1 MB). Peak memory consumption was 10.1 MB. Max. memory is 14.3 GB. [2020-10-20 05:52:05,676 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 33.6 MB. Free memory was 10.8 MB in the beginning and 10.8 MB in the end (delta: 45.8 kB). Peak memory consumption was 45.8 kB. Max. memory is 14.3 GB. * CACSL2BoogieTranslator took 459.44 ms. Allocated memory was 42.5 MB in the beginning and 43.5 MB in the end (delta: 1.0 MB). Free memory was 20.2 MB in the beginning and 19.0 MB in the end (delta: 1.1 MB). Peak memory consumption was 10.1 MB. Max. memory is 14.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 515]: 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 0.1.25-9a8b2e8 [2020-10-20 05:52:07,600 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-20 05:52:07,602 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-20 05:52:07,641 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-20 05:52:07,641 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-20 05:52:07,650 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-20 05:52:07,652 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-20 05:52:07,662 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-20 05:52:07,665 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-20 05:52:07,667 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-20 05:52:07,668 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-20 05:52:07,669 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-20 05:52:07,671 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-20 05:52:07,673 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-20 05:52:07,675 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-20 05:52:07,677 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-20 05:52:07,679 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-20 05:52:07,682 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-20 05:52:07,685 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-20 05:52:07,688 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-20 05:52:07,691 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-20 05:52:07,693 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-20 05:52:07,695 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-20 05:52:07,696 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-20 05:52:07,706 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-20 05:52:07,708 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-20 05:52:07,708 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-20 05:52:07,709 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-20 05:52:07,711 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-20 05:52:07,712 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-20 05:52:07,712 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-20 05:52:07,713 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-20 05:52:07,716 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-20 05:52:07,716 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-20 05:52:07,717 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-20 05:52:07,717 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-20 05:52:07,718 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-20 05:52:07,718 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-20 05:52:07,721 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-20 05:52:07,722 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-20 05:52:07,723 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-20 05:52:07,727 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2020-10-20 05:52:07,749 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-20 05:52:07,750 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-20 05:52:07,751 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-20 05:52:07,751 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-20 05:52:07,751 INFO L138 SettingsManager]: * Use SBE=true [2020-10-20 05:52:07,752 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-20 05:52:07,752 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-20 05:52:07,752 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-10-20 05:52:07,752 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-20 05:52:07,753 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-20 05:52:07,753 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-20 05:52:07,753 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-10-20 05:52:07,753 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-10-20 05:52:07,754 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2020-10-20 05:52:07,754 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-20 05:52:07,754 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-10-20 05:52:07,754 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-10-20 05:52:07,755 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-10-20 05:52:07,755 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-20 05:52:07,755 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-20 05:52:07,755 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-20 05:52:07,756 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-20 05:52:07,756 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-20 05:52:07,756 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-20 05:52:07,756 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-20 05:52:07,757 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-20 05:52:07,757 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-20 05:52:07,757 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-10-20 05:52:07,757 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-10-20 05:52:07,758 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-20 05:52:07,758 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-20 05:52:07,758 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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 -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux 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 -> ef75293aeb91e37969e4557310245e0c38a479cd [2020-10-20 05:52:07,982 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-20 05:52:07,995 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-20 05:52:07,998 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-20 05:52:08,000 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-20 05:52:08,000 INFO L275 PluginConnector]: CDTParser initialized [2020-10-20 05:52:08,001 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-memsafety-realloc/array-realloc-1.i [2020-10-20 05:52:08,062 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c7328554b/d0100a0d61f04eb2bbd55b6a80505e33/FLAG7ba346617 [2020-10-20 05:52:08,632 INFO L306 CDTParser]: Found 1 translation units. [2020-10-20 05:52:08,633 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-memsafety-realloc/array-realloc-1.i [2020-10-20 05:52:08,646 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c7328554b/d0100a0d61f04eb2bbd55b6a80505e33/FLAG7ba346617 [2020-10-20 05:52:08,885 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c7328554b/d0100a0d61f04eb2bbd55b6a80505e33 [2020-10-20 05:52:08,888 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-20 05:52:08,895 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-20 05:52:08,897 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-20 05:52:08,897 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-20 05:52:08,900 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-20 05:52:08,901 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 05:52:08" (1/1) ... [2020-10-20 05:52:08,904 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3530a230 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:52:08, skipping insertion in model container [2020-10-20 05:52:08,905 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 05:52:08" (1/1) ... [2020-10-20 05:52:08,912 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-20 05:52:08,962 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-20 05:52:09,392 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 05:52:09,408 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2020-10-20 05:52:09,425 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-20 05:52:09,452 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 05:52:09,459 INFO L203 MainTranslator]: Completed pre-run [2020-10-20 05:52:09,531 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 05:52:09,606 INFO L208 MainTranslator]: Completed translation [2020-10-20 05:52:09,608 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:52:09 WrapperNode [2020-10-20 05:52:09,609 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-20 05:52:09,610 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-20 05:52:09,610 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-20 05:52:09,610 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-20 05:52:09,624 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:52:09" (1/1) ... [2020-10-20 05:52:09,624 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:52:09" (1/1) ... [2020-10-20 05:52:09,668 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:52:09" (1/1) ... [2020-10-20 05:52:09,669 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:52:09" (1/1) ... [2020-10-20 05:52:09,704 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:52:09" (1/1) ... [2020-10-20 05:52:09,712 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:52:09" (1/1) ... [2020-10-20 05:52:09,720 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:52:09" (1/1) ... [2020-10-20 05:52:09,731 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-20 05:52:09,731 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-20 05:52:09,732 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-20 05:52:09,732 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-20 05:52:09,733 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:52:09" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2020-10-20 05:52:09,811 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-20 05:52:09,811 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-20 05:52:09,812 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.setCurrentRoundingMode [2020-10-20 05:52:09,813 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2020-10-20 05:52:09,813 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2020-10-20 05:52:09,813 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2020-10-20 05:52:09,813 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2020-10-20 05:52:09,814 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2020-10-20 05:52:09,814 INFO L138 BoogieDeclarations]: Found implementation of procedure expandArray [2020-10-20 05:52:09,814 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-20 05:52:09,814 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_realloc [2020-10-20 05:52:09,815 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-10-20 05:52:09,815 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-10-20 05:52:09,815 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-10-20 05:52:09,815 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-10-20 05:52:09,815 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-10-20 05:52:09,815 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-10-20 05:52:09,816 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-10-20 05:52:09,816 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-10-20 05:52:09,816 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-10-20 05:52:09,816 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-10-20 05:52:09,816 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-10-20 05:52:09,817 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-10-20 05:52:09,817 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-10-20 05:52:09,817 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-10-20 05:52:09,817 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-10-20 05:52:09,817 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-10-20 05:52:09,818 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2020-10-20 05:52:09,818 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2020-10-20 05:52:09,818 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2020-10-20 05:52:09,818 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2020-10-20 05:52:09,818 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2020-10-20 05:52:09,818 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-10-20 05:52:09,818 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-10-20 05:52:09,819 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-10-20 05:52:09,819 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-10-20 05:52:09,819 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-10-20 05:52:09,819 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-10-20 05:52:09,819 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-10-20 05:52:09,820 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-10-20 05:52:09,820 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-10-20 05:52:09,820 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-10-20 05:52:09,820 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-10-20 05:52:09,820 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-10-20 05:52:09,821 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-10-20 05:52:09,821 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-10-20 05:52:09,821 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-10-20 05:52:09,821 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-10-20 05:52:09,822 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-10-20 05:52:09,822 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-10-20 05:52:09,822 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-10-20 05:52:09,822 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-10-20 05:52:09,822 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-10-20 05:52:09,823 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-10-20 05:52:09,823 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-10-20 05:52:09,823 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-10-20 05:52:09,823 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-10-20 05:52:09,823 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-10-20 05:52:09,823 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-10-20 05:52:09,823 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-10-20 05:52:09,823 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-10-20 05:52:09,823 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-10-20 05:52:09,824 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-10-20 05:52:09,824 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-10-20 05:52:09,825 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-10-20 05:52:09,825 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-10-20 05:52:09,825 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-20 05:52:09,825 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-10-20 05:52:09,826 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-10-20 05:52:09,826 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-20 05:52:09,827 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-10-20 05:52:09,828 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-10-20 05:52:09,828 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-10-20 05:52:09,828 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2020-10-20 05:52:09,828 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-20 05:52:09,828 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-10-20 05:52:09,828 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2020-10-20 05:52:09,828 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-10-20 05:52:09,828 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-20 05:52:09,829 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2020-10-20 05:52:09,829 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-10-20 05:52:09,829 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-10-20 05:52:09,829 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-10-20 05:52:09,829 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-10-20 05:52:09,829 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-10-20 05:52:09,829 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-10-20 05:52:09,829 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-10-20 05:52:09,829 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-10-20 05:52:09,830 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-10-20 05:52:09,830 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-10-20 05:52:09,830 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-10-20 05:52:09,830 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-10-20 05:52:09,830 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-10-20 05:52:09,830 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-10-20 05:52:09,830 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-10-20 05:52:09,830 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-10-20 05:52:09,830 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-10-20 05:52:09,831 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-10-20 05:52:09,831 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-10-20 05:52:09,831 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-10-20 05:52:09,831 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-10-20 05:52:09,831 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-10-20 05:52:09,831 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-10-20 05:52:09,831 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-10-20 05:52:09,832 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-10-20 05:52:09,832 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-10-20 05:52:09,832 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-10-20 05:52:09,832 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-10-20 05:52:09,832 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-10-20 05:52:09,832 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-10-20 05:52:09,833 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-10-20 05:52:09,833 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-10-20 05:52:09,833 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-10-20 05:52:09,833 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-10-20 05:52:09,833 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-10-20 05:52:09,834 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-10-20 05:52:09,834 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-10-20 05:52:09,834 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-10-20 05:52:09,834 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-20 05:52:09,834 INFO L130 BoogieDeclarations]: Found specification of procedure expandArray [2020-10-20 05:52:09,834 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_realloc [2020-10-20 05:52:09,835 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-10-20 05:52:09,835 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-20 05:52:09,836 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-20 05:52:09,836 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-20 05:52:09,836 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-20 05:52:09,836 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-20 05:52:09,837 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.setCurrentRoundingMode [2020-10-20 05:52:09,837 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-10-20 05:52:10,397 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-20 05:52:10,397 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-20 05:52:10,399 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 05:52:10 BoogieIcfgContainer [2020-10-20 05:52:10,399 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-20 05:52:10,401 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-20 05:52:10,401 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-20 05:52:10,404 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-20 05:52:10,404 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.10 05:52:08" (1/3) ... [2020-10-20 05:52:10,405 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13fc3662 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 05:52:10, skipping insertion in model container [2020-10-20 05:52:10,406 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:52:09" (2/3) ... [2020-10-20 05:52:10,406 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13fc3662 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 05:52:10, skipping insertion in model container [2020-10-20 05:52:10,406 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 05:52:10" (3/3) ... [2020-10-20 05:52:10,408 INFO L111 eAbstractionObserver]: Analyzing ICFG array-realloc-1.i [2020-10-20 05:52:10,420 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-20 05:52:10,427 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 9 error locations. [2020-10-20 05:52:10,440 INFO L253 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2020-10-20 05:52:10,467 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-20 05:52:10,467 INFO L378 AbstractCegarLoop]: Hoare is false [2020-10-20 05:52:10,467 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-20 05:52:10,467 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-20 05:52:10,468 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-20 05:52:10,468 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-20 05:52:10,468 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-20 05:52:10,468 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-20 05:52:10,480 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states. [2020-10-20 05:52:10,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-20 05:52:10,489 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 05:52:10,490 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 05:52:10,490 INFO L429 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONMEMORY_FREE, mainErr2ASSERT_VIOLATIONMEMORY_FREE, mainErr3ENSURES_VIOLATIONMEMORY_LEAK, mainErr1ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr4ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr3ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr2ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr1REQUIRES_VIOLATION, expandArrayErr0REQUIRES_VIOLATION]=== [2020-10-20 05:52:10,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 05:52:10,495 INFO L82 PathProgramCache]: Analyzing trace with hash 1774917903, now seen corresponding path program 1 times [2020-10-20 05:52:10,506 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-20 05:52:10,506 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [390894343] [2020-10-20 05:52:10,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2020-10-20 05:52:10,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 05:52:10,676 INFO L263 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-20 05:52:10,682 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 05:52:10,720 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 05:52:10,721 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-20 05:52:10,733 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 05:52:10,734 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [390894343] [2020-10-20 05:52:10,735 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-20 05:52:10,735 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-10-20 05:52:10,736 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1993265317] [2020-10-20 05:52:10,741 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-20 05:52:10,742 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-20 05:52:10,757 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-20 05:52:10,758 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 05:52:10,759 INFO L87 Difference]: Start difference. First operand 42 states. Second operand 3 states. [2020-10-20 05:52:10,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 05:52:10,876 INFO L93 Difference]: Finished difference Result 55 states and 62 transitions. [2020-10-20 05:52:10,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-20 05:52:10,878 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-10-20 05:52:10,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 05:52:10,890 INFO L225 Difference]: With dead ends: 55 [2020-10-20 05:52:10,890 INFO L226 Difference]: Without dead ends: 51 [2020-10-20 05:52:10,892 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 05:52:10,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2020-10-20 05:52:10,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 39. [2020-10-20 05:52:10,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2020-10-20 05:52:10,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 42 transitions. [2020-10-20 05:52:10,939 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 42 transitions. Word has length 8 [2020-10-20 05:52:10,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 05:52:10,940 INFO L481 AbstractCegarLoop]: Abstraction has 39 states and 42 transitions. [2020-10-20 05:52:10,940 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-20 05:52:10,941 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 42 transitions. [2020-10-20 05:52:10,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-20 05:52:10,941 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 05:52:10,942 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 05:52:11,156 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-10-20 05:52:11,156 INFO L429 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONMEMORY_FREE, mainErr2ASSERT_VIOLATIONMEMORY_FREE, mainErr3ENSURES_VIOLATIONMEMORY_LEAK, mainErr1ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr4ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr3ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr2ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr1REQUIRES_VIOLATION, expandArrayErr0REQUIRES_VIOLATION]=== [2020-10-20 05:52:11,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 05:52:11,157 INFO L82 PathProgramCache]: Analyzing trace with hash -812119182, now seen corresponding path program 1 times [2020-10-20 05:52:11,157 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-20 05:52:11,157 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1173578363] [2020-10-20 05:52:11,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2020-10-20 05:52:11,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 05:52:11,279 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 3 conjunts are in the unsatisfiable core [2020-10-20 05:52:11,281 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 05:52:11,301 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 05:52:11,301 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-20 05:52:11,309 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 05:52:11,309 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1173578363] [2020-10-20 05:52:11,310 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-20 05:52:11,310 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2020-10-20 05:52:11,310 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1642912730] [2020-10-20 05:52:11,312 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-20 05:52:11,312 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-20 05:52:11,313 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-20 05:52:11,313 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 05:52:11,313 INFO L87 Difference]: Start difference. First operand 39 states and 42 transitions. Second operand 3 states. [2020-10-20 05:52:11,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 05:52:11,327 INFO L93 Difference]: Finished difference Result 39 states and 41 transitions. [2020-10-20 05:52:11,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-20 05:52:11,328 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2020-10-20 05:52:11,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 05:52:11,329 INFO L225 Difference]: With dead ends: 39 [2020-10-20 05:52:11,329 INFO L226 Difference]: Without dead ends: 39 [2020-10-20 05:52:11,330 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 05:52:11,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2020-10-20 05:52:11,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2020-10-20 05:52:11,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2020-10-20 05:52:11,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 41 transitions. [2020-10-20 05:52:11,337 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 41 transitions. Word has length 9 [2020-10-20 05:52:11,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 05:52:11,338 INFO L481 AbstractCegarLoop]: Abstraction has 39 states and 41 transitions. [2020-10-20 05:52:11,338 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-20 05:52:11,338 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 41 transitions. [2020-10-20 05:52:11,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-20 05:52:11,339 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 05:52:11,339 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 05:52:11,552 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-10-20 05:52:11,553 INFO L429 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONMEMORY_FREE, mainErr2ASSERT_VIOLATIONMEMORY_FREE, mainErr3ENSURES_VIOLATIONMEMORY_LEAK, mainErr1ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr4ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr3ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr2ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr1REQUIRES_VIOLATION, expandArrayErr0REQUIRES_VIOLATION]=== [2020-10-20 05:52:11,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 05:52:11,554 INFO L82 PathProgramCache]: Analyzing trace with hash -386852574, now seen corresponding path program 1 times [2020-10-20 05:52:11,555 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-20 05:52:11,555 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [875415948] [2020-10-20 05:52:11,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2020-10-20 05:52:11,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 05:52:11,669 INFO L263 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 3 conjunts are in the unsatisfiable core [2020-10-20 05:52:11,671 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 05:52:11,698 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 05:52:11,700 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-20 05:52:11,728 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 05:52:11,731 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [875415948] [2020-10-20 05:52:11,732 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-20 05:52:11,732 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2020-10-20 05:52:11,732 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1903508359] [2020-10-20 05:52:11,732 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-20 05:52:11,733 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-20 05:52:11,733 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-20 05:52:11,734 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 05:52:11,734 INFO L87 Difference]: Start difference. First operand 39 states and 41 transitions. Second operand 3 states. [2020-10-20 05:52:11,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 05:52:11,792 INFO L93 Difference]: Finished difference Result 46 states and 50 transitions. [2020-10-20 05:52:11,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-20 05:52:11,794 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 13 [2020-10-20 05:52:11,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 05:52:11,796 INFO L225 Difference]: With dead ends: 46 [2020-10-20 05:52:11,796 INFO L226 Difference]: Without dead ends: 46 [2020-10-20 05:52:11,799 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 05:52:11,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2020-10-20 05:52:11,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 41. [2020-10-20 05:52:11,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2020-10-20 05:52:11,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 44 transitions. [2020-10-20 05:52:11,815 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 44 transitions. Word has length 13 [2020-10-20 05:52:11,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 05:52:11,816 INFO L481 AbstractCegarLoop]: Abstraction has 41 states and 44 transitions. [2020-10-20 05:52:11,817 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-20 05:52:11,817 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 44 transitions. [2020-10-20 05:52:11,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-20 05:52:11,819 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 05:52:11,820 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 05:52:12,020 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-10-20 05:52:12,021 INFO L429 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONMEMORY_FREE, mainErr2ASSERT_VIOLATIONMEMORY_FREE, mainErr3ENSURES_VIOLATIONMEMORY_LEAK, mainErr1ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr4ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr3ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr2ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr1REQUIRES_VIOLATION, expandArrayErr0REQUIRES_VIOLATION]=== [2020-10-20 05:52:12,021 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 05:52:12,021 INFO L82 PathProgramCache]: Analyzing trace with hash -171591004, now seen corresponding path program 1 times [2020-10-20 05:52:12,022 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-20 05:52:12,022 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1322908410] [2020-10-20 05:52:12,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2020-10-20 05:52:12,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 05:52:12,200 INFO L263 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 7 conjunts are in the unsatisfiable core [2020-10-20 05:52:12,202 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 05:52:12,260 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 05:52:12,260 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-20 05:52:12,286 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 05:52:12,286 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1322908410] [2020-10-20 05:52:12,286 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-20 05:52:12,286 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 6 [2020-10-20 05:52:12,287 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1633932646] [2020-10-20 05:52:12,287 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-20 05:52:12,287 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-20 05:52:12,288 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-20 05:52:12,288 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-20 05:52:12,288 INFO L87 Difference]: Start difference. First operand 41 states and 44 transitions. Second operand 6 states. [2020-10-20 05:52:12,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 05:52:12,353 INFO L93 Difference]: Finished difference Result 52 states and 56 transitions. [2020-10-20 05:52:12,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-20 05:52:12,353 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 17 [2020-10-20 05:52:12,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 05:52:12,355 INFO L225 Difference]: With dead ends: 52 [2020-10-20 05:52:12,355 INFO L226 Difference]: Without dead ends: 52 [2020-10-20 05:52:12,355 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-10-20 05:52:12,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2020-10-20 05:52:12,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 44. [2020-10-20 05:52:12,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2020-10-20 05:52:12,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 48 transitions. [2020-10-20 05:52:12,378 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 48 transitions. Word has length 17 [2020-10-20 05:52:12,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 05:52:12,378 INFO L481 AbstractCegarLoop]: Abstraction has 44 states and 48 transitions. [2020-10-20 05:52:12,378 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-20 05:52:12,379 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 48 transitions. [2020-10-20 05:52:12,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-20 05:52:12,380 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 05:52:12,380 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 05:52:12,587 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2020-10-20 05:52:12,588 INFO L429 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONMEMORY_FREE, mainErr2ASSERT_VIOLATIONMEMORY_FREE, mainErr3ENSURES_VIOLATIONMEMORY_LEAK, mainErr1ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr4ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr3ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr2ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr1REQUIRES_VIOLATION, expandArrayErr0REQUIRES_VIOLATION]=== [2020-10-20 05:52:12,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 05:52:12,589 INFO L82 PathProgramCache]: Analyzing trace with hash -170667483, now seen corresponding path program 1 times [2020-10-20 05:52:12,590 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-20 05:52:12,590 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [358766100] [2020-10-20 05:52:12,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2020-10-20 05:52:12,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 05:52:12,703 INFO L263 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-20 05:52:12,704 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 05:52:12,762 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-10-20 05:52:12,762 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 25 [2020-10-20 05:52:12,763 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-20 05:52:12,785 INFO L625 ElimStorePlain]: treesize reduction 10, result has 60.0 percent of original size [2020-10-20 05:52:12,787 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-10-20 05:52:12,788 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:9, output treesize:5 [2020-10-20 05:52:12,809 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 05:52:12,809 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-20 05:52:12,846 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 05:52:12,847 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [358766100] [2020-10-20 05:52:12,847 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-20 05:52:12,847 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2020-10-20 05:52:12,848 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [209537081] [2020-10-20 05:52:12,848 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-20 05:52:12,848 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-20 05:52:12,848 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-20 05:52:12,849 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-20 05:52:12,849 INFO L87 Difference]: Start difference. First operand 44 states and 48 transitions. Second operand 5 states. [2020-10-20 05:52:12,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 05:52:12,962 INFO L93 Difference]: Finished difference Result 45 states and 49 transitions. [2020-10-20 05:52:12,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-20 05:52:12,963 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2020-10-20 05:52:12,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 05:52:12,964 INFO L225 Difference]: With dead ends: 45 [2020-10-20 05:52:12,965 INFO L226 Difference]: Without dead ends: 45 [2020-10-20 05:52:12,965 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 29 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-20 05:52:12,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2020-10-20 05:52:12,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 42. [2020-10-20 05:52:12,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2020-10-20 05:52:12,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 46 transitions. [2020-10-20 05:52:12,972 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 46 transitions. Word has length 17 [2020-10-20 05:52:12,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 05:52:12,973 INFO L481 AbstractCegarLoop]: Abstraction has 42 states and 46 transitions. [2020-10-20 05:52:12,973 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-20 05:52:12,973 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 46 transitions. [2020-10-20 05:52:12,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-20 05:52:12,974 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 05:52:12,974 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 05:52:13,175 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2020-10-20 05:52:13,176 INFO L429 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONMEMORY_FREE, mainErr2ASSERT_VIOLATIONMEMORY_FREE, mainErr3ENSURES_VIOLATIONMEMORY_LEAK, mainErr1ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr4ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr3ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr2ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr1REQUIRES_VIOLATION, expandArrayErr0REQUIRES_VIOLATION]=== [2020-10-20 05:52:13,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 05:52:13,176 INFO L82 PathProgramCache]: Analyzing trace with hash -170667482, now seen corresponding path program 1 times [2020-10-20 05:52:13,177 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-20 05:52:13,178 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [553794349] [2020-10-20 05:52:13,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2020-10-20 05:52:13,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 05:52:13,290 INFO L263 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 12 conjunts are in the unsatisfiable core [2020-10-20 05:52:13,292 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 05:52:13,323 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 [2020-10-20 05:52:13,323 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-20 05:52:13,331 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-20 05:52:13,331 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-10-20 05:52:13,332 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:15, output treesize:14 [2020-10-20 05:52:13,402 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 05:52:13,402 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-20 05:52:13,879 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 05:52:13,879 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [553794349] [2020-10-20 05:52:13,879 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-20 05:52:13,880 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 11 [2020-10-20 05:52:13,880 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1586642231] [2020-10-20 05:52:13,880 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-20 05:52:13,881 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-20 05:52:13,881 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-20 05:52:13,881 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2020-10-20 05:52:13,881 INFO L87 Difference]: Start difference. First operand 42 states and 46 transitions. Second operand 12 states. [2020-10-20 05:52:14,442 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 24 DAG size of output: 23 [2020-10-20 05:52:15,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 05:52:15,456 INFO L93 Difference]: Finished difference Result 121 states and 129 transitions. [2020-10-20 05:52:15,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-20 05:52:15,457 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 17 [2020-10-20 05:52:15,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 05:52:15,460 INFO L225 Difference]: With dead ends: 121 [2020-10-20 05:52:15,460 INFO L226 Difference]: Without dead ends: 119 [2020-10-20 05:52:15,461 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 23 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=84, Invalid=258, Unknown=0, NotChecked=0, Total=342 [2020-10-20 05:52:15,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2020-10-20 05:52:15,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 63. [2020-10-20 05:52:15,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states. [2020-10-20 05:52:15,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 71 transitions. [2020-10-20 05:52:15,469 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 71 transitions. Word has length 17 [2020-10-20 05:52:15,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 05:52:15,469 INFO L481 AbstractCegarLoop]: Abstraction has 63 states and 71 transitions. [2020-10-20 05:52:15,469 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-20 05:52:15,470 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 71 transitions. [2020-10-20 05:52:15,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-20 05:52:15,470 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 05:52:15,470 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 05:52:15,675 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 mathsat -unsat_core_generation=3 [2020-10-20 05:52:15,676 INFO L429 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONMEMORY_FREE, mainErr2ASSERT_VIOLATIONMEMORY_FREE, mainErr3ENSURES_VIOLATIONMEMORY_LEAK, mainErr1ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr4ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr3ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr2ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr1REQUIRES_VIOLATION, expandArrayErr0REQUIRES_VIOLATION]=== [2020-10-20 05:52:15,677 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 05:52:15,678 INFO L82 PathProgramCache]: Analyzing trace with hash 2028589773, now seen corresponding path program 1 times [2020-10-20 05:52:15,678 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-20 05:52:15,679 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1697488198] [2020-10-20 05:52:15,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 8 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with mathsat -unsat_core_generation=3 [2020-10-20 05:52:15,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 05:52:15,773 INFO L263 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 3 conjunts are in the unsatisfiable core [2020-10-20 05:52:15,775 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 05:52:15,780 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 05:52:15,780 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-20 05:52:15,797 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 05:52:15,798 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1697488198] [2020-10-20 05:52:15,798 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-20 05:52:15,798 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-10-20 05:52:15,799 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1772943118] [2020-10-20 05:52:15,799 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-20 05:52:15,799 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-20 05:52:15,799 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-20 05:52:15,800 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 05:52:15,800 INFO L87 Difference]: Start difference. First operand 63 states and 71 transitions. Second operand 3 states. [2020-10-20 05:52:15,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 05:52:15,805 INFO L93 Difference]: Finished difference Result 62 states and 70 transitions. [2020-10-20 05:52:15,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-20 05:52:15,807 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2020-10-20 05:52:15,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 05:52:15,809 INFO L225 Difference]: With dead ends: 62 [2020-10-20 05:52:15,809 INFO L226 Difference]: Without dead ends: 62 [2020-10-20 05:52:15,810 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 05:52:15,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2020-10-20 05:52:15,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 62. [2020-10-20 05:52:15,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 62 states. [2020-10-20 05:52:15,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 70 transitions. [2020-10-20 05:52:15,828 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 70 transitions. Word has length 17 [2020-10-20 05:52:15,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 05:52:15,828 INFO L481 AbstractCegarLoop]: Abstraction has 62 states and 70 transitions. [2020-10-20 05:52:15,828 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-20 05:52:15,828 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 70 transitions. [2020-10-20 05:52:15,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-20 05:52:15,829 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 05:52:15,829 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 05:52:16,034 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 mathsat -unsat_core_generation=3 [2020-10-20 05:52:16,036 INFO L429 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONMEMORY_FREE, mainErr2ASSERT_VIOLATIONMEMORY_FREE, mainErr3ENSURES_VIOLATIONMEMORY_LEAK, mainErr1ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr4ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr3ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr2ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr1REQUIRES_VIOLATION, expandArrayErr0REQUIRES_VIOLATION]=== [2020-10-20 05:52:16,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 05:52:16,036 INFO L82 PathProgramCache]: Analyzing trace with hash -1538226398, now seen corresponding path program 1 times [2020-10-20 05:52:16,037 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-20 05:52:16,037 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2046962986] [2020-10-20 05:52:16,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 9 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with mathsat -unsat_core_generation=3 [2020-10-20 05:52:16,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 05:52:16,139 INFO L263 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 5 conjunts are in the unsatisfiable core [2020-10-20 05:52:16,141 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 05:52:16,172 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2046962986] [2020-10-20 05:52:16,173 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: no int: (_ BitVec 32) [2020-10-20 05:52:16,173 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [506431657] [2020-10-20 05:52:16,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 10 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2020-10-20 05:52:16,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 05:52:16,357 INFO L263 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 3 conjunts are in the unsatisfiable core [2020-10-20 05:52:16,359 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 05:52:16,406 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 05:52:16,406 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-20 05:52:16,421 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 05:52:16,421 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-20 05:52:16,421 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 2] imperfect sequences [] total 3 [2020-10-20 05:52:16,421 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1852787796] [2020-10-20 05:52:16,422 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-20 05:52:16,422 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-20 05:52:16,422 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-20 05:52:16,422 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-10-20 05:52:16,423 INFO L87 Difference]: Start difference. First operand 62 states and 70 transitions. Second operand 4 states. [2020-10-20 05:52:16,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 05:52:16,474 INFO L93 Difference]: Finished difference Result 61 states and 69 transitions. [2020-10-20 05:52:16,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-20 05:52:16,475 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 18 [2020-10-20 05:52:16,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 05:52:16,476 INFO L225 Difference]: With dead ends: 61 [2020-10-20 05:52:16,476 INFO L226 Difference]: Without dead ends: 61 [2020-10-20 05:52:16,476 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 38 SyntacticMatches, 2 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-10-20 05:52:16,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2020-10-20 05:52:16,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 61. [2020-10-20 05:52:16,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2020-10-20 05:52:16,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 69 transitions. [2020-10-20 05:52:16,491 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 69 transitions. Word has length 18 [2020-10-20 05:52:16,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 05:52:16,491 INFO L481 AbstractCegarLoop]: Abstraction has 61 states and 69 transitions. [2020-10-20 05:52:16,492 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-20 05:52:16,492 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 69 transitions. [2020-10-20 05:52:16,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-20 05:52:16,493 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 05:52:16,493 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 05:52:16,894 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 mathsat -unsat_core_generation=3,10 cvc4 --incremental --print-success --lang smt --rewrite-divk [2020-10-20 05:52:16,895 INFO L429 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONMEMORY_FREE, mainErr2ASSERT_VIOLATIONMEMORY_FREE, mainErr3ENSURES_VIOLATIONMEMORY_LEAK, mainErr1ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr4ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr3ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr2ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr1REQUIRES_VIOLATION, expandArrayErr0REQUIRES_VIOLATION]=== [2020-10-20 05:52:16,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 05:52:16,895 INFO L82 PathProgramCache]: Analyzing trace with hash -440378001, now seen corresponding path program 1 times [2020-10-20 05:52:16,896 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-20 05:52:16,897 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [634345821] [2020-10-20 05:52:16,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 11 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with mathsat -unsat_core_generation=3 [2020-10-20 05:52:16,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 05:52:16,994 INFO L263 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 5 conjunts are in the unsatisfiable core [2020-10-20 05:52:16,996 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 05:52:17,005 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 [2020-10-20 05:52:17,005 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-20 05:52:17,012 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-20 05:52:17,012 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-10-20 05:52:17,012 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2020-10-20 05:52:17,034 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 05:52:17,035 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-20 05:52:17,113 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 05:52:17,114 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [634345821] [2020-10-20 05:52:17,114 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-20 05:52:17,114 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2020-10-20 05:52:17,115 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [989425986] [2020-10-20 05:52:17,115 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-20 05:52:17,115 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-20 05:52:17,115 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-20 05:52:17,115 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-20 05:52:17,116 INFO L87 Difference]: Start difference. First operand 61 states and 69 transitions. Second operand 5 states. [2020-10-20 05:52:17,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 05:52:17,231 INFO L93 Difference]: Finished difference Result 74 states and 82 transitions. [2020-10-20 05:52:17,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-20 05:52:17,232 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 19 [2020-10-20 05:52:17,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 05:52:17,233 INFO L225 Difference]: With dead ends: 74 [2020-10-20 05:52:17,233 INFO L226 Difference]: Without dead ends: 74 [2020-10-20 05:52:17,234 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 32 SyntacticMatches, 2 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-20 05:52:17,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2020-10-20 05:52:17,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 68. [2020-10-20 05:52:17,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2020-10-20 05:52:17,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 76 transitions. [2020-10-20 05:52:17,241 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 76 transitions. Word has length 19 [2020-10-20 05:52:17,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 05:52:17,242 INFO L481 AbstractCegarLoop]: Abstraction has 68 states and 76 transitions. [2020-10-20 05:52:17,242 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-20 05:52:17,242 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 76 transitions. [2020-10-20 05:52:17,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-10-20 05:52:17,243 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 05:52:17,243 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 05:52:17,456 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 mathsat -unsat_core_generation=3 [2020-10-20 05:52:17,458 INFO L429 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONMEMORY_FREE, mainErr2ASSERT_VIOLATIONMEMORY_FREE, mainErr3ENSURES_VIOLATIONMEMORY_LEAK, mainErr1ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr4ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr3ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr2ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr1REQUIRES_VIOLATION, expandArrayErr0REQUIRES_VIOLATION]=== [2020-10-20 05:52:17,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 05:52:17,459 INFO L82 PathProgramCache]: Analyzing trace with hash -766816059, now seen corresponding path program 1 times [2020-10-20 05:52:17,460 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-20 05:52:17,461 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [717247103] [2020-10-20 05:52:17,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 12 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with mathsat -unsat_core_generation=3 [2020-10-20 05:52:17,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 05:52:17,561 INFO L263 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 6 conjunts are in the unsatisfiable core [2020-10-20 05:52:17,562 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 05:52:17,641 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 05:52:17,642 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-20 05:52:17,723 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 05:52:17,723 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [717247103] [2020-10-20 05:52:17,724 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-20 05:52:17,724 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2020-10-20 05:52:17,724 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2030387264] [2020-10-20 05:52:17,724 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-20 05:52:17,725 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-20 05:52:17,725 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-20 05:52:17,725 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2020-10-20 05:52:17,725 INFO L87 Difference]: Start difference. First operand 68 states and 76 transitions. Second operand 10 states. [2020-10-20 05:52:17,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 05:52:17,885 INFO L93 Difference]: Finished difference Result 60 states and 67 transitions. [2020-10-20 05:52:17,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-20 05:52:17,886 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 20 [2020-10-20 05:52:17,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 05:52:17,886 INFO L225 Difference]: With dead ends: 60 [2020-10-20 05:52:17,886 INFO L226 Difference]: Without dead ends: 60 [2020-10-20 05:52:17,887 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-10-20 05:52:17,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2020-10-20 05:52:17,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 60. [2020-10-20 05:52:17,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60 states. [2020-10-20 05:52:17,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 67 transitions. [2020-10-20 05:52:17,893 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 67 transitions. Word has length 20 [2020-10-20 05:52:17,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 05:52:17,893 INFO L481 AbstractCegarLoop]: Abstraction has 60 states and 67 transitions. [2020-10-20 05:52:17,893 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-20 05:52:17,893 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 67 transitions. [2020-10-20 05:52:17,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-20 05:52:17,894 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 05:52:17,894 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 05:52:18,103 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 mathsat -unsat_core_generation=3 [2020-10-20 05:52:18,104 INFO L429 AbstractCegarLoop]: === Iteration 11 === [mainErr0ASSERT_VIOLATIONMEMORY_FREE, mainErr2ASSERT_VIOLATIONMEMORY_FREE, mainErr3ENSURES_VIOLATIONMEMORY_LEAK, mainErr1ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr4ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr3ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr2ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr1REQUIRES_VIOLATION, expandArrayErr0REQUIRES_VIOLATION]=== [2020-10-20 05:52:18,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 05:52:18,104 INFO L82 PathProgramCache]: Analyzing trace with hash 1360467952, now seen corresponding path program 1 times [2020-10-20 05:52:18,105 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-20 05:52:18,105 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2107230371] [2020-10-20 05:52:18,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 13 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with mathsat -unsat_core_generation=3 [2020-10-20 05:52:18,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 05:52:18,207 INFO L263 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 7 conjunts are in the unsatisfiable core [2020-10-20 05:52:18,209 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 05:52:18,342 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 05:52:18,342 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-20 05:52:18,409 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 05:52:18,409 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2107230371] [2020-10-20 05:52:18,409 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-20 05:52:18,410 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 4] imperfect sequences [] total 9 [2020-10-20 05:52:18,410 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [505049869] [2020-10-20 05:52:18,410 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-20 05:52:18,411 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-20 05:52:18,411 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-20 05:52:18,411 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2020-10-20 05:52:18,411 INFO L87 Difference]: Start difference. First operand 60 states and 67 transitions. Second operand 10 states. [2020-10-20 05:52:18,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 05:52:18,618 INFO L93 Difference]: Finished difference Result 59 states and 66 transitions. [2020-10-20 05:52:18,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-20 05:52:18,620 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 22 [2020-10-20 05:52:18,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 05:52:18,620 INFO L225 Difference]: With dead ends: 59 [2020-10-20 05:52:18,621 INFO L226 Difference]: Without dead ends: 59 [2020-10-20 05:52:18,621 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-10-20 05:52:18,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2020-10-20 05:52:18,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 59. [2020-10-20 05:52:18,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2020-10-20 05:52:18,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 66 transitions. [2020-10-20 05:52:18,625 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 66 transitions. Word has length 22 [2020-10-20 05:52:18,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 05:52:18,625 INFO L481 AbstractCegarLoop]: Abstraction has 59 states and 66 transitions. [2020-10-20 05:52:18,625 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-20 05:52:18,626 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 66 transitions. [2020-10-20 05:52:18,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-10-20 05:52:18,626 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 05:52:18,627 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 05:52:18,835 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 mathsat -unsat_core_generation=3 [2020-10-20 05:52:18,836 INFO L429 AbstractCegarLoop]: === Iteration 12 === [mainErr0ASSERT_VIOLATIONMEMORY_FREE, mainErr2ASSERT_VIOLATIONMEMORY_FREE, mainErr3ENSURES_VIOLATIONMEMORY_LEAK, mainErr1ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr4ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr3ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr2ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr1REQUIRES_VIOLATION, expandArrayErr0REQUIRES_VIOLATION]=== [2020-10-20 05:52:18,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 05:52:18,836 INFO L82 PathProgramCache]: Analyzing trace with hash -1753462742, now seen corresponding path program 1 times [2020-10-20 05:52:18,837 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-20 05:52:18,837 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1425876420] [2020-10-20 05:52:18,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 14 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with mathsat -unsat_core_generation=3 [2020-10-20 05:52:18,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 05:52:18,945 INFO L263 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-20 05:52:18,947 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 05:52:18,970 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 05:52:18,970 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-20 05:52:19,022 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 05:52:19,022 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1425876420] [2020-10-20 05:52:19,022 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-20 05:52:19,023 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2020-10-20 05:52:19,023 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [796790842] [2020-10-20 05:52:19,023 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-20 05:52:19,023 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-20 05:52:19,023 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-20 05:52:19,024 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-20 05:52:19,024 INFO L87 Difference]: Start difference. First operand 59 states and 66 transitions. Second operand 5 states. [2020-10-20 05:52:19,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 05:52:19,082 INFO L93 Difference]: Finished difference Result 59 states and 64 transitions. [2020-10-20 05:52:19,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-20 05:52:19,082 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 27 [2020-10-20 05:52:19,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 05:52:19,083 INFO L225 Difference]: With dead ends: 59 [2020-10-20 05:52:19,083 INFO L226 Difference]: Without dead ends: 59 [2020-10-20 05:52:19,084 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-20 05:52:19,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2020-10-20 05:52:19,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 59. [2020-10-20 05:52:19,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2020-10-20 05:52:19,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 64 transitions. [2020-10-20 05:52:19,088 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 64 transitions. Word has length 27 [2020-10-20 05:52:19,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 05:52:19,088 INFO L481 AbstractCegarLoop]: Abstraction has 59 states and 64 transitions. [2020-10-20 05:52:19,088 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-20 05:52:19,088 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 64 transitions. [2020-10-20 05:52:19,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-10-20 05:52:19,089 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 05:52:19,089 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 05:52:19,292 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 mathsat -unsat_core_generation=3 [2020-10-20 05:52:19,293 INFO L429 AbstractCegarLoop]: === Iteration 13 === [mainErr0ASSERT_VIOLATIONMEMORY_FREE, mainErr2ASSERT_VIOLATIONMEMORY_FREE, mainErr3ENSURES_VIOLATIONMEMORY_LEAK, mainErr1ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr4ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr3ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr2ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr1REQUIRES_VIOLATION, expandArrayErr0REQUIRES_VIOLATION]=== [2020-10-20 05:52:19,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 05:52:19,293 INFO L82 PathProgramCache]: Analyzing trace with hash 64890135, now seen corresponding path program 1 times [2020-10-20 05:52:19,294 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-20 05:52:19,294 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [114978283] [2020-10-20 05:52:19,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 15 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with mathsat -unsat_core_generation=3 [2020-10-20 05:52:19,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 05:52:19,409 INFO L263 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 6 conjunts are in the unsatisfiable core [2020-10-20 05:52:19,410 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 05:52:19,443 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-20 05:52:19,443 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-20 05:52:19,481 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-20 05:52:19,482 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [114978283] [2020-10-20 05:52:19,482 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-20 05:52:19,482 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 7 [2020-10-20 05:52:19,482 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1874962454] [2020-10-20 05:52:19,483 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-20 05:52:19,483 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-20 05:52:19,483 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-20 05:52:19,484 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-10-20 05:52:19,484 INFO L87 Difference]: Start difference. First operand 59 states and 64 transitions. Second operand 7 states. [2020-10-20 05:52:19,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 05:52:19,613 INFO L93 Difference]: Finished difference Result 65 states and 67 transitions. [2020-10-20 05:52:19,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-20 05:52:19,614 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 29 [2020-10-20 05:52:19,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 05:52:19,615 INFO L225 Difference]: With dead ends: 65 [2020-10-20 05:52:19,615 INFO L226 Difference]: Without dead ends: 59 [2020-10-20 05:52:19,616 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2020-10-20 05:52:19,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2020-10-20 05:52:19,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 59. [2020-10-20 05:52:19,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2020-10-20 05:52:19,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 61 transitions. [2020-10-20 05:52:19,620 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 61 transitions. Word has length 29 [2020-10-20 05:52:19,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 05:52:19,621 INFO L481 AbstractCegarLoop]: Abstraction has 59 states and 61 transitions. [2020-10-20 05:52:19,621 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-20 05:52:19,621 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 61 transitions. [2020-10-20 05:52:19,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-10-20 05:52:19,622 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 05:52:19,622 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 05:52:19,832 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 mathsat -unsat_core_generation=3 [2020-10-20 05:52:19,833 INFO L429 AbstractCegarLoop]: === Iteration 14 === [mainErr0ASSERT_VIOLATIONMEMORY_FREE, mainErr2ASSERT_VIOLATIONMEMORY_FREE, mainErr3ENSURES_VIOLATIONMEMORY_LEAK, mainErr1ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr4ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr3ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr2ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr1REQUIRES_VIOLATION, expandArrayErr0REQUIRES_VIOLATION]=== [2020-10-20 05:52:19,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 05:52:19,834 INFO L82 PathProgramCache]: Analyzing trace with hash -1742564328, now seen corresponding path program 1 times [2020-10-20 05:52:19,834 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-20 05:52:19,834 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1674118351] [2020-10-20 05:52:19,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 16 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with mathsat -unsat_core_generation=3 [2020-10-20 05:52:19,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 05:52:19,954 INFO L263 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-20 05:52:19,955 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 05:52:19,980 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-20 05:52:19,981 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-20 05:52:20,009 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-20 05:52:20,009 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1674118351] [2020-10-20 05:52:20,009 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-20 05:52:20,009 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2020-10-20 05:52:20,010 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2107687468] [2020-10-20 05:52:20,010 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-20 05:52:20,010 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-20 05:52:20,010 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-20 05:52:20,010 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-20 05:52:20,011 INFO L87 Difference]: Start difference. First operand 59 states and 61 transitions. Second operand 5 states. [2020-10-20 05:52:20,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 05:52:20,054 INFO L93 Difference]: Finished difference Result 58 states and 60 transitions. [2020-10-20 05:52:20,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-20 05:52:20,055 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 29 [2020-10-20 05:52:20,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 05:52:20,056 INFO L225 Difference]: With dead ends: 58 [2020-10-20 05:52:20,056 INFO L226 Difference]: Without dead ends: 58 [2020-10-20 05:52:20,057 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-20 05:52:20,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2020-10-20 05:52:20,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 56. [2020-10-20 05:52:20,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2020-10-20 05:52:20,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 58 transitions. [2020-10-20 05:52:20,060 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 58 transitions. Word has length 29 [2020-10-20 05:52:20,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 05:52:20,060 INFO L481 AbstractCegarLoop]: Abstraction has 56 states and 58 transitions. [2020-10-20 05:52:20,060 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-20 05:52:20,060 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 58 transitions. [2020-10-20 05:52:20,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-10-20 05:52:20,061 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 05:52:20,061 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 05:52:20,269 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 mathsat -unsat_core_generation=3 [2020-10-20 05:52:20,270 INFO L429 AbstractCegarLoop]: === Iteration 15 === [mainErr0ASSERT_VIOLATIONMEMORY_FREE, mainErr2ASSERT_VIOLATIONMEMORY_FREE, mainErr3ENSURES_VIOLATIONMEMORY_LEAK, mainErr1ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr4ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr3ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr2ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr1REQUIRES_VIOLATION, expandArrayErr0REQUIRES_VIOLATION]=== [2020-10-20 05:52:20,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 05:52:20,270 INFO L82 PathProgramCache]: Analyzing trace with hash 188620705, now seen corresponding path program 1 times [2020-10-20 05:52:20,270 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-20 05:52:20,271 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1171270808] [2020-10-20 05:52:20,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 17 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with mathsat -unsat_core_generation=3 [2020-10-20 05:52:20,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 05:52:20,409 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 05:52:20,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 05:52:20,445 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 05:52:20,485 INFO L173 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2020-10-20 05:52:20,485 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-20 05:52:20,697 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 mathsat -unsat_core_generation=3 [2020-10-20 05:52:20,740 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.10 05:52:20 BoogieIcfgContainer [2020-10-20 05:52:20,740 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-20 05:52:20,740 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-20 05:52:20,740 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-20 05:52:20,740 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-20 05:52:20,741 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 05:52:10" (3/4) ... [2020-10-20 05:52:20,743 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-10-20 05:52:20,807 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-20 05:52:20,808 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-20 05:52:20,809 INFO L168 Benchmark]: Toolchain (without parser) took 11919.44 ms. Allocated memory was 34.1 MB in the beginning and 80.7 MB in the end (delta: 46.7 MB). Free memory was 10.1 MB in the beginning and 36.6 MB in the end (delta: -26.5 MB). Peak memory consumption was 20.1 MB. Max. memory is 14.3 GB. [2020-10-20 05:52:20,810 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 33.0 MB. Free memory was 17.8 MB in the beginning and 17.8 MB in the end (delta: 41.7 kB). Peak memory consumption was 41.7 kB. Max. memory is 14.3 GB. [2020-10-20 05:52:20,810 INFO L168 Benchmark]: CACSL2BoogieTranslator took 712.97 ms. Allocated memory was 34.1 MB in the beginning and 45.1 MB in the end (delta: 11.0 MB). Free memory was 9.2 MB in the beginning and 15.8 MB in the end (delta: -6.6 MB). Peak memory consumption was 8.8 MB. Max. memory is 14.3 GB. [2020-10-20 05:52:20,811 INFO L168 Benchmark]: Boogie Preprocessor took 121.30 ms. Allocated memory is still 45.1 MB. Free memory was 15.8 MB in the beginning and 12.7 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 14.3 GB. [2020-10-20 05:52:20,812 INFO L168 Benchmark]: RCFGBuilder took 668.08 ms. Allocated memory was 45.1 MB in the beginning and 47.2 MB in the end (delta: 2.1 MB). Free memory was 12.7 MB in the beginning and 13.8 MB in the end (delta: -1.1 MB). Peak memory consumption was 4.0 MB. Max. memory is 14.3 GB. [2020-10-20 05:52:20,812 INFO L168 Benchmark]: TraceAbstraction took 10339.06 ms. Allocated memory was 47.2 MB in the beginning and 80.7 MB in the end (delta: 33.6 MB). Free memory was 13.2 MB in the beginning and 40.5 MB in the end (delta: -27.3 MB). Peak memory consumption was 6.2 MB. Max. memory is 14.3 GB. [2020-10-20 05:52:20,813 INFO L168 Benchmark]: Witness Printer took 67.60 ms. Allocated memory is still 80.7 MB. Free memory was 40.5 MB in the beginning and 36.6 MB in the end (delta: 3.9 MB). Peak memory consumption was 3.9 MB. Max. memory is 14.3 GB. [2020-10-20 05:52:20,816 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 33.0 MB. Free memory was 17.8 MB in the beginning and 17.8 MB in the end (delta: 41.7 kB). Peak memory consumption was 41.7 kB. Max. memory is 14.3 GB. * CACSL2BoogieTranslator took 712.97 ms. Allocated memory was 34.1 MB in the beginning and 45.1 MB in the end (delta: 11.0 MB). Free memory was 9.2 MB in the beginning and 15.8 MB in the end (delta: -6.6 MB). Peak memory consumption was 8.8 MB. Max. memory is 14.3 GB. * Boogie Preprocessor took 121.30 ms. Allocated memory is still 45.1 MB. Free memory was 15.8 MB in the beginning and 12.7 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 14.3 GB. * RCFGBuilder took 668.08 ms. Allocated memory was 45.1 MB in the beginning and 47.2 MB in the end (delta: 2.1 MB). Free memory was 12.7 MB in the beginning and 13.8 MB in the end (delta: -1.1 MB). Peak memory consumption was 4.0 MB. Max. memory is 14.3 GB. * TraceAbstraction took 10339.06 ms. Allocated memory was 47.2 MB in the beginning and 80.7 MB in the end (delta: 33.6 MB). Free memory was 13.2 MB in the beginning and 40.5 MB in the end (delta: -27.3 MB). Peak memory consumption was 6.2 MB. Max. memory is 14.3 GB. * Witness Printer took 67.60 ms. Allocated memory is still 80.7 MB. Free memory was 40.5 MB in the beginning and 36.6 MB in the end (delta: 3.9 MB). Peak memory consumption was 3.9 MB. Max. memory is 14.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 538]: free of unallocated memory possible free of unallocated memory possible We found a FailurePath: [L512] int num; [L513] int ind, newsize, i = 1; VAL [\old(i)=5, \old(ind)=6, \old(newsize)=7, \old(num)=9, i=1, ind=0, newsize=0, num=0] [L528] num = __VERIFIER_nondet_int() [L529] COND FALSE !(!(num > 0 && num < 100)) [L532] int *a = (int *)malloc(sizeof(int)); VAL [\old(argc)=11, \old(newsize)=0, \old(num)=0, a={1:0}, argc=11, argv={13:12}, argv={13:12}, i=1, ind=0, malloc(sizeof(int))={1:0}, newsize=0, num=1] [L533] COND FALSE !(a == ((void *)0)) [L536] newsize = 0 VAL [\old(argc)=11, \old(newsize)=0, \old(num)=0, a={1:0}, argc=11, argv={13:12}, argv={13:12}, i=1, ind=0, malloc(sizeof(int))={1:0}, newsize=0, num=1] [L537] CALL expandArray(a) VAL [\old(newsize)=0, \old(num)=0, arg={1:0}, i=1, ind=0, newsize=0, num=1] [L515] int *a = (int *)arg; [L516] int *b = ((void *)0); VAL [\old(newsize)=0, \old(num)=0, a={1:0}, arg={1:0}, arg={1:0}, b={0:0}, i=1, ind=0, newsize=0, num=1] [L517] COND TRUE newsize < num [L518] newsize = newsize + 1 VAL [\old(newsize)=0, \old(num)=0, a={1:0}, arg={1:0}, arg={1:0}, b={0:0}, i=1, ind=0, newsize=1, num=1] [L519] EXPR, FCALL realloc(a, sizeof(int) * newsize) VAL [\old(newsize)=0, \old(num)=0, a={1:0}, arg={1:0}, arg={1:0}, b={0:0}, i=1, ind=0, newsize=1, num=1, realloc(a, sizeof(int) * newsize)={1:0}] [L519] b = realloc(a, sizeof(int) * newsize) [L520] b[newsize - 1] = i VAL [\old(newsize)=0, \old(num)=0, a={1:0}, arg={1:0}, arg={1:0}, b={1:0}, i=1, ind=0, newsize=1, num=1] [L521] a = b VAL [\old(newsize)=0, \old(num)=0, a={1:0}, arg={1:0}, arg={1:0}, b={1:0}, i=1, ind=0, newsize=1, num=1] [L517] COND FALSE !(newsize < num) VAL [\old(newsize)=0, \old(num)=0, a={1:0}, arg={1:0}, arg={1:0}, b={1:0}, i=1, ind=0, newsize=1, num=1] [L523] COND TRUE b != ((void *)0) VAL [\old(newsize)=0, \old(num)=0, a={1:0}, arg={1:0}, arg={1:0}, b={1:0}, i=1, ind=0, newsize=1, num=1] [L524] free(b) VAL [\old(newsize)=0, \old(num)=0, a={1:0}, arg={1:0}, arg={1:0}, b={1:0}, i=1, ind=0, newsize=1, num=1] [L524] free(b) VAL [\old(newsize)=0, \old(num)=0, a={1:0}, arg={1:0}, arg={1:0}, b={1:0}, i=1, ind=0, newsize=1, num=1] [L524] free(b) [L525] return 0; VAL [\old(newsize)=0, \old(num)=0, \result={0:0}, a={1:0}, arg={1:0}, arg={1:0}, b={1:0}, i=1, ind=0, newsize=1, num=1] [L537] RET expandArray(a) VAL [\old(argc)=11, \old(newsize)=0, \old(num)=0, a={1:0}, argc=11, argv={13:12}, argv={13:12}, expandArray(a)={0:0}, i=1, ind=0, malloc(sizeof(int))={1:0}, newsize=1, num=1] [L538] free(a) VAL [\old(argc)=11, \old(newsize)=0, \old(num)=0, a={1:0}, argc=11, argv={13:12}, argv={13:12}, i=1, ind=0, malloc(sizeof(int))={1:0}, newsize=1, num=1] [L538] free(a) VAL [\old(argc)=11, \old(newsize)=0, \old(num)=0, a={1:0}, argc=11, argv={13:12}, argv={13:12}, i=1, ind=0, malloc(sizeof(int))={1:0}, newsize=1, num=1] [L538] free(a) VAL [\old(argc)=11, \old(newsize)=0, \old(num)=0, a={1:0}, argc=11, argv={13:12}, argv={13:12}, i=1, ind=0, malloc(sizeof(int))={1:0}, newsize=1, num=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 11 procedures, 63 locations, 9 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 10.2s, OverallIterations: 15, TraceHistogramMax: 2, AutomataDifference: 2.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 468 SDtfs, 422 SDslu, 958 SDs, 0 SdLazy, 600 SolverSat, 77 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 536 GetRequests, 460 SyntacticMatches, 6 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 101 ImplicationChecksByTransitivity, 1.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=68occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 14 MinimizatonAttempts, 92 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 1.7s InterpolantComputationTime, 292 NumberOfCodeBlocks, 292 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 496 ConstructedInterpolants, 21 QuantifiedInterpolants, 28049 SizeOfPredicates, 19 NumberOfNonLiveVariables, 1347 ConjunctsInSsa, 69 ConjunctsInUnsatCore, 28 InterpolantComputations, 26 PerfectInterpolantSequences, 40/44 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 proved your program to be incorrect! Received shutdown request...