./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/array-memsafety/selectionsort-alloca-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 906a4fb5 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -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/selectionsort-alloca-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 82679d367c32c359f0c9c81b27b57deea5682b2b ............................................................................................................................. 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 -Xmx12G -Xms1G -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/selectionsort-alloca-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 82679d367c32c359f0c9c81b27b57deea5682b2b ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN --- Real Ultimate output --- This is Ultimate 0.1.25-906a4fb [2020-10-19 17:58:48,051 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-19 17:58:48,054 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-19 17:58:48,077 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-19 17:58:48,077 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-19 17:58:48,078 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-19 17:58:48,080 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-19 17:58:48,082 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-19 17:58:48,088 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-19 17:58:48,089 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-19 17:58:48,092 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-19 17:58:48,093 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-19 17:58:48,096 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-19 17:58:48,097 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-19 17:58:48,098 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-19 17:58:48,102 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-19 17:58:48,103 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-19 17:58:48,104 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-19 17:58:48,106 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-19 17:58:48,108 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-19 17:58:48,109 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-19 17:58:48,110 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-19 17:58:48,112 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-19 17:58:48,113 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-19 17:58:48,115 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-19 17:58:48,116 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-19 17:58:48,116 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-19 17:58:48,117 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-19 17:58:48,118 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-19 17:58:48,119 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-19 17:58:48,119 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-19 17:58:48,120 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-19 17:58:48,121 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-19 17:58:48,122 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-19 17:58:48,123 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-19 17:58:48,123 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-19 17:58:48,124 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-19 17:58:48,124 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-19 17:58:48,125 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-19 17:58:48,126 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-19 17:58:48,127 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-19 17:58:48,127 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2020-10-19 17:58:48,158 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-19 17:58:48,160 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-19 17:58:48,161 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-19 17:58:48,162 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-19 17:58:48,163 INFO L138 SettingsManager]: * Use SBE=true [2020-10-19 17:58:48,163 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-19 17:58:48,163 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-19 17:58:48,164 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-10-19 17:58:48,164 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-19 17:58:48,164 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-19 17:58:48,166 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-19 17:58:48,166 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-10-19 17:58:48,166 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-10-19 17:58:48,167 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2020-10-19 17:58:48,167 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-19 17:58:48,167 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-10-19 17:58:48,168 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-19 17:58:48,169 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-19 17:58:48,169 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-19 17:58:48,170 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-19 17:58:48,170 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-19 17:58:48,170 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-19 17:58:48,171 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-19 17:58:48,171 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-19 17:58:48,171 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-19 17:58:48,172 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-19 17:58:48,172 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-19 17:58:48,172 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-19 17:58:48,172 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 -> 82679d367c32c359f0c9c81b27b57deea5682b2b [2020-10-19 17:58:48,482 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-19 17:58:48,495 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-19 17:58:48,498 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-19 17:58:48,500 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-19 17:58:48,500 INFO L275 PluginConnector]: CDTParser initialized [2020-10-19 17:58:48,501 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-memsafety/selectionsort-alloca-1.i [2020-10-19 17:58:48,562 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/edc738404/2c3e307160e6451887432f8ce40ae2d2/FLAGb560b84b3 [2020-10-19 17:58:48,996 INFO L306 CDTParser]: Found 1 translation units. [2020-10-19 17:58:48,997 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-memsafety/selectionsort-alloca-1.i [2020-10-19 17:58:49,011 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/edc738404/2c3e307160e6451887432f8ce40ae2d2/FLAGb560b84b3 [2020-10-19 17:58:49,302 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/edc738404/2c3e307160e6451887432f8ce40ae2d2 [2020-10-19 17:58:49,305 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-19 17:58:49,311 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-19 17:58:49,312 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-19 17:58:49,313 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-19 17:58:49,317 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-19 17:58:49,318 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 05:58:49" (1/1) ... [2020-10-19 17:58:49,322 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d5b8929 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 05:58:49, skipping insertion in model container [2020-10-19 17:58:49,323 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 05:58:49" (1/1) ... [2020-10-19 17:58:49,332 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-19 17:58:49,396 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-19 17:58:49,895 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-19 17:58:50,031 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) [2020-10-19 17:58:50,032 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@bcfac9a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 05:58:50, skipping insertion in model container [2020-10-19 17:58:50,032 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-19 17:58:50,033 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.preprocessor [2020-10-19 17:58:50,038 INFO L168 Benchmark]: Toolchain (without parser) took 728.41 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 162.0 MB). Free memory was 947.8 MB in the beginning and 1.2 GB in the end (delta: -202.6 MB). Peak memory consumption was 21.2 MB. Max. memory is 11.5 GB. [2020-10-19 17:58:50,039 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 1.0 GB. Free memory is still 980.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-10-19 17:58:50,042 INFO L168 Benchmark]: CACSL2BoogieTranslator took 720.67 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 162.0 MB). Free memory was 947.8 MB in the beginning and 1.2 GB in the end (delta: -202.6 MB). Peak memory consumption was 21.2 MB. Max. memory is 11.5 GB. [2020-10-19 17:58:50,046 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 1.0 GB. Free memory is still 980.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 720.67 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 162.0 MB). Free memory was 947.8 MB in the beginning and 1.2 GB in the end (delta: -202.6 MB). Peak memory consumption was 21.2 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 534]: 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 0.1.25-906a4fb [2020-10-19 17:58:51,900 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-19 17:58:51,903 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-19 17:58:51,929 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-19 17:58:51,929 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-19 17:58:51,931 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-19 17:58:51,933 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-19 17:58:51,935 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-19 17:58:51,937 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-19 17:58:51,938 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-19 17:58:51,939 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-19 17:58:51,940 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-19 17:58:51,941 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-19 17:58:51,942 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-19 17:58:51,943 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-19 17:58:51,945 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-19 17:58:51,946 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-19 17:58:51,947 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-19 17:58:51,949 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-19 17:58:51,951 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-19 17:58:51,952 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-19 17:58:51,954 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-19 17:58:51,955 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-19 17:58:51,956 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-19 17:58:51,959 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-19 17:58:51,959 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-19 17:58:51,959 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-19 17:58:51,961 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-19 17:58:51,961 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-19 17:58:51,962 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-19 17:58:51,963 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-19 17:58:51,963 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-19 17:58:51,964 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-19 17:58:51,965 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-19 17:58:51,967 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-19 17:58:51,967 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-19 17:58:51,968 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-19 17:58:51,968 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-19 17:58:51,968 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-19 17:58:51,969 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-19 17:58:51,970 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-19 17:58:51,971 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2020-10-19 17:58:51,996 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-19 17:58:51,996 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-19 17:58:51,998 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-19 17:58:51,998 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-19 17:58:51,999 INFO L138 SettingsManager]: * Use SBE=true [2020-10-19 17:58:51,999 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-19 17:58:51,999 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-19 17:58:51,999 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-10-19 17:58:52,000 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-19 17:58:52,000 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-19 17:58:52,000 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-19 17:58:52,000 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-10-19 17:58:52,001 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-10-19 17:58:52,001 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2020-10-19 17:58:52,001 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-19 17:58:52,002 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-10-19 17:58:52,002 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-10-19 17:58:52,002 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-10-19 17:58:52,002 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-19 17:58:52,003 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-19 17:58:52,003 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-19 17:58:52,003 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-19 17:58:52,004 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-19 17:58:52,004 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-19 17:58:52,004 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-19 17:58:52,004 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-19 17:58:52,005 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-19 17:58:52,005 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-10-19 17:58:52,005 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-10-19 17:58:52,006 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-19 17:58:52,006 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-19 17:58:52,006 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 -> 82679d367c32c359f0c9c81b27b57deea5682b2b [2020-10-19 17:58:52,359 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-19 17:58:52,377 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-19 17:58:52,380 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-19 17:58:52,382 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-19 17:58:52,383 INFO L275 PluginConnector]: CDTParser initialized [2020-10-19 17:58:52,383 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-memsafety/selectionsort-alloca-1.i [2020-10-19 17:58:52,448 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/06b94c53c/f83d7620cb334ba8a13bad6417d53e85/FLAG1f60f25a4 [2020-10-19 17:58:52,952 INFO L306 CDTParser]: Found 1 translation units. [2020-10-19 17:58:52,953 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-memsafety/selectionsort-alloca-1.i [2020-10-19 17:58:52,967 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/06b94c53c/f83d7620cb334ba8a13bad6417d53e85/FLAG1f60f25a4 [2020-10-19 17:58:53,242 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/06b94c53c/f83d7620cb334ba8a13bad6417d53e85 [2020-10-19 17:58:53,248 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-19 17:58:53,258 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-19 17:58:53,259 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-19 17:58:53,260 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-19 17:58:53,264 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-19 17:58:53,265 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 05:58:53" (1/1) ... [2020-10-19 17:58:53,270 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@29dd9f09 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 05:58:53, skipping insertion in model container [2020-10-19 17:58:53,270 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 05:58:53" (1/1) ... [2020-10-19 17:58:53,281 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-19 17:58:53,338 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-19 17:58:53,838 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-19 17:58:53,853 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2020-10-19 17:58:53,860 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-19 17:58:53,887 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-19 17:58:53,893 INFO L203 MainTranslator]: Completed pre-run [2020-10-19 17:58:53,930 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-19 17:58:54,004 INFO L208 MainTranslator]: Completed translation [2020-10-19 17:58:54,006 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 05:58:54 WrapperNode [2020-10-19 17:58:54,006 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-19 17:58:54,007 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-19 17:58:54,007 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-19 17:58:54,008 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-19 17:58:54,021 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 05:58:54" (1/1) ... [2020-10-19 17:58:54,021 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 05:58:54" (1/1) ... [2020-10-19 17:58:54,038 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 05:58:54" (1/1) ... [2020-10-19 17:58:54,039 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 05:58:54" (1/1) ... [2020-10-19 17:58:54,057 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 05:58:54" (1/1) ... [2020-10-19 17:58:54,062 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 05:58:54" (1/1) ... [2020-10-19 17:58:54,066 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 05:58:54" (1/1) ... [2020-10-19 17:58:54,073 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-19 17:58:54,074 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-19 17:58:54,074 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-19 17:58:54,074 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-19 17:58:54,075 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 05:58:54" (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 [2020-10-19 17:58:54,147 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-19 17:58:54,147 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-19 17:58:54,148 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.setCurrentRoundingMode [2020-10-19 17:58:54,148 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2020-10-19 17:58:54,149 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2020-10-19 17:58:54,149 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2020-10-19 17:58:54,150 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2020-10-19 17:58:54,150 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2020-10-19 17:58:54,150 INFO L138 BoogieDeclarations]: Found implementation of procedure SelectionSort [2020-10-19 17:58:54,151 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-19 17:58:54,151 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-10-19 17:58:54,152 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-10-19 17:58:54,152 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-10-19 17:58:54,152 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-10-19 17:58:54,152 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-10-19 17:58:54,153 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-10-19 17:58:54,153 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-10-19 17:58:54,153 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-10-19 17:58:54,154 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-10-19 17:58:54,154 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-10-19 17:58:54,155 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-10-19 17:58:54,157 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-10-19 17:58:54,157 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-10-19 17:58:54,157 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-10-19 17:58:54,157 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-10-19 17:58:54,158 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-10-19 17:58:54,158 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2020-10-19 17:58:54,158 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2020-10-19 17:58:54,158 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2020-10-19 17:58:54,158 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2020-10-19 17:58:54,159 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2020-10-19 17:58:54,159 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-10-19 17:58:54,159 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-10-19 17:58:54,159 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-10-19 17:58:54,159 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-10-19 17:58:54,160 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-10-19 17:58:54,161 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-10-19 17:58:54,161 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-10-19 17:58:54,163 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-10-19 17:58:54,163 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-10-19 17:58:54,163 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-10-19 17:58:54,164 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-10-19 17:58:54,165 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-10-19 17:58:54,165 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-10-19 17:58:54,165 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-10-19 17:58:54,166 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-10-19 17:58:54,166 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-10-19 17:58:54,166 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-10-19 17:58:54,166 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-10-19 17:58:54,167 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-10-19 17:58:54,167 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-10-19 17:58:54,167 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-10-19 17:58:54,167 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-10-19 17:58:54,169 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-10-19 17:58:54,169 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-10-19 17:58:54,169 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-10-19 17:58:54,169 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-10-19 17:58:54,169 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-10-19 17:58:54,170 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-10-19 17:58:54,170 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-10-19 17:58:54,170 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-10-19 17:58:54,170 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-10-19 17:58:54,171 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-10-19 17:58:54,172 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-10-19 17:58:54,172 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-10-19 17:58:54,172 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-19 17:58:54,173 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-10-19 17:58:54,173 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-10-19 17:58:54,173 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-19 17:58:54,173 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-10-19 17:58:54,174 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-10-19 17:58:54,174 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-10-19 17:58:54,174 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2020-10-19 17:58:54,174 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-19 17:58:54,175 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-10-19 17:58:54,175 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2020-10-19 17:58:54,175 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-10-19 17:58:54,175 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-19 17:58:54,175 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2020-10-19 17:58:54,175 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-10-19 17:58:54,175 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-10-19 17:58:54,175 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-10-19 17:58:54,176 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-10-19 17:58:54,176 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-10-19 17:58:54,176 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-10-19 17:58:54,176 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-10-19 17:58:54,176 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-10-19 17:58:54,176 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-10-19 17:58:54,176 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-10-19 17:58:54,177 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-10-19 17:58:54,177 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-10-19 17:58:54,177 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-10-19 17:58:54,177 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-10-19 17:58:54,177 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-10-19 17:58:54,177 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-10-19 17:58:54,178 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-10-19 17:58:54,178 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-10-19 17:58:54,178 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-10-19 17:58:54,178 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-10-19 17:58:54,178 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-10-19 17:58:54,178 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-10-19 17:58:54,178 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-10-19 17:58:54,178 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-10-19 17:58:54,178 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-10-19 17:58:54,179 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-10-19 17:58:54,179 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-10-19 17:58:54,179 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-10-19 17:58:54,179 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-10-19 17:58:54,179 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-10-19 17:58:54,179 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-10-19 17:58:54,180 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-10-19 17:58:54,180 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-10-19 17:58:54,180 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-10-19 17:58:54,181 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-10-19 17:58:54,181 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-10-19 17:58:54,181 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-10-19 17:58:54,182 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-10-19 17:58:54,182 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-19 17:58:54,182 INFO L130 BoogieDeclarations]: Found specification of procedure SelectionSort [2020-10-19 17:58:54,182 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-10-19 17:58:54,182 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-10-19 17:58:54,183 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-19 17:58:54,183 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-19 17:58:54,183 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-19 17:58:54,184 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-19 17:58:54,185 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-19 17:58:54,188 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.setCurrentRoundingMode [2020-10-19 17:58:54,937 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-19 17:58:54,938 INFO L298 CfgBuilder]: Removed 3 assume(true) statements. [2020-10-19 17:58:54,940 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 05:58:54 BoogieIcfgContainer [2020-10-19 17:58:54,940 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-19 17:58:54,941 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-19 17:58:54,942 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-19 17:58:54,945 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-19 17:58:54,946 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.10 05:58:53" (1/3) ... [2020-10-19 17:58:54,947 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62c9eba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.10 05:58:54, skipping insertion in model container [2020-10-19 17:58:54,947 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 05:58:54" (2/3) ... [2020-10-19 17:58:54,947 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62c9eba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.10 05:58:54, skipping insertion in model container [2020-10-19 17:58:54,948 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 05:58:54" (3/3) ... [2020-10-19 17:58:54,949 INFO L111 eAbstractionObserver]: Analyzing ICFG selectionsort-alloca-1.i [2020-10-19 17:58:54,961 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-19 17:58:54,969 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 15 error locations. [2020-10-19 17:58:54,983 INFO L253 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2020-10-19 17:58:55,004 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-19 17:58:55,005 INFO L378 AbstractCegarLoop]: Hoare is false [2020-10-19 17:58:55,005 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-19 17:58:55,005 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-19 17:58:55,005 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-19 17:58:55,006 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-19 17:58:55,006 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-19 17:58:55,006 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-19 17:58:55,021 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states. [2020-10-19 17:58:55,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-19 17:58:55,031 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 17:58:55,032 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 17:58:55,032 INFO L429 AbstractCegarLoop]: === Iteration 1 === [SelectionSortErr6REQUIRES_VIOLATION, SelectionSortErr1REQUIRES_VIOLATION, SelectionSortErr7REQUIRES_VIOLATION, SelectionSortErr10REQUIRES_VIOLATION, SelectionSortErr5REQUIRES_VIOLATION, SelectionSortErr0REQUIRES_VIOLATION, SelectionSortErr11REQUIRES_VIOLATION, SelectionSortErr9REQUIRES_VIOLATION, SelectionSortErr4REQUIRES_VIOLATION, SelectionSortErr2REQUIRES_VIOLATION, SelectionSortErr8REQUIRES_VIOLATION, SelectionSortErr3REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION]=== [2020-10-19 17:58:55,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 17:58:55,039 INFO L82 PathProgramCache]: Analyzing trace with hash 283903755, now seen corresponding path program 1 times [2020-10-19 17:58:55,052 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-19 17:58:55,053 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [162637045] [2020-10-19 17:58:55,053 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 [2020-10-19 17:58:55,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 17:58:55,198 INFO L263 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 7 conjunts are in the unsatisfiable core [2020-10-19 17:58:55,205 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 17:58:55,309 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 [2020-10-19 17:58:55,310 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-19 17:58:55,323 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-19 17:58:55,324 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-10-19 17:58:55,325 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:13, output treesize:12 [2020-10-19 17:58:55,344 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 17:58:55,344 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-19 17:58:55,518 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 17:58:55,519 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [162637045] [2020-10-19 17:58:55,520 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-19 17:58:55,520 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2020-10-19 17:58:55,521 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [872664968] [2020-10-19 17:58:55,526 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-19 17:58:55,527 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-19 17:58:55,541 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-19 17:58:55,542 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-19 17:58:55,544 INFO L87 Difference]: Start difference. First operand 49 states. Second operand 6 states. [2020-10-19 17:58:56,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 17:58:56,224 INFO L93 Difference]: Finished difference Result 74 states and 82 transitions. [2020-10-19 17:58:56,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-19 17:58:56,226 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 10 [2020-10-19 17:58:56,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 17:58:56,237 INFO L225 Difference]: With dead ends: 74 [2020-10-19 17:58:56,237 INFO L226 Difference]: Without dead ends: 69 [2020-10-19 17:58:56,239 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2020-10-19 17:58:56,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2020-10-19 17:58:56,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 50. [2020-10-19 17:58:56,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2020-10-19 17:58:56,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 56 transitions. [2020-10-19 17:58:56,285 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 56 transitions. Word has length 10 [2020-10-19 17:58:56,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 17:58:56,285 INFO L481 AbstractCegarLoop]: Abstraction has 50 states and 56 transitions. [2020-10-19 17:58:56,286 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-19 17:58:56,286 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 56 transitions. [2020-10-19 17:58:56,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-19 17:58:56,286 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 17:58:56,287 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 17:58:56,487 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-10-19 17:58:56,488 INFO L429 AbstractCegarLoop]: === Iteration 2 === [SelectionSortErr6REQUIRES_VIOLATION, SelectionSortErr1REQUIRES_VIOLATION, SelectionSortErr7REQUIRES_VIOLATION, SelectionSortErr10REQUIRES_VIOLATION, SelectionSortErr5REQUIRES_VIOLATION, SelectionSortErr0REQUIRES_VIOLATION, SelectionSortErr11REQUIRES_VIOLATION, SelectionSortErr9REQUIRES_VIOLATION, SelectionSortErr4REQUIRES_VIOLATION, SelectionSortErr2REQUIRES_VIOLATION, SelectionSortErr8REQUIRES_VIOLATION, SelectionSortErr3REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION]=== [2020-10-19 17:58:56,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 17:58:56,489 INFO L82 PathProgramCache]: Analyzing trace with hash 283903754, now seen corresponding path program 1 times [2020-10-19 17:58:56,489 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-19 17:58:56,490 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [410383854] [2020-10-19 17:58:56,490 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 [2020-10-19 17:58:56,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 17:58:56,587 INFO L263 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 3 conjunts are in the unsatisfiable core [2020-10-19 17:58:56,589 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 17:58:56,617 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 [2020-10-19 17:58:56,618 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-19 17:58:56,624 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-19 17:58:56,624 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-10-19 17:58:56,625 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2020-10-19 17:58:56,630 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 17:58:56,630 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-19 17:58:56,643 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 17:58:56,644 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [410383854] [2020-10-19 17:58:56,644 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-19 17:58:56,644 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-10-19 17:58:56,645 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1599889135] [2020-10-19 17:58:56,647 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 17:58:56,647 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-19 17:58:56,647 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 17:58:56,647 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 17:58:56,648 INFO L87 Difference]: Start difference. First operand 50 states and 56 transitions. Second operand 3 states. [2020-10-19 17:58:56,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 17:58:56,788 INFO L93 Difference]: Finished difference Result 49 states and 54 transitions. [2020-10-19 17:58:56,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 17:58:56,790 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2020-10-19 17:58:56,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 17:58:56,791 INFO L225 Difference]: With dead ends: 49 [2020-10-19 17:58:56,791 INFO L226 Difference]: Without dead ends: 49 [2020-10-19 17:58:56,792 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 17:58:56,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2020-10-19 17:58:56,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2020-10-19 17:58:56,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2020-10-19 17:58:56,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 54 transitions. [2020-10-19 17:58:56,807 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 54 transitions. Word has length 10 [2020-10-19 17:58:56,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 17:58:56,807 INFO L481 AbstractCegarLoop]: Abstraction has 49 states and 54 transitions. [2020-10-19 17:58:56,807 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 17:58:56,808 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 54 transitions. [2020-10-19 17:58:56,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-19 17:58:56,811 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 17:58:56,811 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 17:58:57,029 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-10-19 17:58:57,030 INFO L429 AbstractCegarLoop]: === Iteration 3 === [SelectionSortErr6REQUIRES_VIOLATION, SelectionSortErr1REQUIRES_VIOLATION, SelectionSortErr7REQUIRES_VIOLATION, SelectionSortErr10REQUIRES_VIOLATION, SelectionSortErr5REQUIRES_VIOLATION, SelectionSortErr0REQUIRES_VIOLATION, SelectionSortErr11REQUIRES_VIOLATION, SelectionSortErr9REQUIRES_VIOLATION, SelectionSortErr4REQUIRES_VIOLATION, SelectionSortErr2REQUIRES_VIOLATION, SelectionSortErr8REQUIRES_VIOLATION, SelectionSortErr3REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION]=== [2020-10-19 17:58:57,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 17:58:57,030 INFO L82 PathProgramCache]: Analyzing trace with hash -293040786, now seen corresponding path program 1 times [2020-10-19 17:58:57,031 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-19 17:58:57,031 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1086410902] [2020-10-19 17:58:57,031 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 [2020-10-19 17:58:57,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 17:58:57,137 INFO L263 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 5 conjunts are in the unsatisfiable core [2020-10-19 17:58:57,139 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 17:58:57,153 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 [2020-10-19 17:58:57,153 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-19 17:58:57,157 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-19 17:58:57,157 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-10-19 17:58:57,158 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2020-10-19 17:58:57,183 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 17:58:57,184 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-19 17:58:57,197 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 17:58:57,197 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1086410902] [2020-10-19 17:58:57,197 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-19 17:58:57,197 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2020-10-19 17:58:57,198 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1899290039] [2020-10-19 17:58:57,198 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-19 17:58:57,198 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-19 17:58:57,199 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-19 17:58:57,199 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-19 17:58:57,200 INFO L87 Difference]: Start difference. First operand 49 states and 54 transitions. Second operand 5 states. [2020-10-19 17:58:57,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 17:58:57,470 INFO L93 Difference]: Finished difference Result 43 states and 48 transitions. [2020-10-19 17:58:57,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-19 17:58:57,472 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2020-10-19 17:58:57,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 17:58:57,473 INFO L225 Difference]: With dead ends: 43 [2020-10-19 17:58:57,473 INFO L226 Difference]: Without dead ends: 43 [2020-10-19 17:58:57,474 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-19 17:58:57,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2020-10-19 17:58:57,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2020-10-19 17:58:57,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2020-10-19 17:58:57,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 48 transitions. [2020-10-19 17:58:57,480 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 48 transitions. Word has length 14 [2020-10-19 17:58:57,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 17:58:57,481 INFO L481 AbstractCegarLoop]: Abstraction has 43 states and 48 transitions. [2020-10-19 17:58:57,481 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-19 17:58:57,481 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 48 transitions. [2020-10-19 17:58:57,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-19 17:58:57,482 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 17:58:57,482 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 17:58:57,694 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-10-19 17:58:57,695 INFO L429 AbstractCegarLoop]: === Iteration 4 === [SelectionSortErr6REQUIRES_VIOLATION, SelectionSortErr1REQUIRES_VIOLATION, SelectionSortErr7REQUIRES_VIOLATION, SelectionSortErr10REQUIRES_VIOLATION, SelectionSortErr5REQUIRES_VIOLATION, SelectionSortErr0REQUIRES_VIOLATION, SelectionSortErr11REQUIRES_VIOLATION, SelectionSortErr9REQUIRES_VIOLATION, SelectionSortErr4REQUIRES_VIOLATION, SelectionSortErr2REQUIRES_VIOLATION, SelectionSortErr8REQUIRES_VIOLATION, SelectionSortErr3REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION]=== [2020-10-19 17:58:57,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 17:58:57,696 INFO L82 PathProgramCache]: Analyzing trace with hash -293040785, now seen corresponding path program 1 times [2020-10-19 17:58:57,697 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-19 17:58:57,698 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [750555804] [2020-10-19 17:58:57,698 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 [2020-10-19 17:58:57,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 17:58:57,794 INFO L263 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 12 conjunts are in the unsatisfiable core [2020-10-19 17:58:57,796 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 17:58:57,834 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 8 treesize of output 7 [2020-10-19 17:58:57,834 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-19 17:58:57,857 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-19 17:58:57,859 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [750555804] [2020-10-19 17:58:57,860 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: no int: (_ BitVec 32) [2020-10-19 17:58:57,860 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1440659768] [2020-10-19 17:58:57,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 6 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2020-10-19 17:58:58,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 17:58:58,072 INFO L263 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-19 17:58:58,073 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 17:58:58,097 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 17:58:58,097 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-19 17:58:58,127 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 17:58:58,128 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-19 17:58:58,128 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2020-10-19 17:58:58,128 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1789194731] [2020-10-19 17:58:58,129 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-19 17:58:58,129 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-19 17:58:58,129 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-19 17:58:58,130 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-19 17:58:58,130 INFO L87 Difference]: Start difference. First operand 43 states and 48 transitions. Second operand 6 states. [2020-10-19 17:58:58,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 17:58:58,226 INFO L93 Difference]: Finished difference Result 45 states and 49 transitions. [2020-10-19 17:58:58,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-19 17:58:58,227 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 14 [2020-10-19 17:58:58,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 17:58:58,228 INFO L225 Difference]: With dead ends: 45 [2020-10-19 17:58:58,228 INFO L226 Difference]: Without dead ends: 45 [2020-10-19 17:58:58,229 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2020-10-19 17:58:58,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2020-10-19 17:58:58,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 41. [2020-10-19 17:58:58,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2020-10-19 17:58:58,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 45 transitions. [2020-10-19 17:58:58,234 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 45 transitions. Word has length 14 [2020-10-19 17:58:58,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 17:58:58,235 INFO L481 AbstractCegarLoop]: Abstraction has 41 states and 45 transitions. [2020-10-19 17:58:58,235 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-19 17:58:58,235 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 45 transitions. [2020-10-19 17:58:58,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-19 17:58:58,236 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 17:58:58,236 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 17:58:58,637 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3,6 cvc4 --incremental --print-success --lang smt --rewrite-divk [2020-10-19 17:58:58,638 INFO L429 AbstractCegarLoop]: === Iteration 5 === [SelectionSortErr6REQUIRES_VIOLATION, SelectionSortErr1REQUIRES_VIOLATION, SelectionSortErr7REQUIRES_VIOLATION, SelectionSortErr10REQUIRES_VIOLATION, SelectionSortErr5REQUIRES_VIOLATION, SelectionSortErr0REQUIRES_VIOLATION, SelectionSortErr11REQUIRES_VIOLATION, SelectionSortErr9REQUIRES_VIOLATION, SelectionSortErr4REQUIRES_VIOLATION, SelectionSortErr2REQUIRES_VIOLATION, SelectionSortErr8REQUIRES_VIOLATION, SelectionSortErr3REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION]=== [2020-10-19 17:58:58,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 17:58:58,638 INFO L82 PathProgramCache]: Analyzing trace with hash 505832910, now seen corresponding path program 1 times [2020-10-19 17:58:58,639 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-19 17:58:58,640 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1888446859] [2020-10-19 17:58:58,640 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 [2020-10-19 17:58:58,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 17:58:58,749 INFO L263 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-19 17:58:58,751 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 17:58:58,781 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 17:58:58,782 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-19 17:58:58,794 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1888446859] [2020-10-19 17:58:58,794 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: no int: (_ BitVec 32) [2020-10-19 17:58:58,794 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1753114061] [2020-10-19 17:58:58,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 8 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2020-10-19 17:58:58,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 17:58:58,965 INFO L263 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-19 17:58:58,966 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 17:58:58,971 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 17:58:58,971 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-19 17:58:59,014 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 17:58:59,015 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-19 17:58:59,015 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2020-10-19 17:58:59,015 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1115641695] [2020-10-19 17:58:59,016 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-19 17:58:59,016 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-19 17:58:59,016 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-19 17:58:59,016 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2020-10-19 17:58:59,017 INFO L87 Difference]: Start difference. First operand 41 states and 45 transitions. Second operand 8 states. [2020-10-19 17:58:59,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 17:58:59,109 INFO L93 Difference]: Finished difference Result 51 states and 55 transitions. [2020-10-19 17:58:59,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-19 17:58:59,110 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 14 [2020-10-19 17:58:59,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 17:58:59,111 INFO L225 Difference]: With dead ends: 51 [2020-10-19 17:58:59,112 INFO L226 Difference]: Without dead ends: 51 [2020-10-19 17:58:59,112 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2020-10-19 17:58:59,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2020-10-19 17:58:59,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 47. [2020-10-19 17:58:59,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2020-10-19 17:58:59,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 51 transitions. [2020-10-19 17:58:59,118 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 51 transitions. Word has length 14 [2020-10-19 17:58:59,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 17:58:59,118 INFO L481 AbstractCegarLoop]: Abstraction has 47 states and 51 transitions. [2020-10-19 17:58:59,118 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-19 17:58:59,119 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 51 transitions. [2020-10-19 17:58:59,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-19 17:58:59,119 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 17:58:59,120 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 17:58:59,520 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 mathsat -unsat_core_generation=3,8 cvc4 --incremental --print-success --lang smt --rewrite-divk [2020-10-19 17:58:59,521 INFO L429 AbstractCegarLoop]: === Iteration 6 === [SelectionSortErr6REQUIRES_VIOLATION, SelectionSortErr1REQUIRES_VIOLATION, SelectionSortErr7REQUIRES_VIOLATION, SelectionSortErr10REQUIRES_VIOLATION, SelectionSortErr5REQUIRES_VIOLATION, SelectionSortErr0REQUIRES_VIOLATION, SelectionSortErr11REQUIRES_VIOLATION, SelectionSortErr9REQUIRES_VIOLATION, SelectionSortErr4REQUIRES_VIOLATION, SelectionSortErr2REQUIRES_VIOLATION, SelectionSortErr8REQUIRES_VIOLATION, SelectionSortErr3REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION]=== [2020-10-19 17:58:59,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 17:58:59,523 INFO L82 PathProgramCache]: Analyzing trace with hash -303513716, now seen corresponding path program 1 times [2020-10-19 17:58:59,523 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-19 17:58:59,524 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1219022260] [2020-10-19 17:58:59,524 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 [2020-10-19 17:58:59,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 17:58:59,604 INFO L263 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 10 conjunts are in the unsatisfiable core [2020-10-19 17:58:59,606 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 17:58:59,637 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 8 treesize of output 7 [2020-10-19 17:58:59,638 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-19 17:58:59,656 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-19 17:58:59,657 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-10-19 17:58:59,657 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:23, output treesize:22 [2020-10-19 17:58:59,770 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 17:58:59,770 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-19 17:59:00,218 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 17:59:00,219 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1219022260] [2020-10-19 17:59:00,219 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-19 17:59:00,219 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2020-10-19 17:59:00,219 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [659339114] [2020-10-19 17:59:00,220 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-19 17:59:00,220 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-19 17:59:00,220 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-19 17:59:00,221 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2020-10-19 17:59:00,221 INFO L87 Difference]: Start difference. First operand 47 states and 51 transitions. Second operand 10 states. [2020-10-19 17:59:00,570 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 32 [2020-10-19 17:59:00,764 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 28 [2020-10-19 17:59:01,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 17:59:01,504 INFO L93 Difference]: Finished difference Result 67 states and 74 transitions. [2020-10-19 17:59:01,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-19 17:59:01,506 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 14 [2020-10-19 17:59:01,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 17:59:01,508 INFO L225 Difference]: With dead ends: 67 [2020-10-19 17:59:01,508 INFO L226 Difference]: Without dead ends: 67 [2020-10-19 17:59:01,508 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=78, Invalid=132, Unknown=0, NotChecked=0, Total=210 [2020-10-19 17:59:01,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2020-10-19 17:59:01,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 59. [2020-10-19 17:59:01,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2020-10-19 17:59:01,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 66 transitions. [2020-10-19 17:59:01,515 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 66 transitions. Word has length 14 [2020-10-19 17:59:01,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 17:59:01,516 INFO L481 AbstractCegarLoop]: Abstraction has 59 states and 66 transitions. [2020-10-19 17:59:01,516 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-19 17:59:01,516 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 66 transitions. [2020-10-19 17:59:01,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-19 17:59:01,517 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 17:59:01,517 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 17:59:01,720 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 mathsat -unsat_core_generation=3 [2020-10-19 17:59:01,721 INFO L429 AbstractCegarLoop]: === Iteration 7 === [SelectionSortErr6REQUIRES_VIOLATION, SelectionSortErr1REQUIRES_VIOLATION, SelectionSortErr7REQUIRES_VIOLATION, SelectionSortErr10REQUIRES_VIOLATION, SelectionSortErr5REQUIRES_VIOLATION, SelectionSortErr0REQUIRES_VIOLATION, SelectionSortErr11REQUIRES_VIOLATION, SelectionSortErr9REQUIRES_VIOLATION, SelectionSortErr4REQUIRES_VIOLATION, SelectionSortErr2REQUIRES_VIOLATION, SelectionSortErr8REQUIRES_VIOLATION, SelectionSortErr3REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION]=== [2020-10-19 17:59:01,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 17:59:01,722 INFO L82 PathProgramCache]: Analyzing trace with hash 912095476, now seen corresponding path program 1 times [2020-10-19 17:59:01,722 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-19 17:59:01,723 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [688866200] [2020-10-19 17:59:01,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 10 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with mathsat -unsat_core_generation=3 [2020-10-19 17:59:01,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 17:59:01,813 INFO L263 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 5 conjunts are in the unsatisfiable core [2020-10-19 17:59:01,815 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 17:59:01,838 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-19 17:59:01,839 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-19 17:59:01,904 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-19 17:59:01,905 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [688866200] [2020-10-19 17:59:01,905 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-19 17:59:01,905 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2020-10-19 17:59:01,905 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [973062010] [2020-10-19 17:59:01,906 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-19 17:59:01,906 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-19 17:59:01,906 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-19 17:59:01,906 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-10-19 17:59:01,907 INFO L87 Difference]: Start difference. First operand 59 states and 66 transitions. Second operand 8 states. [2020-10-19 17:59:02,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 17:59:02,120 INFO L93 Difference]: Finished difference Result 67 states and 73 transitions. [2020-10-19 17:59:02,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-19 17:59:02,121 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 18 [2020-10-19 17:59:02,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 17:59:02,123 INFO L225 Difference]: With dead ends: 67 [2020-10-19 17:59:02,124 INFO L226 Difference]: Without dead ends: 67 [2020-10-19 17:59:02,124 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2020-10-19 17:59:02,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2020-10-19 17:59:02,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 64. [2020-10-19 17:59:02,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64 states. [2020-10-19 17:59:02,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 71 transitions. [2020-10-19 17:59:02,141 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 71 transitions. Word has length 18 [2020-10-19 17:59:02,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 17:59:02,142 INFO L481 AbstractCegarLoop]: Abstraction has 64 states and 71 transitions. [2020-10-19 17:59:02,142 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-19 17:59:02,145 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 71 transitions. [2020-10-19 17:59:02,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-19 17:59:02,146 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 17:59:02,146 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 17:59:02,366 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 mathsat -unsat_core_generation=3 [2020-10-19 17:59:02,366 INFO L429 AbstractCegarLoop]: === Iteration 8 === [SelectionSortErr6REQUIRES_VIOLATION, SelectionSortErr1REQUIRES_VIOLATION, SelectionSortErr7REQUIRES_VIOLATION, SelectionSortErr10REQUIRES_VIOLATION, SelectionSortErr5REQUIRES_VIOLATION, SelectionSortErr0REQUIRES_VIOLATION, SelectionSortErr11REQUIRES_VIOLATION, SelectionSortErr9REQUIRES_VIOLATION, SelectionSortErr4REQUIRES_VIOLATION, SelectionSortErr2REQUIRES_VIOLATION, SelectionSortErr8REQUIRES_VIOLATION, SelectionSortErr3REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION]=== [2020-10-19 17:59:02,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 17:59:02,367 INFO L82 PathProgramCache]: Analyzing trace with hash 1170260914, now seen corresponding path program 1 times [2020-10-19 17:59:02,368 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-19 17:59:02,368 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [318858373] [2020-10-19 17:59:02,368 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 [2020-10-19 17:59:02,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 17:59:02,458 INFO L263 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 14 conjunts are in the unsatisfiable core [2020-10-19 17:59:02,460 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 17:59:02,482 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 8 treesize of output 7 [2020-10-19 17:59:02,483 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-19 17:59:02,500 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-19 17:59:02,501 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [318858373] [2020-10-19 17:59:02,501 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: no int: (_ BitVec 32) [2020-10-19 17:59:02,501 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [508837796] [2020-10-19 17:59:02,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 12 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2020-10-19 17:59:02,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 17:59:02,668 INFO L263 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 9 conjunts are in the unsatisfiable core [2020-10-19 17:59:02,676 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 17:59:02,795 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 17:59:02,795 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-19 17:59:03,030 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 17:59:03,031 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-19 17:59:03,031 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2020-10-19 17:59:03,031 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1014115781] [2020-10-19 17:59:03,031 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-19 17:59:03,032 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-19 17:59:03,032 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-19 17:59:03,032 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=137, Unknown=0, NotChecked=0, Total=182 [2020-10-19 17:59:03,032 INFO L87 Difference]: Start difference. First operand 64 states and 71 transitions. Second operand 14 states. [2020-10-19 17:59:03,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 17:59:03,514 INFO L93 Difference]: Finished difference Result 72 states and 78 transitions. [2020-10-19 17:59:03,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-19 17:59:03,514 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 18 [2020-10-19 17:59:03,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 17:59:03,517 INFO L225 Difference]: With dead ends: 72 [2020-10-19 17:59:03,517 INFO L226 Difference]: Without dead ends: 72 [2020-10-19 17:59:03,518 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=79, Invalid=227, Unknown=0, NotChecked=0, Total=306 [2020-10-19 17:59:03,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2020-10-19 17:59:03,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 64. [2020-10-19 17:59:03,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64 states. [2020-10-19 17:59:03,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 71 transitions. [2020-10-19 17:59:03,523 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 71 transitions. Word has length 18 [2020-10-19 17:59:03,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 17:59:03,524 INFO L481 AbstractCegarLoop]: Abstraction has 64 states and 71 transitions. [2020-10-19 17:59:03,524 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-19 17:59:03,524 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 71 transitions. [2020-10-19 17:59:03,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-10-19 17:59:03,525 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 17:59:03,525 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] [2020-10-19 17:59:03,928 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 cvc4 --incremental --print-success --lang smt --rewrite-divk,11 mathsat -unsat_core_generation=3 [2020-10-19 17:59:03,928 INFO L429 AbstractCegarLoop]: === Iteration 9 === [SelectionSortErr6REQUIRES_VIOLATION, SelectionSortErr1REQUIRES_VIOLATION, SelectionSortErr7REQUIRES_VIOLATION, SelectionSortErr10REQUIRES_VIOLATION, SelectionSortErr5REQUIRES_VIOLATION, SelectionSortErr0REQUIRES_VIOLATION, SelectionSortErr11REQUIRES_VIOLATION, SelectionSortErr9REQUIRES_VIOLATION, SelectionSortErr4REQUIRES_VIOLATION, SelectionSortErr2REQUIRES_VIOLATION, SelectionSortErr8REQUIRES_VIOLATION, SelectionSortErr3REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION]=== [2020-10-19 17:59:03,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 17:59:03,929 INFO L82 PathProgramCache]: Analyzing trace with hash 349735848, now seen corresponding path program 1 times [2020-10-19 17:59:03,930 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-19 17:59:03,930 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1950455885] [2020-10-19 17:59:03,930 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 [2020-10-19 17:59:04,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 17:59:04,016 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 7 conjunts are in the unsatisfiable core [2020-10-19 17:59:04,017 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 17:59:04,038 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 [2020-10-19 17:59:04,039 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-19 17:59:04,041 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-19 17:59:04,042 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-10-19 17:59:04,042 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2020-10-19 17:59:04,108 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-10-19 17:59:04,109 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 39 [2020-10-19 17:59:04,110 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-19 17:59:04,125 INFO L625 ElimStorePlain]: treesize reduction 10, result has 60.0 percent of original size [2020-10-19 17:59:04,127 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-19 17:59:04,130 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-19 17:59:04,130 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:17, output treesize:15 [2020-10-19 17:59:04,131 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-19 17:59:04,143 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-19 17:59:04,164 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-19 17:59:04,181 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-19 17:59:04,204 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-19 17:59:04,228 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-19 17:59:04,229 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-19 17:59:06,331 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-19 17:59:06,331 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1950455885] [2020-10-19 17:59:06,331 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-19 17:59:06,331 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 4] imperfect sequences [] total 8 [2020-10-19 17:59:06,332 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [210473034] [2020-10-19 17:59:06,332 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-19 17:59:06,332 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-19 17:59:06,332 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-19 17:59:06,333 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=50, Unknown=1, NotChecked=0, Total=72 [2020-10-19 17:59:06,333 INFO L87 Difference]: Start difference. First operand 64 states and 71 transitions. Second operand 9 states. [2020-10-19 17:59:06,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 17:59:06,642 INFO L93 Difference]: Finished difference Result 63 states and 70 transitions. [2020-10-19 17:59:06,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-19 17:59:06,643 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 20 [2020-10-19 17:59:06,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 17:59:06,644 INFO L225 Difference]: With dead ends: 63 [2020-10-19 17:59:06,644 INFO L226 Difference]: Without dead ends: 48 [2020-10-19 17:59:06,645 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 28 SyntacticMatches, 5 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=34, Invalid=75, Unknown=1, NotChecked=0, Total=110 [2020-10-19 17:59:06,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2020-10-19 17:59:06,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2020-10-19 17:59:06,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2020-10-19 17:59:06,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 53 transitions. [2020-10-19 17:59:06,651 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 53 transitions. Word has length 20 [2020-10-19 17:59:06,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 17:59:06,653 INFO L481 AbstractCegarLoop]: Abstraction has 48 states and 53 transitions. [2020-10-19 17:59:06,654 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-19 17:59:06,654 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 53 transitions. [2020-10-19 17:59:06,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-19 17:59:06,656 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 17:59:06,657 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 17:59:06,868 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 mathsat -unsat_core_generation=3 [2020-10-19 17:59:06,869 INFO L429 AbstractCegarLoop]: === Iteration 10 === [SelectionSortErr6REQUIRES_VIOLATION, SelectionSortErr1REQUIRES_VIOLATION, SelectionSortErr7REQUIRES_VIOLATION, SelectionSortErr10REQUIRES_VIOLATION, SelectionSortErr5REQUIRES_VIOLATION, SelectionSortErr0REQUIRES_VIOLATION, SelectionSortErr11REQUIRES_VIOLATION, SelectionSortErr9REQUIRES_VIOLATION, SelectionSortErr4REQUIRES_VIOLATION, SelectionSortErr2REQUIRES_VIOLATION, SelectionSortErr8REQUIRES_VIOLATION, SelectionSortErr3REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION]=== [2020-10-19 17:59:06,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 17:59:06,869 INFO L82 PathProgramCache]: Analyzing trace with hash 1033773173, now seen corresponding path program 2 times [2020-10-19 17:59:06,870 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-19 17:59:06,871 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1031277121] [2020-10-19 17:59:06,871 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 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 [2020-10-19 17:59:06,962 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2020-10-19 17:59:06,962 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-19 17:59:06,964 INFO L263 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 12 conjunts are in the unsatisfiable core [2020-10-19 17:59:06,966 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 17:59:06,993 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 8 treesize of output 7 [2020-10-19 17:59:06,994 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-19 17:59:07,009 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-19 17:59:07,010 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1031277121] [2020-10-19 17:59:07,010 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: no int: (_ BitVec 32) [2020-10-19 17:59:07,011 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1990481359] [2020-10-19 17:59:07,011 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 15 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2020-10-19 17:59:07,216 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2020-10-19 17:59:07,216 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-19 17:59:07,217 INFO L263 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-19 17:59:07,219 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 17:59:07,300 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-10-19 17:59:07,300 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-19 17:59:07,521 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-10-19 17:59:07,522 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-19 17:59:07,522 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2020-10-19 17:59:07,522 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1163714487] [2020-10-19 17:59:07,523 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-19 17:59:07,523 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-19 17:59:07,523 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-19 17:59:07,523 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-10-19 17:59:07,523 INFO L87 Difference]: Start difference. First operand 48 states and 53 transitions. Second operand 10 states. [2020-10-19 17:59:08,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 17:59:08,302 INFO L93 Difference]: Finished difference Result 88 states and 97 transitions. [2020-10-19 17:59:08,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-19 17:59:08,305 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 22 [2020-10-19 17:59:08,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 17:59:08,306 INFO L225 Difference]: With dead ends: 88 [2020-10-19 17:59:08,306 INFO L226 Difference]: Without dead ends: 88 [2020-10-19 17:59:08,306 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=64, Invalid=146, Unknown=0, NotChecked=0, Total=210 [2020-10-19 17:59:08,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2020-10-19 17:59:08,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 64. [2020-10-19 17:59:08,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64 states. [2020-10-19 17:59:08,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 77 transitions. [2020-10-19 17:59:08,312 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 77 transitions. Word has length 22 [2020-10-19 17:59:08,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 17:59:08,313 INFO L481 AbstractCegarLoop]: Abstraction has 64 states and 77 transitions. [2020-10-19 17:59:08,313 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-19 17:59:08,313 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 77 transitions. [2020-10-19 17:59:08,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-19 17:59:08,314 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 17:59:08,314 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 17:59:08,717 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 mathsat -unsat_core_generation=3,15 cvc4 --incremental --print-success --lang smt --rewrite-divk [2020-10-19 17:59:08,718 INFO L429 AbstractCegarLoop]: === Iteration 11 === [SelectionSortErr6REQUIRES_VIOLATION, SelectionSortErr1REQUIRES_VIOLATION, SelectionSortErr7REQUIRES_VIOLATION, SelectionSortErr10REQUIRES_VIOLATION, SelectionSortErr5REQUIRES_VIOLATION, SelectionSortErr0REQUIRES_VIOLATION, SelectionSortErr11REQUIRES_VIOLATION, SelectionSortErr9REQUIRES_VIOLATION, SelectionSortErr4REQUIRES_VIOLATION, SelectionSortErr2REQUIRES_VIOLATION, SelectionSortErr8REQUIRES_VIOLATION, SelectionSortErr3REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION]=== [2020-10-19 17:59:08,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 17:59:08,719 INFO L82 PathProgramCache]: Analyzing trace with hash 1033773219, now seen corresponding path program 1 times [2020-10-19 17:59:08,720 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-19 17:59:08,720 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1043033411] [2020-10-19 17:59:08,720 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 [2020-10-19 17:59:08,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 17:59:08,801 INFO L263 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 16 conjunts are in the unsatisfiable core [2020-10-19 17:59:08,802 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 17:59:08,828 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 8 treesize of output 7 [2020-10-19 17:59:08,829 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-19 17:59:08,845 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-19 17:59:08,846 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1043033411] [2020-10-19 17:59:08,846 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: no int: (_ BitVec 32) [2020-10-19 17:59:08,846 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [723427162] [2020-10-19 17:59:08,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 17 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2020-10-19 17:59:09,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 17:59:09,031 INFO L263 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 18 conjunts are in the unsatisfiable core [2020-10-19 17:59:09,032 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 17:59:09,052 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 8 treesize of output 7 [2020-10-19 17:59:09,052 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-19 17:59:09,078 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-19 17:59:09,079 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-10-19 17:59:09,079 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:23, output treesize:22 [2020-10-19 17:59:09,385 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 17:59:09,385 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-19 17:59:10,428 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 17:59:10,428 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-19 17:59:10,429 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9] total 18 [2020-10-19 17:59:10,429 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1567277695] [2020-10-19 17:59:10,429 INFO L461 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-10-19 17:59:10,429 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-19 17:59:10,430 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-10-19 17:59:10,430 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=275, Unknown=0, NotChecked=0, Total=342 [2020-10-19 17:59:10,430 INFO L87 Difference]: Start difference. First operand 64 states and 77 transitions. Second operand 19 states. [2020-10-19 17:59:11,788 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 26 [2020-10-19 17:59:13,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 17:59:13,439 INFO L93 Difference]: Finished difference Result 117 states and 129 transitions. [2020-10-19 17:59:13,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-19 17:59:13,441 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 22 [2020-10-19 17:59:13,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 17:59:13,442 INFO L225 Difference]: With dead ends: 117 [2020-10-19 17:59:13,442 INFO L226 Difference]: Without dead ends: 117 [2020-10-19 17:59:13,443 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 32 SyntacticMatches, 1 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 137 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=142, Invalid=614, Unknown=0, NotChecked=0, Total=756 [2020-10-19 17:59:13,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2020-10-19 17:59:13,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 79. [2020-10-19 17:59:13,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 79 states. [2020-10-19 17:59:13,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 97 transitions. [2020-10-19 17:59:13,449 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 97 transitions. Word has length 22 [2020-10-19 17:59:13,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 17:59:13,450 INFO L481 AbstractCegarLoop]: Abstraction has 79 states and 97 transitions. [2020-10-19 17:59:13,450 INFO L482 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-10-19 17:59:13,450 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 97 transitions. [2020-10-19 17:59:13,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-10-19 17:59:13,451 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 17:59:13,451 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 17:59:13,851 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 mathsat -unsat_core_generation=3,17 cvc4 --incremental --print-success --lang smt --rewrite-divk [2020-10-19 17:59:13,852 INFO L429 AbstractCegarLoop]: === Iteration 12 === [SelectionSortErr6REQUIRES_VIOLATION, SelectionSortErr1REQUIRES_VIOLATION, SelectionSortErr7REQUIRES_VIOLATION, SelectionSortErr10REQUIRES_VIOLATION, SelectionSortErr5REQUIRES_VIOLATION, SelectionSortErr0REQUIRES_VIOLATION, SelectionSortErr11REQUIRES_VIOLATION, SelectionSortErr9REQUIRES_VIOLATION, SelectionSortErr4REQUIRES_VIOLATION, SelectionSortErr2REQUIRES_VIOLATION, SelectionSortErr8REQUIRES_VIOLATION, SelectionSortErr3REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION]=== [2020-10-19 17:59:13,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 17:59:13,853 INFO L82 PathProgramCache]: Analyzing trace with hash 1982198736, now seen corresponding path program 1 times [2020-10-19 17:59:13,854 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-19 17:59:13,855 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1416603867] [2020-10-19 17:59:13,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 18 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with mathsat -unsat_core_generation=3 [2020-10-19 17:59:13,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 17:59:13,956 INFO L263 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 15 conjunts are in the unsatisfiable core [2020-10-19 17:59:13,958 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 17:59:13,989 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 8 treesize of output 7 [2020-10-19 17:59:13,989 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-19 17:59:14,008 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-19 17:59:14,009 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1416603867] [2020-10-19 17:59:14,009 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: no int: (_ BitVec 32) [2020-10-19 17:59:14,010 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [870327408] [2020-10-19 17:59:14,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 19 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2020-10-19 17:59:14,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 17:59:14,255 INFO L263 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 18 conjunts are in the unsatisfiable core [2020-10-19 17:59:14,257 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 17:59:14,265 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 8 treesize of output 7 [2020-10-19 17:59:14,265 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-19 17:59:14,283 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-19 17:59:14,283 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-10-19 17:59:14,284 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:23, output treesize:22 [2020-10-19 17:59:14,544 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 17:59:14,544 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-19 17:59:15,498 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 17:59:15,498 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-19 17:59:15,499 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9] total 18 [2020-10-19 17:59:15,499 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1373238693] [2020-10-19 17:59:15,499 INFO L461 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-10-19 17:59:15,499 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-19 17:59:15,500 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-10-19 17:59:15,500 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=269, Unknown=0, NotChecked=0, Total=342 [2020-10-19 17:59:15,500 INFO L87 Difference]: Start difference. First operand 79 states and 97 transitions. Second operand 19 states. [2020-10-19 17:59:17,834 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 36 [2020-10-19 17:59:19,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 17:59:19,289 INFO L93 Difference]: Finished difference Result 166 states and 187 transitions. [2020-10-19 17:59:19,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-10-19 17:59:19,291 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 23 [2020-10-19 17:59:19,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 17:59:19,292 INFO L225 Difference]: With dead ends: 166 [2020-10-19 17:59:19,292 INFO L226 Difference]: Without dead ends: 166 [2020-10-19 17:59:19,294 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 34 SyntacticMatches, 1 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 180 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=186, Invalid=744, Unknown=0, NotChecked=0, Total=930 [2020-10-19 17:59:19,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2020-10-19 17:59:19,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 114. [2020-10-19 17:59:19,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 114 states. [2020-10-19 17:59:19,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 142 transitions. [2020-10-19 17:59:19,309 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 142 transitions. Word has length 23 [2020-10-19 17:59:19,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 17:59:19,310 INFO L481 AbstractCegarLoop]: Abstraction has 114 states and 142 transitions. [2020-10-19 17:59:19,310 INFO L482 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-10-19 17:59:19,310 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 142 transitions. [2020-10-19 17:59:19,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-10-19 17:59:19,311 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 17:59:19,311 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 17:59:19,716 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 mathsat -unsat_core_generation=3,19 cvc4 --incremental --print-success --lang smt --rewrite-divk [2020-10-19 17:59:19,716 INFO L429 AbstractCegarLoop]: === Iteration 13 === [SelectionSortErr6REQUIRES_VIOLATION, SelectionSortErr1REQUIRES_VIOLATION, SelectionSortErr7REQUIRES_VIOLATION, SelectionSortErr10REQUIRES_VIOLATION, SelectionSortErr5REQUIRES_VIOLATION, SelectionSortErr0REQUIRES_VIOLATION, SelectionSortErr11REQUIRES_VIOLATION, SelectionSortErr9REQUIRES_VIOLATION, SelectionSortErr4REQUIRES_VIOLATION, SelectionSortErr2REQUIRES_VIOLATION, SelectionSortErr8REQUIRES_VIOLATION, SelectionSortErr3REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION]=== [2020-10-19 17:59:19,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 17:59:19,717 INFO L82 PathProgramCache]: Analyzing trace with hash 1198710709, now seen corresponding path program 1 times [2020-10-19 17:59:19,718 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-19 17:59:19,718 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1044814215] [2020-10-19 17:59:19,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 20 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with mathsat -unsat_core_generation=3 [2020-10-19 17:59:19,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 17:59:19,841 INFO L263 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 18 conjunts are in the unsatisfiable core [2020-10-19 17:59:19,842 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 17:59:19,858 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 8 treesize of output 7 [2020-10-19 17:59:19,858 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-19 17:59:19,876 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-19 17:59:19,877 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-10-19 17:59:19,877 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:20, output treesize:19 [2020-10-19 17:59:20,217 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-10-19 17:59:20,217 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-19 17:59:21,418 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-10-19 17:59:21,418 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1044814215] [2020-10-19 17:59:21,419 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-19 17:59:21,419 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 17 [2020-10-19 17:59:21,419 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [15390524] [2020-10-19 17:59:21,420 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-10-19 17:59:21,420 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-19 17:59:21,420 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-10-19 17:59:21,420 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=252, Unknown=0, NotChecked=0, Total=306 [2020-10-19 17:59:21,421 INFO L87 Difference]: Start difference. First operand 114 states and 142 transitions. Second operand 18 states. [2020-10-19 17:59:22,257 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 36 [2020-10-19 17:59:22,842 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 47 [2020-10-19 17:59:23,119 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 43 [2020-10-19 17:59:23,489 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 46 [2020-10-19 17:59:24,025 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 50 [2020-10-19 17:59:24,773 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 51 [2020-10-19 17:59:25,634 WARN L193 SmtUtils]: Spent 319.00 ms on a formula simplification that was a NOOP. DAG size: 55 [2020-10-19 17:59:26,148 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 47 [2020-10-19 17:59:26,530 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 43 [2020-10-19 17:59:27,072 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 42 [2020-10-19 17:59:27,416 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 37 [2020-10-19 17:59:27,892 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 31 [2020-10-19 17:59:28,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 17:59:28,284 INFO L93 Difference]: Finished difference Result 237 states and 295 transitions. [2020-10-19 17:59:28,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-10-19 17:59:28,286 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 27 [2020-10-19 17:59:28,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 17:59:28,287 INFO L225 Difference]: With dead ends: 237 [2020-10-19 17:59:28,288 INFO L226 Difference]: Without dead ends: 237 [2020-10-19 17:59:28,289 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 253 ImplicationChecksByTransitivity, 6.4s TimeCoverageRelationStatistics Valid=296, Invalid=964, Unknown=0, NotChecked=0, Total=1260 [2020-10-19 17:59:28,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 237 states. [2020-10-19 17:59:28,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 237 to 184. [2020-10-19 17:59:28,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 184 states. [2020-10-19 17:59:28,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 243 transitions. [2020-10-19 17:59:28,296 INFO L78 Accepts]: Start accepts. Automaton has 184 states and 243 transitions. Word has length 27 [2020-10-19 17:59:28,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 17:59:28,297 INFO L481 AbstractCegarLoop]: Abstraction has 184 states and 243 transitions. [2020-10-19 17:59:28,297 INFO L482 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-10-19 17:59:28,297 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 243 transitions. [2020-10-19 17:59:28,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-10-19 17:59:28,298 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 17:59:28,298 INFO L422 BasicCegarLoop]: trace histogram [5, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 17:59:28,509 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 mathsat -unsat_core_generation=3 [2020-10-19 17:59:28,510 INFO L429 AbstractCegarLoop]: === Iteration 14 === [SelectionSortErr6REQUIRES_VIOLATION, SelectionSortErr1REQUIRES_VIOLATION, SelectionSortErr7REQUIRES_VIOLATION, SelectionSortErr10REQUIRES_VIOLATION, SelectionSortErr5REQUIRES_VIOLATION, SelectionSortErr0REQUIRES_VIOLATION, SelectionSortErr11REQUIRES_VIOLATION, SelectionSortErr9REQUIRES_VIOLATION, SelectionSortErr4REQUIRES_VIOLATION, SelectionSortErr2REQUIRES_VIOLATION, SelectionSortErr8REQUIRES_VIOLATION, SelectionSortErr3REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION]=== [2020-10-19 17:59:28,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 17:59:28,511 INFO L82 PathProgramCache]: Analyzing trace with hash 428447189, now seen corresponding path program 2 times [2020-10-19 17:59:28,511 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-19 17:59:28,512 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1954106986] [2020-10-19 17:59:28,512 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 21 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with mathsat -unsat_core_generation=3 [2020-10-19 17:59:28,606 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-10-19 17:59:28,606 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-19 17:59:28,609 INFO L263 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 14 conjunts are in the unsatisfiable core [2020-10-19 17:59:28,610 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 17:59:28,626 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 8 treesize of output 7 [2020-10-19 17:59:28,627 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-19 17:59:28,645 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-19 17:59:28,645 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-10-19 17:59:28,645 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:23, output treesize:22 [2020-10-19 17:59:28,923 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 17:59:28,923 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-19 17:59:29,568 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-19 17:59:32,386 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 17:59:32,387 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1954106986] [2020-10-19 17:59:32,387 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-19 17:59:32,387 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 10] total 18 [2020-10-19 17:59:32,387 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [400086941] [2020-10-19 17:59:32,388 INFO L461 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-10-19 17:59:32,388 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-19 17:59:32,388 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-10-19 17:59:32,388 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=98, Invalid=243, Unknown=1, NotChecked=0, Total=342 [2020-10-19 17:59:32,388 INFO L87 Difference]: Start difference. First operand 184 states and 243 transitions. Second operand 19 states. [2020-10-19 17:59:34,816 WARN L193 SmtUtils]: Spent 815.00 ms on a formula simplification that was a NOOP. DAG size: 73 [2020-10-19 17:59:35,861 WARN L193 SmtUtils]: Spent 642.00 ms on a formula simplification that was a NOOP. DAG size: 69 [2020-10-19 17:59:41,498 WARN L193 SmtUtils]: Spent 415.00 ms on a formula simplification that was a NOOP. DAG size: 55 [2020-10-19 17:59:44,792 WARN L193 SmtUtils]: Spent 368.00 ms on a formula simplification that was a NOOP. DAG size: 61 [2020-10-19 17:59:51,399 WARN L193 SmtUtils]: Spent 373.00 ms on a formula simplification that was a NOOP. DAG size: 50 [2020-10-19 17:59:56,044 WARN L193 SmtUtils]: Spent 292.00 ms on a formula simplification that was a NOOP. DAG size: 56 [2020-10-19 17:59:56,567 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 44 [2020-10-19 17:59:57,062 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 39 [2020-10-19 17:59:57,453 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 33 [2020-10-19 17:59:57,723 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 28 [2020-10-19 17:59:58,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 17:59:58,423 INFO L93 Difference]: Finished difference Result 214 states and 279 transitions. [2020-10-19 17:59:58,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-10-19 17:59:58,426 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 26 [2020-10-19 17:59:58,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 17:59:58,428 INFO L225 Difference]: With dead ends: 214 [2020-10-19 17:59:58,428 INFO L226 Difference]: Without dead ends: 214 [2020-10-19 17:59:58,429 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 249 ImplicationChecksByTransitivity, 20.1s TimeCoverageRelationStatistics Valid=375, Invalid=741, Unknown=6, NotChecked=0, Total=1122 [2020-10-19 17:59:58,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214 states. [2020-10-19 17:59:58,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214 to 208. [2020-10-19 17:59:58,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 208 states. [2020-10-19 17:59:58,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 273 transitions. [2020-10-19 17:59:58,435 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 273 transitions. Word has length 26 [2020-10-19 17:59:58,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 17:59:58,436 INFO L481 AbstractCegarLoop]: Abstraction has 208 states and 273 transitions. [2020-10-19 17:59:58,436 INFO L482 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-10-19 17:59:58,436 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 273 transitions. [2020-10-19 17:59:58,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-10-19 17:59:58,437 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 17:59:58,437 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 17:59:58,644 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 mathsat -unsat_core_generation=3 [2020-10-19 17:59:58,644 INFO L429 AbstractCegarLoop]: === Iteration 15 === [SelectionSortErr6REQUIRES_VIOLATION, SelectionSortErr1REQUIRES_VIOLATION, SelectionSortErr7REQUIRES_VIOLATION, SelectionSortErr10REQUIRES_VIOLATION, SelectionSortErr5REQUIRES_VIOLATION, SelectionSortErr0REQUIRES_VIOLATION, SelectionSortErr11REQUIRES_VIOLATION, SelectionSortErr9REQUIRES_VIOLATION, SelectionSortErr4REQUIRES_VIOLATION, SelectionSortErr2REQUIRES_VIOLATION, SelectionSortErr8REQUIRES_VIOLATION, SelectionSortErr3REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION]=== [2020-10-19 17:59:58,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 17:59:58,645 INFO L82 PathProgramCache]: Analyzing trace with hash -1494673666, now seen corresponding path program 1 times [2020-10-19 17:59:58,646 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-19 17:59:58,646 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1587312184] [2020-10-19 17:59:58,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 22 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 22 with mathsat -unsat_core_generation=3 [2020-10-19 17:59:58,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 17:59:58,743 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 15 conjunts are in the unsatisfiable core [2020-10-19 17:59:58,744 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 17:59:58,761 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 8 treesize of output 7 [2020-10-19 17:59:58,761 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-19 17:59:58,775 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-19 17:59:58,777 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1587312184] [2020-10-19 17:59:58,777 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: no int: (_ BitVec 32) [2020-10-19 17:59:58,777 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [982483220] [2020-10-19 17:59:58,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 23 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 23 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2020-10-19 17:59:58,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 17:59:58,998 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 13 conjunts are in the unsatisfiable core [2020-10-19 17:59:58,999 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 17:59:59,191 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 2 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 17:59:59,192 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-19 17:59:59,550 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 2 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 17:59:59,550 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-19 17:59:59,550 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 11] total 21 [2020-10-19 17:59:59,551 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1688082782] [2020-10-19 17:59:59,551 INFO L461 AbstractCegarLoop]: Interpolant automaton has 21 states [2020-10-19 17:59:59,551 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-19 17:59:59,551 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2020-10-19 17:59:59,551 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=349, Unknown=0, NotChecked=0, Total=420 [2020-10-19 17:59:59,552 INFO L87 Difference]: Start difference. First operand 208 states and 273 transitions. Second operand 21 states. [2020-10-19 18:00:00,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:00:00,491 INFO L93 Difference]: Finished difference Result 191 states and 234 transitions. [2020-10-19 18:00:00,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-19 18:00:00,492 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 28 [2020-10-19 18:00:00,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:00:00,494 INFO L225 Difference]: With dead ends: 191 [2020-10-19 18:00:00,494 INFO L226 Difference]: Without dead ends: 191 [2020-10-19 18:00:00,494 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 145 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=133, Invalid=623, Unknown=0, NotChecked=0, Total=756 [2020-10-19 18:00:00,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 191 states. [2020-10-19 18:00:00,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 191 to 187. [2020-10-19 18:00:00,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 187 states. [2020-10-19 18:00:00,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 234 transitions. [2020-10-19 18:00:00,500 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 234 transitions. Word has length 28 [2020-10-19 18:00:00,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:00:00,500 INFO L481 AbstractCegarLoop]: Abstraction has 187 states and 234 transitions. [2020-10-19 18:00:00,501 INFO L482 AbstractCegarLoop]: Interpolant automaton has 21 states. [2020-10-19 18:00:00,501 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 234 transitions. [2020-10-19 18:00:00,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-10-19 18:00:00,501 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:00:00,502 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 18:00:00,905 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 mathsat -unsat_core_generation=3,23 cvc4 --incremental --print-success --lang smt --rewrite-divk [2020-10-19 18:00:00,905 INFO L429 AbstractCegarLoop]: === Iteration 16 === [SelectionSortErr6REQUIRES_VIOLATION, SelectionSortErr1REQUIRES_VIOLATION, SelectionSortErr7REQUIRES_VIOLATION, SelectionSortErr10REQUIRES_VIOLATION, SelectionSortErr5REQUIRES_VIOLATION, SelectionSortErr0REQUIRES_VIOLATION, SelectionSortErr11REQUIRES_VIOLATION, SelectionSortErr9REQUIRES_VIOLATION, SelectionSortErr4REQUIRES_VIOLATION, SelectionSortErr2REQUIRES_VIOLATION, SelectionSortErr8REQUIRES_VIOLATION, SelectionSortErr3REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION]=== [2020-10-19 18:00:00,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:00:00,906 INFO L82 PathProgramCache]: Analyzing trace with hash 909712936, now seen corresponding path program 1 times [2020-10-19 18:00:00,907 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-19 18:00:00,907 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [177410235] [2020-10-19 18:00:00,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 24 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 24 with mathsat -unsat_core_generation=3 [2020-10-19 18:00:01,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:00:01,007 INFO L263 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 15 conjunts are in the unsatisfiable core [2020-10-19 18:00:01,008 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:00:01,038 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 8 treesize of output 7 [2020-10-19 18:00:01,038 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-19 18:00:01,053 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-19 18:00:01,054 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [177410235] [2020-10-19 18:00:01,054 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: no int: (_ BitVec 32) [2020-10-19 18:00:01,055 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [744098141] [2020-10-19 18:00:01,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 25 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 25 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2020-10-19 18:00:01,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:00:01,283 INFO L263 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 19 conjunts are in the unsatisfiable core [2020-10-19 18:00:01,284 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:00:01,294 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 8 treesize of output 7 [2020-10-19 18:00:01,295 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-19 18:00:01,312 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-19 18:00:01,312 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-10-19 18:00:01,312 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:23, output treesize:22 [2020-10-19 18:00:01,474 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: no int: (_ BitVec 32) [2020-10-19 18:00:01,475 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [998910398] [2020-10-19 18:00:01,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 26 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 26 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-19 18:00:01,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:00:01,596 INFO L263 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 15 conjunts are in the unsatisfiable core [2020-10-19 18:00:01,597 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:00:01,610 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 8 treesize of output 7 [2020-10-19 18:00:01,610 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-19 18:00:01,629 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-19 18:00:01,629 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: no int: (_ BitVec 32) [2020-10-19 18:00:01,630 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 0 imperfect interpolant sequences. [2020-10-19 18:00:01,630 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [] total 0 [2020-10-19 18:00:01,630 ERROR L205 FreeRefinementEngine]: Strategy WOLF failed to provide any proof altough trace is infeasible [2020-10-19 18:00:01,630 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-19 18:00:02,246 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 z3 -smt2 -in SMTLIB2_COMPLIANT=true,25 cvc4 --incremental --print-success --lang smt --rewrite-divk,24 mathsat -unsat_core_generation=3 [2020-10-19 18:00:02,261 WARN L238 ceAbstractionStarter]: Unable to decide correctness. Please check the following counterexample manually. [2020-10-19 18:00:02,262 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.10 06:00:02 BoogieIcfgContainer [2020-10-19 18:00:02,262 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-19 18:00:02,262 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-19 18:00:02,262 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-19 18:00:02,263 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-19 18:00:02,263 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 05:58:54" (3/4) ... [2020-10-19 18:00:02,266 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-10-19 18:00:02,267 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-19 18:00:02,268 INFO L168 Benchmark]: Toolchain (without parser) took 69017.73 ms. Allocated memory was 1.0 GB in the beginning and 1.4 GB in the end (delta: 331.4 MB). Free memory was 958.6 MB in the beginning and 1.0 GB in the end (delta: -54.5 MB). Peak memory consumption was 276.8 MB. Max. memory is 11.5 GB. [2020-10-19 18:00:02,269 INFO L168 Benchmark]: CDTParser took 0.32 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-10-19 18:00:02,269 INFO L168 Benchmark]: CACSL2BoogieTranslator took 747.40 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 123.2 MB). Free memory was 953.2 MB in the beginning and 1.1 GB in the end (delta: -142.8 MB). Peak memory consumption was 21.0 MB. Max. memory is 11.5 GB. [2020-10-19 18:00:02,269 INFO L168 Benchmark]: Boogie Preprocessor took 66.07 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2020-10-19 18:00:02,270 INFO L168 Benchmark]: RCFGBuilder took 866.60 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 53.6 MB). Peak memory consumption was 53.6 MB. Max. memory is 11.5 GB. [2020-10-19 18:00:02,270 INFO L168 Benchmark]: TraceAbstraction took 67320.42 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 208.1 MB). Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 29.3 MB). Peak memory consumption was 237.5 MB. Max. memory is 11.5 GB. [2020-10-19 18:00:02,270 INFO L168 Benchmark]: Witness Printer took 4.73 ms. Allocated memory is still 1.4 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2020-10-19 18:00:02,272 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 747.40 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 123.2 MB). Free memory was 953.2 MB in the beginning and 1.1 GB in the end (delta: -142.8 MB). Peak memory consumption was 21.0 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 66.07 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 866.60 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 53.6 MB). Peak memory consumption was 53.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 67320.42 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 208.1 MB). Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 29.3 MB). Peak memory consumption was 237.5 MB. Max. memory is 11.5 GB. * Witness Printer took 4.73 ms. Allocated memory is still 1.4 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 525]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: unable to decide satisfiability of path constraint. Possible FailurePath: [L530] int array_size = __VERIFIER_nondet_int(); [L531] COND FALSE !(array_size < 1 || array_size >= 2147483647 / sizeof(int)) [L534] int* numbers = (int*) __builtin_alloca (array_size * sizeof(int)); [L536] int i = 0; [L536] COND TRUE i < array_size [L538] numbers[i] = __VERIFIER_nondet_int() [L536] i++ [L536] COND TRUE i < array_size [L538] numbers[i] = __VERIFIER_nondet_int() [L536] i++ [L536] COND FALSE !(i < array_size) [L540] CALL SelectionSort(numbers, array_size) [L514] int i; [L515] i = 0 [L515] COND TRUE i < array_size - 1 [L517] int j, min, temp; [L518] min = i [L519] j = i+1 [L519] COND TRUE j < array_size [L521] EXPR a[j] [L521] EXPR a[min] [L521] COND TRUE a[j] < a[min] [L522] min = j [L519] ++j [L519] COND FALSE !(j < array_size) [L524] EXPR a[i] [L524] temp = a[i] [L525] a[min] - StatisticsResult: Ultimate Automizer benchmark data CFG has 10 procedures, 70 locations, 15 error locations. Started 1 CEGAR loops. VerificationResult: UNKNOWN, OverallTime: 67.2s, OverallIterations: 16, TraceHistogramMax: 5, AutomataDifference: 45.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 477 SDtfs, 1817 SDslu, 1919 SDs, 0 SdLazy, 2139 SolverSat, 298 SolverUnsat, 3 SolverUnknown, 0 SolverNotchecked, 17.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 686 GetRequests, 451 SyntacticMatches, 7 SemanticMatches, 228 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1085 ImplicationChecksByTransitivity, 38.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=208occurred in iteration=14, 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, 15 MinimizatonAttempts, 223 StatesRemovedByMinimization, 12 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 12.8s InterpolantComputationTime, 280 NumberOfCodeBlocks, 272 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 530 ConstructedInterpolants, 22 QuantifiedInterpolants, 125883 SizeOfPredicates, 67 NumberOfNonLiveVariables, 890 ConjunctsInSsa, 143 ConjunctsInUnsatCore, 30 InterpolantComputations, 14 PerfectInterpolantSequences, 34/148 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...