./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/array-memsafety/array01-alloca-2.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/array01-alloca-2.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 0e0283c2b515067609d1d09b2bc4afe3d1f1d910 ............................................................................................................................. 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/array01-alloca-2.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 0e0283c2b515067609d1d09b2bc4afe3d1f1d910 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 17:55:41,015 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-19 17:55:41,018 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-19 17:55:41,043 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-19 17:55:41,043 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-19 17:55:41,045 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-19 17:55:41,046 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-19 17:55:41,048 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-19 17:55:41,050 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-19 17:55:41,051 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-19 17:55:41,053 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-19 17:55:41,054 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-19 17:55:41,054 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-19 17:55:41,056 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-19 17:55:41,057 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-19 17:55:41,058 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-19 17:55:41,059 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-19 17:55:41,061 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-19 17:55:41,063 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-19 17:55:41,065 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-19 17:55:41,066 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-19 17:55:41,068 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-19 17:55:41,069 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-19 17:55:41,072 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-19 17:55:41,077 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-19 17:55:41,079 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-19 17:55:41,079 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-19 17:55:41,082 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-19 17:55:41,084 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-19 17:55:41,085 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-19 17:55:41,085 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-19 17:55:41,086 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-19 17:55:41,087 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-19 17:55:41,089 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-19 17:55:41,090 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-19 17:55:41,091 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-19 17:55:41,092 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-19 17:55:41,092 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-19 17:55:41,092 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-19 17:55:41,100 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-19 17:55:41,102 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-19 17:55:41,104 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2020-10-19 17:55:41,149 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-19 17:55:41,151 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-19 17:55:41,153 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-19 17:55:41,153 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-19 17:55:41,154 INFO L138 SettingsManager]: * Use SBE=true [2020-10-19 17:55:41,154 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-19 17:55:41,154 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-19 17:55:41,154 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-10-19 17:55:41,155 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-19 17:55:41,155 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-19 17:55:41,156 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-19 17:55:41,156 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-10-19 17:55:41,157 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-10-19 17:55:41,157 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2020-10-19 17:55:41,157 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-19 17:55:41,158 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-10-19 17:55:41,158 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-19 17:55:41,158 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-19 17:55:41,158 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-19 17:55:41,159 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-19 17:55:41,159 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-19 17:55:41,159 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-19 17:55:41,160 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-19 17:55:41,160 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-19 17:55:41,160 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-19 17:55:41,160 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-19 17:55:41,161 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-19 17:55:41,161 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-19 17:55:41,161 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 -> 0e0283c2b515067609d1d09b2bc4afe3d1f1d910 [2020-10-19 17:55:41,484 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-19 17:55:41,497 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-19 17:55:41,501 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-19 17:55:41,502 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-19 17:55:41,503 INFO L275 PluginConnector]: CDTParser initialized [2020-10-19 17:55:41,504 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-memsafety/array01-alloca-2.i [2020-10-19 17:55:41,564 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f103ca119/37d7f2f6a26a49dcb0860aaadbf6f5c5/FLAG82f171b26 [2020-10-19 17:55:42,092 INFO L306 CDTParser]: Found 1 translation units. [2020-10-19 17:55:42,092 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-memsafety/array01-alloca-2.i [2020-10-19 17:55:42,104 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f103ca119/37d7f2f6a26a49dcb0860aaadbf6f5c5/FLAG82f171b26 [2020-10-19 17:55:42,346 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f103ca119/37d7f2f6a26a49dcb0860aaadbf6f5c5 [2020-10-19 17:55:42,350 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-19 17:55:42,358 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-19 17:55:42,360 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-19 17:55:42,362 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-19 17:55:42,365 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-19 17:55:42,366 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 05:55:42" (1/1) ... [2020-10-19 17:55:42,370 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@53c9a0d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 05:55:42, skipping insertion in model container [2020-10-19 17:55:42,371 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 05:55:42" (1/1) ... [2020-10-19 17:55:42,380 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-19 17:55:42,435 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-19 17:55:42,801 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-19 17:55:42,814 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 17:55:42,815 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@528a2987 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 05:55:42, skipping insertion in model container [2020-10-19 17:55:42,815 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-19 17:55:42,816 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.preprocessor [2020-10-19 17:55:42,819 INFO L168 Benchmark]: Toolchain (without parser) took 465.65 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.1 MB). Free memory was 955.9 MB in the beginning and 1.1 GB in the end (delta: -175.3 MB). Peak memory consumption was 26.2 MB. Max. memory is 11.5 GB. [2020-10-19 17:55:42,820 INFO L168 Benchmark]: CDTParser took 0.26 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 17:55:42,821 INFO L168 Benchmark]: CACSL2BoogieTranslator took 455.02 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.1 MB). Free memory was 950.6 MB in the beginning and 1.1 GB in the end (delta: -180.6 MB). Peak memory consumption was 20.8 MB. Max. memory is 11.5 GB. [2020-10-19 17:55:42,824 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 455.02 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.1 MB). Free memory was 950.6 MB in the beginning and 1.1 GB in the end (delta: -180.6 MB). Peak memory consumption was 20.8 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 529]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.25-906a4fb [2020-10-19 17:55:44,523 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-19 17:55:44,527 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-19 17:55:44,571 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-19 17:55:44,571 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-19 17:55:44,584 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-19 17:55:44,586 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-19 17:55:44,588 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-19 17:55:44,592 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-19 17:55:44,594 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-19 17:55:44,595 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-19 17:55:44,596 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-19 17:55:44,597 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-19 17:55:44,604 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-19 17:55:44,605 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-19 17:55:44,606 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-19 17:55:44,607 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-19 17:55:44,608 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-19 17:55:44,609 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-19 17:55:44,611 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-19 17:55:44,612 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-19 17:55:44,614 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-19 17:55:44,615 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-19 17:55:44,616 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-19 17:55:44,618 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-19 17:55:44,619 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-19 17:55:44,619 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-19 17:55:44,620 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-19 17:55:44,621 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-19 17:55:44,622 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-19 17:55:44,622 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-19 17:55:44,623 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-19 17:55:44,623 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-19 17:55:44,624 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-19 17:55:44,625 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-19 17:55:44,626 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-19 17:55:44,626 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-19 17:55:44,627 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-19 17:55:44,627 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-19 17:55:44,628 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-19 17:55:44,629 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-19 17:55:44,630 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2020-10-19 17:55:44,652 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-19 17:55:44,652 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-19 17:55:44,653 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-19 17:55:44,654 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-19 17:55:44,654 INFO L138 SettingsManager]: * Use SBE=true [2020-10-19 17:55:44,654 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-19 17:55:44,655 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-19 17:55:44,655 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-10-19 17:55:44,655 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-19 17:55:44,655 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-19 17:55:44,656 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-19 17:55:44,656 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-10-19 17:55:44,656 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-10-19 17:55:44,657 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2020-10-19 17:55:44,657 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-19 17:55:44,657 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-10-19 17:55:44,657 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-10-19 17:55:44,658 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-10-19 17:55:44,658 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-19 17:55:44,658 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-19 17:55:44,659 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-19 17:55:44,659 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-19 17:55:44,659 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-19 17:55:44,659 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-19 17:55:44,660 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-19 17:55:44,660 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-19 17:55:44,660 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-19 17:55:44,661 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-10-19 17:55:44,661 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-10-19 17:55:44,661 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-19 17:55:44,661 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-19 17:55:44,662 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 -> 0e0283c2b515067609d1d09b2bc4afe3d1f1d910 [2020-10-19 17:55:44,998 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-19 17:55:45,018 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-19 17:55:45,023 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-19 17:55:45,027 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-19 17:55:45,028 INFO L275 PluginConnector]: CDTParser initialized [2020-10-19 17:55:45,029 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-memsafety/array01-alloca-2.i [2020-10-19 17:55:45,100 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a30e3de7c/994d31ad9d994cf58ce96c5e5e8cbcdb/FLAGb697a8549 [2020-10-19 17:55:45,641 INFO L306 CDTParser]: Found 1 translation units. [2020-10-19 17:55:45,644 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-memsafety/array01-alloca-2.i [2020-10-19 17:55:45,666 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a30e3de7c/994d31ad9d994cf58ce96c5e5e8cbcdb/FLAGb697a8549 [2020-10-19 17:55:45,906 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a30e3de7c/994d31ad9d994cf58ce96c5e5e8cbcdb [2020-10-19 17:55:45,909 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-19 17:55:45,917 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-19 17:55:45,919 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-19 17:55:45,920 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-19 17:55:45,924 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-19 17:55:45,926 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 05:55:45" (1/1) ... [2020-10-19 17:55:45,929 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3fd0373c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 05:55:45, skipping insertion in model container [2020-10-19 17:55:45,930 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 05:55:45" (1/1) ... [2020-10-19 17:55:45,939 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-19 17:55:45,999 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-19 17:55:46,437 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-19 17:55:46,452 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2020-10-19 17:55:46,466 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-19 17:55:46,530 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-19 17:55:46,542 INFO L203 MainTranslator]: Completed pre-run [2020-10-19 17:55:46,580 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-19 17:55:46,643 INFO L208 MainTranslator]: Completed translation [2020-10-19 17:55:46,644 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 05:55:46 WrapperNode [2020-10-19 17:55:46,644 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-19 17:55:46,645 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-19 17:55:46,645 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-19 17:55:46,646 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-19 17:55:46,659 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 05:55:46" (1/1) ... [2020-10-19 17:55:46,660 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 05:55:46" (1/1) ... [2020-10-19 17:55:46,677 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 05:55:46" (1/1) ... [2020-10-19 17:55:46,678 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 05:55:46" (1/1) ... [2020-10-19 17:55:46,696 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 05:55:46" (1/1) ... [2020-10-19 17:55:46,702 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 05:55:46" (1/1) ... [2020-10-19 17:55:46,706 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 05:55:46" (1/1) ... [2020-10-19 17:55:46,713 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-19 17:55:46,714 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-19 17:55:46,714 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-19 17:55:46,714 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-19 17:55:46,715 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 05:55:46" (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 17:55:46,796 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-19 17:55:46,796 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-19 17:55:46,797 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.setCurrentRoundingMode [2020-10-19 17:55:46,797 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2020-10-19 17:55:46,797 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2020-10-19 17:55:46,797 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2020-10-19 17:55:46,797 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2020-10-19 17:55:46,797 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2020-10-19 17:55:46,797 INFO L138 BoogieDeclarations]: Found implementation of procedure test_fun [2020-10-19 17:55:46,798 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-19 17:55:46,798 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-10-19 17:55:46,798 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-10-19 17:55:46,798 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-10-19 17:55:46,798 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-10-19 17:55:46,798 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-10-19 17:55:46,799 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-10-19 17:55:46,799 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-10-19 17:55:46,799 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-10-19 17:55:46,799 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-10-19 17:55:46,799 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-10-19 17:55:46,799 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-10-19 17:55:46,799 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-10-19 17:55:46,800 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-10-19 17:55:46,800 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-10-19 17:55:46,800 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-10-19 17:55:46,800 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-10-19 17:55:46,800 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2020-10-19 17:55:46,800 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2020-10-19 17:55:46,801 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2020-10-19 17:55:46,801 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2020-10-19 17:55:46,801 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2020-10-19 17:55:46,801 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-10-19 17:55:46,801 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-10-19 17:55:46,801 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-10-19 17:55:46,801 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-10-19 17:55:46,802 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-10-19 17:55:46,802 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-10-19 17:55:46,802 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-10-19 17:55:46,802 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-10-19 17:55:46,802 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-10-19 17:55:46,802 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-10-19 17:55:46,802 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-10-19 17:55:46,803 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-10-19 17:55:46,803 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-10-19 17:55:46,803 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-10-19 17:55:46,803 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-10-19 17:55:46,803 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-10-19 17:55:46,803 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-10-19 17:55:46,803 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-10-19 17:55:46,804 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-10-19 17:55:46,804 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-10-19 17:55:46,804 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-10-19 17:55:46,804 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-10-19 17:55:46,804 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-10-19 17:55:46,804 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-10-19 17:55:46,804 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-10-19 17:55:46,805 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-10-19 17:55:46,805 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-10-19 17:55:46,805 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-10-19 17:55:46,805 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-10-19 17:55:46,805 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-10-19 17:55:46,805 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-10-19 17:55:46,805 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-10-19 17:55:46,806 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-10-19 17:55:46,806 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-10-19 17:55:46,806 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-19 17:55:46,806 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-10-19 17:55:46,806 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-10-19 17:55:46,807 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-19 17:55:46,807 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-10-19 17:55:46,807 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-10-19 17:55:46,807 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-10-19 17:55:46,807 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2020-10-19 17:55:46,807 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-19 17:55:46,808 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-10-19 17:55:46,808 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2020-10-19 17:55:46,808 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-10-19 17:55:46,808 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-19 17:55:46,808 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2020-10-19 17:55:46,808 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-10-19 17:55:46,809 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-10-19 17:55:46,809 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-10-19 17:55:46,809 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-10-19 17:55:46,809 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-10-19 17:55:46,809 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-10-19 17:55:46,809 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-10-19 17:55:46,809 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-10-19 17:55:46,810 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-10-19 17:55:46,810 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-10-19 17:55:46,810 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-10-19 17:55:46,810 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-10-19 17:55:46,810 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-10-19 17:55:46,810 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-10-19 17:55:46,810 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-10-19 17:55:46,811 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-10-19 17:55:46,811 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-10-19 17:55:46,811 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-10-19 17:55:46,811 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-10-19 17:55:46,811 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-10-19 17:55:46,811 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-10-19 17:55:46,811 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-10-19 17:55:46,812 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-10-19 17:55:46,812 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-10-19 17:55:46,812 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-10-19 17:55:46,812 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-10-19 17:55:46,812 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-10-19 17:55:46,812 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-10-19 17:55:46,812 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-10-19 17:55:46,812 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-10-19 17:55:46,813 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-10-19 17:55:46,813 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-10-19 17:55:46,813 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-10-19 17:55:46,813 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-10-19 17:55:46,813 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-10-19 17:55:46,813 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-10-19 17:55:46,814 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-10-19 17:55:46,814 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-10-19 17:55:46,814 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-19 17:55:46,814 INFO L130 BoogieDeclarations]: Found specification of procedure test_fun [2020-10-19 17:55:46,814 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-10-19 17:55:46,814 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-10-19 17:55:46,814 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-19 17:55:46,814 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-19 17:55:46,815 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-19 17:55:46,815 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-19 17:55:46,815 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-19 17:55:46,815 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.setCurrentRoundingMode [2020-10-19 17:55:47,480 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-19 17:55:47,480 INFO L298 CfgBuilder]: Removed 3 assume(true) statements. [2020-10-19 17:55:47,482 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 05:55:47 BoogieIcfgContainer [2020-10-19 17:55:47,482 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-19 17:55:47,484 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-19 17:55:47,484 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-19 17:55:47,487 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-19 17:55:47,487 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.10 05:55:45" (1/3) ... [2020-10-19 17:55:47,488 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@bf51c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.10 05:55:47, skipping insertion in model container [2020-10-19 17:55:47,488 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 05:55:46" (2/3) ... [2020-10-19 17:55:47,489 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@bf51c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.10 05:55:47, skipping insertion in model container [2020-10-19 17:55:47,489 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 05:55:47" (3/3) ... [2020-10-19 17:55:47,491 INFO L111 eAbstractionObserver]: Analyzing ICFG array01-alloca-2.i [2020-10-19 17:55:47,502 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-19 17:55:47,510 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 9 error locations. [2020-10-19 17:55:47,524 INFO L253 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2020-10-19 17:55:47,544 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-19 17:55:47,544 INFO L378 AbstractCegarLoop]: Hoare is false [2020-10-19 17:55:47,545 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-19 17:55:47,545 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-19 17:55:47,545 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-19 17:55:47,545 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-19 17:55:47,546 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-19 17:55:47,546 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-19 17:55:47,561 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states. [2020-10-19 17:55:47,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-19 17:55:47,570 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 17:55:47,571 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 17:55:47,571 INFO L429 AbstractCegarLoop]: === Iteration 1 === [test_funErr4REQUIRES_VIOLATION, test_funErr2REQUIRES_VIOLATION, test_funErr3REQUIRES_VIOLATION, test_funErr1REQUIRES_VIOLATION, test_funErr5REQUIRES_VIOLATION, test_funErr0REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION]=== [2020-10-19 17:55:47,577 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 17:55:47,577 INFO L82 PathProgramCache]: Analyzing trace with hash -1920451558, now seen corresponding path program 1 times [2020-10-19 17:55:47,591 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-19 17:55:47,591 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1805391702] [2020-10-19 17:55:47,592 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 17:55:47,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 17:55:47,774 INFO L263 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 7 conjunts are in the unsatisfiable core [2020-10-19 17:55:47,780 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 17:55:47,886 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 17:55:47,887 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-19 17:55:47,902 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-19 17:55:47,903 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-10-19 17:55:47,904 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:13, output treesize:12 [2020-10-19 17:55:47,923 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 17:55:47,923 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-19 17:55:48,083 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 17:55:48,085 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1805391702] [2020-10-19 17:55:48,086 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-19 17:55:48,086 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2020-10-19 17:55:48,087 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2021650898] [2020-10-19 17:55:48,092 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-19 17:55:48,093 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-19 17:55:48,109 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-19 17:55:48,110 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-19 17:55:48,113 INFO L87 Difference]: Start difference. First operand 39 states. Second operand 6 states. [2020-10-19 17:55:48,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 17:55:48,680 INFO L93 Difference]: Finished difference Result 64 states and 71 transitions. [2020-10-19 17:55:48,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-19 17:55:48,683 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 10 [2020-10-19 17:55:48,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 17:55:48,694 INFO L225 Difference]: With dead ends: 64 [2020-10-19 17:55:48,694 INFO L226 Difference]: Without dead ends: 59 [2020-10-19 17:55:48,696 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 17:55:48,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2020-10-19 17:55:48,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 40. [2020-10-19 17:55:48,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2020-10-19 17:55:48,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 45 transitions. [2020-10-19 17:55:48,749 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 45 transitions. Word has length 10 [2020-10-19 17:55:48,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 17:55:48,750 INFO L481 AbstractCegarLoop]: Abstraction has 40 states and 45 transitions. [2020-10-19 17:55:48,750 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-19 17:55:48,751 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 45 transitions. [2020-10-19 17:55:48,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-19 17:55:48,752 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 17:55:48,752 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 17:55:48,966 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-10-19 17:55:48,967 INFO L429 AbstractCegarLoop]: === Iteration 2 === [test_funErr4REQUIRES_VIOLATION, test_funErr2REQUIRES_VIOLATION, test_funErr3REQUIRES_VIOLATION, test_funErr1REQUIRES_VIOLATION, test_funErr5REQUIRES_VIOLATION, test_funErr0REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION]=== [2020-10-19 17:55:48,967 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 17:55:48,968 INFO L82 PathProgramCache]: Analyzing trace with hash -1920451559, now seen corresponding path program 1 times [2020-10-19 17:55:48,968 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-19 17:55:48,969 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [294394] [2020-10-19 17:55:48,969 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 17:55:49,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 17:55:49,070 INFO L263 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 3 conjunts are in the unsatisfiable core [2020-10-19 17:55:49,071 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 17:55:49,086 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 17:55:49,086 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-19 17:55:49,089 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-19 17:55:49,089 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-10-19 17:55:49,090 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2020-10-19 17:55:49,095 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 17:55:49,095 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-19 17:55:49,112 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 17:55:49,112 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [294394] [2020-10-19 17:55:49,113 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-19 17:55:49,113 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-10-19 17:55:49,113 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [546639304] [2020-10-19 17:55:49,115 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 17:55:49,115 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-19 17:55:49,115 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 17:55:49,116 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 17:55:49,116 INFO L87 Difference]: Start difference. First operand 40 states and 45 transitions. Second operand 3 states. [2020-10-19 17:55:49,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 17:55:49,198 INFO L93 Difference]: Finished difference Result 39 states and 43 transitions. [2020-10-19 17:55:49,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 17:55:49,198 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2020-10-19 17:55:49,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 17:55:49,199 INFO L225 Difference]: With dead ends: 39 [2020-10-19 17:55:49,200 INFO L226 Difference]: Without dead ends: 39 [2020-10-19 17:55:49,200 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 17:55:49,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2020-10-19 17:55:49,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2020-10-19 17:55:49,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2020-10-19 17:55:49,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 43 transitions. [2020-10-19 17:55:49,207 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 43 transitions. Word has length 10 [2020-10-19 17:55:49,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 17:55:49,207 INFO L481 AbstractCegarLoop]: Abstraction has 39 states and 43 transitions. [2020-10-19 17:55:49,207 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 17:55:49,207 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 43 transitions. [2020-10-19 17:55:49,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-19 17:55:49,208 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 17:55:49,208 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 17:55:49,409 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-10-19 17:55:49,409 INFO L429 AbstractCegarLoop]: === Iteration 3 === [test_funErr4REQUIRES_VIOLATION, test_funErr2REQUIRES_VIOLATION, test_funErr3REQUIRES_VIOLATION, test_funErr1REQUIRES_VIOLATION, test_funErr5REQUIRES_VIOLATION, test_funErr0REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION]=== [2020-10-19 17:55:49,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 17:55:49,410 INFO L82 PathProgramCache]: Analyzing trace with hash -1433090221, now seen corresponding path program 1 times [2020-10-19 17:55:49,411 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-19 17:55:49,412 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [993754748] [2020-10-19 17:55:49,412 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 17:55:49,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 17:55:49,523 INFO L263 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 5 conjunts are in the unsatisfiable core [2020-10-19 17:55:49,525 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 17:55:49,547 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 17:55:49,548 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-19 17:55:49,551 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-19 17:55:49,552 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-10-19 17:55:49,552 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2020-10-19 17:55:49,582 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 17:55:49,582 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-19 17:55:49,595 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 17:55:49,596 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [993754748] [2020-10-19 17:55:49,596 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-19 17:55:49,596 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2020-10-19 17:55:49,596 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [446183299] [2020-10-19 17:55:49,597 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-19 17:55:49,598 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-19 17:55:49,598 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-19 17:55:49,598 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-19 17:55:49,598 INFO L87 Difference]: Start difference. First operand 39 states and 43 transitions. Second operand 5 states. [2020-10-19 17:55:49,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 17:55:49,754 INFO L93 Difference]: Finished difference Result 36 states and 40 transitions. [2020-10-19 17:55:49,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-19 17:55:49,756 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-10-19 17:55:49,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 17:55:49,757 INFO L225 Difference]: With dead ends: 36 [2020-10-19 17:55:49,757 INFO L226 Difference]: Without dead ends: 36 [2020-10-19 17:55:49,757 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 22 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 17:55:49,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2020-10-19 17:55:49,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2020-10-19 17:55:49,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2020-10-19 17:55:49,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 40 transitions. [2020-10-19 17:55:49,763 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 40 transitions. Word has length 13 [2020-10-19 17:55:49,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 17:55:49,763 INFO L481 AbstractCegarLoop]: Abstraction has 36 states and 40 transitions. [2020-10-19 17:55:49,764 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-19 17:55:49,764 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 40 transitions. [2020-10-19 17:55:49,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-19 17:55:49,765 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 17:55:49,765 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 17:55:49,969 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-10-19 17:55:49,976 INFO L429 AbstractCegarLoop]: === Iteration 4 === [test_funErr4REQUIRES_VIOLATION, test_funErr2REQUIRES_VIOLATION, test_funErr3REQUIRES_VIOLATION, test_funErr1REQUIRES_VIOLATION, test_funErr5REQUIRES_VIOLATION, test_funErr0REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION]=== [2020-10-19 17:55:49,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 17:55:49,976 INFO L82 PathProgramCache]: Analyzing trace with hash -1433090220, now seen corresponding path program 1 times [2020-10-19 17:55:49,977 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-19 17:55:49,977 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1370333962] [2020-10-19 17:55:49,978 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 17:55:50,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 17:55:50,068 INFO L263 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 12 conjunts are in the unsatisfiable core [2020-10-19 17:55:50,069 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 17:55:50,105 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 17:55:50,106 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-19 17:55:50,124 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-19 17:55:50,127 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1370333962] [2020-10-19 17:55:50,127 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: no int: (_ BitVec 32) [2020-10-19 17:55:50,128 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1754877270] [2020-10-19 17:55:50,128 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 17:55:50,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 17:55:50,347 INFO L263 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-19 17:55:50,348 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 17:55:50,371 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 17:55:50,371 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-19 17:55:50,398 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 17:55:50,398 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-19 17:55:50,398 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2020-10-19 17:55:50,399 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [204800345] [2020-10-19 17:55:50,399 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-19 17:55:50,399 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-19 17:55:50,400 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-19 17:55:50,400 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-19 17:55:50,400 INFO L87 Difference]: Start difference. First operand 36 states and 40 transitions. Second operand 6 states. [2020-10-19 17:55:50,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 17:55:50,488 INFO L93 Difference]: Finished difference Result 38 states and 41 transitions. [2020-10-19 17:55:50,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-19 17:55:50,489 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 13 [2020-10-19 17:55:50,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 17:55:50,490 INFO L225 Difference]: With dead ends: 38 [2020-10-19 17:55:50,491 INFO L226 Difference]: Without dead ends: 38 [2020-10-19 17:55:50,491 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 28 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 17:55:50,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2020-10-19 17:55:50,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 34. [2020-10-19 17:55:50,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2020-10-19 17:55:50,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 37 transitions. [2020-10-19 17:55:50,496 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 37 transitions. Word has length 13 [2020-10-19 17:55:50,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 17:55:50,496 INFO L481 AbstractCegarLoop]: Abstraction has 34 states and 37 transitions. [2020-10-19 17:55:50,497 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-19 17:55:50,497 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 37 transitions. [2020-10-19 17:55:50,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-19 17:55:50,497 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 17:55:50,498 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 17:55:50,901 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 17:55:50,902 INFO L429 AbstractCegarLoop]: === Iteration 5 === [test_funErr4REQUIRES_VIOLATION, test_funErr2REQUIRES_VIOLATION, test_funErr3REQUIRES_VIOLATION, test_funErr1REQUIRES_VIOLATION, test_funErr5REQUIRES_VIOLATION, test_funErr0REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION]=== [2020-10-19 17:55:50,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 17:55:50,903 INFO L82 PathProgramCache]: Analyzing trace with hash -663520419, now seen corresponding path program 1 times [2020-10-19 17:55:50,904 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-19 17:55:50,904 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2104836096] [2020-10-19 17:55:50,905 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 17:55:50,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 17:55:51,000 INFO L263 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-19 17:55:51,001 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 17:55:51,042 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 17:55:51,043 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-19 17:55:51,083 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 17:55:51,083 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2104836096] [2020-10-19 17:55:51,084 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-19 17:55:51,084 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2020-10-19 17:55:51,084 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1122991914] [2020-10-19 17:55:51,085 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-19 17:55:51,085 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-19 17:55:51,085 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-19 17:55:51,086 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2020-10-19 17:55:51,086 INFO L87 Difference]: Start difference. First operand 34 states and 37 transitions. Second operand 8 states. [2020-10-19 17:55:51,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 17:55:51,197 INFO L93 Difference]: Finished difference Result 44 states and 47 transitions. [2020-10-19 17:55:51,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-19 17:55:51,198 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 14 [2020-10-19 17:55:51,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 17:55:51,199 INFO L225 Difference]: With dead ends: 44 [2020-10-19 17:55:51,199 INFO L226 Difference]: Without dead ends: 44 [2020-10-19 17:55:51,200 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 21 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 17:55:51,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2020-10-19 17:55:51,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 40. [2020-10-19 17:55:51,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2020-10-19 17:55:51,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 43 transitions. [2020-10-19 17:55:51,205 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 43 transitions. Word has length 14 [2020-10-19 17:55:51,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 17:55:51,206 INFO L481 AbstractCegarLoop]: Abstraction has 40 states and 43 transitions. [2020-10-19 17:55:51,206 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-19 17:55:51,206 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 43 transitions. [2020-10-19 17:55:51,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-19 17:55:51,206 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 17:55:51,207 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 17:55:51,425 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 mathsat -unsat_core_generation=3 [2020-10-19 17:55:51,426 INFO L429 AbstractCegarLoop]: === Iteration 6 === [test_funErr4REQUIRES_VIOLATION, test_funErr2REQUIRES_VIOLATION, test_funErr3REQUIRES_VIOLATION, test_funErr1REQUIRES_VIOLATION, test_funErr5REQUIRES_VIOLATION, test_funErr0REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION]=== [2020-10-19 17:55:51,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 17:55:51,426 INFO L82 PathProgramCache]: Analyzing trace with hash -1472867045, now seen corresponding path program 1 times [2020-10-19 17:55:51,427 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-19 17:55:51,427 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [680863023] [2020-10-19 17:55:51,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 8 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with mathsat -unsat_core_generation=3 [2020-10-19 17:55:51,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 17:55:51,510 INFO L263 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 10 conjunts are in the unsatisfiable core [2020-10-19 17:55:51,512 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 17:55:51,541 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 17:55:51,541 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-19 17:55:51,562 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-19 17:55:51,562 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-10-19 17:55:51,562 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:23, output treesize:22 [2020-10-19 17:55:51,677 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 17:55:51,677 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-19 17:55:52,108 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 17:55:52,109 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [680863023] [2020-10-19 17:55:52,109 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-19 17:55:52,109 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2020-10-19 17:55:52,109 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1194064978] [2020-10-19 17:55:52,110 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-19 17:55:52,110 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-19 17:55:52,110 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-19 17:55:52,111 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2020-10-19 17:55:52,111 INFO L87 Difference]: Start difference. First operand 40 states and 43 transitions. Second operand 10 states. [2020-10-19 17:55:52,508 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 32 [2020-10-19 17:55:53,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 17:55:53,242 INFO L93 Difference]: Finished difference Result 60 states and 66 transitions. [2020-10-19 17:55:53,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-19 17:55:53,243 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 14 [2020-10-19 17:55:53,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 17:55:53,244 INFO L225 Difference]: With dead ends: 60 [2020-10-19 17:55:53,244 INFO L226 Difference]: Without dead ends: 60 [2020-10-19 17:55:53,244 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 17:55:53,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2020-10-19 17:55:53,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 52. [2020-10-19 17:55:53,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2020-10-19 17:55:53,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 58 transitions. [2020-10-19 17:55:53,251 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 58 transitions. Word has length 14 [2020-10-19 17:55:53,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 17:55:53,252 INFO L481 AbstractCegarLoop]: Abstraction has 52 states and 58 transitions. [2020-10-19 17:55:53,252 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-19 17:55:53,252 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 58 transitions. [2020-10-19 17:55:53,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-19 17:55:53,253 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 17:55:53,253 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 17:55:53,455 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 mathsat -unsat_core_generation=3 [2020-10-19 17:55:53,455 INFO L429 AbstractCegarLoop]: === Iteration 7 === [test_funErr4REQUIRES_VIOLATION, test_funErr2REQUIRES_VIOLATION, test_funErr3REQUIRES_VIOLATION, test_funErr1REQUIRES_VIOLATION, test_funErr5REQUIRES_VIOLATION, test_funErr0REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION]=== [2020-10-19 17:55:53,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 17:55:53,456 INFO L82 PathProgramCache]: Analyzing trace with hash -1497422161, now seen corresponding path program 1 times [2020-10-19 17:55:53,456 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-19 17:55:53,457 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1665694372] [2020-10-19 17:55:53,457 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 17:55:53,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 17:55:53,540 INFO L263 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 11 conjunts are in the unsatisfiable core [2020-10-19 17:55:53,542 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 17:55:53,557 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 17:55:53,557 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-19 17:55:53,562 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-19 17:55:53,562 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-10-19 17:55:53,563 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2020-10-19 17:55:53,601 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 17:55:53,602 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-19 17:55:53,825 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 17:55:53,826 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1665694372] [2020-10-19 17:55:53,826 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-19 17:55:53,826 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 9 [2020-10-19 17:55:53,827 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1614004441] [2020-10-19 17:55:53,827 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-19 17:55:53,828 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-19 17:55:53,828 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-19 17:55:53,828 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-10-19 17:55:53,828 INFO L87 Difference]: Start difference. First operand 52 states and 58 transitions. Second operand 10 states. [2020-10-19 17:55:54,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 17:55:54,637 INFO L93 Difference]: Finished difference Result 84 states and 94 transitions. [2020-10-19 17:55:54,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-19 17:55:54,638 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 17 [2020-10-19 17:55:54,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 17:55:54,642 INFO L225 Difference]: With dead ends: 84 [2020-10-19 17:55:54,642 INFO L226 Difference]: Without dead ends: 84 [2020-10-19 17:55:54,644 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=50, Invalid=160, Unknown=0, NotChecked=0, Total=210 [2020-10-19 17:55:54,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2020-10-19 17:55:54,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 52. [2020-10-19 17:55:54,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2020-10-19 17:55:54,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 59 transitions. [2020-10-19 17:55:54,653 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 59 transitions. Word has length 17 [2020-10-19 17:55:54,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 17:55:54,654 INFO L481 AbstractCegarLoop]: Abstraction has 52 states and 59 transitions. [2020-10-19 17:55:54,654 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-19 17:55:54,654 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 59 transitions. [2020-10-19 17:55:54,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-10-19 17:55:54,655 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 17:55:54,655 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 17:55:54,857 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 mathsat -unsat_core_generation=3 [2020-10-19 17:55:54,858 INFO L429 AbstractCegarLoop]: === Iteration 8 === [test_funErr4REQUIRES_VIOLATION, test_funErr2REQUIRES_VIOLATION, test_funErr3REQUIRES_VIOLATION, test_funErr1REQUIRES_VIOLATION, test_funErr5REQUIRES_VIOLATION, test_funErr0REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION]=== [2020-10-19 17:55:54,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 17:55:54,859 INFO L82 PathProgramCache]: Analyzing trace with hash 1313569229, now seen corresponding path program 1 times [2020-10-19 17:55:54,859 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-19 17:55:54,860 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [204882701] [2020-10-19 17:55:54,860 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 17:55:54,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 17:55:54,947 INFO L263 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 5 conjunts are in the unsatisfiable core [2020-10-19 17:55:54,948 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 17:55:54,956 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [204882701] [2020-10-19 17:55:54,956 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: no int: (_ BitVec 32) [2020-10-19 17:55:54,956 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1755889372] [2020-10-19 17:55:54,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 11 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2020-10-19 17:55:55,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 17:55:55,155 INFO L263 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 5 conjunts are in the unsatisfiable core [2020-10-19 17:55:55,156 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 17:55:55,159 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: no int: (_ BitVec 32) [2020-10-19 17:55:55,159 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [876215990] [2020-10-19 17:55:55,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-19 17:55:55,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 17:55:55,247 INFO L263 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 5 conjunts are in the unsatisfiable core [2020-10-19 17:55:55,249 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 17:55:55,266 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 17:55:55,266 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-19 17:55:55,339 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 17:55:55,340 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-19 17:55:55,340 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 7 [2020-10-19 17:55:55,340 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [423579307] [2020-10-19 17:55:55,341 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-19 17:55:55,341 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-19 17:55:55,341 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-19 17:55:55,342 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-19 17:55:55,342 INFO L87 Difference]: Start difference. First operand 52 states and 59 transitions. Second operand 7 states. [2020-10-19 17:55:55,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 17:55:55,486 INFO L93 Difference]: Finished difference Result 66 states and 73 transitions. [2020-10-19 17:55:55,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-19 17:55:55,487 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 21 [2020-10-19 17:55:55,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 17:55:55,488 INFO L225 Difference]: With dead ends: 66 [2020-10-19 17:55:55,488 INFO L226 Difference]: Without dead ends: 63 [2020-10-19 17:55:55,488 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-10-19 17:55:55,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2020-10-19 17:55:55,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 52. [2020-10-19 17:55:55,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2020-10-19 17:55:55,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 58 transitions. [2020-10-19 17:55:55,493 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 58 transitions. Word has length 21 [2020-10-19 17:55:55,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 17:55:55,494 INFO L481 AbstractCegarLoop]: Abstraction has 52 states and 58 transitions. [2020-10-19 17:55:55,494 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-19 17:55:55,494 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 58 transitions. [2020-10-19 17:55:55,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-10-19 17:55:55,495 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 17:55:55,495 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 17:55:56,103 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true,10 mathsat -unsat_core_generation=3,11 cvc4 --incremental --print-success --lang smt --rewrite-divk [2020-10-19 17:55:56,103 INFO L429 AbstractCegarLoop]: === Iteration 9 === [test_funErr4REQUIRES_VIOLATION, test_funErr2REQUIRES_VIOLATION, test_funErr3REQUIRES_VIOLATION, test_funErr1REQUIRES_VIOLATION, test_funErr5REQUIRES_VIOLATION, test_funErr0REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION]=== [2020-10-19 17:55:56,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 17:55:56,104 INFO L82 PathProgramCache]: Analyzing trace with hash 1349011394, now seen corresponding path program 1 times [2020-10-19 17:55:56,105 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-19 17:55:56,105 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2083068541] [2020-10-19 17:55:56,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 13 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with mathsat -unsat_core_generation=3 [2020-10-19 17:55:56,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 17:55:56,202 INFO L263 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 6 conjunts are in the unsatisfiable core [2020-10-19 17:55:56,203 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 17:55:56,241 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-19 17:55:56,241 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-19 17:55:56,302 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-19 17:55:56,302 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2083068541] [2020-10-19 17:55:56,303 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-19 17:55:56,303 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2020-10-19 17:55:56,303 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1017334163] [2020-10-19 17:55:56,304 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-19 17:55:56,304 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-19 17:55:56,304 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-19 17:55:56,305 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2020-10-19 17:55:56,305 INFO L87 Difference]: Start difference. First operand 52 states and 58 transitions. Second operand 10 states. [2020-10-19 17:55:56,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 17:55:56,438 INFO L93 Difference]: Finished difference Result 69 states and 75 transitions. [2020-10-19 17:55:56,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-19 17:55:56,440 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 21 [2020-10-19 17:55:56,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 17:55:56,441 INFO L225 Difference]: With dead ends: 69 [2020-10-19 17:55:56,441 INFO L226 Difference]: Without dead ends: 69 [2020-10-19 17:55:56,442 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2020-10-19 17:55:56,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2020-10-19 17:55:56,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 66. [2020-10-19 17:55:56,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2020-10-19 17:55:56,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 73 transitions. [2020-10-19 17:55:56,449 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 73 transitions. Word has length 21 [2020-10-19 17:55:56,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 17:55:56,450 INFO L481 AbstractCegarLoop]: Abstraction has 66 states and 73 transitions. [2020-10-19 17:55:56,450 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-19 17:55:56,450 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 73 transitions. [2020-10-19 17:55:56,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-10-19 17:55:56,451 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 17:55:56,452 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 17:55:56,663 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 mathsat -unsat_core_generation=3 [2020-10-19 17:55:56,663 INFO L429 AbstractCegarLoop]: === Iteration 10 === [test_funErr4REQUIRES_VIOLATION, test_funErr2REQUIRES_VIOLATION, test_funErr3REQUIRES_VIOLATION, test_funErr1REQUIRES_VIOLATION, test_funErr5REQUIRES_VIOLATION, test_funErr0REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION]=== [2020-10-19 17:55:56,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 17:55:56,664 INFO L82 PathProgramCache]: Analyzing trace with hash 69147716, now seen corresponding path program 1 times [2020-10-19 17:55:56,665 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-19 17:55:56,665 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1782908162] [2020-10-19 17:55:56,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 14 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with mathsat -unsat_core_generation=3 [2020-10-19 17:55:56,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 17:55:56,775 INFO L263 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 16 conjunts are in the unsatisfiable core [2020-10-19 17:55:56,778 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 17:55:56,808 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 17:55:56,809 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-19 17:55:56,831 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-19 17:55:56,832 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-10-19 17:55:56,832 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:20, output treesize:19 [2020-10-19 17:55:57,030 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-19 17:55:57,031 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-19 17:55:57,706 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-19 17:55:57,707 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1782908162] [2020-10-19 17:55:57,707 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-19 17:55:57,707 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2020-10-19 17:55:57,707 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [363188097] [2020-10-19 17:55:57,708 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-19 17:55:57,709 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-19 17:55:57,709 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-19 17:55:57,709 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2020-10-19 17:55:57,710 INFO L87 Difference]: Start difference. First operand 66 states and 73 transitions. Second operand 14 states. [2020-10-19 17:55:58,681 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 40 [2020-10-19 17:55:58,916 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 36 [2020-10-19 17:55:59,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 17:55:59,403 INFO L93 Difference]: Finished difference Result 99 states and 112 transitions. [2020-10-19 17:55:59,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-19 17:55:59,405 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 21 [2020-10-19 17:55:59,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 17:55:59,406 INFO L225 Difference]: With dead ends: 99 [2020-10-19 17:55:59,406 INFO L226 Difference]: Without dead ends: 99 [2020-10-19 17:55:59,407 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=108, Invalid=354, Unknown=0, NotChecked=0, Total=462 [2020-10-19 17:55:59,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2020-10-19 17:55:59,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 90. [2020-10-19 17:55:59,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 90 states. [2020-10-19 17:55:59,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 103 transitions. [2020-10-19 17:55:59,415 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 103 transitions. Word has length 21 [2020-10-19 17:55:59,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 17:55:59,416 INFO L481 AbstractCegarLoop]: Abstraction has 90 states and 103 transitions. [2020-10-19 17:55:59,416 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-19 17:55:59,416 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 103 transitions. [2020-10-19 17:55:59,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-10-19 17:55:59,417 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 17:55:59,417 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 17:55:59,620 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 mathsat -unsat_core_generation=3 [2020-10-19 17:55:59,621 INFO L429 AbstractCegarLoop]: === Iteration 11 === [test_funErr4REQUIRES_VIOLATION, test_funErr2REQUIRES_VIOLATION, test_funErr3REQUIRES_VIOLATION, test_funErr1REQUIRES_VIOLATION, test_funErr5REQUIRES_VIOLATION, test_funErr0REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION]=== [2020-10-19 17:55:59,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 17:55:59,621 INFO L82 PathProgramCache]: Analyzing trace with hash -846735008, now seen corresponding path program 1 times [2020-10-19 17:55:59,622 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-19 17:55:59,623 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1862634365] [2020-10-19 17:55:59,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 15 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with mathsat -unsat_core_generation=3 [2020-10-19 17:55:59,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 17:55:59,721 INFO L263 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 7 conjunts are in the unsatisfiable core [2020-10-19 17:55:59,723 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 17:55:59,729 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 17:55:59,730 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-19 17:55:59,731 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-19 17:55:59,732 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-10-19 17:55:59,732 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2020-10-19 17:55:59,784 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-10-19 17:55:59,785 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 17:55:59,786 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-19 17:55:59,802 INFO L625 ElimStorePlain]: treesize reduction 10, result has 60.0 percent of original size [2020-10-19 17:55:59,804 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-19 17:55:59,807 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 17:55:59,808 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:17, output treesize:15 [2020-10-19 17:55:59,808 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-19 17:55:59,825 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-19 17:55:59,844 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-19 17:55:59,856 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-19 17:55:59,869 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-19 17:55:59,893 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-19 17:55:59,912 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-19 17:55:59,926 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-19 17:55:59,938 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-19 17:55:59,951 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-19 17:55:59,972 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-19 17:55:59,973 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-19 17:56:04,049 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-19 17:56:04,049 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1862634365] [2020-10-19 17:56:04,050 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-19 17:56:04,050 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 4] imperfect sequences [] total 8 [2020-10-19 17:56:04,050 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [536232016] [2020-10-19 17:56:04,050 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-19 17:56:04,050 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-19 17:56:04,051 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-19 17:56:04,051 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=49, Unknown=2, NotChecked=0, Total=72 [2020-10-19 17:56:04,051 INFO L87 Difference]: Start difference. First operand 90 states and 103 transitions. Second operand 9 states. [2020-10-19 17:56:04,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 17:56:04,237 INFO L93 Difference]: Finished difference Result 89 states and 102 transitions. [2020-10-19 17:56:04,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-19 17:56:04,238 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 25 [2020-10-19 17:56:04,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 17:56:04,239 INFO L225 Difference]: With dead ends: 89 [2020-10-19 17:56:04,239 INFO L226 Difference]: Without dead ends: 64 [2020-10-19 17:56:04,239 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 33 SyntacticMatches, 10 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=34, Invalid=74, Unknown=2, NotChecked=0, Total=110 [2020-10-19 17:56:04,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2020-10-19 17:56:04,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 64. [2020-10-19 17:56:04,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64 states. [2020-10-19 17:56:04,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 72 transitions. [2020-10-19 17:56:04,246 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 72 transitions. Word has length 25 [2020-10-19 17:56:04,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 17:56:04,246 INFO L481 AbstractCegarLoop]: Abstraction has 64 states and 72 transitions. [2020-10-19 17:56:04,246 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-19 17:56:04,246 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 72 transitions. [2020-10-19 17:56:04,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-10-19 17:56:04,247 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 17:56:04,248 INFO L422 BasicCegarLoop]: trace histogram [5, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 17:56:04,453 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 mathsat -unsat_core_generation=3 [2020-10-19 17:56:04,454 INFO L429 AbstractCegarLoop]: === Iteration 12 === [test_funErr4REQUIRES_VIOLATION, test_funErr2REQUIRES_VIOLATION, test_funErr3REQUIRES_VIOLATION, test_funErr1REQUIRES_VIOLATION, test_funErr5REQUIRES_VIOLATION, test_funErr0REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION]=== [2020-10-19 17:56:04,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 17:56:04,455 INFO L82 PathProgramCache]: Analyzing trace with hash -1022374684, now seen corresponding path program 2 times [2020-10-19 17:56:04,455 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-19 17:56:04,456 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1272961392] [2020-10-19 17:56:04,456 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 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 17:56:04,549 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-10-19 17:56:04,550 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-19 17:56:04,554 INFO L263 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 14 conjunts are in the unsatisfiable core [2020-10-19 17:56:04,555 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 17:56:04,584 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 17:56:04,584 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-19 17:56:04,608 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-19 17:56:04,609 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-10-19 17:56:04,609 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:23, output treesize:22 [2020-10-19 17:56:04,933 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 17:56:04,933 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-19 17:56:05,992 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 17:56:05,992 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1272961392] [2020-10-19 17:56:05,992 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-19 17:56:05,992 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 17 [2020-10-19 17:56:05,993 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1665361571] [2020-10-19 17:56:05,993 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-10-19 17:56:05,993 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-19 17:56:05,993 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-10-19 17:56:05,994 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=89, Invalid=217, Unknown=0, NotChecked=0, Total=306 [2020-10-19 17:56:05,994 INFO L87 Difference]: Start difference. First operand 64 states and 72 transitions. Second operand 18 states. [2020-10-19 17:56:07,784 WARN L193 SmtUtils]: Spent 582.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2020-10-19 17:56:08,567 WARN L193 SmtUtils]: Spent 651.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2020-10-19 17:56:11,184 WARN L193 SmtUtils]: Spent 395.00 ms on a formula simplification that was a NOOP. DAG size: 55 [2020-10-19 17:56:11,644 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 50 [2020-10-19 17:56:13,496 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 44 [2020-10-19 17:56:13,817 WARN L193 SmtUtils]: Spent 183.00 ms on a formula simplification that was a NOOP. DAG size: 39 [2020-10-19 17:56:14,212 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 33 [2020-10-19 17:56:14,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 17:56:14,859 INFO L93 Difference]: Finished difference Result 96 states and 110 transitions. [2020-10-19 17:56:14,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-10-19 17:56:14,860 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 26 [2020-10-19 17:56:14,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 17:56:14,862 INFO L225 Difference]: With dead ends: 96 [2020-10-19 17:56:14,862 INFO L226 Difference]: Without dead ends: 96 [2020-10-19 17:56:14,862 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 199 ImplicationChecksByTransitivity, 5.6s TimeCoverageRelationStatistics Valid=311, Invalid=619, Unknown=0, NotChecked=0, Total=930 [2020-10-19 17:56:14,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2020-10-19 17:56:14,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 88. [2020-10-19 17:56:14,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 88 states. [2020-10-19 17:56:14,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 102 transitions. [2020-10-19 17:56:14,868 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 102 transitions. Word has length 26 [2020-10-19 17:56:14,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 17:56:14,868 INFO L481 AbstractCegarLoop]: Abstraction has 88 states and 102 transitions. [2020-10-19 17:56:14,868 INFO L482 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-10-19 17:56:14,868 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 102 transitions. [2020-10-19 17:56:14,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-10-19 17:56:14,869 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 17:56:14,870 INFO L422 BasicCegarLoop]: trace histogram [5, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 17:56:15,070 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 mathsat -unsat_core_generation=3 [2020-10-19 17:56:15,071 INFO L429 AbstractCegarLoop]: === Iteration 13 === [test_funErr4REQUIRES_VIOLATION, test_funErr2REQUIRES_VIOLATION, test_funErr3REQUIRES_VIOLATION, test_funErr1REQUIRES_VIOLATION, test_funErr5REQUIRES_VIOLATION, test_funErr0REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION]=== [2020-10-19 17:56:15,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 17:56:15,072 INFO L82 PathProgramCache]: Analyzing trace with hash 302793597, now seen corresponding path program 2 times [2020-10-19 17:56:15,073 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-19 17:56:15,073 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [928386908] [2020-10-19 17:56:15,073 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 17 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with mathsat -unsat_core_generation=3 [2020-10-19 17:56:15,172 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-10-19 17:56:15,173 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-19 17:56:15,176 INFO L263 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 20 conjunts are in the unsatisfiable core [2020-10-19 17:56:15,178 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 17:56:15,196 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 17:56:15,196 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-19 17:56:15,213 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-19 17:56:15,214 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-10-19 17:56:15,214 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:23, output treesize:22 [2020-10-19 17:56:15,297 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [928386908] [2020-10-19 17:56:15,298 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: no int: (_ BitVec 32) [2020-10-19 17:56:15,298 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [594148337] [2020-10-19 17:56:15,298 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 18 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2020-10-19 17:56:15,558 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-10-19 17:56:15,559 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-19 17:56:15,561 INFO L263 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 10 conjunts are in the unsatisfiable core [2020-10-19 17:56:15,563 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 17:56:15,783 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 16 proven. 2 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-10-19 17:56:15,783 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-19 17:56:15,994 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 16 proven. 2 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-10-19 17:56:15,995 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-19 17:56:15,995 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 15 [2020-10-19 17:56:15,995 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1677482989] [2020-10-19 17:56:15,996 INFO L461 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-19 17:56:15,996 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-19 17:56:15,996 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-19 17:56:15,996 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=251, Unknown=0, NotChecked=0, Total=306 [2020-10-19 17:56:15,997 INFO L87 Difference]: Start difference. First operand 88 states and 102 transitions. Second operand 15 states. [2020-10-19 17:56:16,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 17:56:16,805 INFO L93 Difference]: Finished difference Result 99 states and 113 transitions. [2020-10-19 17:56:16,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-19 17:56:16,807 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 33 [2020-10-19 17:56:16,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 17:56:16,808 INFO L225 Difference]: With dead ends: 99 [2020-10-19 17:56:16,809 INFO L226 Difference]: Without dead ends: 88 [2020-10-19 17:56:16,809 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 94 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=86, Invalid=376, Unknown=0, NotChecked=0, Total=462 [2020-10-19 17:56:16,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2020-10-19 17:56:16,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 88. [2020-10-19 17:56:16,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 88 states. [2020-10-19 17:56:16,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 101 transitions. [2020-10-19 17:56:16,825 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 101 transitions. Word has length 33 [2020-10-19 17:56:16,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 17:56:16,826 INFO L481 AbstractCegarLoop]: Abstraction has 88 states and 101 transitions. [2020-10-19 17:56:16,826 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-19 17:56:16,826 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 101 transitions. [2020-10-19 17:56:16,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2020-10-19 17:56:16,833 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 17:56:16,833 INFO L422 BasicCegarLoop]: trace histogram [5, 4, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 17:56:17,250 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 mathsat -unsat_core_generation=3,18 cvc4 --incremental --print-success --lang smt --rewrite-divk [2020-10-19 17:56:17,250 INFO L429 AbstractCegarLoop]: === Iteration 14 === [test_funErr4REQUIRES_VIOLATION, test_funErr2REQUIRES_VIOLATION, test_funErr3REQUIRES_VIOLATION, test_funErr1REQUIRES_VIOLATION, test_funErr5REQUIRES_VIOLATION, test_funErr0REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION]=== [2020-10-19 17:56:17,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 17:56:17,251 INFO L82 PathProgramCache]: Analyzing trace with hash -1132333094, now seen corresponding path program 3 times [2020-10-19 17:56:17,252 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-19 17:56:17,253 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [785859320] [2020-10-19 17:56:17,253 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 19 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with mathsat -unsat_core_generation=3 [2020-10-19 17:56:17,448 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2020-10-19 17:56:17,449 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-19 17:56:17,454 INFO L263 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 23 conjunts are in the unsatisfiable core [2020-10-19 17:56:17,455 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 17:56:17,477 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 17:56:17,477 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-19 17:56:17,494 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-19 17:56:17,494 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-10-19 17:56:17,495 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:23, output treesize:22 [2020-10-19 17:56:17,930 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 4 proven. 34 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 17:56:17,931 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-19 17:56:19,925 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 17:56:19,926 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [785859320] [2020-10-19 17:56:19,926 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-19 17:56:19,926 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 12] total 24 [2020-10-19 17:56:19,926 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1979032710] [2020-10-19 17:56:19,928 INFO L461 AbstractCegarLoop]: Interpolant automaton has 24 states [2020-10-19 17:56:19,928 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-19 17:56:19,929 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2020-10-19 17:56:19,929 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=96, Invalid=456, Unknown=0, NotChecked=0, Total=552 [2020-10-19 17:56:19,929 INFO L87 Difference]: Start difference. First operand 88 states and 101 transitions. Second operand 24 states. [2020-10-19 17:56:21,561 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 32 [2020-10-19 17:56:22,296 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 36 [2020-10-19 17:56:22,794 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 34 [2020-10-19 17:56:23,332 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 38 [2020-10-19 17:56:23,748 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 35 [2020-10-19 17:56:24,382 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 39 [2020-10-19 17:56:24,811 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 34 [2020-10-19 17:56:25,369 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 37 [2020-10-19 17:56:25,788 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 31 [2020-10-19 17:56:26,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 17:56:26,422 INFO L93 Difference]: Finished difference Result 120 states and 135 transitions. [2020-10-19 17:56:26,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-10-19 17:56:26,425 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 37 [2020-10-19 17:56:26,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 17:56:26,426 INFO L225 Difference]: With dead ends: 120 [2020-10-19 17:56:26,426 INFO L226 Difference]: Without dead ends: 101 [2020-10-19 17:56:26,427 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 49 SyntacticMatches, 2 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 280 ImplicationChecksByTransitivity, 6.6s TimeCoverageRelationStatistics Valid=252, Invalid=1308, Unknown=0, NotChecked=0, Total=1560 [2020-10-19 17:56:26,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2020-10-19 17:56:26,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 96. [2020-10-19 17:56:26,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 96 states. [2020-10-19 17:56:26,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 109 transitions. [2020-10-19 17:56:26,433 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 109 transitions. Word has length 37 [2020-10-19 17:56:26,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 17:56:26,433 INFO L481 AbstractCegarLoop]: Abstraction has 96 states and 109 transitions. [2020-10-19 17:56:26,433 INFO L482 AbstractCegarLoop]: Interpolant automaton has 24 states. [2020-10-19 17:56:26,433 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 109 transitions. [2020-10-19 17:56:26,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-10-19 17:56:26,442 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 17:56:26,442 INFO L422 BasicCegarLoop]: trace histogram [6, 5, 5, 5, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 17:56:26,643 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 mathsat -unsat_core_generation=3 [2020-10-19 17:56:26,643 INFO L429 AbstractCegarLoop]: === Iteration 15 === [test_funErr4REQUIRES_VIOLATION, test_funErr2REQUIRES_VIOLATION, test_funErr3REQUIRES_VIOLATION, test_funErr1REQUIRES_VIOLATION, test_funErr5REQUIRES_VIOLATION, test_funErr0REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION]=== [2020-10-19 17:56:26,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 17:56:26,644 INFO L82 PathProgramCache]: Analyzing trace with hash -1726573878, now seen corresponding path program 4 times [2020-10-19 17:56:26,645 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-19 17:56:26,645 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [561629425] [2020-10-19 17:56:26,646 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST 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 17:56:26,764 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2020-10-19 17:56:26,764 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-19 17:56:26,771 INFO L263 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 23 conjunts are in the unsatisfiable core [2020-10-19 17:56:26,773 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 17:56:26,793 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 17:56:26,793 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-19 17:56:26,811 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-19 17:56:26,812 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-10-19 17:56:26,812 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:23, output treesize:22 [2020-10-19 17:56:26,968 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [561629425] [2020-10-19 17:56:26,968 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: no int: (_ BitVec 32) [2020-10-19 17:56:26,969 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [330543161] [2020-10-19 17:56:26,969 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 21 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2020-10-19 17:56:27,285 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2020-10-19 17:56:27,286 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-19 17:56:27,287 INFO L263 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 14 conjunts are in the unsatisfiable core [2020-10-19 17:56:27,289 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 17:56:27,678 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 29 proven. 30 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-10-19 17:56:27,678 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-19 17:56:28,249 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 29 proven. 30 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-10-19 17:56:28,250 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-19 17:56:28,250 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 12] total 23 [2020-10-19 17:56:28,250 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1702092937] [2020-10-19 17:56:28,251 INFO L461 AbstractCegarLoop]: Interpolant automaton has 23 states [2020-10-19 17:56:28,251 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-19 17:56:28,251 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2020-10-19 17:56:28,252 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=106, Invalid=650, Unknown=0, NotChecked=0, Total=756 [2020-10-19 17:56:28,252 INFO L87 Difference]: Start difference. First operand 96 states and 109 transitions. Second operand 23 states. [2020-10-19 17:56:29,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 17:56:29,296 INFO L93 Difference]: Finished difference Result 123 states and 138 transitions. [2020-10-19 17:56:29,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-19 17:56:29,297 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 45 [2020-10-19 17:56:29,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 17:56:29,298 INFO L225 Difference]: With dead ends: 123 [2020-10-19 17:56:29,298 INFO L226 Difference]: Without dead ends: 96 [2020-10-19 17:56:29,299 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 286 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=160, Invalid=962, Unknown=0, NotChecked=0, Total=1122 [2020-10-19 17:56:29,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2020-10-19 17:56:29,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 96. [2020-10-19 17:56:29,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 96 states. [2020-10-19 17:56:29,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 108 transitions. [2020-10-19 17:56:29,304 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 108 transitions. Word has length 45 [2020-10-19 17:56:29,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 17:56:29,305 INFO L481 AbstractCegarLoop]: Abstraction has 96 states and 108 transitions. [2020-10-19 17:56:29,305 INFO L482 AbstractCegarLoop]: Interpolant automaton has 23 states. [2020-10-19 17:56:29,305 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 108 transitions. [2020-10-19 17:56:29,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2020-10-19 17:56:29,306 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 17:56:29,306 INFO L422 BasicCegarLoop]: trace histogram [6, 5, 5, 5, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 17:56:29,716 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 mathsat -unsat_core_generation=3,21 cvc4 --incremental --print-success --lang smt --rewrite-divk [2020-10-19 17:56:29,716 INFO L429 AbstractCegarLoop]: === Iteration 16 === [test_funErr4REQUIRES_VIOLATION, test_funErr2REQUIRES_VIOLATION, test_funErr3REQUIRES_VIOLATION, test_funErr1REQUIRES_VIOLATION, test_funErr5REQUIRES_VIOLATION, test_funErr0REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION]=== [2020-10-19 17:56:29,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 17:56:29,717 INFO L82 PathProgramCache]: Analyzing trace with hash 37200807, now seen corresponding path program 5 times [2020-10-19 17:56:29,718 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-19 17:56:29,718 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2142150397] [2020-10-19 17:56:29,719 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 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 17:56:29,911 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2020-10-19 17:56:29,911 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-19 17:56:29,918 INFO L263 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 26 conjunts are in the unsatisfiable core [2020-10-19 17:56:29,919 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 17:56:29,937 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 17:56:29,938 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-19 17:56:29,958 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-19 17:56:29,958 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-10-19 17:56:29,958 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:23, output treesize:22 [2020-10-19 17:56:30,230 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2142150397] [2020-10-19 17:56:30,230 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: no int: (_ BitVec 32) [2020-10-19 17:56:30,230 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2071857111] [2020-10-19 17:56:30,231 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 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 17:56:30,693 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2020-10-19 17:56:30,693 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-19 17:56:30,696 INFO L263 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 17 conjunts are in the unsatisfiable core [2020-10-19 17:56:30,697 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 17:56:31,108 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: no int: (_ BitVec 32) [2020-10-19 17:56:31,108 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1914765776] [2020-10-19 17:56:31,109 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 24 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 24 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-19 17:56:31,958 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2020-10-19 17:56:31,958 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-19 17:56:31,966 INFO L263 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 22 conjunts are in the unsatisfiable core [2020-10-19 17:56:31,968 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 17:56:31,974 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 17:56:31,974 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-19 17:56:31,998 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-19 17:56:31,999 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-10-19 17:56:31,999 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:23, output treesize:22 [2020-10-19 17:56:32,033 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2020-10-19 17:56:32,033 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-19 17:56:32,048 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-19 17:56:32,048 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-10-19 17:56:32,049 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:28, output treesize:21 [2020-10-19 17:56:32,334 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: no int: (_ BitVec 32) [2020-10-19 17:56:32,334 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 0 imperfect interpolant sequences. [2020-10-19 17:56:32,334 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [] total 0 [2020-10-19 17:56:32,334 ERROR L205 FreeRefinementEngine]: Strategy WOLF failed to provide any proof altough trace is infeasible [2020-10-19 17:56:32,335 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-19 17:56:32,952 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 mathsat -unsat_core_generation=3,24 z3 -smt2 -in SMTLIB2_COMPLIANT=true,23 cvc4 --incremental --print-success --lang smt --rewrite-divk [2020-10-19 17:56:32,980 WARN L238 ceAbstractionStarter]: Unable to decide correctness. Please check the following counterexample manually. [2020-10-19 17:56:32,980 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.10 05:56:32 BoogieIcfgContainer [2020-10-19 17:56:32,981 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-19 17:56:32,981 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-19 17:56:32,981 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-19 17:56:32,981 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-19 17:56:32,982 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 05:55:47" (3/4) ... [2020-10-19 17:56:32,986 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-10-19 17:56:32,986 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-19 17:56:32,988 INFO L168 Benchmark]: Toolchain (without parser) took 47077.97 ms. Allocated memory was 1.0 GB in the beginning and 1.4 GB in the end (delta: 351.8 MB). Free memory was 957.3 MB in the beginning and 1.2 GB in the end (delta: -236.9 MB). Peak memory consumption was 114.9 MB. Max. memory is 11.5 GB. [2020-10-19 17:56:32,988 INFO L168 Benchmark]: CDTParser took 0.29 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 17:56:32,989 INFO L168 Benchmark]: CACSL2BoogieTranslator took 725.55 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.8 MB). Free memory was 951.9 MB in the beginning and 1.1 GB in the end (delta: -157.3 MB). Peak memory consumption was 22.2 MB. Max. memory is 11.5 GB. [2020-10-19 17:56:32,989 INFO L168 Benchmark]: Boogie Preprocessor took 68.25 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 17:56:32,990 INFO L168 Benchmark]: RCFGBuilder took 768.70 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 52.0 MB). Peak memory consumption was 52.0 MB. Max. memory is 11.5 GB. [2020-10-19 17:56:32,990 INFO L168 Benchmark]: TraceAbstraction took 45496.91 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 216.0 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -137.0 MB). Peak memory consumption was 79.0 MB. Max. memory is 11.5 GB. [2020-10-19 17:56:32,990 INFO L168 Benchmark]: Witness Printer took 5.61 ms. Allocated memory is still 1.4 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2020-10-19 17:56:32,992 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 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 725.55 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.8 MB). Free memory was 951.9 MB in the beginning and 1.1 GB in the end (delta: -157.3 MB). Peak memory consumption was 22.2 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 68.25 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 768.70 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 52.0 MB). Peak memory consumption was 52.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 45496.91 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 216.0 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -137.0 MB). Peak memory consumption was 79.0 MB. Max. memory is 11.5 GB. * Witness Printer took 5.61 ms. Allocated memory is still 1.4 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 517]: 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: [L525] int array_size = __VERIFIER_nondet_int(); [L526] COND FALSE !(array_size < 1 || array_size >= 2147483647 / sizeof(int)) [L529] int* numbers = (int*) __builtin_alloca (array_size * sizeof(int)); [L531] int k = 0; [L531] COND TRUE k < array_size [L533] numbers[k] = __VERIFIER_nondet_int() [L531] k++ [L531] COND TRUE k < array_size [L533] numbers[k] = __VERIFIER_nondet_int() [L531] k++ [L531] COND TRUE k < array_size [L533] numbers[k] = __VERIFIER_nondet_int() [L531] k++ [L531] COND TRUE k < array_size [L533] numbers[k] = __VERIFIER_nondet_int() [L531] k++ [L531] COND FALSE !(k < array_size) [L536] CALL test_fun(numbers, array_size) [L514] int i; [L515] int res = 0; [L516] i = 0 [L516] COND TRUE i < N [L517] EXPR a[i] [L517] COND FALSE !(a[i] > 0) [L516] i++ [L516] COND TRUE i < N [L517] EXPR a[i] [L517] COND FALSE !(a[i] > 0) [L516] i++ [L516] COND TRUE i < N [L517] EXPR a[i] [L517] COND FALSE !(a[i] > 0) [L516] i++ [L516] COND TRUE i < N [L517] EXPR a[i] [L517] COND FALSE !(a[i] > 0) [L516] i++ [L516] COND TRUE i < N [L517] EXPR a[i] [L517] COND FALSE !(a[i] > 0) [L516] i++ [L516] COND TRUE i < N [L517] a[i] - StatisticsResult: Ultimate Automizer benchmark data CFG has 10 procedures, 60 locations, 9 error locations. Started 1 CEGAR loops. VerificationResult: UNKNOWN, OverallTime: 45.4s, OverallIterations: 16, TraceHistogramMax: 6, AutomataDifference: 22.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 395 SDtfs, 1087 SDslu, 1742 SDs, 0 SdLazy, 1858 SolverSat, 195 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 9.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 760 GetRequests, 535 SyntacticMatches, 12 SemanticMatches, 213 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1001 ImplicationChecksByTransitivity, 23.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=96occurred 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, 103 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 12.2s InterpolantComputationTime, 320 NumberOfCodeBlocks, 320 NumberOfCodeBlocksAsserted, 21 NumberOfCheckSat, 610 ConstructedInterpolants, 15 QuantifiedInterpolants, 157007 SizeOfPredicates, 60 NumberOfNonLiveVariables, 967 ConjunctsInSsa, 139 ConjunctsInUnsatCore, 30 InterpolantComputations, 14 PerfectInterpolantSequences, 152/364 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...