./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/array-memsafety/array03-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/array03-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 7541988e6da98f0cff4ac2bb6ea7091660417951 ............................................................................................................................. 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/array03-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 7541988e6da98f0cff4ac2bb6ea7091660417951 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 17:55:41,089 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-19 17:55:41,092 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-19 17:55:41,125 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-19 17:55:41,125 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-19 17:55:41,135 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-19 17:55:41,137 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-19 17:55:41,140 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-19 17:55:41,143 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-19 17:55:41,145 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-19 17:55:41,147 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-19 17:55:41,148 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-19 17:55:41,150 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-19 17:55:41,153 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-19 17:55:41,154 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-19 17:55:41,157 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-19 17:55:41,158 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-19 17:55:41,161 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-19 17:55:41,164 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-19 17:55:41,167 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-19 17:55:41,170 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-19 17:55:41,173 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-19 17:55:41,175 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-19 17:55:41,176 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-19 17:55:41,189 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-19 17:55:41,190 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-19 17:55:41,190 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-19 17:55:41,191 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-19 17:55:41,194 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-19 17:55:41,196 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-19 17:55:41,196 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-19 17:55:41,197 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-19 17:55:41,199 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-19 17:55:41,200 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-19 17:55:41,201 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-19 17:55:41,202 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-19 17:55:41,203 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-19 17:55:41,203 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-19 17:55:41,204 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-19 17:55:41,205 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-19 17:55:41,206 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-19 17:55:41,208 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2020-10-19 17:55:41,239 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-19 17:55:41,240 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-19 17:55:41,241 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-19 17:55:41,241 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-19 17:55:41,242 INFO L138 SettingsManager]: * Use SBE=true [2020-10-19 17:55:41,242 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-19 17:55:41,242 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-19 17:55:41,242 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-10-19 17:55:41,243 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-19 17:55:41,243 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-19 17:55:41,243 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-19 17:55:41,243 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-10-19 17:55:41,244 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-10-19 17:55:41,244 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2020-10-19 17:55:41,244 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-19 17:55:41,245 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-10-19 17:55:41,245 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-19 17:55:41,245 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-19 17:55:41,245 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-19 17:55:41,246 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-19 17:55:41,246 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-19 17:55:41,246 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-19 17:55:41,246 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-19 17:55:41,247 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-19 17:55:41,247 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-19 17:55:41,247 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-19 17:55:41,248 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-19 17:55:41,248 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-19 17:55:41,248 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 -> 7541988e6da98f0cff4ac2bb6ea7091660417951 [2020-10-19 17:55:41,557 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-19 17:55:41,575 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-19 17:55:41,580 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-19 17:55:41,582 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-19 17:55:41,585 INFO L275 PluginConnector]: CDTParser initialized [2020-10-19 17:55:41,586 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-memsafety/array03-alloca-2.i [2020-10-19 17:55:41,649 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7f079eb29/313645ae44ea4cb2b4bb68f24a1831bc/FLAG13f902ff1 [2020-10-19 17:55:42,100 INFO L306 CDTParser]: Found 1 translation units. [2020-10-19 17:55:42,101 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-memsafety/array03-alloca-2.i [2020-10-19 17:55:42,114 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7f079eb29/313645ae44ea4cb2b4bb68f24a1831bc/FLAG13f902ff1 [2020-10-19 17:55:42,469 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7f079eb29/313645ae44ea4cb2b4bb68f24a1831bc [2020-10-19 17:55:42,472 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-19 17:55:42,477 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-19 17:55:42,479 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-19 17:55:42,479 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-19 17:55:42,482 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-19 17:55:42,483 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 05:55:42" (1/1) ... [2020-10-19 17:55:42,487 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f46af51 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 17:55:42,488 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 05:55:42" (1/1) ... [2020-10-19 17:55:42,497 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-19 17:55:42,535 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-19 17:55:42,996 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-19 17:55:43,009 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 17:55:43,010 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@522d9b50 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 05:55:43, skipping insertion in model container [2020-10-19 17:55:43,010 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-19 17:55:43,011 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.preprocessor [2020-10-19 17:55:43,014 INFO L168 Benchmark]: Toolchain (without parser) took 539.73 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 161.0 MB). Free memory was 955.9 MB in the beginning and 1.2 GB in the end (delta: -194.1 MB). Peak memory consumption was 26.2 MB. Max. memory is 11.5 GB. [2020-10-19 17:55:43,015 INFO L168 Benchmark]: CDTParser took 0.22 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 17:55:43,016 INFO L168 Benchmark]: CACSL2BoogieTranslator took 532.28 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 161.0 MB). Free memory was 950.6 MB in the beginning and 1.2 GB in the end (delta: -199.4 MB). Peak memory consumption was 20.9 MB. Max. memory is 11.5 GB. [2020-10-19 17:55:43,019 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 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 532.28 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 161.0 MB). Free memory was 950.6 MB in the beginning and 1.2 GB in the end (delta: -199.4 MB). Peak memory consumption was 20.9 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 535]: 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 17:55:44,733 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-19 17:55:44,736 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-19 17:55:44,761 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-19 17:55:44,762 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-19 17:55:44,763 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-19 17:55:44,765 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-19 17:55:44,767 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-19 17:55:44,769 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-19 17:55:44,770 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-19 17:55:44,772 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-19 17:55:44,773 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-19 17:55:44,774 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-19 17:55:44,775 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-19 17:55:44,776 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-19 17:55:44,778 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-19 17:55:44,779 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-19 17:55:44,780 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-19 17:55:44,783 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-19 17:55:44,785 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-19 17:55:44,788 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-19 17:55:44,789 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-19 17:55:44,791 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-19 17:55:44,792 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-19 17:55:44,795 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-19 17:55:44,796 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-19 17:55:44,796 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-19 17:55:44,798 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-19 17:55:44,798 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-19 17:55:44,800 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-19 17:55:44,800 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-19 17:55:44,801 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-19 17:55:44,802 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-19 17:55:44,803 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-19 17:55:44,805 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-19 17:55:44,805 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-19 17:55:44,806 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-19 17:55:44,807 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-19 17:55:44,807 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-19 17:55:44,808 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-19 17:55:44,809 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-19 17:55:44,810 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2020-10-19 17:55:44,849 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-19 17:55:44,849 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-19 17:55:44,852 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-19 17:55:44,852 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-19 17:55:44,852 INFO L138 SettingsManager]: * Use SBE=true [2020-10-19 17:55:44,852 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-19 17:55:44,853 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-19 17:55:44,853 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-10-19 17:55:44,853 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-19 17:55:44,853 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-19 17:55:44,855 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-19 17:55:44,855 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-10-19 17:55:44,856 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-10-19 17:55:44,856 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2020-10-19 17:55:44,856 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-19 17:55:44,859 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-10-19 17:55:44,859 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-10-19 17:55:44,860 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-10-19 17:55:44,861 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-19 17:55:44,861 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-19 17:55:44,862 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-19 17:55:44,862 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-19 17:55:44,862 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-19 17:55:44,863 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-19 17:55:44,863 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-19 17:55:44,863 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-19 17:55:44,864 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-19 17:55:44,864 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-10-19 17:55:44,864 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-10-19 17:55:44,865 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-19 17:55:44,865 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-19 17:55:44,865 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 -> 7541988e6da98f0cff4ac2bb6ea7091660417951 [2020-10-19 17:55:45,189 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-19 17:55:45,209 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-19 17:55:45,214 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-19 17:55:45,220 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-19 17:55:45,223 INFO L275 PluginConnector]: CDTParser initialized [2020-10-19 17:55:45,224 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-memsafety/array03-alloca-2.i [2020-10-19 17:55:45,304 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0fae45252/0c3e44284ef24c978bdb4d3def25a1d8/FLAG49aea15d1 [2020-10-19 17:55:45,880 INFO L306 CDTParser]: Found 1 translation units. [2020-10-19 17:55:45,881 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-memsafety/array03-alloca-2.i [2020-10-19 17:55:45,901 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0fae45252/0c3e44284ef24c978bdb4d3def25a1d8/FLAG49aea15d1 [2020-10-19 17:55:46,151 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0fae45252/0c3e44284ef24c978bdb4d3def25a1d8 [2020-10-19 17:55:46,154 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-19 17:55:46,161 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-19 17:55:46,163 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-19 17:55:46,163 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-19 17:55:46,167 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-19 17:55:46,168 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 05:55:46" (1/1) ... [2020-10-19 17:55:46,171 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6da9ddb9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 05:55:46, skipping insertion in model container [2020-10-19 17:55:46,171 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 05:55:46" (1/1) ... [2020-10-19 17:55:46,179 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-19 17:55:46,226 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-19 17:55:46,629 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-19 17:55:46,645 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2020-10-19 17:55:46,652 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-19 17:55:46,687 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-19 17:55:46,693 INFO L203 MainTranslator]: Completed pre-run [2020-10-19 17:55:46,738 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-19 17:55:46,799 INFO L208 MainTranslator]: Completed translation [2020-10-19 17:55:46,800 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 05:55:46 WrapperNode [2020-10-19 17:55:46,800 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-19 17:55:46,801 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-19 17:55:46,801 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-19 17:55:46,801 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-19 17:55:46,816 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 17:55:46,816 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 17:55:46,836 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 17:55:46,836 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 17:55:46,857 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 17:55:46,869 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 17:55:46,875 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 17:55:46,885 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-19 17:55:46,886 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-19 17:55:46,886 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-19 17:55:46,886 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-19 17:55:46,887 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 17:55:46,951 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-19 17:55:46,951 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-19 17:55:46,952 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.setCurrentRoundingMode [2020-10-19 17:55:46,952 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2020-10-19 17:55:46,952 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2020-10-19 17:55:46,952 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2020-10-19 17:55:46,953 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2020-10-19 17:55:46,953 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2020-10-19 17:55:46,953 INFO L138 BoogieDeclarations]: Found implementation of procedure test_fun [2020-10-19 17:55:46,953 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-19 17:55:46,953 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-10-19 17:55:46,954 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-10-19 17:55:46,954 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-10-19 17:55:46,954 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-10-19 17:55:46,954 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-10-19 17:55:46,954 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-10-19 17:55:46,955 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-10-19 17:55:46,955 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-10-19 17:55:46,955 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-10-19 17:55:46,955 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-10-19 17:55:46,955 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-10-19 17:55:46,956 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-10-19 17:55:46,956 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-10-19 17:55:46,956 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-10-19 17:55:46,956 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-10-19 17:55:46,957 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-10-19 17:55:46,957 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2020-10-19 17:55:46,957 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2020-10-19 17:55:46,957 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2020-10-19 17:55:46,957 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2020-10-19 17:55:46,958 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2020-10-19 17:55:46,958 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-10-19 17:55:46,958 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-10-19 17:55:46,958 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-10-19 17:55:46,959 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-10-19 17:55:46,959 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-10-19 17:55:46,959 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-10-19 17:55:46,959 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-10-19 17:55:46,959 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-10-19 17:55:46,960 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-10-19 17:55:46,960 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-10-19 17:55:46,960 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-10-19 17:55:46,960 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-10-19 17:55:46,960 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-10-19 17:55:46,961 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-10-19 17:55:46,961 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-10-19 17:55:46,961 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-10-19 17:55:46,961 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-10-19 17:55:46,962 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-10-19 17:55:46,962 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-10-19 17:55:46,962 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-10-19 17:55:46,962 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-10-19 17:55:46,962 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-10-19 17:55:46,963 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-10-19 17:55:46,963 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-10-19 17:55:46,963 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-10-19 17:55:46,963 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-10-19 17:55:46,963 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-10-19 17:55:46,964 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-10-19 17:55:46,964 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-10-19 17:55:46,964 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-10-19 17:55:46,964 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-10-19 17:55:46,965 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-10-19 17:55:46,965 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-10-19 17:55:46,965 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-10-19 17:55:46,965 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-19 17:55:46,965 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-10-19 17:55:46,966 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-10-19 17:55:46,966 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-19 17:55:46,966 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-10-19 17:55:46,966 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-10-19 17:55:46,967 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-10-19 17:55:46,967 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2020-10-19 17:55:46,967 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-19 17:55:46,967 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-10-19 17:55:46,967 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2020-10-19 17:55:46,968 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-10-19 17:55:46,968 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-19 17:55:46,968 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2020-10-19 17:55:46,968 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-10-19 17:55:46,969 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-10-19 17:55:46,969 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-10-19 17:55:46,969 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-10-19 17:55:46,969 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-10-19 17:55:46,970 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-10-19 17:55:46,970 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-10-19 17:55:46,970 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-10-19 17:55:46,970 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-10-19 17:55:46,971 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-10-19 17:55:46,971 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-10-19 17:55:46,971 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-10-19 17:55:46,971 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-10-19 17:55:46,971 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-10-19 17:55:46,972 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-10-19 17:55:46,972 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-10-19 17:55:46,972 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-10-19 17:55:46,972 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-10-19 17:55:46,973 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-10-19 17:55:46,973 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-10-19 17:55:46,973 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-10-19 17:55:46,973 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-10-19 17:55:46,974 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-10-19 17:55:46,974 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-10-19 17:55:46,974 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-10-19 17:55:46,974 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-10-19 17:55:46,975 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-10-19 17:55:46,975 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-10-19 17:55:46,975 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-10-19 17:55:46,975 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-10-19 17:55:46,975 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-10-19 17:55:46,976 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-10-19 17:55:46,976 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-10-19 17:55:46,976 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-10-19 17:55:46,976 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-10-19 17:55:46,977 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-10-19 17:55:46,977 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-10-19 17:55:46,977 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-10-19 17:55:46,977 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-19 17:55:46,978 INFO L130 BoogieDeclarations]: Found specification of procedure test_fun [2020-10-19 17:55:46,978 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-10-19 17:55:46,978 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-10-19 17:55:46,978 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-19 17:55:46,978 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-19 17:55:46,979 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-19 17:55:46,979 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-19 17:55:46,979 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-19 17:55:46,979 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.setCurrentRoundingMode [2020-10-19 17:55:47,822 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-19 17:55:47,822 INFO L298 CfgBuilder]: Removed 3 assume(true) statements. [2020-10-19 17:55:47,824 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 05:55:47 BoogieIcfgContainer [2020-10-19 17:55:47,824 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-19 17:55:47,826 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-19 17:55:47,826 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-19 17:55:47,829 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-19 17:55:47,830 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.10 05:55:46" (1/3) ... [2020-10-19 17:55:47,831 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58e04514 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 17:55:47,831 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 17:55:47,831 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58e04514 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 17:55:47,832 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 17:55:47,833 INFO L111 eAbstractionObserver]: Analyzing ICFG array03-alloca-2.i [2020-10-19 17:55:47,846 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-19 17:55:47,853 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 17 error locations. [2020-10-19 17:55:47,867 INFO L253 AbstractCegarLoop]: Starting to check reachability of 17 error locations. [2020-10-19 17:55:47,889 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-19 17:55:47,890 INFO L378 AbstractCegarLoop]: Hoare is false [2020-10-19 17:55:47,890 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-19 17:55:47,890 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-19 17:55:47,891 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-19 17:55:47,891 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-19 17:55:47,891 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-19 17:55:47,891 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-19 17:55:47,909 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states. [2020-10-19 17:55:47,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-19 17:55:47,920 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 17:55:47,921 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 17:55:47,921 INFO L429 AbstractCegarLoop]: === Iteration 1 === [test_funErr4REQUIRES_VIOLATION, test_funErr2REQUIRES_VIOLATION, test_funErr13REQUIRES_VIOLATION, test_funErr3REQUIRES_VIOLATION, test_funErr6REQUIRES_VIOLATION, test_funErr7REQUIRES_VIOLATION, test_funErr5REQUIRES_VIOLATION, test_funErr9REQUIRES_VIOLATION, test_funErr8REQUIRES_VIOLATION, test_funErr1REQUIRES_VIOLATION, test_funErr12REQUIRES_VIOLATION, test_funErr10REQUIRES_VIOLATION, test_funErr0REQUIRES_VIOLATION, test_funErr11REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION]=== [2020-10-19 17:55:47,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 17:55:47,928 INFO L82 PathProgramCache]: Analyzing trace with hash 1745891075, now seen corresponding path program 1 times [2020-10-19 17:55:47,942 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-19 17:55:47,943 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [656613181] [2020-10-19 17:55:47,943 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 17:55:48,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 17:55:48,096 INFO L263 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 7 conjunts are in the unsatisfiable core [2020-10-19 17:55:48,102 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 17:55:48,212 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 17:55:48,213 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-19 17:55:48,224 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-19 17:55:48,225 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-10-19 17:55:48,226 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:13, output treesize:12 [2020-10-19 17:55:48,245 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 17:55:48,245 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-19 17:55:48,407 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 17:55:48,411 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [656613181] [2020-10-19 17:55:48,412 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-19 17:55:48,412 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2020-10-19 17:55:48,413 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1623178654] [2020-10-19 17:55:48,421 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-19 17:55:48,421 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-19 17:55:48,436 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-19 17:55:48,438 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-19 17:55:48,440 INFO L87 Difference]: Start difference. First operand 53 states. Second operand 6 states. [2020-10-19 17:55:49,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 17:55:49,238 INFO L93 Difference]: Finished difference Result 78 states and 87 transitions. [2020-10-19 17:55:49,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-19 17:55:49,240 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 10 [2020-10-19 17:55:49,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 17:55:49,260 INFO L225 Difference]: With dead ends: 78 [2020-10-19 17:55:49,261 INFO L226 Difference]: Without dead ends: 73 [2020-10-19 17:55:49,264 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 17:55:49,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2020-10-19 17:55:49,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 54. [2020-10-19 17:55:49,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2020-10-19 17:55:49,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 61 transitions. [2020-10-19 17:55:49,355 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 61 transitions. Word has length 10 [2020-10-19 17:55:49,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 17:55:49,356 INFO L481 AbstractCegarLoop]: Abstraction has 54 states and 61 transitions. [2020-10-19 17:55:49,356 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-19 17:55:49,356 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 61 transitions. [2020-10-19 17:55:49,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-19 17:55:49,357 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 17:55:49,358 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 17:55:49,570 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-10-19 17:55:49,571 INFO L429 AbstractCegarLoop]: === Iteration 2 === [test_funErr4REQUIRES_VIOLATION, test_funErr2REQUIRES_VIOLATION, test_funErr13REQUIRES_VIOLATION, test_funErr3REQUIRES_VIOLATION, test_funErr6REQUIRES_VIOLATION, test_funErr7REQUIRES_VIOLATION, test_funErr5REQUIRES_VIOLATION, test_funErr9REQUIRES_VIOLATION, test_funErr8REQUIRES_VIOLATION, test_funErr1REQUIRES_VIOLATION, test_funErr12REQUIRES_VIOLATION, test_funErr10REQUIRES_VIOLATION, test_funErr0REQUIRES_VIOLATION, test_funErr11REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION]=== [2020-10-19 17:55:49,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 17:55:49,572 INFO L82 PathProgramCache]: Analyzing trace with hash 1745891074, now seen corresponding path program 1 times [2020-10-19 17:55:49,573 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-19 17:55:49,573 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [546295660] [2020-10-19 17:55:49,574 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 17:55:49,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 17:55:49,677 INFO L263 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 3 conjunts are in the unsatisfiable core [2020-10-19 17:55:49,680 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 17:55:49,707 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 17:55:49,707 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-19 17:55:49,714 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-19 17:55:49,715 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-10-19 17:55:49,715 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2020-10-19 17:55:49,726 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 17:55:49,727 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-19 17:55:49,754 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 17:55:49,756 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [546295660] [2020-10-19 17:55:49,756 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-19 17:55:49,756 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-10-19 17:55:49,756 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [302290501] [2020-10-19 17:55:49,760 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 17:55:49,760 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-19 17:55:49,761 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 17:55:49,761 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 17:55:49,761 INFO L87 Difference]: Start difference. First operand 54 states and 61 transitions. Second operand 3 states. [2020-10-19 17:55:49,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 17:55:49,913 INFO L93 Difference]: Finished difference Result 53 states and 59 transitions. [2020-10-19 17:55:49,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 17:55:49,913 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2020-10-19 17:55:49,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 17:55:49,915 INFO L225 Difference]: With dead ends: 53 [2020-10-19 17:55:49,915 INFO L226 Difference]: Without dead ends: 53 [2020-10-19 17:55:49,916 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 17:55:49,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2020-10-19 17:55:49,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2020-10-19 17:55:49,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2020-10-19 17:55:49,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 59 transitions. [2020-10-19 17:55:49,923 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 59 transitions. Word has length 10 [2020-10-19 17:55:49,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 17:55:49,924 INFO L481 AbstractCegarLoop]: Abstraction has 53 states and 59 transitions. [2020-10-19 17:55:49,924 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 17:55:49,924 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 59 transitions. [2020-10-19 17:55:49,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-19 17:55:49,925 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 17:55:49,925 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 17:55:50,133 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-10-19 17:55:50,134 INFO L429 AbstractCegarLoop]: === Iteration 3 === [test_funErr4REQUIRES_VIOLATION, test_funErr2REQUIRES_VIOLATION, test_funErr13REQUIRES_VIOLATION, test_funErr3REQUIRES_VIOLATION, test_funErr6REQUIRES_VIOLATION, test_funErr7REQUIRES_VIOLATION, test_funErr5REQUIRES_VIOLATION, test_funErr9REQUIRES_VIOLATION, test_funErr8REQUIRES_VIOLATION, test_funErr1REQUIRES_VIOLATION, test_funErr12REQUIRES_VIOLATION, test_funErr10REQUIRES_VIOLATION, test_funErr0REQUIRES_VIOLATION, test_funErr11REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION]=== [2020-10-19 17:55:50,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 17:55:50,135 INFO L82 PathProgramCache]: Analyzing trace with hash 1562637391, now seen corresponding path program 1 times [2020-10-19 17:55:50,137 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-19 17:55:50,137 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1996401042] [2020-10-19 17:55:50,137 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 17:55:50,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 17:55:50,233 INFO L263 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 5 conjunts are in the unsatisfiable core [2020-10-19 17:55:50,235 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 17:55:50,251 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 17:55:50,252 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-19 17:55:50,258 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-19 17:55:50,259 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-10-19 17:55:50,259 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2020-10-19 17:55:50,279 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 17:55:50,279 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-19 17:55:50,292 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 17:55:50,292 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1996401042] [2020-10-19 17:55:50,293 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-19 17:55:50,293 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2020-10-19 17:55:50,293 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1014463862] [2020-10-19 17:55:50,294 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-19 17:55:50,294 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-19 17:55:50,295 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-19 17:55:50,295 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-19 17:55:50,295 INFO L87 Difference]: Start difference. First operand 53 states and 59 transitions. Second operand 5 states. [2020-10-19 17:55:50,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 17:55:50,567 INFO L93 Difference]: Finished difference Result 46 states and 52 transitions. [2020-10-19 17:55:50,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-19 17:55:50,568 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-10-19 17:55:50,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 17:55:50,570 INFO L225 Difference]: With dead ends: 46 [2020-10-19 17:55:50,571 INFO L226 Difference]: Without dead ends: 46 [2020-10-19 17:55:50,571 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 17:55:50,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2020-10-19 17:55:50,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2020-10-19 17:55:50,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2020-10-19 17:55:50,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 52 transitions. [2020-10-19 17:55:50,580 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 52 transitions. Word has length 13 [2020-10-19 17:55:50,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 17:55:50,580 INFO L481 AbstractCegarLoop]: Abstraction has 46 states and 52 transitions. [2020-10-19 17:55:50,581 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-19 17:55:50,581 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 52 transitions. [2020-10-19 17:55:50,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-19 17:55:50,581 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 17:55:50,582 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 17:55:50,793 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-10-19 17:55:50,794 INFO L429 AbstractCegarLoop]: === Iteration 4 === [test_funErr4REQUIRES_VIOLATION, test_funErr2REQUIRES_VIOLATION, test_funErr13REQUIRES_VIOLATION, test_funErr3REQUIRES_VIOLATION, test_funErr6REQUIRES_VIOLATION, test_funErr7REQUIRES_VIOLATION, test_funErr5REQUIRES_VIOLATION, test_funErr9REQUIRES_VIOLATION, test_funErr8REQUIRES_VIOLATION, test_funErr1REQUIRES_VIOLATION, test_funErr12REQUIRES_VIOLATION, test_funErr10REQUIRES_VIOLATION, test_funErr0REQUIRES_VIOLATION, test_funErr11REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION]=== [2020-10-19 17:55:50,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 17:55:50,795 INFO L82 PathProgramCache]: Analyzing trace with hash 1562637392, now seen corresponding path program 1 times [2020-10-19 17:55:50,796 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-19 17:55:50,796 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1300631042] [2020-10-19 17:55:50,797 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 17:55:50,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 17:55:50,896 INFO L263 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 12 conjunts are in the unsatisfiable core [2020-10-19 17:55:50,898 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 17:55:50,928 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 17:55:50,928 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-19 17:55:50,942 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-19 17:55:50,945 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1300631042] [2020-10-19 17:55:50,946 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: no int: (_ BitVec 32) [2020-10-19 17:55:50,946 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [160302585] [2020-10-19 17:55:50,946 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 17:55:51,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 17:55:51,118 INFO L263 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-19 17:55:51,119 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 17:55:51,145 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 17:55:51,145 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-19 17:55:51,171 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 17:55:51,172 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-19 17:55:51,172 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2020-10-19 17:55:51,172 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [273982827] [2020-10-19 17:55:51,173 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-19 17:55:51,173 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-19 17:55:51,173 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-19 17:55:51,173 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-19 17:55:51,174 INFO L87 Difference]: Start difference. First operand 46 states and 52 transitions. Second operand 6 states. [2020-10-19 17:55:51,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 17:55:51,254 INFO L93 Difference]: Finished difference Result 48 states and 53 transitions. [2020-10-19 17:55:51,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-19 17:55:51,255 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 13 [2020-10-19 17:55:51,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 17:55:51,256 INFO L225 Difference]: With dead ends: 48 [2020-10-19 17:55:51,256 INFO L226 Difference]: Without dead ends: 48 [2020-10-19 17:55:51,257 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 17:55:51,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2020-10-19 17:55:51,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 44. [2020-10-19 17:55:51,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2020-10-19 17:55:51,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 49 transitions. [2020-10-19 17:55:51,262 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 49 transitions. Word has length 13 [2020-10-19 17:55:51,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 17:55:51,263 INFO L481 AbstractCegarLoop]: Abstraction has 44 states and 49 transitions. [2020-10-19 17:55:51,263 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-19 17:55:51,263 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 49 transitions. [2020-10-19 17:55:51,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-19 17:55:51,264 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 17:55:51,264 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 17:55:51,666 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 17:55:51,668 INFO L429 AbstractCegarLoop]: === Iteration 5 === [test_funErr4REQUIRES_VIOLATION, test_funErr2REQUIRES_VIOLATION, test_funErr13REQUIRES_VIOLATION, test_funErr3REQUIRES_VIOLATION, test_funErr6REQUIRES_VIOLATION, test_funErr7REQUIRES_VIOLATION, test_funErr5REQUIRES_VIOLATION, test_funErr9REQUIRES_VIOLATION, test_funErr8REQUIRES_VIOLATION, test_funErr1REQUIRES_VIOLATION, test_funErr12REQUIRES_VIOLATION, test_funErr10REQUIRES_VIOLATION, test_funErr0REQUIRES_VIOLATION, test_funErr11REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION]=== [2020-10-19 17:55:51,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 17:55:51,669 INFO L82 PathProgramCache]: Analyzing trace with hash 1988481478, now seen corresponding path program 1 times [2020-10-19 17:55:51,670 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-19 17:55:51,670 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1077966637] [2020-10-19 17:55:51,670 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 17:55:51,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 17:55:51,787 INFO L263 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-19 17:55:51,789 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 17:55:51,824 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 17:55:51,824 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-19 17:55:51,875 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 17:55:51,875 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1077966637] [2020-10-19 17:55:51,875 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-19 17:55:51,876 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2020-10-19 17:55:51,876 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1434446025] [2020-10-19 17:55:51,876 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-19 17:55:51,877 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-19 17:55:51,877 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-19 17:55:51,878 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2020-10-19 17:55:51,878 INFO L87 Difference]: Start difference. First operand 44 states and 49 transitions. Second operand 8 states. [2020-10-19 17:55:51,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 17:55:51,956 INFO L93 Difference]: Finished difference Result 54 states and 59 transitions. [2020-10-19 17:55:51,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-19 17:55:51,957 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 14 [2020-10-19 17:55:51,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 17:55:51,958 INFO L225 Difference]: With dead ends: 54 [2020-10-19 17:55:51,958 INFO L226 Difference]: Without dead ends: 54 [2020-10-19 17:55:51,959 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 17:55:51,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2020-10-19 17:55:51,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 50. [2020-10-19 17:55:51,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2020-10-19 17:55:51,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 55 transitions. [2020-10-19 17:55:51,964 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 55 transitions. Word has length 14 [2020-10-19 17:55:51,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 17:55:51,965 INFO L481 AbstractCegarLoop]: Abstraction has 50 states and 55 transitions. [2020-10-19 17:55:51,965 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-19 17:55:51,965 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 55 transitions. [2020-10-19 17:55:51,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-19 17:55:51,966 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 17:55:51,966 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 17:55:52,169 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 mathsat -unsat_core_generation=3 [2020-10-19 17:55:52,170 INFO L429 AbstractCegarLoop]: === Iteration 6 === [test_funErr4REQUIRES_VIOLATION, test_funErr2REQUIRES_VIOLATION, test_funErr13REQUIRES_VIOLATION, test_funErr3REQUIRES_VIOLATION, test_funErr6REQUIRES_VIOLATION, test_funErr7REQUIRES_VIOLATION, test_funErr5REQUIRES_VIOLATION, test_funErr9REQUIRES_VIOLATION, test_funErr8REQUIRES_VIOLATION, test_funErr1REQUIRES_VIOLATION, test_funErr12REQUIRES_VIOLATION, test_funErr10REQUIRES_VIOLATION, test_funErr0REQUIRES_VIOLATION, test_funErr11REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION]=== [2020-10-19 17:55:52,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 17:55:52,170 INFO L82 PathProgramCache]: Analyzing trace with hash 1179134852, now seen corresponding path program 1 times [2020-10-19 17:55:52,171 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-19 17:55:52,172 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [380293265] [2020-10-19 17:55:52,172 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 17:55:52,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 17:55:52,252 INFO L263 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 10 conjunts are in the unsatisfiable core [2020-10-19 17:55:52,253 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 17:55:52,279 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 17:55:52,280 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-19 17:55:52,297 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-19 17:55:52,298 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-10-19 17:55:52,298 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:23, output treesize:22 [2020-10-19 17:55:52,400 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 17:55:52,401 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-19 17:55:52,792 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 17:55:52,793 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [380293265] [2020-10-19 17:55:52,793 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-19 17:55:52,793 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2020-10-19 17:55:52,793 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1272626822] [2020-10-19 17:55:52,794 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-19 17:55:52,794 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-19 17:55:52,794 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-19 17:55:52,794 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2020-10-19 17:55:52,794 INFO L87 Difference]: Start difference. First operand 50 states and 55 transitions. Second operand 10 states. [2020-10-19 17:55:53,182 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 32 [2020-10-19 17:55:53,418 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 28 [2020-10-19 17:55:54,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 17:55:54,072 INFO L93 Difference]: Finished difference Result 70 states and 78 transitions. [2020-10-19 17:55:54,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-19 17:55:54,075 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 14 [2020-10-19 17:55:54,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 17:55:54,076 INFO L225 Difference]: With dead ends: 70 [2020-10-19 17:55:54,076 INFO L226 Difference]: Without dead ends: 70 [2020-10-19 17:55:54,077 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=78, Invalid=132, Unknown=0, NotChecked=0, Total=210 [2020-10-19 17:55:54,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2020-10-19 17:55:54,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 62. [2020-10-19 17:55:54,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 62 states. [2020-10-19 17:55:54,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 70 transitions. [2020-10-19 17:55:54,084 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 70 transitions. Word has length 14 [2020-10-19 17:55:54,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 17:55:54,086 INFO L481 AbstractCegarLoop]: Abstraction has 62 states and 70 transitions. [2020-10-19 17:55:54,087 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-19 17:55:54,087 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 70 transitions. [2020-10-19 17:55:54,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-19 17:55:54,088 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 17:55:54,088 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 17:55:54,292 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 mathsat -unsat_core_generation=3 [2020-10-19 17:55:54,293 INFO L429 AbstractCegarLoop]: === Iteration 7 === [test_funErr4REQUIRES_VIOLATION, test_funErr2REQUIRES_VIOLATION, test_funErr13REQUIRES_VIOLATION, test_funErr3REQUIRES_VIOLATION, test_funErr6REQUIRES_VIOLATION, test_funErr7REQUIRES_VIOLATION, test_funErr5REQUIRES_VIOLATION, test_funErr9REQUIRES_VIOLATION, test_funErr8REQUIRES_VIOLATION, test_funErr1REQUIRES_VIOLATION, test_funErr12REQUIRES_VIOLATION, test_funErr10REQUIRES_VIOLATION, test_funErr0REQUIRES_VIOLATION, test_funErr11REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION]=== [2020-10-19 17:55:54,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 17:55:54,294 INFO L82 PathProgramCache]: Analyzing trace with hash -1631633365, now seen corresponding path program 1 times [2020-10-19 17:55:54,294 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-19 17:55:54,295 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1772608462] [2020-10-19 17:55:54,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 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 17:55:54,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 17:55:54,384 INFO L263 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 11 conjunts are in the unsatisfiable core [2020-10-19 17:55:54,386 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 17:55:54,406 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 17:55:54,406 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-19 17:55:54,412 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-19 17:55:54,412 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-10-19 17:55:54,413 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2020-10-19 17:55:54,456 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 17:55:54,456 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-19 17:55:54,705 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 17:55:54,706 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1772608462] [2020-10-19 17:55:54,706 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-19 17:55:54,706 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 9 [2020-10-19 17:55:54,706 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1657995811] [2020-10-19 17:55:54,707 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-19 17:55:54,707 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-19 17:55:54,707 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-19 17:55:54,708 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-10-19 17:55:54,708 INFO L87 Difference]: Start difference. First operand 62 states and 70 transitions. Second operand 10 states. [2020-10-19 17:55:55,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 17:55:55,684 INFO L93 Difference]: Finished difference Result 100 states and 116 transitions. [2020-10-19 17:55:55,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-19 17:55:55,686 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 17 [2020-10-19 17:55:55,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 17:55:55,691 INFO L225 Difference]: With dead ends: 100 [2020-10-19 17:55:55,692 INFO L226 Difference]: Without dead ends: 100 [2020-10-19 17:55:55,692 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=50, Invalid=160, Unknown=0, NotChecked=0, Total=210 [2020-10-19 17:55:55,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2020-10-19 17:55:55,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 58. [2020-10-19 17:55:55,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2020-10-19 17:55:55,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 67 transitions. [2020-10-19 17:55:55,708 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 67 transitions. Word has length 17 [2020-10-19 17:55:55,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 17:55:55,711 INFO L481 AbstractCegarLoop]: Abstraction has 58 states and 67 transitions. [2020-10-19 17:55:55,711 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-19 17:55:55,711 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 67 transitions. [2020-10-19 17:55:55,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-10-19 17:55:55,712 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 17:55:55,712 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 17:55:55,925 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 mathsat -unsat_core_generation=3 [2020-10-19 17:55:55,926 INFO L429 AbstractCegarLoop]: === Iteration 8 === [test_funErr4REQUIRES_VIOLATION, test_funErr2REQUIRES_VIOLATION, test_funErr13REQUIRES_VIOLATION, test_funErr3REQUIRES_VIOLATION, test_funErr6REQUIRES_VIOLATION, test_funErr7REQUIRES_VIOLATION, test_funErr5REQUIRES_VIOLATION, test_funErr9REQUIRES_VIOLATION, test_funErr8REQUIRES_VIOLATION, test_funErr1REQUIRES_VIOLATION, test_funErr12REQUIRES_VIOLATION, test_funErr10REQUIRES_VIOLATION, test_funErr0REQUIRES_VIOLATION, test_funErr11REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION]=== [2020-10-19 17:55:55,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 17:55:55,927 INFO L82 PathProgramCache]: Analyzing trace with hash -1844950364, now seen corresponding path program 1 times [2020-10-19 17:55:55,927 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-19 17:55:55,928 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2041953258] [2020-10-19 17:55:55,928 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 17:55:56,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 17:55:56,009 INFO L263 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 5 conjunts are in the unsatisfiable core [2020-10-19 17:55:56,012 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 17:55:56,018 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2041953258] [2020-10-19 17:55:56,018 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: no int: (_ BitVec 32) [2020-10-19 17:55:56,019 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [123647167] [2020-10-19 17:55:56,019 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 17:55:56,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 17:55:56,189 INFO L263 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 5 conjunts are in the unsatisfiable core [2020-10-19 17:55:56,190 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 17:55:56,194 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: no int: (_ BitVec 32) [2020-10-19 17:55:56,195 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [270962595] [2020-10-19 17:55:56,195 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 17:55:56,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 17:55:56,282 INFO L263 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 5 conjunts are in the unsatisfiable core [2020-10-19 17:55:56,283 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 17:55:56,315 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 17:55:56,315 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-19 17:55:56,383 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 17:55:56,383 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-19 17:55:56,383 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 7 [2020-10-19 17:55:56,383 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1993313795] [2020-10-19 17:55:56,384 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-19 17:55:56,384 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-19 17:55:56,384 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-19 17:55:56,385 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-19 17:55:56,385 INFO L87 Difference]: Start difference. First operand 58 states and 67 transitions. Second operand 7 states. [2020-10-19 17:55:56,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 17:55:56,562 INFO L93 Difference]: Finished difference Result 77 states and 88 transitions. [2020-10-19 17:55:56,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-19 17:55:56,564 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 20 [2020-10-19 17:55:56,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 17:55:56,565 INFO L225 Difference]: With dead ends: 77 [2020-10-19 17:55:56,567 INFO L226 Difference]: Without dead ends: 75 [2020-10-19 17:55:56,567 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 60 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 17:55:56,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2020-10-19 17:55:56,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 58. [2020-10-19 17:55:56,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2020-10-19 17:55:56,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 66 transitions. [2020-10-19 17:55:56,575 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 66 transitions. Word has length 20 [2020-10-19 17:55:56,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 17:55:56,575 INFO L481 AbstractCegarLoop]: Abstraction has 58 states and 66 transitions. [2020-10-19 17:55:56,575 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-19 17:55:56,575 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 66 transitions. [2020-10-19 17:55:56,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-10-19 17:55:56,577 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 17:55:56,577 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, 1, 1, 1] [2020-10-19 17:55:57,178 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 17:55:57,179 INFO L429 AbstractCegarLoop]: === Iteration 9 === [test_funErr4REQUIRES_VIOLATION, test_funErr2REQUIRES_VIOLATION, test_funErr13REQUIRES_VIOLATION, test_funErr3REQUIRES_VIOLATION, test_funErr6REQUIRES_VIOLATION, test_funErr7REQUIRES_VIOLATION, test_funErr5REQUIRES_VIOLATION, test_funErr9REQUIRES_VIOLATION, test_funErr8REQUIRES_VIOLATION, test_funErr1REQUIRES_VIOLATION, test_funErr12REQUIRES_VIOLATION, test_funErr10REQUIRES_VIOLATION, test_funErr0REQUIRES_VIOLATION, test_funErr11REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION]=== [2020-10-19 17:55:57,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 17:55:57,180 INFO L82 PathProgramCache]: Analyzing trace with hash -1770810992, now seen corresponding path program 1 times [2020-10-19 17:55:57,181 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-19 17:55:57,181 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1496973954] [2020-10-19 17:55:57,182 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 17:55:57,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 17:55:57,300 INFO L263 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 6 conjunts are in the unsatisfiable core [2020-10-19 17:55:57,302 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 17:55:57,368 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 17:55:57,368 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-19 17:55:57,504 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 17:55:57,504 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1496973954] [2020-10-19 17:55:57,504 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-19 17:55:57,504 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 7] total 11 [2020-10-19 17:55:57,504 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1623192821] [2020-10-19 17:55:57,505 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-19 17:55:57,505 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-19 17:55:57,505 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-19 17:55:57,506 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2020-10-19 17:55:57,506 INFO L87 Difference]: Start difference. First operand 58 states and 66 transitions. Second operand 11 states. [2020-10-19 17:55:57,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 17:55:57,742 INFO L93 Difference]: Finished difference Result 81 states and 91 transitions. [2020-10-19 17:55:57,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-19 17:55:57,744 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 24 [2020-10-19 17:55:57,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 17:55:57,745 INFO L225 Difference]: With dead ends: 81 [2020-10-19 17:55:57,745 INFO L226 Difference]: Without dead ends: 81 [2020-10-19 17:55:57,745 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2020-10-19 17:55:57,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2020-10-19 17:55:57,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 78. [2020-10-19 17:55:57,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 78 states. [2020-10-19 17:55:57,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 89 transitions. [2020-10-19 17:55:57,751 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 89 transitions. Word has length 24 [2020-10-19 17:55:57,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 17:55:57,752 INFO L481 AbstractCegarLoop]: Abstraction has 78 states and 89 transitions. [2020-10-19 17:55:57,752 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-19 17:55:57,752 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 89 transitions. [2020-10-19 17:55:57,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-10-19 17:55:57,753 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 17:55:57,754 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, 1, 1, 1] [2020-10-19 17:55:57,961 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 mathsat -unsat_core_generation=3 [2020-10-19 17:55:57,962 INFO L429 AbstractCegarLoop]: === Iteration 10 === [test_funErr4REQUIRES_VIOLATION, test_funErr2REQUIRES_VIOLATION, test_funErr13REQUIRES_VIOLATION, test_funErr3REQUIRES_VIOLATION, test_funErr6REQUIRES_VIOLATION, test_funErr7REQUIRES_VIOLATION, test_funErr5REQUIRES_VIOLATION, test_funErr9REQUIRES_VIOLATION, test_funErr8REQUIRES_VIOLATION, test_funErr1REQUIRES_VIOLATION, test_funErr12REQUIRES_VIOLATION, test_funErr10REQUIRES_VIOLATION, test_funErr0REQUIRES_VIOLATION, test_funErr11REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION]=== [2020-10-19 17:55:57,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 17:55:57,963 INFO L82 PathProgramCache]: Analyzing trace with hash 530011598, now seen corresponding path program 1 times [2020-10-19 17:55:57,963 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-19 17:55:57,965 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [503997810] [2020-10-19 17:55:57,965 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 17:55:58,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 17:55:58,082 INFO L263 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 16 conjunts are in the unsatisfiable core [2020-10-19 17:55:58,100 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 17:55:58,133 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 17:55:58,133 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-19 17:55:58,147 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-19 17:55:58,148 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-10-19 17:55:58,148 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:20, output treesize:19 [2020-10-19 17:55:58,323 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 17:55:58,324 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-19 17:55:58,542 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-10-19 17:56:00,362 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 17:56:00,363 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [503997810] [2020-10-19 17:56:00,363 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-19 17:56:00,363 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8] total 14 [2020-10-19 17:56:00,363 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [230756314] [2020-10-19 17:56:00,364 INFO L461 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-19 17:56:00,364 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-19 17:56:00,365 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-19 17:56:00,365 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=166, Unknown=0, NotChecked=0, Total=210 [2020-10-19 17:56:00,365 INFO L87 Difference]: Start difference. First operand 78 states and 89 transitions. Second operand 15 states. [2020-10-19 17:56:02,040 WARN L193 SmtUtils]: Spent 599.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 48 [2020-10-19 17:56:03,151 WARN L193 SmtUtils]: Spent 401.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 44 [2020-10-19 17:56:03,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 17:56:03,756 INFO L93 Difference]: Finished difference Result 127 states and 150 transitions. [2020-10-19 17:56:03,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-19 17:56:03,759 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 24 [2020-10-19 17:56:03,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 17:56:03,761 INFO L225 Difference]: With dead ends: 127 [2020-10-19 17:56:03,761 INFO L226 Difference]: Without dead ends: 127 [2020-10-19 17:56:03,761 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=119, Invalid=387, Unknown=0, NotChecked=0, Total=506 [2020-10-19 17:56:03,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2020-10-19 17:56:03,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 123. [2020-10-19 17:56:03,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 123 states. [2020-10-19 17:56:03,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 146 transitions. [2020-10-19 17:56:03,772 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 146 transitions. Word has length 24 [2020-10-19 17:56:03,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 17:56:03,772 INFO L481 AbstractCegarLoop]: Abstraction has 123 states and 146 transitions. [2020-10-19 17:56:03,772 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-19 17:56:03,773 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 146 transitions. [2020-10-19 17:56:03,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-10-19 17:56:03,774 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 17:56:03,774 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 17:56:03,978 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 mathsat -unsat_core_generation=3 [2020-10-19 17:56:03,979 INFO L429 AbstractCegarLoop]: === Iteration 11 === [test_funErr4REQUIRES_VIOLATION, test_funErr2REQUIRES_VIOLATION, test_funErr13REQUIRES_VIOLATION, test_funErr3REQUIRES_VIOLATION, test_funErr6REQUIRES_VIOLATION, test_funErr7REQUIRES_VIOLATION, test_funErr5REQUIRES_VIOLATION, test_funErr9REQUIRES_VIOLATION, test_funErr8REQUIRES_VIOLATION, test_funErr1REQUIRES_VIOLATION, test_funErr12REQUIRES_VIOLATION, test_funErr10REQUIRES_VIOLATION, test_funErr0REQUIRES_VIOLATION, test_funErr11REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION]=== [2020-10-19 17:56:03,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 17:56:03,979 INFO L82 PathProgramCache]: Analyzing trace with hash 852771615, now seen corresponding path program 1 times [2020-10-19 17:56:03,980 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-19 17:56:03,980 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [740470368] [2020-10-19 17:56:03,981 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 17:56:04,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 17:56:04,081 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 7 conjunts are in the unsatisfiable core [2020-10-19 17:56:04,083 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 17:56:04,086 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 17:56:04,087 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-19 17:56:04,089 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-19 17:56:04,089 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-10-19 17:56:04,089 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2020-10-19 17:56:04,144 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-10-19 17:56:04,144 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 17:56:04,146 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-19 17:56:04,162 INFO L625 ElimStorePlain]: treesize reduction 10, result has 60.0 percent of original size [2020-10-19 17:56:04,163 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-19 17:56:04,164 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 17:56:04,165 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:17, output treesize:15 [2020-10-19 17:56:04,165 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-19 17:56:04,176 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-19 17:56:04,196 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-19 17:56:04,211 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-19 17:56:04,226 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-19 17:56:04,240 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-19 17:56:04,262 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-19 17:56:04,279 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-19 17:56:04,292 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-19 17:56:04,305 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-19 17:56:04,316 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-19 17:56:04,329 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-19 17:56:04,352 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 17:56:04,352 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-19 17:56:08,435 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 17:56:08,436 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [740470368] [2020-10-19 17:56:08,436 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-19 17:56:08,436 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 4] imperfect sequences [] total 8 [2020-10-19 17:56:08,436 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2111570427] [2020-10-19 17:56:08,437 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-19 17:56:08,437 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-19 17:56:08,438 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-19 17:56:08,438 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=49, Unknown=2, NotChecked=0, Total=72 [2020-10-19 17:56:08,438 INFO L87 Difference]: Start difference. First operand 123 states and 146 transitions. Second operand 9 states. [2020-10-19 17:56:08,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 17:56:08,687 INFO L93 Difference]: Finished difference Result 122 states and 145 transitions. [2020-10-19 17:56:08,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-19 17:56:08,688 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 27 [2020-10-19 17:56:08,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 17:56:08,689 INFO L225 Difference]: With dead ends: 122 [2020-10-19 17:56:08,689 INFO L226 Difference]: Without dead ends: 92 [2020-10-19 17:56:08,689 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 35 SyntacticMatches, 12 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=34, Invalid=74, Unknown=2, NotChecked=0, Total=110 [2020-10-19 17:56:08,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2020-10-19 17:56:08,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 92. [2020-10-19 17:56:08,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 92 states. [2020-10-19 17:56:08,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 108 transitions. [2020-10-19 17:56:08,694 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 108 transitions. Word has length 27 [2020-10-19 17:56:08,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 17:56:08,694 INFO L481 AbstractCegarLoop]: Abstraction has 92 states and 108 transitions. [2020-10-19 17:56:08,695 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-19 17:56:08,695 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 108 transitions. [2020-10-19 17:56:08,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-10-19 17:56:08,698 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 17:56:08,698 INFO L422 BasicCegarLoop]: trace histogram [5, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 17:56:08,904 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 mathsat -unsat_core_generation=3 [2020-10-19 17:56:08,905 INFO L429 AbstractCegarLoop]: === Iteration 12 === [test_funErr4REQUIRES_VIOLATION, test_funErr2REQUIRES_VIOLATION, test_funErr13REQUIRES_VIOLATION, test_funErr3REQUIRES_VIOLATION, test_funErr6REQUIRES_VIOLATION, test_funErr7REQUIRES_VIOLATION, test_funErr5REQUIRES_VIOLATION, test_funErr9REQUIRES_VIOLATION, test_funErr8REQUIRES_VIOLATION, test_funErr1REQUIRES_VIOLATION, test_funErr12REQUIRES_VIOLATION, test_funErr10REQUIRES_VIOLATION, test_funErr0REQUIRES_VIOLATION, test_funErr11REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION]=== [2020-10-19 17:56:08,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 17:56:08,905 INFO L82 PathProgramCache]: Analyzing trace with hash -1374761523, now seen corresponding path program 2 times [2020-10-19 17:56:08,906 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-19 17:56:08,907 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1561199701] [2020-10-19 17:56:08,907 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 17:56:09,000 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-10-19 17:56:09,000 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-19 17:56:09,002 INFO L263 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 14 conjunts are in the unsatisfiable core [2020-10-19 17:56:09,004 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 17:56:09,029 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 17:56:09,029 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-19 17:56:09,048 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-19 17:56:09,048 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-10-19 17:56:09,048 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:23, output treesize:22 [2020-10-19 17:56:09,340 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 17:56:09,341 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-19 17:56:10,399 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 17:56:10,400 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1561199701] [2020-10-19 17:56:10,401 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-19 17:56:10,402 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 17 [2020-10-19 17:56:10,403 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1438686346] [2020-10-19 17:56:10,404 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-10-19 17:56:10,404 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-19 17:56:10,405 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-10-19 17:56:10,405 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=89, Invalid=217, Unknown=0, NotChecked=0, Total=306 [2020-10-19 17:56:10,405 INFO L87 Difference]: Start difference. First operand 92 states and 108 transitions. Second operand 18 states. [2020-10-19 17:56:12,534 WARN L193 SmtUtils]: Spent 542.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2020-10-19 17:56:13,172 WARN L193 SmtUtils]: Spent 531.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2020-10-19 17:56:13,769 WARN L193 SmtUtils]: Spent 387.00 ms on a formula simplification that was a NOOP. DAG size: 55 [2020-10-19 17:56:14,227 WARN L193 SmtUtils]: Spent 292.00 ms on a formula simplification that was a NOOP. DAG size: 50 [2020-10-19 17:56:14,695 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 44 [2020-10-19 17:56:15,005 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 39 [2020-10-19 17:56:15,318 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 33 [2020-10-19 17:56:16,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 17:56:16,082 INFO L93 Difference]: Finished difference Result 124 states and 146 transitions. [2020-10-19 17:56:16,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-10-19 17:56:16,084 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 26 [2020-10-19 17:56:16,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 17:56:16,085 INFO L225 Difference]: With dead ends: 124 [2020-10-19 17:56:16,085 INFO L226 Difference]: Without dead ends: 124 [2020-10-19 17:56:16,086 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 199 ImplicationChecksByTransitivity, 5.3s TimeCoverageRelationStatistics Valid=311, Invalid=619, Unknown=0, NotChecked=0, Total=930 [2020-10-19 17:56:16,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2020-10-19 17:56:16,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 116. [2020-10-19 17:56:16,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 116 states. [2020-10-19 17:56:16,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 138 transitions. [2020-10-19 17:56:16,093 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 138 transitions. Word has length 26 [2020-10-19 17:56:16,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 17:56:16,093 INFO L481 AbstractCegarLoop]: Abstraction has 116 states and 138 transitions. [2020-10-19 17:56:16,093 INFO L482 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-10-19 17:56:16,093 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 138 transitions. [2020-10-19 17:56:16,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-10-19 17:56:16,095 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 17:56:16,096 INFO L422 BasicCegarLoop]: trace histogram [5, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 17:56:16,301 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 mathsat -unsat_core_generation=3 [2020-10-19 17:56:16,304 INFO L429 AbstractCegarLoop]: === Iteration 13 === [test_funErr4REQUIRES_VIOLATION, test_funErr2REQUIRES_VIOLATION, test_funErr13REQUIRES_VIOLATION, test_funErr3REQUIRES_VIOLATION, test_funErr6REQUIRES_VIOLATION, test_funErr7REQUIRES_VIOLATION, test_funErr5REQUIRES_VIOLATION, test_funErr9REQUIRES_VIOLATION, test_funErr8REQUIRES_VIOLATION, test_funErr1REQUIRES_VIOLATION, test_funErr12REQUIRES_VIOLATION, test_funErr10REQUIRES_VIOLATION, test_funErr0REQUIRES_VIOLATION, test_funErr11REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION]=== [2020-10-19 17:56:16,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 17:56:16,305 INFO L82 PathProgramCache]: Analyzing trace with hash 1774792557, now seen corresponding path program 2 times [2020-10-19 17:56:16,306 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-19 17:56:16,307 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [101330906] [2020-10-19 17:56:16,307 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 17:56:16,454 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-10-19 17:56:16,454 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-19 17:56:16,458 INFO L263 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 20 conjunts are in the unsatisfiable core [2020-10-19 17:56:16,460 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 17:56:16,481 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 17:56:16,481 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-19 17:56:16,497 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-19 17:56:16,497 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-10-19 17:56:16,498 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:23, output treesize:22 [2020-10-19 17:56:16,575 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [101330906] [2020-10-19 17:56:16,575 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: no int: (_ BitVec 32) [2020-10-19 17:56:16,576 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1850408790] [2020-10-19 17:56:16,576 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 17:56:16,840 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-10-19 17:56:16,840 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-19 17:56:16,842 INFO L263 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 10 conjunts are in the unsatisfiable core [2020-10-19 17:56:16,844 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 17:56:17,077 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 25 proven. 2 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2020-10-19 17:56:17,079 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-19 17:56:17,298 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 25 proven. 2 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2020-10-19 17:56:17,299 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-19 17:56:17,299 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 15 [2020-10-19 17:56:17,299 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [675239420] [2020-10-19 17:56:17,299 INFO L461 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-19 17:56:17,300 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-19 17:56:17,300 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-19 17:56:17,300 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=251, Unknown=0, NotChecked=0, Total=306 [2020-10-19 17:56:17,300 INFO L87 Difference]: Start difference. First operand 116 states and 138 transitions. Second operand 15 states. [2020-10-19 17:56:17,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 17:56:17,836 INFO L93 Difference]: Finished difference Result 134 states and 158 transitions. [2020-10-19 17:56:17,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-19 17:56:17,837 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 45 [2020-10-19 17:56:17,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 17:56:17,838 INFO L225 Difference]: With dead ends: 134 [2020-10-19 17:56:17,839 INFO L226 Difference]: Without dead ends: 116 [2020-10-19 17:56:17,840 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 86 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 94 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=86, Invalid=376, Unknown=0, NotChecked=0, Total=462 [2020-10-19 17:56:17,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2020-10-19 17:56:17,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 116. [2020-10-19 17:56:17,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 116 states. [2020-10-19 17:56:17,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 137 transitions. [2020-10-19 17:56:17,844 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 137 transitions. Word has length 45 [2020-10-19 17:56:17,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 17:56:17,845 INFO L481 AbstractCegarLoop]: Abstraction has 116 states and 137 transitions. [2020-10-19 17:56:17,845 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-19 17:56:17,845 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 137 transitions. [2020-10-19 17:56:17,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2020-10-19 17:56:17,848 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 17:56:17,851 INFO L422 BasicCegarLoop]: trace histogram [5, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 17:56:18,252 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 17:56:18,253 INFO L429 AbstractCegarLoop]: === Iteration 14 === [test_funErr4REQUIRES_VIOLATION, test_funErr2REQUIRES_VIOLATION, test_funErr13REQUIRES_VIOLATION, test_funErr3REQUIRES_VIOLATION, test_funErr6REQUIRES_VIOLATION, test_funErr7REQUIRES_VIOLATION, test_funErr5REQUIRES_VIOLATION, test_funErr9REQUIRES_VIOLATION, test_funErr8REQUIRES_VIOLATION, test_funErr1REQUIRES_VIOLATION, test_funErr12REQUIRES_VIOLATION, test_funErr10REQUIRES_VIOLATION, test_funErr0REQUIRES_VIOLATION, test_funErr11REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION]=== [2020-10-19 17:56:18,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 17:56:18,253 INFO L82 PathProgramCache]: Analyzing trace with hash 629746890, now seen corresponding path program 3 times [2020-10-19 17:56:18,254 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-19 17:56:18,255 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [285560530] [2020-10-19 17:56:18,255 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 17:56:18,458 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2020-10-19 17:56:18,458 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-19 17:56:18,467 INFO L263 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 23 conjunts are in the unsatisfiable core [2020-10-19 17:56:18,469 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 17:56:18,505 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 17:56:18,505 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-19 17:56:18,522 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-19 17:56:18,522 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-10-19 17:56:18,523 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:23, output treesize:22 [2020-10-19 17:56:18,702 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [285560530] [2020-10-19 17:56:18,702 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: no int: (_ BitVec 32) [2020-10-19 17:56:18,702 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2102570468] [2020-10-19 17:56:18,702 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 20 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2020-10-19 17:56:19,107 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2020-10-19 17:56:19,107 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-19 17:56:19,110 INFO L263 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 24 conjunts are in the unsatisfiable core [2020-10-19 17:56:19,112 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 17:56:19,119 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 17:56:19,120 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-19 17:56:19,137 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-19 17:56:19,137 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-10-19 17:56:19,137 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:23, output treesize:22 [2020-10-19 17:56:19,194 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: no int: (_ BitVec 32) [2020-10-19 17:56:19,194 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [147573110] [2020-10-19 17:56:19,195 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 21 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-19 17:56:19,349 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2020-10-19 17:56:19,350 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-19 17:56:19,355 INFO L263 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 21 conjunts are in the unsatisfiable core [2020-10-19 17:56:19,356 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 17:56:19,363 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 17:56:19,364 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-19 17:56:19,384 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-19 17:56:19,385 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-10-19 17:56:19,385 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:23, output treesize:22 [2020-10-19 17:56:19,439 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: no int: (_ BitVec 32) [2020-10-19 17:56:19,440 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 0 imperfect interpolant sequences. [2020-10-19 17:56:19,440 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [] total 0 [2020-10-19 17:56:19,440 ERROR L205 FreeRefinementEngine]: Strategy WOLF failed to provide any proof altough trace is infeasible [2020-10-19 17:56:19,440 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-19 17:56:20,057 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 mathsat -unsat_core_generation=3,21 z3 -smt2 -in SMTLIB2_COMPLIANT=true,20 cvc4 --incremental --print-success --lang smt --rewrite-divk [2020-10-19 17:56:20,075 WARN L238 ceAbstractionStarter]: Unable to decide correctness. Please check the following counterexample manually. [2020-10-19 17:56:20,076 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.10 05:56:20 BoogieIcfgContainer [2020-10-19 17:56:20,076 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-19 17:56:20,076 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-19 17:56:20,077 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-19 17:56:20,077 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-19 17:56:20,078 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 17:56:20,081 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-10-19 17:56:20,082 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-19 17:56:20,083 INFO L168 Benchmark]: Toolchain (without parser) took 33927.67 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 310.4 MB). Free memory was 949.2 MB in the beginning and 1.1 GB in the end (delta: -117.7 MB). Peak memory consumption was 192.7 MB. Max. memory is 11.5 GB. [2020-10-19 17:56:20,084 INFO L168 Benchmark]: CDTParser took 0.38 ms. Allocated memory is still 1.0 GB. Free memory is still 980.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-10-19 17:56:20,085 INFO L168 Benchmark]: CACSL2BoogieTranslator took 637.97 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.1 MB). Free memory was 943.9 MB in the beginning and 1.1 GB in the end (delta: -173.8 MB). Peak memory consumption was 20.9 MB. Max. memory is 11.5 GB. [2020-10-19 17:56:20,085 INFO L168 Benchmark]: Boogie Preprocessor took 84.46 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: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2020-10-19 17:56:20,086 INFO L168 Benchmark]: RCFGBuilder took 938.68 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: 50.3 MB). Peak memory consumption was 50.3 MB. Max. memory is 11.5 GB. [2020-10-19 17:56:20,086 INFO L168 Benchmark]: TraceAbstraction took 32250.21 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 167.2 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -6.2 MB). Peak memory consumption was 161.1 MB. Max. memory is 11.5 GB. [2020-10-19 17:56:20,087 INFO L168 Benchmark]: Witness Printer took 5.60 ms. Allocated memory is still 1.3 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2020-10-19 17:56:20,089 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.38 ms. Allocated memory is still 1.0 GB. Free memory is still 980.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 637.97 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.1 MB). Free memory was 943.9 MB in the beginning and 1.1 GB in the end (delta: -173.8 MB). Peak memory consumption was 20.9 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 84.46 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: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * RCFGBuilder took 938.68 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: 50.3 MB). Peak memory consumption was 50.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 32250.21 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 167.2 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -6.2 MB). Peak memory consumption was 161.1 MB. Max. memory is 11.5 GB. * Witness Printer took 5.60 ms. Allocated memory is still 1.3 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 518]: 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: [L531] int array_size = __VERIFIER_nondet_int(); [L532] COND FALSE !(array_size < 1 || array_size >= 2147483647 / sizeof(int)) [L535] int* numbers = (int*) __builtin_alloca (array_size * sizeof(int)); [L537] int k = 0; [L537] COND TRUE k < array_size [L539] numbers[k] = __VERIFIER_nondet_int() [L537] k++ [L537] COND TRUE k < array_size [L539] numbers[k] = __VERIFIER_nondet_int() [L537] k++ [L537] COND FALSE !(k < array_size) [L542] CALL test_fun(numbers, array_size) [L514] int i; [L515] int res; [L516] i = 0 [L516] COND TRUE i < N [L517] res = 1 [L518] EXPR a[i] [L518] COND TRUE a[i] == 0 [L519] res = 1 [L523] EXPR a[i] [L523] COND FALSE !(a[i] > 0) [L527] a[i] = res [L516] i++ [L516] COND TRUE i < N [L517] res = 1 [L518] EXPR a[i] [L518] COND TRUE a[i] == 0 [L519] res = 1 [L523] EXPR a[i] [L523] COND FALSE !(a[i] > 0) [L527] a[i] = res [L516] i++ [L516] COND TRUE i < N [L517] res = 1 [L518] EXPR a[i] [L518] COND TRUE a[i] == 0 [L519] res = 1 [L523] EXPR a[i] [L523] COND FALSE !(a[i] > 0) [L527] a[i] = res [L516] i++ [L516] COND TRUE i < N [L517] res = 1 [L518] EXPR a[i] [L518] COND TRUE a[i] == 0 [L519] res = 1 [L523] EXPR a[i] [L523] COND FALSE !(a[i] > 0) [L527] a[i] = res [L516] i++ [L516] COND TRUE i < N [L517] res = 1 [L518] a[i] - StatisticsResult: Ultimate Automizer benchmark data CFG has 10 procedures, 74 locations, 17 error locations. Started 1 CEGAR loops. VerificationResult: UNKNOWN, OverallTime: 32.1s, OverallIterations: 14, TraceHistogramMax: 5, AutomataDifference: 13.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 466 SDtfs, 1076 SDslu, 1477 SDs, 0 SdLazy, 1269 SolverSat, 168 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 5.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 593 GetRequests, 436 SyntacticMatches, 12 SemanticMatches, 145 ConstructedPredicates, 0 IntricatePredicates, 2 DeprecatedPredicates, 453 ImplicationChecksByTransitivity, 17.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=123occurred in iteration=10, 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, 13 MinimizatonAttempts, 109 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 10.2s InterpolantComputationTime, 257 NumberOfCodeBlocks, 257 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 488 ConstructedInterpolants, 19 QuantifiedInterpolants, 95108 SizeOfPredicates, 48 NumberOfNonLiveVariables, 842 ConjunctsInSsa, 102 ConjunctsInUnsatCore, 26 InterpolantComputations, 14 PerfectInterpolantSequences, 114/194 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...