./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/array-memsafety/knapsack_alloca_unsafe.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 20ed64ec Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.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/knapsack_alloca_unsafe.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 134c0db99ce5251339642354d8ec6411765b7878 ................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.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/knapsack_alloca_unsafe.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 134c0db99ce5251339642354d8ec6411765b7878 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(valid-deref) --- Real Ultimate output --- This is Ultimate 0.2.1-dev-20ed64e [2021-08-27 04:47:08,614 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-27 04:47:08,617 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-27 04:47:08,644 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-27 04:47:08,647 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-27 04:47:08,648 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-27 04:47:08,650 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-27 04:47:08,653 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-27 04:47:08,655 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-27 04:47:08,656 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-27 04:47:08,657 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-27 04:47:08,658 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-27 04:47:08,659 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-27 04:47:08,665 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-27 04:47:08,666 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-27 04:47:08,666 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-27 04:47:08,667 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-27 04:47:08,668 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-27 04:47:08,669 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-27 04:47:08,670 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-27 04:47:08,671 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-27 04:47:08,671 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-27 04:47:08,672 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-27 04:47:08,675 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-27 04:47:08,676 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-27 04:47:08,677 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-27 04:47:08,677 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-27 04:47:08,677 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-27 04:47:08,678 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-27 04:47:08,678 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-27 04:47:08,679 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-27 04:47:08,679 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-27 04:47:08,680 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-27 04:47:08,680 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-27 04:47:08,681 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-27 04:47:08,681 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-27 04:47:08,682 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-27 04:47:08,682 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-27 04:47:08,682 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-27 04:47:08,683 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-27 04:47:08,683 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-27 04:47:08,689 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2021-08-27 04:47:08,708 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-27 04:47:08,708 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-27 04:47:08,709 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-27 04:47:08,709 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-27 04:47:08,710 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-27 04:47:08,712 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-27 04:47:08,712 INFO L138 SettingsManager]: * Use SBE=true [2021-08-27 04:47:08,712 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-27 04:47:08,713 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-27 04:47:08,713 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-08-27 04:47:08,713 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-27 04:47:08,713 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-27 04:47:08,714 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-27 04:47:08,714 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-08-27 04:47:08,714 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-08-27 04:47:08,714 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-08-27 04:47:08,714 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-27 04:47:08,715 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-08-27 04:47:08,721 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-27 04:47:08,721 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-27 04:47:08,721 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-27 04:47:08,721 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-27 04:47:08,721 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-27 04:47:08,721 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-27 04:47:08,721 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-27 04:47:08,722 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-27 04:47:08,722 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-27 04:47:08,722 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-27 04:47:08,722 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-27 04:47:08,722 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 134c0db99ce5251339642354d8ec6411765b7878 [2021-08-27 04:47:08,930 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-27 04:47:08,951 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-27 04:47:08,953 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-27 04:47:08,954 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-27 04:47:08,954 INFO L275 PluginConnector]: CDTParser initialized [2021-08-27 04:47:08,957 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-memsafety/knapsack_alloca_unsafe.i [2021-08-27 04:47:09,008 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6cb0e0418/8de70007f61048dd9553298caee2ea99/FLAG2356cba2b [2021-08-27 04:47:09,387 INFO L306 CDTParser]: Found 1 translation units. [2021-08-27 04:47:09,389 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-memsafety/knapsack_alloca_unsafe.i [2021-08-27 04:47:09,400 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6cb0e0418/8de70007f61048dd9553298caee2ea99/FLAG2356cba2b [2021-08-27 04:47:09,750 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6cb0e0418/8de70007f61048dd9553298caee2ea99 [2021-08-27 04:47:09,756 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-27 04:47:09,758 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-08-27 04:47:09,759 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-27 04:47:09,759 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-27 04:47:09,762 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-27 04:47:09,762 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 04:47:09" (1/1) ... [2021-08-27 04:47:09,764 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@554c067e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:47:09, skipping insertion in model container [2021-08-27 04:47:09,764 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 04:47:09" (1/1) ... [2021-08-27 04:47:09,768 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-27 04:47:09,798 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-27 04:47:10,011 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 04:47:10,017 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) [2021-08-27 04:47:10,019 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@4db8d16f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:47:10, skipping insertion in model container [2021-08-27 04:47:10,019 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-27 04:47:10,019 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.preprocessor [2021-08-27 04:47:10,021 INFO L168 Benchmark]: Toolchain (without parser) took 262.62 ms. Allocated memory was 50.3 MB in the beginning and 60.8 MB in the end (delta: 10.5 MB). Free memory was 26.7 MB in the beginning and 43.0 MB in the end (delta: -16.3 MB). Peak memory consumption was 5.3 MB. Max. memory is 16.1 GB. [2021-08-27 04:47:10,022 INFO L168 Benchmark]: CDTParser took 0.34 ms. Allocated memory is still 50.3 MB. Free memory was 32.6 MB in the beginning and 32.6 MB in the end (delta: 38.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-27 04:47:10,022 INFO L168 Benchmark]: CACSL2BoogieTranslator took 260.57 ms. Allocated memory was 50.3 MB in the beginning and 60.8 MB in the end (delta: 10.5 MB). Free memory was 26.5 MB in the beginning and 43.0 MB in the end (delta: -16.5 MB). Peak memory consumption was 5.3 MB. Max. memory is 16.1 GB. [2021-08-27 04:47:10,023 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34 ms. Allocated memory is still 50.3 MB. Free memory was 32.6 MB in the beginning and 32.6 MB in the end (delta: 38.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 260.57 ms. Allocated memory was 50.3 MB in the beginning and 60.8 MB in the end (delta: 10.5 MB). Free memory was 26.5 MB in the beginning and 43.0 MB in the end (delta: -16.5 MB). Peak memory consumption was 5.3 MB. Max. memory is 16.1 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 0.2.1-dev-20ed64e [2021-08-27 04:47:11,337 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-27 04:47:11,339 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-27 04:47:11,370 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-27 04:47:11,370 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-27 04:47:11,373 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-27 04:47:11,374 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-27 04:47:11,377 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-27 04:47:11,379 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-27 04:47:11,382 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-27 04:47:11,383 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-27 04:47:11,386 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-27 04:47:11,386 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-27 04:47:11,388 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-27 04:47:11,390 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-27 04:47:11,392 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-27 04:47:11,393 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-27 04:47:11,394 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-27 04:47:11,395 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-27 04:47:11,400 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-27 04:47:11,400 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-27 04:47:11,401 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-27 04:47:11,403 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-27 04:47:11,403 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-27 04:47:11,408 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-27 04:47:11,408 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-27 04:47:11,408 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-27 04:47:11,409 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-27 04:47:11,410 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-27 04:47:11,410 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-27 04:47:11,411 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-27 04:47:11,411 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-27 04:47:11,412 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-27 04:47:11,413 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-27 04:47:11,414 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-27 04:47:11,414 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-27 04:47:11,414 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-27 04:47:11,415 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-27 04:47:11,415 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-27 04:47:11,416 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-27 04:47:11,416 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-27 04:47:11,419 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2021-08-27 04:47:11,453 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-27 04:47:11,453 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-27 04:47:11,454 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-27 04:47:11,454 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-27 04:47:11,456 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-27 04:47:11,456 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-27 04:47:11,456 INFO L138 SettingsManager]: * Use SBE=true [2021-08-27 04:47:11,456 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-27 04:47:11,456 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-27 04:47:11,457 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-08-27 04:47:11,457 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-27 04:47:11,457 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-27 04:47:11,458 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-27 04:47:11,458 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-08-27 04:47:11,458 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-08-27 04:47:11,458 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-08-27 04:47:11,458 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-27 04:47:11,458 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-08-27 04:47:11,458 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-08-27 04:47:11,459 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-08-27 04:47:11,459 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-27 04:47:11,459 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-27 04:47:11,459 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-27 04:47:11,459 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-27 04:47:11,459 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-27 04:47:11,459 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-27 04:47:11,460 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-27 04:47:11,460 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-27 04:47:11,460 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-08-27 04:47:11,460 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-08-27 04:47:11,460 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-27 04:47:11,460 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-08-27 04:47:11,461 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 134c0db99ce5251339642354d8ec6411765b7878 [2021-08-27 04:47:11,712 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-27 04:47:11,736 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-27 04:47:11,738 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-27 04:47:11,739 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-27 04:47:11,739 INFO L275 PluginConnector]: CDTParser initialized [2021-08-27 04:47:11,740 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-memsafety/knapsack_alloca_unsafe.i [2021-08-27 04:47:11,805 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/950dc76cd/23eb735ea43747fa85f521a0a694b491/FLAGf79a511e6 [2021-08-27 04:47:12,157 INFO L306 CDTParser]: Found 1 translation units. [2021-08-27 04:47:12,157 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-memsafety/knapsack_alloca_unsafe.i [2021-08-27 04:47:12,175 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/950dc76cd/23eb735ea43747fa85f521a0a694b491/FLAGf79a511e6 [2021-08-27 04:47:12,543 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/950dc76cd/23eb735ea43747fa85f521a0a694b491 [2021-08-27 04:47:12,545 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-27 04:47:12,547 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-08-27 04:47:12,549 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-27 04:47:12,550 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-27 04:47:12,552 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-27 04:47:12,553 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 04:47:12" (1/1) ... [2021-08-27 04:47:12,554 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3ccb0587 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:47:12, skipping insertion in model container [2021-08-27 04:47:12,554 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 04:47:12" (1/1) ... [2021-08-27 04:47:12,558 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-27 04:47:12,593 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-27 04:47:12,772 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 04:47:12,792 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-08-27 04:47:12,805 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-27 04:47:12,852 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 04:47:12,863 INFO L203 MainTranslator]: Completed pre-run [2021-08-27 04:47:12,904 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 04:47:12,923 INFO L208 MainTranslator]: Completed translation [2021-08-27 04:47:12,924 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:47:12 WrapperNode [2021-08-27 04:47:12,924 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-27 04:47:12,925 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-27 04:47:12,925 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-27 04:47:12,925 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-27 04:47:12,932 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:47:12" (1/1) ... [2021-08-27 04:47:12,932 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:47:12" (1/1) ... [2021-08-27 04:47:12,942 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:47:12" (1/1) ... [2021-08-27 04:47:12,942 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:47:12" (1/1) ... [2021-08-27 04:47:12,953 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:47:12" (1/1) ... [2021-08-27 04:47:12,963 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:47:12" (1/1) ... [2021-08-27 04:47:12,965 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:47:12" (1/1) ... [2021-08-27 04:47:12,969 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-27 04:47:12,970 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-27 04:47:12,970 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-27 04:47:12,970 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-27 04:47:12,970 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:47:12" (1/1) ... [2021-08-27 04:47:12,975 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-27 04:47:12,982 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 04:47:12,998 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-08-27 04:47:13,033 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-08-27 04:47:13,045 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-08-27 04:47:13,046 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-27 04:47:13,046 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.setCurrentRoundingMode [2021-08-27 04:47:13,046 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2021-08-27 04:47:13,046 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2021-08-27 04:47:13,047 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2021-08-27 04:47:13,048 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2021-08-27 04:47:13,048 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2021-08-27 04:47:13,048 INFO L138 BoogieDeclarations]: Found implementation of procedure knapsack [2021-08-27 04:47:13,048 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-08-27 04:47:13,048 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2021-08-27 04:47:13,048 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2021-08-27 04:47:13,048 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2021-08-27 04:47:13,048 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2021-08-27 04:47:13,049 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2021-08-27 04:47:13,049 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2021-08-27 04:47:13,049 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2021-08-27 04:47:13,049 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2021-08-27 04:47:13,049 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2021-08-27 04:47:13,049 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2021-08-27 04:47:13,049 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2021-08-27 04:47:13,049 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2021-08-27 04:47:13,050 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2021-08-27 04:47:13,050 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2021-08-27 04:47:13,050 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2021-08-27 04:47:13,050 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2021-08-27 04:47:13,050 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2021-08-27 04:47:13,050 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2021-08-27 04:47:13,050 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2021-08-27 04:47:13,050 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2021-08-27 04:47:13,051 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2021-08-27 04:47:13,051 INFO L130 BoogieDeclarations]: Found specification of procedure select [2021-08-27 04:47:13,051 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2021-08-27 04:47:13,051 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2021-08-27 04:47:13,051 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2021-08-27 04:47:13,051 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2021-08-27 04:47:13,051 INFO L130 BoogieDeclarations]: Found specification of procedure random [2021-08-27 04:47:13,051 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2021-08-27 04:47:13,052 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2021-08-27 04:47:13,052 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2021-08-27 04:47:13,052 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2021-08-27 04:47:13,052 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2021-08-27 04:47:13,052 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2021-08-27 04:47:13,053 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2021-08-27 04:47:13,053 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2021-08-27 04:47:13,053 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2021-08-27 04:47:13,053 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2021-08-27 04:47:13,053 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2021-08-27 04:47:13,054 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2021-08-27 04:47:13,054 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2021-08-27 04:47:13,054 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2021-08-27 04:47:13,054 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2021-08-27 04:47:13,054 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2021-08-27 04:47:13,054 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2021-08-27 04:47:13,055 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2021-08-27 04:47:13,055 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2021-08-27 04:47:13,055 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2021-08-27 04:47:13,055 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2021-08-27 04:47:13,055 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2021-08-27 04:47:13,055 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2021-08-27 04:47:13,056 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2021-08-27 04:47:13,056 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2021-08-27 04:47:13,057 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2021-08-27 04:47:13,057 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2021-08-27 04:47:13,057 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2021-08-27 04:47:13,057 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2021-08-27 04:47:13,057 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2021-08-27 04:47:13,058 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2021-08-27 04:47:13,058 INFO L130 BoogieDeclarations]: Found specification of procedure free [2021-08-27 04:47:13,058 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2021-08-27 04:47:13,058 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2021-08-27 04:47:13,058 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2021-08-27 04:47:13,058 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2021-08-27 04:47:13,058 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-08-27 04:47:13,058 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2021-08-27 04:47:13,059 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2021-08-27 04:47:13,059 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2021-08-27 04:47:13,059 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2021-08-27 04:47:13,059 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2021-08-27 04:47:13,059 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2021-08-27 04:47:13,060 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2021-08-27 04:47:13,060 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2021-08-27 04:47:13,060 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2021-08-27 04:47:13,060 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2021-08-27 04:47:13,060 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2021-08-27 04:47:13,060 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2021-08-27 04:47:13,060 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2021-08-27 04:47:13,060 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2021-08-27 04:47:13,061 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2021-08-27 04:47:13,061 INFO L130 BoogieDeclarations]: Found specification of procedure system [2021-08-27 04:47:13,061 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2021-08-27 04:47:13,061 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2021-08-27 04:47:13,061 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2021-08-27 04:47:13,061 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2021-08-27 04:47:13,061 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2021-08-27 04:47:13,062 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2021-08-27 04:47:13,062 INFO L130 BoogieDeclarations]: Found specification of procedure div [2021-08-27 04:47:13,062 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2021-08-27 04:47:13,062 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2021-08-27 04:47:13,062 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2021-08-27 04:47:13,062 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2021-08-27 04:47:13,063 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2021-08-27 04:47:13,063 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2021-08-27 04:47:13,063 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2021-08-27 04:47:13,063 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2021-08-27 04:47:13,063 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2021-08-27 04:47:13,063 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2021-08-27 04:47:13,063 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2021-08-27 04:47:13,064 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2021-08-27 04:47:13,064 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2021-08-27 04:47:13,064 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2021-08-27 04:47:13,064 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2021-08-27 04:47:13,064 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2021-08-27 04:47:13,064 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2021-08-27 04:47:13,064 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2021-08-27 04:47:13,065 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2021-08-27 04:47:13,065 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2021-08-27 04:47:13,065 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-08-27 04:47:13,065 INFO L130 BoogieDeclarations]: Found specification of procedure knapsack [2021-08-27 04:47:13,065 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-08-27 04:47:13,065 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-08-27 04:47:13,066 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-08-27 04:47:13,066 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-27 04:47:13,066 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-08-27 04:47:13,068 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-08-27 04:47:13,068 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-27 04:47:13,069 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.setCurrentRoundingMode [2021-08-27 04:47:13,781 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-27 04:47:13,782 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-08-27 04:47:13,783 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 04:47:13 BoogieIcfgContainer [2021-08-27 04:47:13,783 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-27 04:47:13,784 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-27 04:47:13,784 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-27 04:47:13,786 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-27 04:47:13,786 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.08 04:47:12" (1/3) ... [2021-08-27 04:47:13,787 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5075ae9f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.08 04:47:13, skipping insertion in model container [2021-08-27 04:47:13,787 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:47:12" (2/3) ... [2021-08-27 04:47:13,787 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5075ae9f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.08 04:47:13, skipping insertion in model container [2021-08-27 04:47:13,787 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 04:47:13" (3/3) ... [2021-08-27 04:47:13,788 INFO L111 eAbstractionObserver]: Analyzing ICFG knapsack_alloca_unsafe.i [2021-08-27 04:47:13,791 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-27 04:47:13,791 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 27 error locations. [2021-08-27 04:47:13,815 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-08-27 04:47:13,819 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-08-27 04:47:13,819 INFO L340 AbstractCegarLoop]: Starting to check reachability of 27 error locations. [2021-08-27 04:47:13,829 INFO L276 IsEmpty]: Start isEmpty. Operand has 73 states, 39 states have (on average 2.0) internal successors, (78), 66 states have internal predecessors, (78), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-08-27 04:47:13,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-08-27 04:47:13,841 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 04:47:13,841 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 04:47:13,841 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr0REQUIRES_VIOLATION === [mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION (and 22 more)] === [2021-08-27 04:47:13,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 04:47:13,844 INFO L82 PathProgramCache]: Analyzing trace with hash -1775609137, now seen corresponding path program 1 times [2021-08-27 04:47:13,851 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 04:47:13,851 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1394297223] [2021-08-27 04:47:13,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 04:47:13,852 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 04:47:13,852 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 04:47:13,854 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-27 04:47:13,861 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-08-27 04:47:14,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 04:47:14,039 INFO L263 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 5 conjunts are in the unsatisfiable core [2021-08-27 04:47:14,043 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 04:47:14,200 INFO L354 Elim1Store]: treesize reduction 92, result has 21.4 percent of original size [2021-08-27 04:47:14,200 INFO L388 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 6 case distinctions, treesize of input 40 treesize of output 50 [2021-08-27 04:47:14,405 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 04:47:14,405 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 04:47:14,482 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 04:47:14,483 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 04:47:14,483 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1394297223] [2021-08-27 04:47:14,483 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1394297223] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 04:47:14,483 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 04:47:14,483 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2021-08-27 04:47:14,485 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [971073711] [2021-08-27 04:47:14,488 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-27 04:47:14,488 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 04:47:14,498 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-27 04:47:14,498 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-08-27 04:47:14,500 INFO L87 Difference]: Start difference. First operand has 73 states, 39 states have (on average 2.0) internal successors, (78), 66 states have internal predecessors, (78), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-08-27 04:47:14,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 04:47:14,648 INFO L93 Difference]: Finished difference Result 72 states and 79 transitions. [2021-08-27 04:47:14,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-27 04:47:14,649 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 11 [2021-08-27 04:47:14,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 04:47:14,654 INFO L225 Difference]: With dead ends: 72 [2021-08-27 04:47:14,654 INFO L226 Difference]: Without dead ends: 69 [2021-08-27 04:47:14,655 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 23.3ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-08-27 04:47:14,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2021-08-27 04:47:14,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 69. [2021-08-27 04:47:14,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 38 states have (on average 1.868421052631579) internal successors, (71), 63 states have internal predecessors, (71), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-08-27 04:47:14,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 76 transitions. [2021-08-27 04:47:14,675 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 76 transitions. Word has length 11 [2021-08-27 04:47:14,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 04:47:14,675 INFO L470 AbstractCegarLoop]: Abstraction has 69 states and 76 transitions. [2021-08-27 04:47:14,676 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-08-27 04:47:14,676 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 76 transitions. [2021-08-27 04:47:14,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-08-27 04:47:14,676 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 04:47:14,676 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 04:47:14,685 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-08-27 04:47:14,885 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-27 04:47:14,886 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting mainErr1REQUIRES_VIOLATION === [mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION (and 22 more)] === [2021-08-27 04:47:14,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 04:47:14,886 INFO L82 PathProgramCache]: Analyzing trace with hash -1775609136, now seen corresponding path program 1 times [2021-08-27 04:47:14,886 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 04:47:14,886 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2083177749] [2021-08-27 04:47:14,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 04:47:14,887 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 04:47:14,887 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 04:47:14,887 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-27 04:47:14,889 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-08-27 04:47:15,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 04:47:15,015 INFO L263 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 10 conjunts are in the unsatisfiable core [2021-08-27 04:47:15,016 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 04:47:15,146 INFO L354 Elim1Store]: treesize reduction 93, result has 14.7 percent of original size [2021-08-27 04:47:15,147 INFO L388 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 3 case distinctions, treesize of input 38 treesize of output 43 [2021-08-27 04:47:15,155 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-08-27 04:47:15,156 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 46 treesize of output 42 [2021-08-27 04:47:15,298 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 04:47:15,298 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 04:47:15,411 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-08-27 04:47:15,411 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 74 treesize of output 70 [2021-08-27 04:47:15,497 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 04:47:15,498 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 04:47:15,498 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2083177749] [2021-08-27 04:47:15,498 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2083177749] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 04:47:15,498 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 04:47:15,498 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 7 [2021-08-27 04:47:15,498 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [383813494] [2021-08-27 04:47:15,499 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-08-27 04:47:15,499 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 04:47:15,500 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-27 04:47:15,500 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2021-08-27 04:47:15,500 INFO L87 Difference]: Start difference. First operand 69 states and 76 transitions. Second operand has 8 states, 7 states have (on average 1.8571428571428572) internal successors, (13), 8 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-08-27 04:47:16,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 04:47:16,198 INFO L93 Difference]: Finished difference Result 133 states and 147 transitions. [2021-08-27 04:47:16,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-27 04:47:16,199 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 1.8571428571428572) internal successors, (13), 8 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 11 [2021-08-27 04:47:16,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 04:47:16,201 INFO L225 Difference]: With dead ends: 133 [2021-08-27 04:47:16,201 INFO L226 Difference]: Without dead ends: 133 [2021-08-27 04:47:16,201 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 224.7ms TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2021-08-27 04:47:16,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2021-08-27 04:47:16,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 75. [2021-08-27 04:47:16,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 44 states have (on average 1.7954545454545454) internal successors, (79), 69 states have internal predecessors, (79), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-08-27 04:47:16,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 84 transitions. [2021-08-27 04:47:16,209 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 84 transitions. Word has length 11 [2021-08-27 04:47:16,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 04:47:16,209 INFO L470 AbstractCegarLoop]: Abstraction has 75 states and 84 transitions. [2021-08-27 04:47:16,209 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 1.8571428571428572) internal successors, (13), 8 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-08-27 04:47:16,209 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 84 transitions. [2021-08-27 04:47:16,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-08-27 04:47:16,209 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 04:47:16,209 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 04:47:16,217 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Ended with exit code 0 [2021-08-27 04:47:16,415 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-27 04:47:16,418 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting mainErr1REQUIRES_VIOLATION === [mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION (and 22 more)] === [2021-08-27 04:47:16,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 04:47:16,419 INFO L82 PathProgramCache]: Analyzing trace with hash -1773762094, now seen corresponding path program 1 times [2021-08-27 04:47:16,419 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 04:47:16,419 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1786408782] [2021-08-27 04:47:16,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 04:47:16,420 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 04:47:16,420 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 04:47:16,420 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-27 04:47:16,426 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-08-27 04:47:16,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 04:47:16,533 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 04:47:16,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 04:47:16,567 INFO L133 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2021-08-27 04:47:16,567 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-08-27 04:47:16,568 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location mainErr1REQUIRES_VIOLATION [2021-08-27 04:47:16,569 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr0REQUIRES_VIOLATION [2021-08-27 04:47:16,569 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr2REQUIRES_VIOLATION [2021-08-27 04:47:16,570 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr3REQUIRES_VIOLATION [2021-08-27 04:47:16,570 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr4REQUIRES_VIOLATION [2021-08-27 04:47:16,570 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr5REQUIRES_VIOLATION [2021-08-27 04:47:16,570 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr6ENSURES_VIOLATIONMEMORY_LEAK [2021-08-27 04:47:16,570 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location knapsackErr0REQUIRES_VIOLATION [2021-08-27 04:47:16,570 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location knapsackErr1REQUIRES_VIOLATION [2021-08-27 04:47:16,571 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location knapsackErr2REQUIRES_VIOLATION [2021-08-27 04:47:16,571 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location knapsackErr3REQUIRES_VIOLATION [2021-08-27 04:47:16,571 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location knapsackErr4REQUIRES_VIOLATION [2021-08-27 04:47:16,571 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location knapsackErr5REQUIRES_VIOLATION [2021-08-27 04:47:16,571 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location knapsackErr6REQUIRES_VIOLATION [2021-08-27 04:47:16,571 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location knapsackErr7REQUIRES_VIOLATION [2021-08-27 04:47:16,571 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location knapsackErr8REQUIRES_VIOLATION [2021-08-27 04:47:16,571 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location knapsackErr9REQUIRES_VIOLATION [2021-08-27 04:47:16,572 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location knapsackErr10REQUIRES_VIOLATION [2021-08-27 04:47:16,572 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location knapsackErr11REQUIRES_VIOLATION [2021-08-27 04:47:16,572 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location knapsackErr12REQUIRES_VIOLATION [2021-08-27 04:47:16,572 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location knapsackErr13REQUIRES_VIOLATION [2021-08-27 04:47:16,572 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location knapsackErr14REQUIRES_VIOLATION [2021-08-27 04:47:16,572 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location knapsackErr15REQUIRES_VIOLATION [2021-08-27 04:47:16,572 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location knapsackErr16REQUIRES_VIOLATION [2021-08-27 04:47:16,573 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location knapsackErr17REQUIRES_VIOLATION [2021-08-27 04:47:16,573 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location knapsackErr18REQUIRES_VIOLATION [2021-08-27 04:47:16,573 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location knapsackErr19REQUIRES_VIOLATION [2021-08-27 04:47:16,600 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-08-27 04:47:16,779 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-27 04:47:16,784 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-27 04:47:16,794 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.08 04:47:16 BoogieIcfgContainer [2021-08-27 04:47:16,794 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-27 04:47:16,795 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-27 04:47:16,795 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-27 04:47:16,795 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-27 04:47:16,795 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 04:47:13" (3/4) ... [2021-08-27 04:47:16,796 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-08-27 04:47:16,822 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-08-27 04:47:16,825 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-27 04:47:16,826 INFO L168 Benchmark]: Toolchain (without parser) took 4278.03 ms. Allocated memory was 69.2 MB in the beginning and 104.9 MB in the end (delta: 35.7 MB). Free memory was 48.0 MB in the beginning and 45.5 MB in the end (delta: 2.5 MB). Peak memory consumption was 37.4 MB. Max. memory is 16.1 GB. [2021-08-27 04:47:16,827 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 69.2 MB. Free memory is still 49.6 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-08-27 04:47:16,828 INFO L168 Benchmark]: CACSL2BoogieTranslator took 374.97 ms. Allocated memory is still 69.2 MB. Free memory was 47.8 MB in the beginning and 41.8 MB in the end (delta: 6.0 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-08-27 04:47:16,828 INFO L168 Benchmark]: Boogie Preprocessor took 44.23 ms. Allocated memory is still 69.2 MB. Free memory was 41.8 MB in the beginning and 39.0 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-08-27 04:47:16,830 INFO L168 Benchmark]: RCFGBuilder took 813.53 ms. Allocated memory was 69.2 MB in the beginning and 86.0 MB in the end (delta: 16.8 MB). Free memory was 39.0 MB in the beginning and 63.4 MB in the end (delta: -24.5 MB). Peak memory consumption was 21.6 MB. Max. memory is 16.1 GB. [2021-08-27 04:47:16,831 INFO L168 Benchmark]: TraceAbstraction took 3010.42 ms. Allocated memory was 86.0 MB in the beginning and 104.9 MB in the end (delta: 18.9 MB). Free memory was 62.9 MB in the beginning and 47.6 MB in the end (delta: 15.3 MB). Peak memory consumption was 32.6 MB. Max. memory is 16.1 GB. [2021-08-27 04:47:16,831 INFO L168 Benchmark]: Witness Printer took 30.02 ms. Allocated memory is still 104.9 MB. Free memory was 47.6 MB in the beginning and 45.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-08-27 04:47:16,832 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 69.2 MB. Free memory is still 49.6 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 374.97 ms. Allocated memory is still 69.2 MB. Free memory was 47.8 MB in the beginning and 41.8 MB in the end (delta: 6.0 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 44.23 ms. Allocated memory is still 69.2 MB. Free memory was 41.8 MB in the beginning and 39.0 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 813.53 ms. Allocated memory was 69.2 MB in the beginning and 86.0 MB in the end (delta: 16.8 MB). Free memory was 39.0 MB in the beginning and 63.4 MB in the end (delta: -24.5 MB). Peak memory consumption was 21.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 3010.42 ms. Allocated memory was 86.0 MB in the beginning and 104.9 MB in the end (delta: 18.9 MB). Free memory was 62.9 MB in the beginning and 47.6 MB in the end (delta: 15.3 MB). Peak memory consumption was 32.6 MB. Max. memory is 16.1 GB. * Witness Printer took 30.02 ms. Allocated memory is still 104.9 MB. Free memory was 47.6 MB in the beginning and 45.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 542]: pointer dereference may fail pointer dereference may fail We found a FailurePath: [L527] int N = __VERIFIER_nondet_int(); [L528] int M = __VERIFIER_nondet_int(); [L529] COND FALSE !(N < 1) VAL [M=0, N=1073741824] [L532] COND TRUE M < 1 [L533] M = 1 VAL [M=1, N=1073741824] [L535] int *size = (int*) __builtin_alloca (N * sizeof(int)); [L536] int *val = (int*) __builtin_alloca (N * sizeof(int)); [L537] int *cost = (int*) __builtin_alloca (M * sizeof(int)); [L538] int *best = (int*) __builtin_alloca (M * sizeof(int)); [L540] int i = 0; VAL [__builtin_alloca (M * sizeof(int))={5:0}, __builtin_alloca (M * sizeof(int))={-2147483648:0}, __builtin_alloca (N * sizeof(int))={3:0}, __builtin_alloca (N * sizeof(int))={7:0}, best={5:0}, cost={-2147483648:0}, i=0, M=1, N=1073741824, size={3:0}, val={7:0}] [L540] COND TRUE i < N VAL [__builtin_alloca (M * sizeof(int))={5:0}, __builtin_alloca (M * sizeof(int))={-2147483648:0}, __builtin_alloca (N * sizeof(int))={3:0}, __builtin_alloca (N * sizeof(int))={7:0}, best={5:0}, cost={-2147483648:0}, i=0, M=1, N=1073741824, size={3:0}, val={7:0}] [L542] size[i] = __VERIFIER_nondet_int() - UnprovableResult [Line: 542]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 543]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 543]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 548]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 548]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 526]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 517]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 517]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 518]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 518]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 518]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 518]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 518]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 518]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 518]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 518]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 519]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 519]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 519]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 519]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 519]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 519]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 519]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 519]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 520]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 520]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 10 procedures, 94 locations, 27 error locations. Started 1 CEGAR loops. OverallTime: 2968.8ms, OverallIterations: 3, TraceHistogramMax: 1, EmptinessCheckTime: 15.1ms, AutomataDifference: 867.9ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 7.0ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 154 SDtfs, 179 SDslu, 299 SDs, 0 SdLazy, 125 SolverSat, 14 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 620.3ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 45 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 248.1ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=75occurred in iteration=2, InterpolantAutomatonStates: 11, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 19.9ms AutomataMinimizationTime, 2 MinimizatonAttempts, 58 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 18.4ms SsaConstructionTime, 65.2ms SatisfiabilityAnalysisTime, 928.8ms InterpolantComputationTime, 33 NumberOfCodeBlocks, 33 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 40 ConstructedInterpolants, 4 QuantifiedInterpolants, 266 SizeOfPredicates, 14 NumberOfNonLiveVariables, 120 ConjunctsInSsa, 15 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2021-08-27 04:47:16,877 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...