./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/array-memsafety/lis_unsafe.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version ff03de63 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/lis_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 302a384d858b88c7c93de8a2b1030a1c448a13b5bf510dfc42e11e1c01d4bd66 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-ff03de6 [2021-12-21 17:59:59,332 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-21 17:59:59,333 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-21 17:59:59,381 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-21 17:59:59,382 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-21 17:59:59,383 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-21 17:59:59,386 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-21 17:59:59,390 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-21 17:59:59,391 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-21 17:59:59,391 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-21 17:59:59,392 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-21 17:59:59,393 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-21 17:59:59,393 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-21 17:59:59,394 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-21 17:59:59,394 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-21 17:59:59,395 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-21 17:59:59,395 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-21 17:59:59,396 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-21 17:59:59,397 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-21 17:59:59,398 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-21 17:59:59,399 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-21 17:59:59,400 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-21 17:59:59,400 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-21 17:59:59,401 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-21 17:59:59,402 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-21 17:59:59,403 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-21 17:59:59,403 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-21 17:59:59,403 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-21 17:59:59,404 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-21 17:59:59,404 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-21 17:59:59,404 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-21 17:59:59,405 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-21 17:59:59,405 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-21 17:59:59,406 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-21 17:59:59,407 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-21 17:59:59,407 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-21 17:59:59,407 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-21 17:59:59,408 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-21 17:59:59,408 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-21 17:59:59,408 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-21 17:59:59,409 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-21 17:59:59,410 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2021-12-21 17:59:59,424 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-21 17:59:59,425 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-21 17:59:59,425 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-21 17:59:59,425 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-21 17:59:59,425 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-21 17:59:59,426 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-21 17:59:59,426 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-21 17:59:59,426 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-21 17:59:59,426 INFO L138 SettingsManager]: * Use SBE=true [2021-12-21 17:59:59,426 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-21 17:59:59,427 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-21 17:59:59,427 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-21 17:59:59,428 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-21 17:59:59,428 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-21 17:59:59,428 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-21 17:59:59,428 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-12-21 17:59:59,428 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-12-21 17:59:59,428 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-12-21 17:59:59,428 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-21 17:59:59,429 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-12-21 17:59:59,429 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-21 17:59:59,429 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-21 17:59:59,429 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-21 17:59:59,429 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-21 17:59:59,429 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-21 17:59:59,429 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-21 17:59:59,430 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-21 17:59:59,430 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-21 17:59:59,431 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-21 17:59:59,431 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-21 17:59:59,431 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-21 17:59:59,431 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 302a384d858b88c7c93de8a2b1030a1c448a13b5bf510dfc42e11e1c01d4bd66 [2021-12-21 17:59:59,646 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-21 17:59:59,667 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-21 17:59:59,670 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-21 17:59:59,670 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-21 17:59:59,671 INFO L275 PluginConnector]: CDTParser initialized [2021-12-21 17:59:59,672 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-memsafety/lis_unsafe.i [2021-12-21 17:59:59,712 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dd99429c7/3ea6349e11a349689cc2934b6599d3ed/FLAG75f3f4e8c [2021-12-21 18:00:00,099 INFO L306 CDTParser]: Found 1 translation units. [2021-12-21 18:00:00,100 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-memsafety/lis_unsafe.i [2021-12-21 18:00:00,111 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dd99429c7/3ea6349e11a349689cc2934b6599d3ed/FLAG75f3f4e8c [2021-12-21 18:00:00,458 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dd99429c7/3ea6349e11a349689cc2934b6599d3ed [2021-12-21 18:00:00,460 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-21 18:00:00,461 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-21 18:00:00,462 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-21 18:00:00,462 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-21 18:00:00,464 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-21 18:00:00,464 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 06:00:00" (1/1) ... [2021-12-21 18:00:00,465 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1deab30e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 06:00:00, skipping insertion in model container [2021-12-21 18:00:00,465 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 06:00:00" (1/1) ... [2021-12-21 18:00:00,475 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-21 18:00:00,501 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-21 18:00:00,762 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-21 18:00:00,769 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) [2021-12-21 18:00:00,770 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@22761447 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 06:00:00, skipping insertion in model container [2021-12-21 18:00:00,770 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-21 18:00:00,771 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-12-21 18:00:00,772 INFO L158 Benchmark]: Toolchain (without parser) took 310.71ms. Allocated memory is still 125.8MB. Free memory was 94.9MB in the beginning and 100.0MB in the end (delta: -5.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-21 18:00:00,773 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 83.9MB. Free memory was 43.6MB in the beginning and 43.5MB in the end (delta: 70.0kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-21 18:00:00,775 INFO L158 Benchmark]: CACSL2BoogieTranslator took 308.96ms. Allocated memory is still 125.8MB. Free memory was 94.5MB in the beginning and 100.0MB in the end (delta: -5.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-21 18:00:00,776 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 83.9MB. Free memory was 43.6MB in the beginning and 43.5MB in the end (delta: 70.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 308.96ms. Allocated memory is still 125.8MB. Free memory was 94.5MB in the beginning and 100.0MB in the end (delta: -5.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 515]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### 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/lis_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 302a384d858b88c7c93de8a2b1030a1c448a13b5bf510dfc42e11e1c01d4bd66 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-ff03de6 [2021-12-21 18:00:02,574 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-21 18:00:02,575 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-21 18:00:02,599 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-21 18:00:02,600 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-21 18:00:02,603 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-21 18:00:02,606 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-21 18:00:02,610 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-21 18:00:02,612 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-21 18:00:02,614 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-21 18:00:02,615 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-21 18:00:02,631 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-21 18:00:02,632 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-21 18:00:02,633 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-21 18:00:02,648 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-21 18:00:02,649 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-21 18:00:02,649 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-21 18:00:02,650 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-21 18:00:02,651 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-21 18:00:02,652 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-21 18:00:02,653 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-21 18:00:02,654 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-21 18:00:02,655 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-21 18:00:02,655 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-21 18:00:02,665 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-21 18:00:02,666 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-21 18:00:02,666 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-21 18:00:02,667 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-21 18:00:02,668 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-21 18:00:02,668 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-21 18:00:02,669 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-21 18:00:02,669 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-21 18:00:02,670 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-21 18:00:02,671 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-21 18:00:02,672 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-21 18:00:02,672 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-21 18:00:02,673 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-21 18:00:02,673 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-21 18:00:02,673 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-21 18:00:02,674 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-21 18:00:02,675 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-21 18:00:02,676 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2021-12-21 18:00:02,704 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-21 18:00:02,705 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-21 18:00:02,706 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-21 18:00:02,706 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-21 18:00:02,707 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-21 18:00:02,707 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-21 18:00:02,708 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-21 18:00:02,708 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-21 18:00:02,708 INFO L138 SettingsManager]: * Use SBE=true [2021-12-21 18:00:02,708 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-21 18:00:02,709 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-21 18:00:02,709 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-21 18:00:02,709 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-21 18:00:02,709 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-21 18:00:02,710 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-21 18:00:02,710 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-12-21 18:00:02,710 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-12-21 18:00:02,710 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-12-21 18:00:02,710 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-21 18:00:02,710 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-12-21 18:00:02,711 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-12-21 18:00:02,711 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-12-21 18:00:02,711 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-21 18:00:02,711 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-21 18:00:02,711 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-21 18:00:02,711 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-21 18:00:02,712 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-21 18:00:02,712 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-21 18:00:02,712 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-21 18:00:02,712 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-21 18:00:02,712 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-12-21 18:00:02,713 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-12-21 18:00:02,713 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-21 18:00:02,713 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-12-21 18:00:02,713 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 302a384d858b88c7c93de8a2b1030a1c448a13b5bf510dfc42e11e1c01d4bd66 [2021-12-21 18:00:03,086 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-21 18:00:03,109 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-21 18:00:03,112 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-21 18:00:03,112 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-21 18:00:03,113 INFO L275 PluginConnector]: CDTParser initialized [2021-12-21 18:00:03,114 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-memsafety/lis_unsafe.i [2021-12-21 18:00:03,166 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/23b99e7dd/e8d151a15b994d0db452e7a6e6634abf/FLAG891243d42 [2021-12-21 18:00:03,548 INFO L306 CDTParser]: Found 1 translation units. [2021-12-21 18:00:03,548 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-memsafety/lis_unsafe.i [2021-12-21 18:00:03,562 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/23b99e7dd/e8d151a15b994d0db452e7a6e6634abf/FLAG891243d42 [2021-12-21 18:00:03,575 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/23b99e7dd/e8d151a15b994d0db452e7a6e6634abf [2021-12-21 18:00:03,577 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-21 18:00:03,578 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-21 18:00:03,579 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-21 18:00:03,580 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-21 18:00:03,582 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-21 18:00:03,582 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 06:00:03" (1/1) ... [2021-12-21 18:00:03,583 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f8b595b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 06:00:03, skipping insertion in model container [2021-12-21 18:00:03,583 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 06:00:03" (1/1) ... [2021-12-21 18:00:03,588 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-21 18:00:03,619 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-21 18:00:03,841 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-21 18:00:03,847 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-12-21 18:00:03,860 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-21 18:00:03,896 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-21 18:00:03,899 INFO L203 MainTranslator]: Completed pre-run [2021-12-21 18:00:03,922 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-21 18:00:03,939 INFO L208 MainTranslator]: Completed translation [2021-12-21 18:00:03,940 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 06:00:03 WrapperNode [2021-12-21 18:00:03,940 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-21 18:00:03,941 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-21 18:00:03,941 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-21 18:00:03,941 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-21 18:00:03,945 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 06:00:03" (1/1) ... [2021-12-21 18:00:03,957 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 06:00:03" (1/1) ... [2021-12-21 18:00:03,979 INFO L137 Inliner]: procedures = 117, calls = 18, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 101 [2021-12-21 18:00:03,979 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-21 18:00:03,980 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-21 18:00:03,980 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-21 18:00:03,980 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-21 18:00:03,985 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 06:00:03" (1/1) ... [2021-12-21 18:00:03,986 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 06:00:03" (1/1) ... [2021-12-21 18:00:03,991 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 06:00:03" (1/1) ... [2021-12-21 18:00:03,991 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 06:00:03" (1/1) ... [2021-12-21 18:00:03,995 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 06:00:03" (1/1) ... [2021-12-21 18:00:03,998 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 06:00:03" (1/1) ... [2021-12-21 18:00:03,999 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 06:00:03" (1/1) ... [2021-12-21 18:00:04,001 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-21 18:00:04,001 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-21 18:00:04,001 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-21 18:00:04,001 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-21 18:00:04,002 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 06:00:03" (1/1) ... [2021-12-21 18:00:04,006 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-21 18:00:04,016 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 18:00:04,040 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) [2021-12-21 18:00:04,047 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 [2021-12-21 18:00:04,069 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-12-21 18:00:04,069 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-21 18:00:04,069 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-21 18:00:04,069 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-12-21 18:00:04,069 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-21 18:00:04,070 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-21 18:00:04,136 INFO L234 CfgBuilder]: Building ICFG [2021-12-21 18:00:04,137 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-21 18:00:04,465 INFO L275 CfgBuilder]: Performing block encoding [2021-12-21 18:00:04,470 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-21 18:00:04,470 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-12-21 18:00:04,471 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 06:00:04 BoogieIcfgContainer [2021-12-21 18:00:04,472 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-21 18:00:04,473 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-21 18:00:04,473 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-21 18:00:04,475 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-21 18:00:04,476 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.12 06:00:03" (1/3) ... [2021-12-21 18:00:04,476 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@499d8fe4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 06:00:04, skipping insertion in model container [2021-12-21 18:00:04,476 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 06:00:03" (2/3) ... [2021-12-21 18:00:04,477 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@499d8fe4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 06:00:04, skipping insertion in model container [2021-12-21 18:00:04,477 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 06:00:04" (3/3) ... [2021-12-21 18:00:04,478 INFO L111 eAbstractionObserver]: Analyzing ICFG lis_unsafe.i [2021-12-21 18:00:04,483 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-21 18:00:04,483 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 29 error locations. [2021-12-21 18:00:04,527 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-21 18:00:04,534 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, mAutomataTypeConcurrency=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 [2021-12-21 18:00:04,534 INFO L340 AbstractCegarLoop]: Starting to check reachability of 29 error locations. [2021-12-21 18:00:04,557 INFO L276 IsEmpty]: Start isEmpty. Operand has 71 states, 41 states have (on average 2.0) internal successors, (82), 70 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 18:00:04,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-12-21 18:00:04,565 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 18:00:04,565 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-12-21 18:00:04,566 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 25 more)] === [2021-12-21 18:00:04,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 18:00:04,569 INFO L85 PathProgramCache]: Analyzing trace with hash 889508873, now seen corresponding path program 1 times [2021-12-21 18:00:04,576 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-21 18:00:04,577 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1180568855] [2021-12-21 18:00:04,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 18:00:04,578 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-21 18:00:04,578 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-21 18:00:04,580 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) [2021-12-21 18:00:04,599 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-12-21 18:00:04,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 18:00:04,673 INFO L263 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-21 18:00:04,678 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-21 18:00:04,742 INFO L353 Elim1Store]: treesize reduction 12, result has 40.0 percent of original size [2021-12-21 18:00:04,742 INFO L387 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 1 case distinctions, treesize of input 9 treesize of output 14 [2021-12-21 18:00:04,764 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 18:00:04,764 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-21 18:00:04,765 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-21 18:00:04,765 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1180568855] [2021-12-21 18:00:04,765 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1180568855] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 18:00:04,765 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 18:00:04,766 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-21 18:00:04,767 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [741951454] [2021-12-21 18:00:04,768 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 18:00:04,771 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-21 18:00:04,772 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-21 18:00:04,793 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-21 18:00:04,794 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-21 18:00:04,795 INFO L87 Difference]: Start difference. First operand has 71 states, 41 states have (on average 2.0) internal successors, (82), 70 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 18:00:04,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 18:00:04,930 INFO L93 Difference]: Finished difference Result 63 states and 70 transitions. [2021-12-21 18:00:04,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-21 18:00:04,932 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2021-12-21 18:00:04,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 18:00:04,937 INFO L225 Difference]: With dead ends: 63 [2021-12-21 18:00:04,937 INFO L226 Difference]: Without dead ends: 61 [2021-12-21 18:00:04,938 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-21 18:00:04,945 INFO L933 BasicCegarLoop]: 45 mSDtfsCounter, 53 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 53 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-21 18:00:04,946 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [53 Valid, 53 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-21 18:00:04,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2021-12-21 18:00:04,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 61. [2021-12-21 18:00:04,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 40 states have (on average 1.7) internal successors, (68), 60 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 18:00:04,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 68 transitions. [2021-12-21 18:00:04,981 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 68 transitions. Word has length 6 [2021-12-21 18:00:04,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 18:00:04,982 INFO L470 AbstractCegarLoop]: Abstraction has 61 states and 68 transitions. [2021-12-21 18:00:04,983 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 18:00:04,983 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 68 transitions. [2021-12-21 18:00:04,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-12-21 18:00:04,984 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 18:00:04,984 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-12-21 18:00:04,996 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-12-21 18:00:05,193 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-21 18:00:05,194 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 25 more)] === [2021-12-21 18:00:05,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 18:00:05,195 INFO L85 PathProgramCache]: Analyzing trace with hash 889508874, now seen corresponding path program 1 times [2021-12-21 18:00:05,197 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-21 18:00:05,197 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1605458797] [2021-12-21 18:00:05,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 18:00:05,198 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-21 18:00:05,198 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-21 18:00:05,212 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) [2021-12-21 18:00:05,236 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-12-21 18:00:05,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 18:00:05,283 INFO L263 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 10 conjunts are in the unsatisfiable core [2021-12-21 18:00:05,286 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-21 18:00:05,342 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-21 18:00:05,343 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 11 [2021-12-21 18:00:05,351 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 9 [2021-12-21 18:00:05,375 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 18:00:05,375 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-21 18:00:05,375 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-21 18:00:05,375 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1605458797] [2021-12-21 18:00:05,376 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1605458797] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 18:00:05,376 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 18:00:05,376 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-21 18:00:05,376 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1112027279] [2021-12-21 18:00:05,376 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 18:00:05,377 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-21 18:00:05,377 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-21 18:00:05,378 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-21 18:00:05,378 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-21 18:00:05,378 INFO L87 Difference]: Start difference. First operand 61 states and 68 transitions. Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 18:00:05,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 18:00:05,555 INFO L93 Difference]: Finished difference Result 126 states and 140 transitions. [2021-12-21 18:00:05,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-21 18:00:05,556 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2021-12-21 18:00:05,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 18:00:05,557 INFO L225 Difference]: With dead ends: 126 [2021-12-21 18:00:05,557 INFO L226 Difference]: Without dead ends: 126 [2021-12-21 18:00:05,557 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-21 18:00:05,558 INFO L933 BasicCegarLoop]: 62 mSDtfsCounter, 76 mSDsluCounter, 92 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 154 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-21 18:00:05,558 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [76 Valid, 154 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-21 18:00:05,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2021-12-21 18:00:05,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 64. [2021-12-21 18:00:05,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64 states, 43 states have (on average 1.6744186046511629) internal successors, (72), 63 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 18:00:05,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 72 transitions. [2021-12-21 18:00:05,564 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 72 transitions. Word has length 6 [2021-12-21 18:00:05,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 18:00:05,564 INFO L470 AbstractCegarLoop]: Abstraction has 64 states and 72 transitions. [2021-12-21 18:00:05,564 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 18:00:05,564 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 72 transitions. [2021-12-21 18:00:05,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-12-21 18:00:05,565 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 18:00:05,565 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-12-21 18:00:05,581 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Ended with exit code 0 [2021-12-21 18:00:05,770 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-21 18:00:05,771 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 25 more)] === [2021-12-21 18:00:05,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 18:00:05,771 INFO L85 PathProgramCache]: Analyzing trace with hash 889568456, now seen corresponding path program 1 times [2021-12-21 18:00:05,772 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-21 18:00:05,772 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1208437506] [2021-12-21 18:00:05,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 18:00:05,772 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-21 18:00:05,772 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-21 18:00:05,773 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) [2021-12-21 18:00:05,775 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-12-21 18:00:05,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 18:00:05,810 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-21 18:00:05,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 18:00:05,853 INFO L133 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2021-12-21 18:00:05,853 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-12-21 18:00:05,854 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1REQUIRES_VIOLATION (28 of 29 remaining) [2021-12-21 18:00:05,855 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATION (27 of 29 remaining) [2021-12-21 18:00:05,855 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATION (26 of 29 remaining) [2021-12-21 18:00:05,855 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATION (25 of 29 remaining) [2021-12-21 18:00:05,856 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATION (24 of 29 remaining) [2021-12-21 18:00:05,856 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5REQUIRES_VIOLATION (23 of 29 remaining) [2021-12-21 18:00:05,856 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6REQUIRES_VIOLATION (22 of 29 remaining) [2021-12-21 18:00:05,856 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7REQUIRES_VIOLATION (21 of 29 remaining) [2021-12-21 18:00:05,856 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8REQUIRES_VIOLATION (20 of 29 remaining) [2021-12-21 18:00:05,856 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9REQUIRES_VIOLATION (19 of 29 remaining) [2021-12-21 18:00:05,857 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10REQUIRES_VIOLATION (18 of 29 remaining) [2021-12-21 18:00:05,857 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11REQUIRES_VIOLATION (17 of 29 remaining) [2021-12-21 18:00:05,857 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12REQUIRES_VIOLATION (16 of 29 remaining) [2021-12-21 18:00:05,857 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13REQUIRES_VIOLATION (15 of 29 remaining) [2021-12-21 18:00:05,857 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14REQUIRES_VIOLATION (14 of 29 remaining) [2021-12-21 18:00:05,857 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15REQUIRES_VIOLATION (13 of 29 remaining) [2021-12-21 18:00:05,858 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr16REQUIRES_VIOLATION (12 of 29 remaining) [2021-12-21 18:00:05,858 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr17REQUIRES_VIOLATION (11 of 29 remaining) [2021-12-21 18:00:05,858 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr18REQUIRES_VIOLATION (10 of 29 remaining) [2021-12-21 18:00:05,858 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr19REQUIRES_VIOLATION (9 of 29 remaining) [2021-12-21 18:00:05,858 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr20REQUIRES_VIOLATION (8 of 29 remaining) [2021-12-21 18:00:05,858 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr21REQUIRES_VIOLATION (7 of 29 remaining) [2021-12-21 18:00:05,859 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_FREE (6 of 29 remaining) [2021-12-21 18:00:05,859 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr23ASSERT_VIOLATIONMEMORY_FREE (5 of 29 remaining) [2021-12-21 18:00:05,859 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_FREE (4 of 29 remaining) [2021-12-21 18:00:05,859 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_FREE (3 of 29 remaining) [2021-12-21 18:00:05,859 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_FREE (2 of 29 remaining) [2021-12-21 18:00:05,859 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr27ASSERT_VIOLATIONMEMORY_FREE (1 of 29 remaining) [2021-12-21 18:00:05,860 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_LEAK (0 of 29 remaining) [2021-12-21 18:00:05,869 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-12-21 18:00:06,066 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-21 18:00:06,069 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2021-12-21 18:00:06,072 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-21 18:00:06,087 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.12 06:00:06 BoogieIcfgContainer [2021-12-21 18:00:06,088 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-21 18:00:06,095 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-21 18:00:06,095 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-21 18:00:06,095 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-21 18:00:06,095 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 06:00:04" (3/4) ... [2021-12-21 18:00:06,097 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-12-21 18:00:06,124 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-12-21 18:00:06,124 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-21 18:00:06,125 INFO L158 Benchmark]: Toolchain (without parser) took 2546.70ms. Allocated memory was 54.5MB in the beginning and 77.6MB in the end (delta: 23.1MB). Free memory was 31.0MB in the beginning and 37.9MB in the end (delta: -6.9MB). Peak memory consumption was 16.5MB. Max. memory is 16.1GB. [2021-12-21 18:00:06,125 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 54.5MB. Free memory was 36.4MB in the beginning and 36.3MB in the end (delta: 48.0kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-21 18:00:06,125 INFO L158 Benchmark]: CACSL2BoogieTranslator took 360.75ms. Allocated memory was 54.5MB in the beginning and 77.6MB in the end (delta: 23.1MB). Free memory was 30.8MB in the beginning and 51.5MB in the end (delta: -20.7MB). Peak memory consumption was 8.2MB. Max. memory is 16.1GB. [2021-12-21 18:00:06,126 INFO L158 Benchmark]: Boogie Procedure Inliner took 38.86ms. Allocated memory is still 77.6MB. Free memory was 51.3MB in the beginning and 49.2MB in the end (delta: 2.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-12-21 18:00:06,126 INFO L158 Benchmark]: Boogie Preprocessor took 20.85ms. Allocated memory is still 77.6MB. Free memory was 49.2MB in the beginning and 47.7MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-21 18:00:06,128 INFO L158 Benchmark]: RCFGBuilder took 470.63ms. Allocated memory is still 77.6MB. Free memory was 47.7MB in the beginning and 44.9MB in the end (delta: 2.8MB). Peak memory consumption was 8.6MB. Max. memory is 16.1GB. [2021-12-21 18:00:06,128 INFO L158 Benchmark]: TraceAbstraction took 1620.95ms. Allocated memory is still 77.6MB. Free memory was 44.2MB in the beginning and 39.7MB in the end (delta: 4.6MB). Peak memory consumption was 3.8MB. Max. memory is 16.1GB. [2021-12-21 18:00:06,128 INFO L158 Benchmark]: Witness Printer took 29.90ms. Allocated memory is still 77.6MB. Free memory was 39.3MB in the beginning and 37.9MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-21 18:00:06,130 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 54.5MB. Free memory was 36.4MB in the beginning and 36.3MB in the end (delta: 48.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 360.75ms. Allocated memory was 54.5MB in the beginning and 77.6MB in the end (delta: 23.1MB). Free memory was 30.8MB in the beginning and 51.5MB in the end (delta: -20.7MB). Peak memory consumption was 8.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 38.86ms. Allocated memory is still 77.6MB. Free memory was 51.3MB in the beginning and 49.2MB in the end (delta: 2.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 20.85ms. Allocated memory is still 77.6MB. Free memory was 49.2MB in the beginning and 47.7MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 470.63ms. Allocated memory is still 77.6MB. Free memory was 47.7MB in the beginning and 44.9MB in the end (delta: 2.8MB). Peak memory consumption was 8.6MB. Max. memory is 16.1GB. * TraceAbstraction took 1620.95ms. Allocated memory is still 77.6MB. Free memory was 44.2MB in the beginning and 39.7MB in the end (delta: 4.6MB). Peak memory consumption was 3.8MB. Max. memory is 16.1GB. * Witness Printer took 29.90ms. Allocated memory is still 77.6MB. Free memory was 39.3MB in the beginning and 37.9MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 518]: pointer dereference may fail pointer dereference may fail We found a FailurePath: [L531] int *a; [L532] int N = __VERIFIER_nondet_int(); [L533] COND FALSE !(N < 1) VAL [N=1073741824] [L535] CALL lis(a, N) [L514] int *best, *prev, i, j, max = 0; [L515] best = (int*) malloc(sizeof(int) * N) [L516] prev = (int*) malloc(sizeof(int) * N) [L517] i = 0 VAL [\old(N)=1073741824, a={6:5}, a={6:5}, best={1:0}, i=0, max=0, N=1073741824, prev={2:0}] [L517] COND TRUE i < N VAL [\old(N)=1073741824, a={6:5}, a={6:5}, best={1:0}, i=0, max=0, N=1073741824, prev={2:0}] [L518] best[i] = 1 - 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: 521]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 521]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 521]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 521]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 521]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 521]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 521]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 521]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 522]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 522]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 522]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 522]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 522]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 522]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 524]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 524]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 525]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 525]: 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 free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 526]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 526]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 527]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 527]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 527]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 530]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 71 locations, 29 error locations. Started 1 CEGAR loops. OverallTime: 1.5s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 129 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 129 mSDsluCounter, 207 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 100 mSDsCounter, 8 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 89 IncrementalHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 8 mSolverCounterUnsat, 107 mSDtfsCounter, 89 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=71occurred in iteration=0, InterpolantAutomatonStates: 7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 62 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 18 NumberOfCodeBlocks, 18 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 48 SizeOfPredicates, 5 NumberOfNonLiveVariables, 70 ConjunctsInSsa, 14 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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! [2021-12-21 18:00:06,169 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... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(valid-deref)