./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/bitvector-regression/integerpromotion-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability 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/AutomizerReach.xml -i ../sv-benchmarks/c/bitvector-regression/integerpromotion-2.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-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 ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 15c59cd64cbdab762f2e01ef0d03122497382232 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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/AutomizerReach.xml -i ../sv-benchmarks/c/bitvector-regression/integerpromotion-2.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-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 ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 15c59cd64cbdab762f2e01ef0d03122497382232 .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-20ed64e [2021-08-25 20:08:07,707 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-25 20:08:07,726 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-25 20:08:07,778 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-25 20:08:07,779 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-25 20:08:07,782 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-25 20:08:07,783 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-25 20:08:07,788 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-25 20:08:07,790 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-25 20:08:07,794 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-25 20:08:07,795 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-25 20:08:07,810 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-25 20:08:07,810 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-25 20:08:07,813 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-25 20:08:07,814 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-25 20:08:07,820 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-25 20:08:07,821 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-25 20:08:07,821 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-25 20:08:07,824 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-25 20:08:07,829 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-25 20:08:07,830 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-25 20:08:07,831 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-25 20:08:07,833 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-25 20:08:07,834 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-25 20:08:07,840 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-25 20:08:07,841 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-25 20:08:07,841 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-25 20:08:07,843 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-25 20:08:07,844 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-25 20:08:07,844 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-25 20:08:07,845 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-25 20:08:07,845 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-25 20:08:07,847 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-25 20:08:07,848 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-25 20:08:07,849 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-25 20:08:07,849 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-25 20:08:07,850 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-25 20:08:07,850 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-25 20:08:07,850 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-25 20:08:07,852 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-25 20:08:07,852 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-25 20:08:07,856 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-08-25 20:08:07,893 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-25 20:08:07,893 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-25 20:08:07,894 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-25 20:08:07,894 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-25 20:08:07,896 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-25 20:08:07,896 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-25 20:08:07,896 INFO L138 SettingsManager]: * Use SBE=true [2021-08-25 20:08:07,897 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-25 20:08:07,897 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-25 20:08:07,897 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-25 20:08:07,898 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-25 20:08:07,898 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-25 20:08:07,898 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-25 20:08:07,899 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-25 20:08:07,899 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-25 20:08:07,899 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-25 20:08:07,899 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-25 20:08:07,899 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-25 20:08:07,900 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-25 20:08:07,900 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-25 20:08:07,900 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-25 20:08:07,900 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-25 20:08:07,901 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-25 20:08:07,901 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-25 20:08:07,901 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-25 20:08:07,901 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-25 20:08:07,902 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-25 20:08:07,902 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-25 20:08:07,902 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-25 20:08:07,902 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-25 20:08:07,902 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 15c59cd64cbdab762f2e01ef0d03122497382232 [2021-08-25 20:08:08,334 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-25 20:08:08,363 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-25 20:08:08,366 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-25 20:08:08,367 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-25 20:08:08,367 INFO L275 PluginConnector]: CDTParser initialized [2021-08-25 20:08:08,368 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/bitvector-regression/integerpromotion-2.c [2021-08-25 20:08:08,423 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8b4d3ae0c/e6b1bfbaf0124160b21a29a4a2d13e25/FLAG734fad127 [2021-08-25 20:08:08,945 INFO L306 CDTParser]: Found 1 translation units. [2021-08-25 20:08:08,945 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/bitvector-regression/integerpromotion-2.c [2021-08-25 20:08:08,950 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8b4d3ae0c/e6b1bfbaf0124160b21a29a4a2d13e25/FLAG734fad127 [2021-08-25 20:08:09,443 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8b4d3ae0c/e6b1bfbaf0124160b21a29a4a2d13e25 [2021-08-25 20:08:09,445 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-25 20:08:09,447 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-25 20:08:09,450 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-25 20:08:09,450 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-25 20:08:09,453 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-25 20:08:09,453 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 08:08:09" (1/1) ... [2021-08-25 20:08:09,473 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@664c8dc1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 08:08:09, skipping insertion in model container [2021-08-25 20:08:09,474 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 08:08:09" (1/1) ... [2021-08-25 20:08:09,482 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-25 20:08:09,491 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-25 20:08:09,670 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/bitvector-regression/integerpromotion-2.c[423,436] [2021-08-25 20:08:09,673 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-25 20:08:09,684 INFO L203 MainTranslator]: Completed pre-run [2021-08-25 20:08:09,698 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/bitvector-regression/integerpromotion-2.c[423,436] [2021-08-25 20:08:09,699 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-25 20:08:09,759 INFO L208 MainTranslator]: Completed translation [2021-08-25 20:08:09,783 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 08:08:09 WrapperNode [2021-08-25 20:08:09,785 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-25 20:08:09,786 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-25 20:08:09,786 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-25 20:08:09,787 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-25 20:08:09,792 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 08:08:09" (1/1) ... [2021-08-25 20:08:09,799 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 08:08:09" (1/1) ... [2021-08-25 20:08:09,813 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-25 20:08:09,814 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-25 20:08:09,814 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-25 20:08:09,814 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-25 20:08:09,820 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 08:08:09" (1/1) ... [2021-08-25 20:08:09,820 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 08:08:09" (1/1) ... [2021-08-25 20:08:09,822 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 08:08:09" (1/1) ... [2021-08-25 20:08:09,822 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 08:08:09" (1/1) ... [2021-08-25 20:08:09,827 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 08:08:09" (1/1) ... [2021-08-25 20:08:09,828 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 08:08:09" (1/1) ... [2021-08-25 20:08:09,830 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 08:08:09" (1/1) ... [2021-08-25 20:08:09,835 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-25 20:08:09,837 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-25 20:08:09,837 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-25 20:08:09,837 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-25 20:08:09,838 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 08:08:09" (1/1) ... [2021-08-25 20:08:09,845 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-25 20:08:09,851 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-25 20:08:09,865 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) [2021-08-25 20:08:09,899 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 [2021-08-25 20:08:09,915 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-25 20:08:09,915 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-25 20:08:09,916 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-08-25 20:08:09,916 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-25 20:08:10,120 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-25 20:08:10,120 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-08-25 20:08:10,122 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 08:08:10 BoogieIcfgContainer [2021-08-25 20:08:10,122 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-25 20:08:10,124 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-25 20:08:10,124 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-25 20:08:10,126 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-25 20:08:10,127 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.08 08:08:09" (1/3) ... [2021-08-25 20:08:10,127 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ed5b927 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 08:08:10, skipping insertion in model container [2021-08-25 20:08:10,128 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 08:08:09" (2/3) ... [2021-08-25 20:08:10,128 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ed5b927 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 08:08:10, skipping insertion in model container [2021-08-25 20:08:10,128 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 08:08:10" (3/3) ... [2021-08-25 20:08:10,130 INFO L111 eAbstractionObserver]: Analyzing ICFG integerpromotion-2.c [2021-08-25 20:08:10,136 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-25 20:08:10,136 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-08-25 20:08:10,186 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-08-25 20:08:10,194 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=true, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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 [2021-08-25 20:08:10,194 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-08-25 20:08:10,206 INFO L276 IsEmpty]: Start isEmpty. Operand has 8 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 7 states have internal predecessors, (8), 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) [2021-08-25 20:08:10,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-08-25 20:08:10,210 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 20:08:10,211 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-08-25 20:08:10,211 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 20:08:10,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 20:08:10,216 INFO L82 PathProgramCache]: Analyzing trace with hash 925607, now seen corresponding path program 1 times [2021-08-25 20:08:10,227 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 20:08:10,227 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [640231588] [2021-08-25 20:08:10,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 20:08:10,228 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 20:08:10,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-25 20:08:10,317 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-25 20:08:10,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-25 20:08:10,346 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-25 20:08:10,347 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-08-25 20:08:10,348 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-08-25 20:08:10,350 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-08-25 20:08:10,354 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-25 20:08:10,372 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.08 08:08:10 BoogieIcfgContainer [2021-08-25 20:08:10,373 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-25 20:08:10,376 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-25 20:08:10,376 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-25 20:08:10,377 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-25 20:08:10,377 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 08:08:10" (3/4) ... [2021-08-25 20:08:10,380 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-08-25 20:08:10,380 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-25 20:08:10,382 INFO L168 Benchmark]: Toolchain (without parser) took 933.79 ms. Allocated memory was 50.3 MB in the beginning and 65.0 MB in the end (delta: 14.7 MB). Free memory was 27.6 MB in the beginning and 41.4 MB in the end (delta: -13.8 MB). Peak memory consumption was 670.1 kB. Max. memory is 16.1 GB. [2021-08-25 20:08:10,383 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 50.3 MB. Free memory was 31.8 MB in the beginning and 31.8 MB in the end (delta: 41.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-25 20:08:10,384 INFO L168 Benchmark]: CACSL2BoogieTranslator took 335.26 ms. Allocated memory was 50.3 MB in the beginning and 65.0 MB in the end (delta: 14.7 MB). Free memory was 27.5 MB in the beginning and 49.6 MB in the end (delta: -22.2 MB). Peak memory consumption was 5.4 MB. Max. memory is 16.1 GB. [2021-08-25 20:08:10,384 INFO L168 Benchmark]: Boogie Procedure Inliner took 27.04 ms. Allocated memory is still 65.0 MB. Free memory was 49.5 MB in the beginning and 48.2 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-25 20:08:10,385 INFO L168 Benchmark]: Boogie Preprocessor took 22.17 ms. Allocated memory is still 65.0 MB. Free memory was 48.2 MB in the beginning and 47.2 MB in the end (delta: 998.7 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-25 20:08:10,385 INFO L168 Benchmark]: RCFGBuilder took 285.26 ms. Allocated memory is still 65.0 MB. Free memory was 47.2 MB in the beginning and 37.0 MB in the end (delta: 10.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-08-25 20:08:10,386 INFO L168 Benchmark]: TraceAbstraction took 249.08 ms. Allocated memory is still 65.0 MB. Free memory was 36.6 MB in the beginning and 41.7 MB in the end (delta: -5.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-25 20:08:10,386 INFO L168 Benchmark]: Witness Printer took 4.11 ms. Allocated memory is still 65.0 MB. Free memory was 41.7 MB in the beginning and 41.4 MB in the end (delta: 272.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-25 20:08:10,389 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 50.3 MB. Free memory was 31.8 MB in the beginning and 31.8 MB in the end (delta: 41.8 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 335.26 ms. Allocated memory was 50.3 MB in the beginning and 65.0 MB in the end (delta: 14.7 MB). Free memory was 27.5 MB in the beginning and 49.6 MB in the end (delta: -22.2 MB). Peak memory consumption was 5.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 27.04 ms. Allocated memory is still 65.0 MB. Free memory was 49.5 MB in the beginning and 48.2 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 22.17 ms. Allocated memory is still 65.0 MB. Free memory was 48.2 MB in the beginning and 47.2 MB in the end (delta: 998.7 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 285.26 ms. Allocated memory is still 65.0 MB. Free memory was 47.2 MB in the beginning and 37.0 MB in the end (delta: 10.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 249.08 ms. Allocated memory is still 65.0 MB. Free memory was 36.6 MB in the beginning and 41.7 MB in the end (delta: -5.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 4.11 ms. Allocated memory is still 65.0 MB. Free memory was 41.7 MB in the beginning and 41.4 MB in the end (delta: 272.6 kB). There was no memory consumed. 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 - UnprovableResult [Line: 14]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of bitwiseComplement at line 8. Possible FailurePath: [L7] unsigned char port = 0x5a; [L8] unsigned char result_8 = ( ~port ) >> 4; [L9] COND TRUE result_8 != 0xfa [L14] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 8 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 168.8ms, OverallIterations: 1, TraceHistogramMax: 1, EmptinessCheckTime: 6.6ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 8.8ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=8occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 7.0ms SsaConstructionTime, 42.2ms SatisfiabilityAnalysisTime, 0.0ms InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 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 could not prove your program: unable to determine feasibility of some traces [2021-08-25 20:08:10,455 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... ### Bit-precise run ### This is Ultimate 0.2.1-dev-20ed64e [2021-08-25 20:08:12,860 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-25 20:08:12,863 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-25 20:08:12,896 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-25 20:08:12,897 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-25 20:08:12,898 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-25 20:08:12,899 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-25 20:08:12,901 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-25 20:08:12,903 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-25 20:08:12,904 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-25 20:08:12,905 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-25 20:08:12,906 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-25 20:08:12,906 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-25 20:08:12,907 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-25 20:08:12,909 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-25 20:08:12,910 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-25 20:08:12,910 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-25 20:08:12,911 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-25 20:08:12,913 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-25 20:08:12,914 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-25 20:08:12,916 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-25 20:08:12,917 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-25 20:08:12,918 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-25 20:08:12,919 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-25 20:08:12,921 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-25 20:08:12,921 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-25 20:08:12,921 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-25 20:08:12,922 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-25 20:08:12,923 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-25 20:08:12,924 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-25 20:08:12,924 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-25 20:08:12,925 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-25 20:08:12,925 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-25 20:08:12,926 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-25 20:08:12,927 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-25 20:08:12,927 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-25 20:08:12,928 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-25 20:08:12,928 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-25 20:08:12,928 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-25 20:08:12,929 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-25 20:08:12,930 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-25 20:08:12,931 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-08-25 20:08:12,958 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-25 20:08:12,960 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-25 20:08:12,962 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-25 20:08:12,962 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-25 20:08:12,965 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-25 20:08:12,966 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-25 20:08:12,967 INFO L138 SettingsManager]: * Use SBE=true [2021-08-25 20:08:12,967 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-25 20:08:12,967 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-25 20:08:12,967 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-25 20:08:12,968 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-25 20:08:12,968 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-25 20:08:12,968 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-25 20:08:12,969 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-25 20:08:12,969 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-08-25 20:08:12,969 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-08-25 20:08:12,969 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-25 20:08:12,969 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-25 20:08:12,970 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-25 20:08:12,970 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-25 20:08:12,970 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-25 20:08:12,970 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-25 20:08:12,970 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-25 20:08:12,971 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-25 20:08:12,971 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-25 20:08:12,971 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-25 20:08:12,971 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-25 20:08:12,971 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-08-25 20:08:12,972 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-08-25 20:08:12,972 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-25 20:08:12,972 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-25 20:08:12,972 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-08-25 20:08:12,973 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 15c59cd64cbdab762f2e01ef0d03122497382232 [2021-08-25 20:08:13,270 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-25 20:08:13,308 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-25 20:08:13,311 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-25 20:08:13,311 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-25 20:08:13,313 INFO L275 PluginConnector]: CDTParser initialized [2021-08-25 20:08:13,314 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/bitvector-regression/integerpromotion-2.c [2021-08-25 20:08:13,376 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/18dafa4a5/4412325a202e445fa172ec0f41d90f42/FLAG308519cd5 [2021-08-25 20:08:13,907 INFO L306 CDTParser]: Found 1 translation units. [2021-08-25 20:08:13,907 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/bitvector-regression/integerpromotion-2.c [2021-08-25 20:08:13,913 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/18dafa4a5/4412325a202e445fa172ec0f41d90f42/FLAG308519cd5 [2021-08-25 20:08:14,314 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/18dafa4a5/4412325a202e445fa172ec0f41d90f42 [2021-08-25 20:08:14,317 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-25 20:08:14,325 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-25 20:08:14,327 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-25 20:08:14,327 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-25 20:08:14,330 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-25 20:08:14,332 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 08:08:14" (1/1) ... [2021-08-25 20:08:14,333 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@29f9aaa5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 08:08:14, skipping insertion in model container [2021-08-25 20:08:14,348 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 08:08:14" (1/1) ... [2021-08-25 20:08:14,355 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-25 20:08:14,376 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-25 20:08:14,568 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/bitvector-regression/integerpromotion-2.c[423,436] [2021-08-25 20:08:14,575 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-25 20:08:14,587 INFO L203 MainTranslator]: Completed pre-run [2021-08-25 20:08:14,601 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/bitvector-regression/integerpromotion-2.c[423,436] [2021-08-25 20:08:14,602 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-25 20:08:14,615 INFO L208 MainTranslator]: Completed translation [2021-08-25 20:08:14,616 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 08:08:14 WrapperNode [2021-08-25 20:08:14,617 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-25 20:08:14,618 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-25 20:08:14,619 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-25 20:08:14,619 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-25 20:08:14,625 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 08:08:14" (1/1) ... [2021-08-25 20:08:14,633 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 08:08:14" (1/1) ... [2021-08-25 20:08:14,651 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-25 20:08:14,652 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-25 20:08:14,652 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-25 20:08:14,652 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-25 20:08:14,658 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 08:08:14" (1/1) ... [2021-08-25 20:08:14,659 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 08:08:14" (1/1) ... [2021-08-25 20:08:14,681 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 08:08:14" (1/1) ... [2021-08-25 20:08:14,681 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 08:08:14" (1/1) ... [2021-08-25 20:08:14,687 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 08:08:14" (1/1) ... [2021-08-25 20:08:14,689 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 08:08:14" (1/1) ... [2021-08-25 20:08:14,694 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 08:08:14" (1/1) ... [2021-08-25 20:08:14,695 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-25 20:08:14,697 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-25 20:08:14,697 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-25 20:08:14,697 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-25 20:08:14,698 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 08:08:14" (1/1) ... [2021-08-25 20:08:14,704 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-25 20:08:14,710 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-25 20:08:14,721 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) [2021-08-25 20:08:14,752 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 [2021-08-25 20:08:14,766 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-25 20:08:14,767 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-25 20:08:14,767 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-08-25 20:08:14,767 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-25 20:08:14,984 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-25 20:08:14,986 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-08-25 20:08:14,987 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 08:08:14 BoogieIcfgContainer [2021-08-25 20:08:14,987 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-25 20:08:14,989 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-25 20:08:14,989 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-25 20:08:14,992 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-25 20:08:14,993 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.08 08:08:14" (1/3) ... [2021-08-25 20:08:14,993 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5bce0278 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 08:08:14, skipping insertion in model container [2021-08-25 20:08:14,994 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 08:08:14" (2/3) ... [2021-08-25 20:08:14,994 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5bce0278 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 08:08:14, skipping insertion in model container [2021-08-25 20:08:14,994 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 08:08:14" (3/3) ... [2021-08-25 20:08:14,995 INFO L111 eAbstractionObserver]: Analyzing ICFG integerpromotion-2.c [2021-08-25 20:08:15,000 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-25 20:08:15,001 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-08-25 20:08:15,073 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-08-25 20:08:15,082 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=true, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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 [2021-08-25 20:08:15,082 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-08-25 20:08:15,094 INFO L276 IsEmpty]: Start isEmpty. Operand has 8 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 7 states have internal predecessors, (8), 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) [2021-08-25 20:08:15,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-08-25 20:08:15,102 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 20:08:15,103 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-08-25 20:08:15,103 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 20:08:15,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 20:08:15,108 INFO L82 PathProgramCache]: Analyzing trace with hash 925607, now seen corresponding path program 1 times [2021-08-25 20:08:15,118 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-25 20:08:15,119 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1676088817] [2021-08-25 20:08:15,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 20:08:15,120 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-25 20:08:15,120 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-25 20:08:15,122 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) [2021-08-25 20:08:15,123 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-08-25 20:08:15,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 20:08:15,291 INFO L263 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 3 conjunts are in the unsatisfiable core [2021-08-25 20:08:15,293 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-25 20:08:15,416 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-25 20:08:15,417 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-25 20:08:15,471 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-25 20:08:15,472 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-25 20:08:15,473 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1676088817] [2021-08-25 20:08:15,474 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1676088817] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-25 20:08:15,475 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-25 20:08:15,475 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-08-25 20:08:15,477 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1088105175] [2021-08-25 20:08:15,481 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-25 20:08:15,481 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-25 20:08:15,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-25 20:08:15,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 20:08:15,496 INFO L87 Difference]: Start difference. First operand has 8 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 7 states have internal predecessors, (8), 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, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 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) [2021-08-25 20:08:15,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 20:08:15,510 INFO L93 Difference]: Finished difference Result 11 states and 10 transitions. [2021-08-25 20:08:15,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-25 20:08:15,512 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 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 4 [2021-08-25 20:08:15,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 20:08:15,518 INFO L225 Difference]: With dead ends: 11 [2021-08-25 20:08:15,518 INFO L226 Difference]: Without dead ends: 0 [2021-08-25 20:08:15,520 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 19.1ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 20:08:15,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-08-25 20:08:15,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-08-25 20:08:15,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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) [2021-08-25 20:08:15,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-08-25 20:08:15,539 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 4 [2021-08-25 20:08:15,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 20:08:15,540 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-08-25 20:08:15,540 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 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) [2021-08-25 20:08:15,540 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-08-25 20:08:15,540 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-08-25 20:08:15,543 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-08-25 20:08:15,555 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-08-25 20:08:15,752 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-25 20:08:15,755 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-08-25 20:08:15,758 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-25 20:08:15,812 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-25 20:08:15,839 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-08-25 20:08:15,839 INFO L857 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-08-25 20:08:15,840 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-08-25 20:08:15,840 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-08-25 20:08:15,840 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 14) no Hoare annotation was computed. [2021-08-25 20:08:15,841 INFO L853 garLoopResultBuilder]: At program point L15(lines 5 16) the Hoare annotation is: (= (bvadd (_ bv6 8) ULTIMATE.start_main_~result_8~0) (_ bv0 8)) [2021-08-25 20:08:15,841 INFO L853 garLoopResultBuilder]: At program point L10(lines 5 16) the Hoare annotation is: false [2021-08-25 20:08:15,842 INFO L857 garLoopResultBuilder]: For program point L9(lines 9 11) no Hoare annotation was computed. [2021-08-25 20:08:15,846 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-25 20:08:15,861 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.08 08:08:15 BoogieIcfgContainer [2021-08-25 20:08:15,861 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-25 20:08:15,871 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-25 20:08:15,871 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-25 20:08:15,871 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-25 20:08:15,872 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 08:08:14" (3/4) ... [2021-08-25 20:08:15,874 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-08-25 20:08:15,899 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2021-08-25 20:08:15,900 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-08-25 20:08:15,900 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-08-25 20:08:15,900 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-08-25 20:08:15,947 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-08-25 20:08:15,947 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-25 20:08:15,961 INFO L168 Benchmark]: Toolchain (without parser) took 1623.64 ms. Allocated memory is still 56.6 MB. Free memory was 41.6 MB in the beginning and 26.9 MB in the end (delta: 14.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2021-08-25 20:08:15,962 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 46.1 MB. Free memory was 28.3 MB in the beginning and 28.3 MB in the end (delta: 30.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-25 20:08:15,963 INFO L168 Benchmark]: CACSL2BoogieTranslator took 290.32 ms. Allocated memory is still 56.6 MB. Free memory was 41.3 MB in the beginning and 31.8 MB in the end (delta: 9.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-08-25 20:08:15,964 INFO L168 Benchmark]: Boogie Procedure Inliner took 33.14 ms. Allocated memory is still 56.6 MB. Free memory was 31.8 MB in the beginning and 40.5 MB in the end (delta: -8.6 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-08-25 20:08:15,965 INFO L168 Benchmark]: Boogie Preprocessor took 43.35 ms. Allocated memory is still 56.6 MB. Free memory was 40.5 MB in the beginning and 39.5 MB in the end (delta: 938.7 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-08-25 20:08:15,965 INFO L168 Benchmark]: RCFGBuilder took 290.67 ms. Allocated memory is still 56.6 MB. Free memory was 39.5 MB in the beginning and 29.0 MB in the end (delta: 10.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-08-25 20:08:15,966 INFO L168 Benchmark]: TraceAbstraction took 872.48 ms. Allocated memory is still 56.6 MB. Free memory was 28.4 MB in the beginning and 29.0 MB in the end (delta: -549.0 kB). Peak memory consumption was 1.4 MB. Max. memory is 16.1 GB. [2021-08-25 20:08:15,966 INFO L168 Benchmark]: Witness Printer took 76.97 ms. Allocated memory is still 56.6 MB. Free memory was 29.0 MB in the beginning and 26.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-08-25 20:08:15,972 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 46.1 MB. Free memory was 28.3 MB in the beginning and 28.3 MB in the end (delta: 30.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 290.32 ms. Allocated memory is still 56.6 MB. Free memory was 41.3 MB in the beginning and 31.8 MB in the end (delta: 9.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 33.14 ms. Allocated memory is still 56.6 MB. Free memory was 31.8 MB in the beginning and 40.5 MB in the end (delta: -8.6 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 43.35 ms. Allocated memory is still 56.6 MB. Free memory was 40.5 MB in the beginning and 39.5 MB in the end (delta: 938.7 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 290.67 ms. Allocated memory is still 56.6 MB. Free memory was 39.5 MB in the beginning and 29.0 MB in the end (delta: 10.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 872.48 ms. Allocated memory is still 56.6 MB. Free memory was 28.4 MB in the beginning and 29.0 MB in the end (delta: -549.0 kB). Peak memory consumption was 1.4 MB. Max. memory is 16.1 GB. * Witness Printer took 76.97 ms. Allocated memory is still 56.6 MB. Free memory was 29.0 MB in the beginning and 26.9 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 - PositiveResult [Line: 14]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 8 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 774.8ms, OverallIterations: 1, TraceHistogramMax: 1, EmptinessCheckTime: 11.8ms, AutomataDifference: 38.5ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 85.0ms, InitialAbstractionConstructionTime: 8.2ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 4 SDtfs, 3 SDslu, 1 SDs, 0 SdLazy, 1 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3.0ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 19.1ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=8occurred in iteration=0, InterpolantAutomatonStates: 3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 7.8ms AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 3 NumberOfFragments, 6 HoareAnnotationTreeSize, 2 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 57.2ms HoareSimplificationTime, 2 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 22.2ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 80.7ms SsaConstructionTime, 25.2ms SatisfiabilityAnalysisTime, 182.7ms InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 6 ConstructedInterpolants, 0 QuantifiedInterpolants, 14 SizeOfPredicates, 2 NumberOfNonLiveVariables, 25 ConjunctsInSsa, 3 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 5]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 5]: Loop Invariant Derived loop invariant: ~bvadd64(6bv8, result_8) == 0bv8 RESULT: Ultimate proved your program to be correct! [2021-08-25 20:08:16,054 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...