./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/bitvector-regression/integerpromotion-3.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-3.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 c45a2095b49f6777b86778952566dd983301d428 .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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-3.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 c45a2095b49f6777b86778952566dd983301d428 .......................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-20ed64e [2021-08-25 20:08:11,667 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-25 20:08:11,669 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-25 20:08:11,712 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-25 20:08:11,712 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-25 20:08:11,715 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-25 20:08:11,716 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-25 20:08:11,717 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-25 20:08:11,718 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-25 20:08:11,719 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-25 20:08:11,719 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-25 20:08:11,740 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-25 20:08:11,740 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-25 20:08:11,741 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-25 20:08:11,742 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-25 20:08:11,743 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-25 20:08:11,743 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-25 20:08:11,744 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-25 20:08:11,745 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-25 20:08:11,747 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-25 20:08:11,748 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-25 20:08:11,765 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-25 20:08:11,768 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-25 20:08:11,769 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-25 20:08:11,782 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-25 20:08:11,785 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-25 20:08:11,785 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-25 20:08:11,786 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-25 20:08:11,788 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-25 20:08:11,789 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-25 20:08:11,790 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-25 20:08:11,790 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-25 20:08:11,791 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-25 20:08:11,792 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-25 20:08:11,792 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-25 20:08:11,793 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-25 20:08:11,793 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-25 20:08:11,794 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-25 20:08:11,794 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-25 20:08:11,795 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-25 20:08:11,795 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-25 20:08:11,798 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-08-25 20:08:11,847 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-25 20:08:11,847 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-25 20:08:11,848 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-25 20:08:11,848 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-25 20:08:11,850 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-25 20:08:11,850 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-25 20:08:11,850 INFO L138 SettingsManager]: * Use SBE=true [2021-08-25 20:08:11,850 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-25 20:08:11,850 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-25 20:08:11,851 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-25 20:08:11,851 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-25 20:08:11,852 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-25 20:08:11,852 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-25 20:08:11,852 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-25 20:08:11,852 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-25 20:08:11,852 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-25 20:08:11,852 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-25 20:08:11,852 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-25 20:08:11,853 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-25 20:08:11,853 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-25 20:08:11,853 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-25 20:08:11,853 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-25 20:08:11,853 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-25 20:08:11,853 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-25 20:08:11,854 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-25 20:08:11,854 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-25 20:08:11,854 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-25 20:08:11,854 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-25 20:08:11,854 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-25 20:08:11,854 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-25 20:08:11,854 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c45a2095b49f6777b86778952566dd983301d428 [2021-08-25 20:08:12,287 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-25 20:08:12,309 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-25 20:08:12,311 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-25 20:08:12,312 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-25 20:08:12,313 INFO L275 PluginConnector]: CDTParser initialized [2021-08-25 20:08:12,313 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/bitvector-regression/integerpromotion-3.c [2021-08-25 20:08:12,360 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fc2454af2/242abecb9d214c32aafae9d9cf694753/FLAG09f77a1e8 [2021-08-25 20:08:12,881 INFO L306 CDTParser]: Found 1 translation units. [2021-08-25 20:08:12,882 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/bitvector-regression/integerpromotion-3.c [2021-08-25 20:08:12,886 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fc2454af2/242abecb9d214c32aafae9d9cf694753/FLAG09f77a1e8 [2021-08-25 20:08:13,288 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fc2454af2/242abecb9d214c32aafae9d9cf694753 [2021-08-25 20:08:13,298 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-25 20:08:13,299 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-25 20:08:13,304 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-25 20:08:13,305 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-25 20:08:13,307 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-25 20:08:13,314 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 08:08:13" (1/1) ... [2021-08-25 20:08:13,315 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@64e536cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 08:08:13, skipping insertion in model container [2021-08-25 20:08:13,315 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 08:08:13" (1/1) ... [2021-08-25 20:08:13,333 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-25 20:08:13,351 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-25 20:08:13,512 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-3.c[423,436] [2021-08-25 20:08:13,535 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-25 20:08:13,544 INFO L203 MainTranslator]: Completed pre-run [2021-08-25 20:08:13,555 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-3.c[423,436] [2021-08-25 20:08:13,557 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-25 20:08:13,568 INFO L208 MainTranslator]: Completed translation [2021-08-25 20:08:13,569 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 08:08:13 WrapperNode [2021-08-25 20:08:13,570 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-25 20:08:13,571 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-25 20:08:13,571 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-25 20:08:13,572 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-25 20:08:13,577 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 08:08:13" (1/1) ... [2021-08-25 20:08:13,583 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 08:08:13" (1/1) ... [2021-08-25 20:08:13,594 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-25 20:08:13,595 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-25 20:08:13,595 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-25 20:08:13,596 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-25 20:08:13,601 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 08:08:13" (1/1) ... [2021-08-25 20:08:13,601 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 08:08:13" (1/1) ... [2021-08-25 20:08:13,602 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 08:08:13" (1/1) ... [2021-08-25 20:08:13,603 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 08:08:13" (1/1) ... [2021-08-25 20:08:13,607 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 08:08:13" (1/1) ... [2021-08-25 20:08:13,609 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 08:08:13" (1/1) ... [2021-08-25 20:08:13,610 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 08:08:13" (1/1) ... [2021-08-25 20:08:13,614 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-25 20:08:13,615 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-25 20:08:13,616 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-25 20:08:13,616 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-25 20:08:13,616 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 08:08:13" (1/1) ... [2021-08-25 20:08:13,625 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-25 20:08:13,638 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-25 20:08:13,702 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 20:08:13,729 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 20:08:13,765 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-25 20:08:13,765 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-25 20:08:13,765 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-08-25 20:08:13,765 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-25 20:08:13,923 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-25 20:08:13,923 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-08-25 20:08:13,924 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 08:08:13 BoogieIcfgContainer [2021-08-25 20:08:13,924 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-25 20:08:13,925 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-25 20:08:13,925 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-25 20:08:13,927 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-25 20:08:13,927 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.08 08:08:13" (1/3) ... [2021-08-25 20:08:13,928 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39f42eff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 08:08:13, skipping insertion in model container [2021-08-25 20:08:13,928 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 08:08:13" (2/3) ... [2021-08-25 20:08:13,928 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39f42eff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 08:08:13, skipping insertion in model container [2021-08-25 20:08:13,928 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 08:08:13" (3/3) ... [2021-08-25 20:08:13,929 INFO L111 eAbstractionObserver]: Analyzing ICFG integerpromotion-3.c [2021-08-25 20:08:13,933 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-25 20:08:13,933 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-08-25 20:08:13,962 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-08-25 20:08:13,966 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 20:08:13,966 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-08-25 20:08:13,975 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 20:08:13,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-08-25 20:08:13,978 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 20:08:13,978 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-08-25 20:08:13,979 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 20:08:13,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 20:08:13,982 INFO L82 PathProgramCache]: Analyzing trace with hash 925607, now seen corresponding path program 1 times [2021-08-25 20:08:13,988 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 20:08:13,988 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1244424310] [2021-08-25 20:08:13,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 20:08:13,989 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 20:08:14,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-25 20:08:14,072 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-25 20:08:14,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-25 20:08:14,123 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-25 20:08:14,125 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-08-25 20:08:14,126 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-08-25 20:08:14,128 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-08-25 20:08:14,131 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-25 20:08:14,145 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.08 08:08:14 BoogieIcfgContainer [2021-08-25 20:08:14,145 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-25 20:08:14,147 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-25 20:08:14,147 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-25 20:08:14,148 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-25 20:08:14,148 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 08:08:13" (3/4) ... [2021-08-25 20:08:14,159 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-08-25 20:08:14,159 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-25 20:08:14,163 INFO L168 Benchmark]: Toolchain (without parser) took 860.43 ms. Allocated memory was 48.2 MB in the beginning and 60.8 MB in the end (delta: 12.6 MB). Free memory was 24.4 MB in the beginning and 44.6 MB in the end (delta: -20.1 MB). Peak memory consumption was 13.6 MB. Max. memory is 16.1 GB. [2021-08-25 20:08:14,163 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 48.2 MB. Free memory was 30.8 MB in the beginning and 30.8 MB in the end (delta: 40.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-25 20:08:14,164 INFO L168 Benchmark]: CACSL2BoogieTranslator took 270.10 ms. Allocated memory was 48.2 MB in the beginning and 60.8 MB in the end (delta: 12.6 MB). Free memory was 24.2 MB in the beginning and 38.8 MB in the end (delta: -14.6 MB). Peak memory consumption was 5.5 MB. Max. memory is 16.1 GB. [2021-08-25 20:08:14,165 INFO L168 Benchmark]: Boogie Procedure Inliner took 23.09 ms. Allocated memory is still 60.8 MB. Free memory was 38.8 MB in the beginning and 37.4 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-08-25 20:08:14,166 INFO L168 Benchmark]: Boogie Preprocessor took 19.16 ms. Allocated memory is still 60.8 MB. Free memory was 37.4 MB in the beginning and 36.6 MB in the end (delta: 876.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-25 20:08:14,167 INFO L168 Benchmark]: RCFGBuilder took 309.12 ms. Allocated memory is still 60.8 MB. Free memory was 36.4 MB in the beginning and 41.5 MB in the end (delta: -5.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-08-25 20:08:14,170 INFO L168 Benchmark]: TraceAbstraction took 220.14 ms. Allocated memory is still 60.8 MB. Free memory was 41.0 MB in the beginning and 28.4 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-08-25 20:08:14,171 INFO L168 Benchmark]: Witness Printer took 11.55 ms. Allocated memory is still 60.8 MB. Free memory was 28.4 MB in the beginning and 44.6 MB in the end (delta: -16.1 MB). Peak memory consumption was 4.5 MB. Max. memory is 16.1 GB. [2021-08-25 20:08:14,176 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 48.2 MB. Free memory was 30.8 MB in the beginning and 30.8 MB in the end (delta: 40.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 270.10 ms. Allocated memory was 48.2 MB in the beginning and 60.8 MB in the end (delta: 12.6 MB). Free memory was 24.2 MB in the beginning and 38.8 MB in the end (delta: -14.6 MB). Peak memory consumption was 5.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 23.09 ms. Allocated memory is still 60.8 MB. Free memory was 38.8 MB in the beginning and 37.4 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 19.16 ms. Allocated memory is still 60.8 MB. Free memory was 37.4 MB in the beginning and 36.6 MB in the end (delta: 876.8 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 309.12 ms. Allocated memory is still 60.8 MB. Free memory was 36.4 MB in the beginning and 41.5 MB in the end (delta: -5.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 220.14 ms. Allocated memory is still 60.8 MB. Free memory was 41.0 MB in the beginning and 28.4 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Witness Printer took 11.55 ms. Allocated memory is still 60.8 MB. Free memory was 28.4 MB in the beginning and 44.6 MB in the end (delta: -16.1 MB). Peak memory consumption was 4.5 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 - 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: 170.1ms, OverallIterations: 1, TraceHistogramMax: 1, EmptinessCheckTime: 5.2ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 6.3ms, 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: 13.7ms SsaConstructionTime, 32.4ms 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 20:08:14,207 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 20:08:16,714 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-25 20:08:16,715 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-25 20:08:16,744 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-25 20:08:16,745 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-25 20:08:16,746 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-25 20:08:16,747 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-25 20:08:16,748 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-25 20:08:16,749 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-25 20:08:16,749 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-25 20:08:16,750 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-25 20:08:16,751 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-25 20:08:16,751 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-25 20:08:16,751 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-25 20:08:16,752 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-25 20:08:16,753 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-25 20:08:16,754 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-25 20:08:16,754 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-25 20:08:16,755 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-25 20:08:16,756 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-25 20:08:16,757 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-25 20:08:16,762 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-25 20:08:16,764 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-25 20:08:16,765 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-25 20:08:16,773 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-25 20:08:16,773 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-25 20:08:16,773 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-25 20:08:16,774 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-25 20:08:16,774 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-25 20:08:16,775 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-25 20:08:16,775 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-25 20:08:16,775 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-25 20:08:16,776 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-25 20:08:16,776 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-25 20:08:16,777 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-25 20:08:16,777 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-25 20:08:16,777 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-25 20:08:16,778 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-25 20:08:16,778 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-25 20:08:16,778 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-25 20:08:16,779 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-25 20:08:16,785 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-08-25 20:08:16,805 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-25 20:08:16,805 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-25 20:08:16,806 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-25 20:08:16,806 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-25 20:08:16,806 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-25 20:08:16,806 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-25 20:08:16,807 INFO L138 SettingsManager]: * Use SBE=true [2021-08-25 20:08:16,807 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-25 20:08:16,807 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-25 20:08:16,807 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-25 20:08:16,807 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-25 20:08:16,807 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-25 20:08:16,807 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-25 20:08:16,807 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-25 20:08:16,807 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-08-25 20:08:16,807 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-08-25 20:08:16,807 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-25 20:08:16,808 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-25 20:08:16,808 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-25 20:08:16,808 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-25 20:08:16,813 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-25 20:08:16,813 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-25 20:08:16,813 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-25 20:08:16,813 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-25 20:08:16,814 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-25 20:08:16,814 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-25 20:08:16,814 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-25 20:08:16,814 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-08-25 20:08:16,814 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-08-25 20:08:16,814 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-25 20:08:16,814 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-25 20:08:16,814 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-08-25 20:08:16,814 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c45a2095b49f6777b86778952566dd983301d428 [2021-08-25 20:08:17,103 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-25 20:08:17,144 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-25 20:08:17,146 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-25 20:08:17,147 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-25 20:08:17,147 INFO L275 PluginConnector]: CDTParser initialized [2021-08-25 20:08:17,148 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/bitvector-regression/integerpromotion-3.c [2021-08-25 20:08:17,232 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/163ccda66/05c4596a33f745de8af52c7d0f07a985/FLAG9c5cd81da [2021-08-25 20:08:17,681 INFO L306 CDTParser]: Found 1 translation units. [2021-08-25 20:08:17,682 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/bitvector-regression/integerpromotion-3.c [2021-08-25 20:08:17,689 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/163ccda66/05c4596a33f745de8af52c7d0f07a985/FLAG9c5cd81da [2021-08-25 20:08:17,707 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/163ccda66/05c4596a33f745de8af52c7d0f07a985 [2021-08-25 20:08:17,715 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-25 20:08:17,718 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-25 20:08:17,733 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-25 20:08:17,733 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-25 20:08:17,736 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-25 20:08:17,736 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 08:08:17" (1/1) ... [2021-08-25 20:08:17,737 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@d3bf397 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 08:08:17, skipping insertion in model container [2021-08-25 20:08:17,737 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 08:08:17" (1/1) ... [2021-08-25 20:08:17,751 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-25 20:08:17,759 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-25 20:08:17,922 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-3.c[423,436] [2021-08-25 20:08:17,930 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-25 20:08:17,947 INFO L203 MainTranslator]: Completed pre-run [2021-08-25 20:08:17,971 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-3.c[423,436] [2021-08-25 20:08:17,972 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-25 20:08:18,009 INFO L208 MainTranslator]: Completed translation [2021-08-25 20:08:18,010 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 08:08:18 WrapperNode [2021-08-25 20:08:18,010 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-25 20:08:18,011 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-25 20:08:18,011 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-25 20:08:18,011 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-25 20:08:18,032 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 08:08:18" (1/1) ... [2021-08-25 20:08:18,059 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 08:08:18" (1/1) ... [2021-08-25 20:08:18,070 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-25 20:08:18,072 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-25 20:08:18,073 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-25 20:08:18,073 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-25 20:08:18,078 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 08:08:18" (1/1) ... [2021-08-25 20:08:18,089 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 08:08:18" (1/1) ... [2021-08-25 20:08:18,092 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 08:08:18" (1/1) ... [2021-08-25 20:08:18,092 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 08:08:18" (1/1) ... [2021-08-25 20:08:18,097 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 08:08:18" (1/1) ... [2021-08-25 20:08:18,099 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 08:08:18" (1/1) ... [2021-08-25 20:08:18,102 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 08:08:18" (1/1) ... [2021-08-25 20:08:18,103 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-25 20:08:18,117 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-25 20:08:18,118 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-25 20:08:18,118 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-25 20:08:18,118 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 08:08:18" (1/1) ... [2021-08-25 20:08:18,124 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-25 20:08:18,128 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-25 20:08:18,162 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 20:08:18,190 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 20:08:18,237 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-25 20:08:18,237 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-25 20:08:18,237 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-08-25 20:08:18,238 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-25 20:08:18,482 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-25 20:08:18,489 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-08-25 20:08:18,490 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 08:08:18 BoogieIcfgContainer [2021-08-25 20:08:18,490 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-25 20:08:18,491 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-25 20:08:18,491 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-25 20:08:18,497 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-25 20:08:18,497 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.08 08:08:17" (1/3) ... [2021-08-25 20:08:18,498 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48ea64ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 08:08:18, skipping insertion in model container [2021-08-25 20:08:18,498 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 08:08:18" (2/3) ... [2021-08-25 20:08:18,498 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48ea64ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 08:08:18, skipping insertion in model container [2021-08-25 20:08:18,498 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 08:08:18" (3/3) ... [2021-08-25 20:08:18,499 INFO L111 eAbstractionObserver]: Analyzing ICFG integerpromotion-3.c [2021-08-25 20:08:18,508 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-25 20:08:18,509 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-08-25 20:08:18,567 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-08-25 20:08:18,588 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 20:08:18,590 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-08-25 20:08:18,610 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 20:08:18,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-08-25 20:08:18,616 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 20:08:18,616 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-08-25 20:08:18,617 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 20:08:18,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 20:08:18,625 INFO L82 PathProgramCache]: Analyzing trace with hash 925607, now seen corresponding path program 1 times [2021-08-25 20:08:18,631 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-25 20:08:18,632 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1195995727] [2021-08-25 20:08:18,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 20:08:18,633 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-25 20:08:18,633 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-25 20:08:18,635 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 20:08:18,636 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 20:08:18,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-25 20:08:18,705 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-25 20:08:18,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-25 20:08:18,797 INFO L133 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2021-08-25 20:08:18,799 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-08-25 20:08:18,810 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-08-25 20:08:18,843 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 20:08:19,020 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 20:08:19,034 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-25 20:08:19,077 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.08 08:08:19 BoogieIcfgContainer [2021-08-25 20:08:19,077 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-25 20:08:19,078 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-25 20:08:19,078 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-25 20:08:19,078 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-25 20:08:19,079 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 08:08:18" (3/4) ... [2021-08-25 20:08:19,085 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-08-25 20:08:19,118 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-08-25 20:08:19,118 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-25 20:08:19,122 INFO L168 Benchmark]: Toolchain (without parser) took 1401.33 ms. Allocated memory was 46.1 MB in the beginning and 56.6 MB in the end (delta: 10.5 MB). Free memory was 31.5 MB in the beginning and 24.7 MB in the end (delta: 6.8 MB). Peak memory consumption was 16.2 MB. Max. memory is 16.1 GB. [2021-08-25 20:08:19,123 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 46.1 MB. Free memory is still 28.4 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-08-25 20:08:19,124 INFO L168 Benchmark]: CACSL2BoogieTranslator took 277.44 ms. Allocated memory was 46.1 MB in the beginning and 56.6 MB in the end (delta: 10.5 MB). Free memory was 31.2 MB in the beginning and 40.5 MB in the end (delta: -9.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-08-25 20:08:19,124 INFO L168 Benchmark]: Boogie Procedure Inliner took 59.76 ms. Allocated memory is still 56.6 MB. Free memory was 40.3 MB in the beginning and 38.9 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-25 20:08:19,125 INFO L168 Benchmark]: Boogie Preprocessor took 31.49 ms. Allocated memory is still 56.6 MB. Free memory was 38.9 MB in the beginning and 38.1 MB in the end (delta: 836.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-25 20:08:19,126 INFO L168 Benchmark]: RCFGBuilder took 372.99 ms. Allocated memory is still 56.6 MB. Free memory was 37.9 MB in the beginning and 27.3 MB in the end (delta: 10.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-08-25 20:08:19,127 INFO L168 Benchmark]: TraceAbstraction took 586.38 ms. Allocated memory is still 56.6 MB. Free memory was 26.9 MB in the beginning and 26.4 MB in the end (delta: 508.0 kB). Peak memory consumption was 3.1 MB. Max. memory is 16.1 GB. [2021-08-25 20:08:19,127 INFO L168 Benchmark]: Witness Printer took 40.22 ms. Allocated memory is still 56.6 MB. Free memory was 26.4 MB in the beginning and 24.7 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-08-25 20:08:19,130 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 46.1 MB. Free memory is still 28.4 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 277.44 ms. Allocated memory was 46.1 MB in the beginning and 56.6 MB in the end (delta: 10.5 MB). Free memory was 31.2 MB in the beginning and 40.5 MB in the end (delta: -9.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 59.76 ms. Allocated memory is still 56.6 MB. Free memory was 40.3 MB in the beginning and 38.9 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 31.49 ms. Allocated memory is still 56.6 MB. Free memory was 38.9 MB in the beginning and 38.1 MB in the end (delta: 836.8 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 372.99 ms. Allocated memory is still 56.6 MB. Free memory was 37.9 MB in the beginning and 27.3 MB in the end (delta: 10.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 586.38 ms. Allocated memory is still 56.6 MB. Free memory was 26.9 MB in the beginning and 26.4 MB in the end (delta: 508.0 kB). Peak memory consumption was 3.1 MB. Max. memory is 16.1 GB. * Witness Printer took 40.22 ms. Allocated memory is still 56.6 MB. Free memory was 26.4 MB in the beginning and 24.7 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 14]: a call to reach_error is reachable a call to reach_error is reachable We found a 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: 457.9ms, OverallIterations: 1, TraceHistogramMax: 1, EmptinessCheckTime: 20.3ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 5.6ms, 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: 6.7ms SsaConstructionTime, 21.9ms 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 proved your program to be incorrect! [2021-08-25 20:08:19,171 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...