./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 7b2dab56 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_f0731c75-d87a-4f4b-a6b8-db4879749c87/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_f0731c75-d87a-4f4b-a6b8-db4879749c87/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_f0731c75-d87a-4f4b-a6b8-db4879749c87/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_f0731c75-d87a-4f4b-a6b8-db4879749c87/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/bitvector-regression/integerpromotion-3.c -s /tmp/vcloud-vcloud-master/worker/run_dir_f0731c75-d87a-4f4b-a6b8-db4879749c87/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_f0731c75-d87a-4f4b-a6b8-db4879749c87/bin/utaipan --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 Taipan --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=/tmp/vcloud-vcloud-master/worker/run_dir_f0731c75-d87a-4f4b-a6b8-db4879749c87/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_f0731c75-d87a-4f4b-a6b8-db4879749c87/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_f0731c75-d87a-4f4b-a6b8-db4879749c87/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_f0731c75-d87a-4f4b-a6b8-db4879749c87/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/bitvector-regression/integerpromotion-3.c -s /tmp/vcloud-vcloud-master/worker/run_dir_f0731c75-d87a-4f4b-a6b8-db4879749c87/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_f0731c75-d87a-4f4b-a6b8-db4879749c87/bin/utaipan --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 Taipan --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 0.2.0-7b2dab5 [2020-12-09 17:37:54,076 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-09 17:37:54,078 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-09 17:37:54,107 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-09 17:37:54,108 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-09 17:37:54,109 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-09 17:37:54,111 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-09 17:37:54,113 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-09 17:37:54,115 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-09 17:37:54,117 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-09 17:37:54,118 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-09 17:37:54,119 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-09 17:37:54,120 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-09 17:37:54,121 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-09 17:37:54,122 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-09 17:37:54,123 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-09 17:37:54,124 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-09 17:37:54,125 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-09 17:37:54,127 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-09 17:37:54,130 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-09 17:37:54,131 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-09 17:37:54,133 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-09 17:37:54,134 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-09 17:37:54,135 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-09 17:37:54,138 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-09 17:37:54,139 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-09 17:37:54,139 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-09 17:37:54,140 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-09 17:37:54,140 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-09 17:37:54,142 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-09 17:37:54,142 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-09 17:37:54,143 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-09 17:37:54,144 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-09 17:37:54,144 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-09 17:37:54,145 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-09 17:37:54,146 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-09 17:37:54,146 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-09 17:37:54,146 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-09 17:37:54,147 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-09 17:37:54,147 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-09 17:37:54,148 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-09 17:37:54,149 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_f0731c75-d87a-4f4b-a6b8-db4879749c87/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2020-12-09 17:37:54,171 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-09 17:37:54,171 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-09 17:37:54,172 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-09 17:37:54,172 INFO L138 SettingsManager]: * User list type=DISABLED [2020-12-09 17:37:54,172 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-12-09 17:37:54,172 INFO L138 SettingsManager]: * Explicit value domain=true [2020-12-09 17:37:54,172 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-12-09 17:37:54,173 INFO L138 SettingsManager]: * Octagon Domain=false [2020-12-09 17:37:54,173 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-12-09 17:37:54,173 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-12-09 17:37:54,173 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-12-09 17:37:54,173 INFO L138 SettingsManager]: * Interval Domain=false [2020-12-09 17:37:54,174 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-12-09 17:37:54,174 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-12-09 17:37:54,174 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-12-09 17:37:54,175 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-09 17:37:54,175 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-09 17:37:54,175 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-09 17:37:54,175 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-09 17:37:54,175 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-09 17:37:54,175 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-09 17:37:54,176 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-09 17:37:54,176 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-09 17:37:54,176 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-12-09 17:37:54,176 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-09 17:37:54,176 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-09 17:37:54,176 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-09 17:37:54,177 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-09 17:37:54,177 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-09 17:37:54,177 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-09 17:37:54,177 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-09 17:37:54,177 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-09 17:37:54,178 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-09 17:37:54,178 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-09 17:37:54,178 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-12-09 17:37:54,178 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-09 17:37:54,178 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-09 17:37:54,178 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-09 17:37:54,179 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-09 17:37:54,179 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_f0731c75-d87a-4f4b-a6b8-db4879749c87/bin/utaipan/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_f0731c75-d87a-4f4b-a6b8-db4879749c87/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c45a2095b49f6777b86778952566dd983301d428 [2020-12-09 17:37:54,365 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-09 17:37:54,380 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-09 17:37:54,382 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-09 17:37:54,383 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-09 17:37:54,383 INFO L275 PluginConnector]: CDTParser initialized [2020-12-09 17:37:54,384 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_f0731c75-d87a-4f4b-a6b8-db4879749c87/bin/utaipan/../../sv-benchmarks/c/bitvector-regression/integerpromotion-3.c [2020-12-09 17:37:54,425 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_f0731c75-d87a-4f4b-a6b8-db4879749c87/bin/utaipan/data/968ca9a4f/df014c271a774c21aca2acfee1f6ebd7/FLAG01844b0ab [2020-12-09 17:37:54,779 INFO L306 CDTParser]: Found 1 translation units. [2020-12-09 17:37:54,780 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_f0731c75-d87a-4f4b-a6b8-db4879749c87/sv-benchmarks/c/bitvector-regression/integerpromotion-3.c [2020-12-09 17:37:54,784 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_f0731c75-d87a-4f4b-a6b8-db4879749c87/bin/utaipan/data/968ca9a4f/df014c271a774c21aca2acfee1f6ebd7/FLAG01844b0ab [2020-12-09 17:37:54,793 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_f0731c75-d87a-4f4b-a6b8-db4879749c87/bin/utaipan/data/968ca9a4f/df014c271a774c21aca2acfee1f6ebd7 [2020-12-09 17:37:54,795 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-09 17:37:54,796 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-09 17:37:54,797 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-09 17:37:54,798 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-09 17:37:54,800 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-09 17:37:54,801 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 05:37:54" (1/1) ... [2020-12-09 17:37:54,802 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6df61a3a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:37:54, skipping insertion in model container [2020-12-09 17:37:54,802 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 05:37:54" (1/1) ... [2020-12-09 17:37:54,808 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-09 17:37:54,816 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-09 17:37:54,919 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_f0731c75-d87a-4f4b-a6b8-db4879749c87/sv-benchmarks/c/bitvector-regression/integerpromotion-3.c[423,436] [2020-12-09 17:37:54,923 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 17:37:54,930 INFO L203 MainTranslator]: Completed pre-run [2020-12-09 17:37:54,941 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_f0731c75-d87a-4f4b-a6b8-db4879749c87/sv-benchmarks/c/bitvector-regression/integerpromotion-3.c[423,436] [2020-12-09 17:37:54,941 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 17:37:54,951 INFO L208 MainTranslator]: Completed translation [2020-12-09 17:37:54,952 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:37:54 WrapperNode [2020-12-09 17:37:54,952 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-09 17:37:54,952 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-09 17:37:54,952 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-09 17:37:54,953 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-09 17:37:54,958 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:37:54" (1/1) ... [2020-12-09 17:37:54,963 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:37:54" (1/1) ... [2020-12-09 17:37:54,974 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-09 17:37:54,974 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-09 17:37:54,975 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-09 17:37:54,975 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-09 17:37:54,980 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:37:54" (1/1) ... [2020-12-09 17:37:54,981 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:37:54" (1/1) ... [2020-12-09 17:37:54,981 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:37:54" (1/1) ... [2020-12-09 17:37:54,982 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:37:54" (1/1) ... [2020-12-09 17:37:54,985 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:37:54" (1/1) ... [2020-12-09 17:37:54,986 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:37:54" (1/1) ... [2020-12-09 17:37:54,987 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:37:54" (1/1) ... [2020-12-09 17:37:54,988 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-09 17:37:54,989 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-09 17:37:54,989 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-09 17:37:54,990 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-09 17:37:54,991 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:37:54" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f0731c75-d87a-4f4b-a6b8-db4879749c87/bin/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-09 17:37:55,071 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-09 17:37:55,071 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-09 17:37:55,071 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-09 17:37:55,071 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-09 17:37:55,207 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-09 17:37:55,207 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2020-12-09 17:37:55,209 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 05:37:55 BoogieIcfgContainer [2020-12-09 17:37:55,209 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-09 17:37:55,211 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-09 17:37:55,211 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-09 17:37:55,213 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-09 17:37:55,214 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 05:37:54" (1/3) ... [2020-12-09 17:37:55,214 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a682b99 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 05:37:55, skipping insertion in model container [2020-12-09 17:37:55,214 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:37:54" (2/3) ... [2020-12-09 17:37:55,214 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a682b99 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 05:37:55, skipping insertion in model container [2020-12-09 17:37:55,215 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 05:37:55" (3/3) ... [2020-12-09 17:37:55,216 INFO L111 eAbstractionObserver]: Analyzing ICFG integerpromotion-3.c [2020-12-09 17:37:55,225 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-09 17:37:55,227 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-09 17:37:55,235 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-09 17:37:55,251 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-09 17:37:55,251 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-09 17:37:55,251 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-09 17:37:55,251 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-09 17:37:55,251 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-09 17:37:55,251 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-09 17:37:55,251 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-09 17:37:55,252 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-09 17:37:55,260 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states. [2020-12-09 17:37:55,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2020-12-09 17:37:55,263 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 17:37:55,263 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1] [2020-12-09 17:37:55,264 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 17:37:55,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 17:37:55,267 INFO L82 PathProgramCache]: Analyzing trace with hash 43409, now seen corresponding path program 1 times [2020-12-09 17:37:55,274 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 17:37:55,274 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1312921436] [2020-12-09 17:37:55,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 17:37:55,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-09 17:37:55,348 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-09 17:37:55,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-09 17:37:55,364 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-09 17:37:55,378 INFO L173 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2020-12-09 17:37:55,378 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-12-09 17:37:55,378 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-09 17:37:55,391 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 05:37:55 BoogieIcfgContainer [2020-12-09 17:37:55,391 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-09 17:37:55,392 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-09 17:37:55,392 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-09 17:37:55,393 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-09 17:37:55,393 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 05:37:55" (3/4) ... [2020-12-09 17:37:55,396 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-12-09 17:37:55,397 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-09 17:37:55,399 INFO L168 Benchmark]: Toolchain (without parser) took 600.92 ms. Allocated memory is still 90.2 MB. Free memory was 61.6 MB in the beginning and 47.3 MB in the end (delta: 14.3 MB). Peak memory consumption was 14.2 MB. Max. memory is 16.1 GB. [2020-12-09 17:37:55,400 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 90.2 MB. Free memory was 68.0 MB in the beginning and 67.9 MB in the end (delta: 77.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 17:37:55,401 INFO L168 Benchmark]: CACSL2BoogieTranslator took 154.41 ms. Allocated memory is still 90.2 MB. Free memory was 61.4 MB in the beginning and 52.2 MB in the end (delta: 9.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-12-09 17:37:55,402 INFO L168 Benchmark]: Boogie Procedure Inliner took 21.43 ms. Allocated memory is still 90.2 MB. Free memory was 52.2 MB in the beginning and 50.9 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-09 17:37:55,403 INFO L168 Benchmark]: Boogie Preprocessor took 14.03 ms. Allocated memory is still 90.2 MB. Free memory was 50.9 MB in the beginning and 49.9 MB in the end (delta: 919.7 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 17:37:55,404 INFO L168 Benchmark]: RCFGBuilder took 220.12 ms. Allocated memory is still 90.2 MB. Free memory was 49.9 MB in the beginning and 59.7 MB in the end (delta: -9.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-12-09 17:37:55,405 INFO L168 Benchmark]: TraceAbstraction took 180.58 ms. Allocated memory is still 90.2 MB. Free memory was 59.4 MB in the beginning and 47.7 MB in the end (delta: 11.7 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-12-09 17:37:55,405 INFO L168 Benchmark]: Witness Printer took 4.33 ms. Allocated memory is still 90.2 MB. Free memory was 47.7 MB in the beginning and 47.3 MB in the end (delta: 311.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 17:37:55,410 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 90.2 MB. Free memory was 68.0 MB in the beginning and 67.9 MB in the end (delta: 77.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 154.41 ms. Allocated memory is still 90.2 MB. Free memory was 61.4 MB in the beginning and 52.2 MB in the end (delta: 9.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 21.43 ms. Allocated memory is still 90.2 MB. Free memory was 52.2 MB in the beginning and 50.9 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 14.03 ms. Allocated memory is still 90.2 MB. Free memory was 50.9 MB in the beginning and 49.9 MB in the end (delta: 919.7 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 220.12 ms. Allocated memory is still 90.2 MB. Free memory was 49.9 MB in the beginning and 59.7 MB in the end (delta: -9.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * TraceAbstraction took 180.58 ms. Allocated memory is still 90.2 MB. Free memory was 59.4 MB in the beginning and 47.7 MB in the end (delta: 11.7 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Witness Printer took 4.33 ms. Allocated memory is still 90.2 MB. Free memory was 47.7 MB in the beginning and 47.3 MB in the end (delta: 311.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - 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, 6 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.1s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=6occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 3 NumberOfCodeBlocks, 3 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 Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.0-7b2dab5 [2020-12-09 17:37:56,966 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-09 17:37:56,967 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-09 17:37:56,996 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-09 17:37:56,996 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-09 17:37:56,997 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-09 17:37:56,999 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-09 17:37:57,002 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-09 17:37:57,004 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-09 17:37:57,005 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-09 17:37:57,006 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-09 17:37:57,019 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-09 17:37:57,019 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-09 17:37:57,020 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-09 17:37:57,022 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-09 17:37:57,023 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-09 17:37:57,024 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-09 17:37:57,025 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-09 17:37:57,027 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-09 17:37:57,029 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-09 17:37:57,030 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-09 17:37:57,031 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-09 17:37:57,032 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-09 17:37:57,033 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-09 17:37:57,036 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-09 17:37:57,037 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-09 17:37:57,037 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-09 17:37:57,038 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-09 17:37:57,039 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-09 17:37:57,040 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-09 17:37:57,040 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-09 17:37:57,041 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-09 17:37:57,042 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-09 17:37:57,042 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-09 17:37:57,043 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-09 17:37:57,044 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-09 17:37:57,044 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-09 17:37:57,044 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-09 17:37:57,044 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-09 17:37:57,045 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-09 17:37:57,046 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-09 17:37:57,046 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_f0731c75-d87a-4f4b-a6b8-db4879749c87/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2020-12-09 17:37:57,069 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-09 17:37:57,069 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-09 17:37:57,070 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-09 17:37:57,070 INFO L138 SettingsManager]: * User list type=DISABLED [2020-12-09 17:37:57,070 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-12-09 17:37:57,070 INFO L138 SettingsManager]: * Explicit value domain=true [2020-12-09 17:37:57,070 INFO L138 SettingsManager]: * Octagon Domain=false [2020-12-09 17:37:57,071 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-12-09 17:37:57,071 INFO L138 SettingsManager]: * Interval Domain=false [2020-12-09 17:37:57,071 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-09 17:37:57,072 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-09 17:37:57,072 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-09 17:37:57,072 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-09 17:37:57,072 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-09 17:37:57,072 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-09 17:37:57,073 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-09 17:37:57,073 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-12-09 17:37:57,073 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-12-09 17:37:57,073 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-12-09 17:37:57,073 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-09 17:37:57,073 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-09 17:37:57,074 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-09 17:37:57,074 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-09 17:37:57,074 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-09 17:37:57,074 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-09 17:37:57,074 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-09 17:37:57,075 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-09 17:37:57,075 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-09 17:37:57,075 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-09 17:37:57,075 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-09 17:37:57,075 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2020-12-09 17:37:57,075 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2020-12-09 17:37:57,076 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-09 17:37:57,076 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-09 17:37:57,076 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-09 17:37:57,076 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:/tmp/vcloud-vcloud-master/worker/run_dir_f0731c75-d87a-4f4b-a6b8-db4879749c87/bin/utaipan/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_f0731c75-d87a-4f4b-a6b8-db4879749c87/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c45a2095b49f6777b86778952566dd983301d428 [2020-12-09 17:37:57,316 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-09 17:37:57,330 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-09 17:37:57,332 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-09 17:37:57,333 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-09 17:37:57,334 INFO L275 PluginConnector]: CDTParser initialized [2020-12-09 17:37:57,335 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_f0731c75-d87a-4f4b-a6b8-db4879749c87/bin/utaipan/../../sv-benchmarks/c/bitvector-regression/integerpromotion-3.c [2020-12-09 17:37:57,376 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_f0731c75-d87a-4f4b-a6b8-db4879749c87/bin/utaipan/data/4caa42b32/2b7372b824b540eca9bc8d100dd329d6/FLAG428ddec61 [2020-12-09 17:37:57,767 INFO L306 CDTParser]: Found 1 translation units. [2020-12-09 17:37:57,768 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_f0731c75-d87a-4f4b-a6b8-db4879749c87/sv-benchmarks/c/bitvector-regression/integerpromotion-3.c [2020-12-09 17:37:57,772 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_f0731c75-d87a-4f4b-a6b8-db4879749c87/bin/utaipan/data/4caa42b32/2b7372b824b540eca9bc8d100dd329d6/FLAG428ddec61 [2020-12-09 17:37:57,782 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_f0731c75-d87a-4f4b-a6b8-db4879749c87/bin/utaipan/data/4caa42b32/2b7372b824b540eca9bc8d100dd329d6 [2020-12-09 17:37:57,784 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-09 17:37:57,785 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-09 17:37:57,786 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-09 17:37:57,786 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-09 17:37:57,788 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-09 17:37:57,789 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 05:37:57" (1/1) ... [2020-12-09 17:37:57,790 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2745d92d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:37:57, skipping insertion in model container [2020-12-09 17:37:57,790 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 05:37:57" (1/1) ... [2020-12-09 17:37:57,795 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-09 17:37:57,803 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-09 17:37:57,893 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_f0731c75-d87a-4f4b-a6b8-db4879749c87/sv-benchmarks/c/bitvector-regression/integerpromotion-3.c[423,436] [2020-12-09 17:37:57,896 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 17:37:57,905 INFO L203 MainTranslator]: Completed pre-run [2020-12-09 17:37:57,923 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_f0731c75-d87a-4f4b-a6b8-db4879749c87/sv-benchmarks/c/bitvector-regression/integerpromotion-3.c[423,436] [2020-12-09 17:37:57,924 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 17:37:57,942 INFO L208 MainTranslator]: Completed translation [2020-12-09 17:37:57,943 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:37:57 WrapperNode [2020-12-09 17:37:57,943 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-09 17:37:57,944 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-09 17:37:57,944 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-09 17:37:57,944 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-09 17:37:57,951 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:37:57" (1/1) ... [2020-12-09 17:37:57,959 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:37:57" (1/1) ... [2020-12-09 17:37:57,974 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-09 17:37:57,974 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-09 17:37:57,974 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-09 17:37:57,975 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-09 17:37:57,982 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:37:57" (1/1) ... [2020-12-09 17:37:57,983 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:37:57" (1/1) ... [2020-12-09 17:37:57,984 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:37:57" (1/1) ... [2020-12-09 17:37:57,985 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:37:57" (1/1) ... [2020-12-09 17:37:57,989 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:37:57" (1/1) ... [2020-12-09 17:37:57,990 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:37:57" (1/1) ... [2020-12-09 17:37:57,991 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:37:57" (1/1) ... [2020-12-09 17:37:57,993 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-09 17:37:57,994 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-09 17:37:57,994 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-09 17:37:57,994 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-09 17:37:57,995 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:37:57" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f0731c75-d87a-4f4b-a6b8-db4879749c87/bin/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-09 17:37:58,060 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-09 17:37:58,061 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-09 17:37:58,061 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-12-09 17:37:58,061 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-09 17:37:58,203 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-09 17:37:58,203 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2020-12-09 17:37:58,204 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 05:37:58 BoogieIcfgContainer [2020-12-09 17:37:58,205 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-09 17:37:58,206 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-09 17:37:58,206 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-09 17:37:58,208 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-09 17:37:58,208 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 05:37:57" (1/3) ... [2020-12-09 17:37:58,209 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6aba900a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 05:37:58, skipping insertion in model container [2020-12-09 17:37:58,209 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:37:57" (2/3) ... [2020-12-09 17:37:58,209 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6aba900a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 05:37:58, skipping insertion in model container [2020-12-09 17:37:58,209 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 05:37:58" (3/3) ... [2020-12-09 17:37:58,210 INFO L111 eAbstractionObserver]: Analyzing ICFG integerpromotion-3.c [2020-12-09 17:37:58,221 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-09 17:37:58,223 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-09 17:37:58,232 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-09 17:37:58,253 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-09 17:37:58,253 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-09 17:37:58,253 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-09 17:37:58,254 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-09 17:37:58,254 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-09 17:37:58,254 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-09 17:37:58,254 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-09 17:37:58,254 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-09 17:37:58,262 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states. [2020-12-09 17:37:58,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-12-09 17:37:58,265 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 17:37:58,266 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-12-09 17:37:58,266 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 17:37:58,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 17:37:58,270 INFO L82 PathProgramCache]: Analyzing trace with hash 925607, now seen corresponding path program 1 times [2020-12-09 17:37:58,279 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 17:37:58,280 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1974317178] [2020-12-09 17:37:58,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f0731c75-d87a-4f4b-a6b8-db4879749c87/bin/utaipan/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2020-12-09 17:37:58,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-09 17:37:58,335 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-09 17:37:58,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-09 17:37:58,354 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-09 17:37:58,380 INFO L173 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2020-12-09 17:37:58,381 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-12-09 17:37:58,582 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-12-09 17:37:58,595 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 05:37:58 BoogieIcfgContainer [2020-12-09 17:37:58,595 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-09 17:37:58,596 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-09 17:37:58,596 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-09 17:37:58,596 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-09 17:37:58,597 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 05:37:58" (3/4) ... [2020-12-09 17:37:58,599 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-12-09 17:37:58,627 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_f0731c75-d87a-4f4b-a6b8-db4879749c87/bin/utaipan/witness.graphml [2020-12-09 17:37:58,627 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-09 17:37:58,629 INFO L168 Benchmark]: Toolchain (without parser) took 843.15 ms. Allocated memory was 58.7 MB in the beginning and 71.3 MB in the end (delta: 12.6 MB). Free memory was 37.4 MB in the beginning and 42.4 MB in the end (delta: -5.0 MB). Peak memory consumption was 6.4 MB. Max. memory is 16.1 GB. [2020-12-09 17:37:58,630 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 58.7 MB. Free memory was 40.6 MB in the beginning and 40.5 MB in the end (delta: 73.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 17:37:58,631 INFO L168 Benchmark]: CACSL2BoogieTranslator took 157.51 ms. Allocated memory is still 58.7 MB. Free memory was 37.2 MB in the beginning and 41.9 MB in the end (delta: -4.7 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-12-09 17:37:58,631 INFO L168 Benchmark]: Boogie Procedure Inliner took 29.97 ms. Allocated memory is still 58.7 MB. Free memory was 41.9 MB in the beginning and 40.5 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 17:37:58,632 INFO L168 Benchmark]: Boogie Preprocessor took 18.98 ms. Allocated memory is still 58.7 MB. Free memory was 40.5 MB in the beginning and 39.7 MB in the end (delta: 851.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 17:37:58,633 INFO L168 Benchmark]: RCFGBuilder took 210.63 ms. Allocated memory is still 58.7 MB. Free memory was 39.5 MB in the beginning and 29.4 MB in the end (delta: 10.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-12-09 17:37:58,633 INFO L168 Benchmark]: TraceAbstraction took 389.56 ms. Allocated memory was 58.7 MB in the beginning and 71.3 MB in the end (delta: 12.6 MB). Free memory was 29.0 MB in the beginning and 44.1 MB in the end (delta: -15.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 17:37:58,634 INFO L168 Benchmark]: Witness Printer took 31.23 ms. Allocated memory is still 71.3 MB. Free memory was 44.1 MB in the beginning and 42.4 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-09 17:37:58,637 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 58.7 MB. Free memory was 40.6 MB in the beginning and 40.5 MB in the end (delta: 73.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 157.51 ms. Allocated memory is still 58.7 MB. Free memory was 37.2 MB in the beginning and 41.9 MB in the end (delta: -4.7 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 29.97 ms. Allocated memory is still 58.7 MB. Free memory was 41.9 MB in the beginning and 40.5 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 18.98 ms. Allocated memory is still 58.7 MB. Free memory was 40.5 MB in the beginning and 39.7 MB in the end (delta: 851.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 210.63 ms. Allocated memory is still 58.7 MB. Free memory was 39.5 MB in the beginning and 29.4 MB in the end (delta: 10.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 389.56 ms. Allocated memory was 58.7 MB in the beginning and 71.3 MB in the end (delta: 12.6 MB). Free memory was 29.0 MB in the beginning and 44.1 MB in the end (delta: -15.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 31.23 ms. Allocated memory is still 71.3 MB. Free memory was 44.1 MB in the beginning and 42.4 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: - 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. VerificationResult: UNSAFE, OverallTime: 0.3s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=8occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s 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! Received shutdown request...