./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/bitvector/num_conversion_1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version ff03de63 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/bitvector/num_conversion_1.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 bdb7543d1c240ce49edc036e26416805e34b577c5ba56fd044d3b26828ca42a8 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-ff03de6 [2021-12-21 10:17:43,159 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-21 10:17:43,160 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-21 10:17:43,196 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-21 10:17:43,196 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-21 10:17:43,197 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-21 10:17:43,205 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-21 10:17:43,206 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-21 10:17:43,207 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-21 10:17:43,210 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-21 10:17:43,211 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-21 10:17:43,212 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-21 10:17:43,227 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-21 10:17:43,228 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-21 10:17:43,229 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-21 10:17:43,229 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-21 10:17:43,230 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-21 10:17:43,231 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-21 10:17:43,232 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-21 10:17:43,233 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-21 10:17:43,235 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-21 10:17:43,236 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-21 10:17:43,237 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-21 10:17:43,238 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-21 10:17:43,239 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-21 10:17:43,242 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-21 10:17:43,242 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-21 10:17:43,243 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-21 10:17:43,243 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-21 10:17:43,244 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-21 10:17:43,245 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-21 10:17:43,245 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-21 10:17:43,246 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-21 10:17:43,247 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-21 10:17:43,248 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-21 10:17:43,248 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-21 10:17:43,249 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-21 10:17:43,249 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-21 10:17:43,249 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-21 10:17:43,250 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-21 10:17:43,250 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-21 10:17:43,251 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-21 10:17:43,269 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-21 10:17:43,269 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-21 10:17:43,269 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-21 10:17:43,270 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-21 10:17:43,270 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-21 10:17:43,270 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-21 10:17:43,271 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-21 10:17:43,271 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-21 10:17:43,271 INFO L138 SettingsManager]: * Use SBE=true [2021-12-21 10:17:43,271 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-21 10:17:43,272 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-21 10:17:43,272 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-21 10:17:43,272 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-21 10:17:43,272 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-21 10:17:43,272 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-21 10:17:43,273 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-21 10:17:43,273 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-21 10:17:43,273 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-21 10:17:43,273 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-21 10:17:43,273 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-21 10:17:43,273 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-21 10:17:43,274 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-21 10:17:43,274 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-21 10:17:43,274 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-21 10:17:43,274 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-21 10:17:43,274 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-21 10:17:43,274 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-21 10:17:43,274 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-21 10:17:43,275 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-21 10:17:43,275 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-21 10:17:43,275 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-21 10:17:43,275 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-21 10:17:43,275 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-21 10:17:43,276 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-21 10:17:43,276 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bdb7543d1c240ce49edc036e26416805e34b577c5ba56fd044d3b26828ca42a8 [2021-12-21 10:17:43,454 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-21 10:17:43,481 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-21 10:17:43,483 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-21 10:17:43,483 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-21 10:17:43,484 INFO L275 PluginConnector]: CDTParser initialized [2021-12-21 10:17:43,485 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/bitvector/num_conversion_1.c [2021-12-21 10:17:43,526 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e23a4526d/e532924abd5e422f8b8d2ae2684aec73/FLAG4ebe5ce64 [2021-12-21 10:17:43,911 INFO L306 CDTParser]: Found 1 translation units. [2021-12-21 10:17:43,912 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/bitvector/num_conversion_1.c [2021-12-21 10:17:43,919 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e23a4526d/e532924abd5e422f8b8d2ae2684aec73/FLAG4ebe5ce64 [2021-12-21 10:17:43,930 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e23a4526d/e532924abd5e422f8b8d2ae2684aec73 [2021-12-21 10:17:43,932 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-21 10:17:43,935 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-21 10:17:43,936 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-21 10:17:43,936 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-21 10:17:43,939 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-21 10:17:43,940 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 10:17:43" (1/1) ... [2021-12-21 10:17:43,940 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@60c6fc42 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:17:43, skipping insertion in model container [2021-12-21 10:17:43,940 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 10:17:43" (1/1) ... [2021-12-21 10:17:43,946 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-21 10:17:43,959 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-21 10:17:44,099 WARN L230 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/num_conversion_1.c[673,686] [2021-12-21 10:17:44,112 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-21 10:17:44,117 INFO L203 MainTranslator]: Completed pre-run [2021-12-21 10:17:44,125 WARN L230 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/num_conversion_1.c[673,686] [2021-12-21 10:17:44,129 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-21 10:17:44,138 INFO L208 MainTranslator]: Completed translation [2021-12-21 10:17:44,138 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:17:44 WrapperNode [2021-12-21 10:17:44,139 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-21 10:17:44,139 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-21 10:17:44,140 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-21 10:17:44,140 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-21 10:17:44,144 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:17:44" (1/1) ... [2021-12-21 10:17:44,148 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:17:44" (1/1) ... [2021-12-21 10:17:44,158 INFO L137 Inliner]: procedures = 13, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 34 [2021-12-21 10:17:44,158 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-21 10:17:44,159 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-21 10:17:44,159 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-21 10:17:44,159 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-21 10:17:44,163 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:17:44" (1/1) ... [2021-12-21 10:17:44,163 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:17:44" (1/1) ... [2021-12-21 10:17:44,165 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:17:44" (1/1) ... [2021-12-21 10:17:44,165 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:17:44" (1/1) ... [2021-12-21 10:17:44,168 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:17:44" (1/1) ... [2021-12-21 10:17:44,171 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:17:44" (1/1) ... [2021-12-21 10:17:44,174 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:17:44" (1/1) ... [2021-12-21 10:17:44,178 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-21 10:17:44,178 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-21 10:17:44,179 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-21 10:17:44,179 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-21 10:17:44,180 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:17:44" (1/1) ... [2021-12-21 10:17:44,184 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-21 10:17:44,191 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 10:17:44,212 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-21 10:17:44,233 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-21 10:17:44,237 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-21 10:17:44,237 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-21 10:17:44,237 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-21 10:17:44,237 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-21 10:17:44,272 INFO L234 CfgBuilder]: Building ICFG [2021-12-21 10:17:44,273 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-21 10:17:44,347 INFO L275 CfgBuilder]: Performing block encoding [2021-12-21 10:17:44,350 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-21 10:17:44,350 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-21 10:17:44,352 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 10:17:44 BoogieIcfgContainer [2021-12-21 10:17:44,352 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-21 10:17:44,353 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-21 10:17:44,353 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-21 10:17:44,355 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-21 10:17:44,355 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.12 10:17:43" (1/3) ... [2021-12-21 10:17:44,355 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69a165a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 10:17:44, skipping insertion in model container [2021-12-21 10:17:44,356 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:17:44" (2/3) ... [2021-12-21 10:17:44,356 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69a165a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 10:17:44, skipping insertion in model container [2021-12-21 10:17:44,356 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 10:17:44" (3/3) ... [2021-12-21 10:17:44,357 INFO L111 eAbstractionObserver]: Analyzing ICFG num_conversion_1.c [2021-12-21 10:17:44,360 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-21 10:17:44,360 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-21 10:17:44,386 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-21 10:17:44,390 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, mAutomataTypeConcurrency=PETRI_NET, 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 [2021-12-21 10:17:44,390 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-21 10:17:44,398 INFO L276 IsEmpty]: Start isEmpty. Operand has 13 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 12 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 10:17:44,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-12-21 10:17:44,401 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 10:17:44,401 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-12-21 10:17:44,401 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 10:17:44,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 10:17:44,405 INFO L85 PathProgramCache]: Analyzing trace with hash 889968487, now seen corresponding path program 1 times [2021-12-21 10:17:44,410 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 10:17:44,410 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [957102334] [2021-12-21 10:17:44,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 10:17:44,411 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 10:17:44,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 10:17:44,481 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 10:17:44,482 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 10:17:44,482 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [957102334] [2021-12-21 10:17:44,483 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [957102334] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 10:17:44,483 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 10:17:44,483 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-21 10:17:44,484 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1595242172] [2021-12-21 10:17:44,484 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 10:17:44,487 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-12-21 10:17:44,487 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 10:17:44,502 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-12-21 10:17:44,503 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-21 10:17:44,504 INFO L87 Difference]: Start difference. First operand has 13 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 12 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 10:17:44,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 10:17:44,512 INFO L93 Difference]: Finished difference Result 21 states and 24 transitions. [2021-12-21 10:17:44,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-21 10:17:44,513 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2021-12-21 10:17:44,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 10:17:44,517 INFO L225 Difference]: With dead ends: 21 [2021-12-21 10:17:44,517 INFO L226 Difference]: Without dead ends: 9 [2021-12-21 10:17:44,519 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-21 10:17:44,522 INFO L933 BasicCegarLoop]: 14 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-21 10:17:44,523 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-21 10:17:44,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2021-12-21 10:17:44,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2021-12-21 10:17:44,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 8 states have (on average 1.25) internal successors, (10), 8 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 10:17:44,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 10 transitions. [2021-12-21 10:17:44,542 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 10 transitions. Word has length 6 [2021-12-21 10:17:44,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 10:17:44,542 INFO L470 AbstractCegarLoop]: Abstraction has 9 states and 10 transitions. [2021-12-21 10:17:44,542 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 10:17:44,542 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 10 transitions. [2021-12-21 10:17:44,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-12-21 10:17:44,543 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 10:17:44,543 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-12-21 10:17:44,544 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-21 10:17:44,544 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 10:17:44,546 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 10:17:44,546 INFO L85 PathProgramCache]: Analyzing trace with hash 889640786, now seen corresponding path program 1 times [2021-12-21 10:17:44,547 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 10:17:44,547 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1818611527] [2021-12-21 10:17:44,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 10:17:44,548 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 10:17:44,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 10:17:44,627 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 10:17:44,628 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 10:17:44,628 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1818611527] [2021-12-21 10:17:44,628 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1818611527] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 10:17:44,628 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 10:17:44,629 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-21 10:17:44,629 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1936750032] [2021-12-21 10:17:44,629 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 10:17:44,630 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-21 10:17:44,630 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 10:17:44,630 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-21 10:17:44,631 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-21 10:17:44,636 INFO L87 Difference]: Start difference. First operand 9 states and 10 transitions. Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 10:17:44,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 10:17:44,656 INFO L93 Difference]: Finished difference Result 16 states and 18 transitions. [2021-12-21 10:17:44,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-21 10:17:44,656 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2021-12-21 10:17:44,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 10:17:44,657 INFO L225 Difference]: With dead ends: 16 [2021-12-21 10:17:44,657 INFO L226 Difference]: Without dead ends: 12 [2021-12-21 10:17:44,657 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-21 10:17:44,658 INFO L933 BasicCegarLoop]: 8 mSDtfsCounter, 3 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-21 10:17:44,659 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3 Valid, 14 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-21 10:17:44,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2021-12-21 10:17:44,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 10. [2021-12-21 10:17:44,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 9 states have (on average 1.2222222222222223) internal successors, (11), 9 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 10:17:44,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 11 transitions. [2021-12-21 10:17:44,661 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 11 transitions. Word has length 6 [2021-12-21 10:17:44,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 10:17:44,661 INFO L470 AbstractCegarLoop]: Abstraction has 10 states and 11 transitions. [2021-12-21 10:17:44,662 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 10:17:44,662 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 11 transitions. [2021-12-21 10:17:44,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-12-21 10:17:44,662 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 10:17:44,662 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 10:17:44,662 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-21 10:17:44,663 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 10:17:44,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 10:17:44,663 INFO L85 PathProgramCache]: Analyzing trace with hash 641725625, now seen corresponding path program 1 times [2021-12-21 10:17:44,663 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 10:17:44,664 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1778014851] [2021-12-21 10:17:44,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 10:17:44,664 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 10:17:44,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 10:17:44,704 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 10:17:44,704 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 10:17:44,705 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1778014851] [2021-12-21 10:17:44,705 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1778014851] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-21 10:17:44,705 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2114690711] [2021-12-21 10:17:44,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 10:17:44,705 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-21 10:17:44,705 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 10:17:44,707 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-21 10:17:44,708 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-21 10:17:44,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 10:17:44,752 INFO L263 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 8 conjunts are in the unsatisfiable core [2021-12-21 10:17:44,756 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-21 10:17:44,792 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 10:17:44,792 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-21 10:17:44,836 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 10:17:44,836 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2114690711] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-21 10:17:44,836 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-21 10:17:44,836 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 5] total 8 [2021-12-21 10:17:44,837 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1687438181] [2021-12-21 10:17:44,837 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-21 10:17:44,837 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-21 10:17:44,837 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 10:17:44,838 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-21 10:17:44,838 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2021-12-21 10:17:44,838 INFO L87 Difference]: Start difference. First operand 10 states and 11 transitions. Second operand has 8 states, 8 states have (on average 2.0) internal successors, (16), 8 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 10:17:44,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 10:17:44,867 INFO L93 Difference]: Finished difference Result 23 states and 29 transitions. [2021-12-21 10:17:44,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-21 10:17:44,868 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.0) internal successors, (16), 8 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2021-12-21 10:17:44,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 10:17:44,868 INFO L225 Difference]: With dead ends: 23 [2021-12-21 10:17:44,868 INFO L226 Difference]: Without dead ends: 19 [2021-12-21 10:17:44,869 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=39, Unknown=0, NotChecked=0, Total=72 [2021-12-21 10:17:44,870 INFO L933 BasicCegarLoop]: 10 mSDtfsCounter, 27 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 29 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-21 10:17:44,870 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [27 Valid, 29 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-21 10:17:44,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2021-12-21 10:17:44,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2021-12-21 10:17:44,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 18 states have (on average 1.2777777777777777) internal successors, (23), 18 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 10:17:44,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 23 transitions. [2021-12-21 10:17:44,873 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 23 transitions. Word has length 9 [2021-12-21 10:17:44,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 10:17:44,874 INFO L470 AbstractCegarLoop]: Abstraction has 19 states and 23 transitions. [2021-12-21 10:17:44,874 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.0) internal successors, (16), 8 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 10:17:44,874 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 23 transitions. [2021-12-21 10:17:44,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-12-21 10:17:44,874 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 10:17:44,875 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1] [2021-12-21 10:17:44,898 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-12-21 10:17:45,095 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-21 10:17:45,096 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 10:17:45,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 10:17:45,096 INFO L85 PathProgramCache]: Analyzing trace with hash 1171899538, now seen corresponding path program 2 times [2021-12-21 10:17:45,096 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 10:17:45,096 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [91039545] [2021-12-21 10:17:45,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 10:17:45,097 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 10:17:45,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 10:17:45,212 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 10:17:45,212 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 10:17:45,212 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [91039545] [2021-12-21 10:17:45,212 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [91039545] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-21 10:17:45,213 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [332168295] [2021-12-21 10:17:45,213 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-21 10:17:45,213 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-21 10:17:45,213 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 10:17:45,219 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-21 10:17:45,221 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-12-21 10:17:45,252 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-12-21 10:17:45,252 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-21 10:17:45,252 INFO L263 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 15 conjunts are in the unsatisfiable core [2021-12-21 10:17:45,254 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-21 10:17:45,320 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 10:17:45,320 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-21 10:17:45,554 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 10:17:45,555 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [332168295] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-21 10:17:45,555 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-21 10:17:45,555 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 8] total 17 [2021-12-21 10:17:45,555 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [286760896] [2021-12-21 10:17:45,555 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-21 10:17:45,556 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2021-12-21 10:17:45,556 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 10:17:45,556 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-12-21 10:17:45,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=177, Unknown=0, NotChecked=0, Total=272 [2021-12-21 10:17:45,557 INFO L87 Difference]: Start difference. First operand 19 states and 23 transitions. Second operand has 17 states, 17 states have (on average 2.5294117647058822) internal successors, (43), 17 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 10:17:45,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 10:17:45,848 INFO L93 Difference]: Finished difference Result 41 states and 56 transitions. [2021-12-21 10:17:45,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-12-21 10:17:45,848 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.5294117647058822) internal successors, (43), 17 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2021-12-21 10:17:45,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 10:17:45,849 INFO L225 Difference]: With dead ends: 41 [2021-12-21 10:17:45,849 INFO L226 Difference]: Without dead ends: 37 [2021-12-21 10:17:45,850 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 23 SyntacticMatches, 3 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 145 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=167, Invalid=295, Unknown=0, NotChecked=0, Total=462 [2021-12-21 10:17:45,850 INFO L933 BasicCegarLoop]: 15 mSDtfsCounter, 68 mSDsluCounter, 81 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 96 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-21 10:17:45,851 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [68 Valid, 96 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-21 10:17:45,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2021-12-21 10:17:45,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2021-12-21 10:17:45,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 36 states have (on average 1.3333333333333333) internal successors, (48), 36 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 10:17:45,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 48 transitions. [2021-12-21 10:17:45,855 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 48 transitions. Word has length 18 [2021-12-21 10:17:45,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 10:17:45,855 INFO L470 AbstractCegarLoop]: Abstraction has 37 states and 48 transitions. [2021-12-21 10:17:45,855 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.5294117647058822) internal successors, (43), 17 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 10:17:45,856 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 48 transitions. [2021-12-21 10:17:45,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-12-21 10:17:45,856 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 10:17:45,856 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 1, 1, 1, 1, 1, 1] [2021-12-21 10:17:45,872 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2021-12-21 10:17:46,056 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2021-12-21 10:17:46,057 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 10:17:46,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 10:17:46,057 INFO L85 PathProgramCache]: Analyzing trace with hash -1720528430, now seen corresponding path program 3 times [2021-12-21 10:17:46,058 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 10:17:46,058 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1172474219] [2021-12-21 10:17:46,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 10:17:46,058 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 10:17:46,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 10:17:46,105 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-21 10:17:46,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 10:17:46,148 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-21 10:17:46,148 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-12-21 10:17:46,148 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-12-21 10:17:46,150 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-21 10:17:46,152 INFO L732 BasicCegarLoop]: Path program histogram: [3, 1, 1] [2021-12-21 10:17:46,158 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-21 10:17:46,180 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.12 10:17:46 BoogieIcfgContainer [2021-12-21 10:17:46,180 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-21 10:17:46,181 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-21 10:17:46,181 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-21 10:17:46,181 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-21 10:17:46,181 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 10:17:44" (3/4) ... [2021-12-21 10:17:46,183 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-12-21 10:17:46,183 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-21 10:17:46,184 INFO L158 Benchmark]: Toolchain (without parser) took 2249.09ms. Allocated memory was 115.3MB in the beginning and 167.8MB in the end (delta: 52.4MB). Free memory was 89.6MB in the beginning and 138.0MB in the end (delta: -48.4MB). Peak memory consumption was 5.0MB. Max. memory is 16.1GB. [2021-12-21 10:17:46,184 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 115.3MB. Free memory is still 74.0MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-21 10:17:46,184 INFO L158 Benchmark]: CACSL2BoogieTranslator took 202.59ms. Allocated memory is still 115.3MB. Free memory was 89.6MB in the beginning and 89.9MB in the end (delta: -255.0kB). Peak memory consumption was 10.9MB. Max. memory is 16.1GB. [2021-12-21 10:17:46,185 INFO L158 Benchmark]: Boogie Procedure Inliner took 19.05ms. Allocated memory is still 115.3MB. Free memory was 89.9MB in the beginning and 88.4MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-21 10:17:46,185 INFO L158 Benchmark]: Boogie Preprocessor took 18.75ms. Allocated memory is still 115.3MB. Free memory was 88.4MB in the beginning and 87.4MB in the end (delta: 994.4kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-21 10:17:46,185 INFO L158 Benchmark]: RCFGBuilder took 173.30ms. Allocated memory is still 115.3MB. Free memory was 87.4MB in the beginning and 78.6MB in the end (delta: 8.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-21 10:17:46,185 INFO L158 Benchmark]: TraceAbstraction took 1827.48ms. Allocated memory was 115.3MB in the beginning and 167.8MB in the end (delta: 52.4MB). Free memory was 78.3MB in the beginning and 138.0MB in the end (delta: -59.7MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-21 10:17:46,186 INFO L158 Benchmark]: Witness Printer took 2.67ms. Allocated memory is still 167.8MB. Free memory is still 138.0MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-21 10:17:46,187 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 115.3MB. Free memory is still 74.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 202.59ms. Allocated memory is still 115.3MB. Free memory was 89.6MB in the beginning and 89.9MB in the end (delta: -255.0kB). Peak memory consumption was 10.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 19.05ms. Allocated memory is still 115.3MB. Free memory was 89.9MB in the beginning and 88.4MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 18.75ms. Allocated memory is still 115.3MB. Free memory was 88.4MB in the beginning and 87.4MB in the end (delta: 994.4kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 173.30ms. Allocated memory is still 115.3MB. Free memory was 87.4MB in the beginning and 78.6MB in the end (delta: 8.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 1827.48ms. Allocated memory was 115.3MB in the beginning and 167.8MB in the end (delta: 52.4MB). Free memory was 78.3MB in the beginning and 138.0MB in the end (delta: -59.7MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 2.67ms. Allocated memory is still 167.8MB. Free memory is still 138.0MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 16]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of shiftLeft at line 32, overapproximation of bitwiseAnd at line 33. Possible FailurePath: [L24] unsigned char x; [L25] unsigned char y; [L26] unsigned char c; [L28] x = 37 [L29] y = 0 [L30] c = 0 VAL [c=0, x=37, y=0] [L31] COND TRUE c < (unsigned char)8 [L32] unsigned char i = ((unsigned char)1) << c; [L33] unsigned char bit = x & i; VAL [c=0, x=37, y=0] [L34] COND FALSE !(bit != (unsigned char)0) VAL [bit=0, c=0, x=37, y=0] [L37] c = c + ((unsigned char)1) VAL [bit=0, c=1, x=37, y=0] [L31] COND TRUE c < (unsigned char)8 [L32] unsigned char i = ((unsigned char)1) << c; [L33] unsigned char bit = x & i; VAL [c=1, x=37, y=0] [L34] COND FALSE !(bit != (unsigned char)0) VAL [bit=0, c=1, x=37, y=0] [L37] c = c + ((unsigned char)1) VAL [bit=0, c=2, x=37, y=0] [L31] COND TRUE c < (unsigned char)8 [L32] unsigned char i = ((unsigned char)1) << c; [L33] unsigned char bit = x & i; VAL [c=2, x=37, y=0] [L34] COND FALSE !(bit != (unsigned char)0) VAL [bit=0, c=2, x=37, y=0] [L37] c = c + ((unsigned char)1) VAL [bit=0, c=3, x=37, y=0] [L31] COND TRUE c < (unsigned char)8 [L32] unsigned char i = ((unsigned char)1) << c; [L33] unsigned char bit = x & i; VAL [c=3, x=37, y=0] [L34] COND FALSE !(bit != (unsigned char)0) VAL [bit=0, c=3, x=37, y=0] [L37] c = c + ((unsigned char)1) VAL [bit=0, c=4, x=37, y=0] [L31] COND TRUE c < (unsigned char)8 [L32] unsigned char i = ((unsigned char)1) << c; [L33] unsigned char bit = x & i; VAL [c=4, x=37, y=0] [L34] COND FALSE !(bit != (unsigned char)0) VAL [bit=0, c=4, x=37, y=0] [L37] c = c + ((unsigned char)1) VAL [bit=0, c=5, x=37, y=0] [L31] COND TRUE c < (unsigned char)8 [L32] unsigned char i = ((unsigned char)1) << c; [L33] unsigned char bit = x & i; VAL [c=5, x=37, y=0] [L34] COND FALSE !(bit != (unsigned char)0) VAL [bit=0, c=5, x=37, y=0] [L37] c = c + ((unsigned char)1) VAL [bit=0, c=6, x=37, y=0] [L31] COND TRUE c < (unsigned char)8 [L32] unsigned char i = ((unsigned char)1) << c; [L33] unsigned char bit = x & i; VAL [c=6, x=37, y=0] [L34] COND FALSE !(bit != (unsigned char)0) VAL [bit=0, c=6, x=37, y=0] [L37] c = c + ((unsigned char)1) VAL [bit=0, c=7, x=37, y=0] [L31] COND TRUE c < (unsigned char)8 [L32] unsigned char i = ((unsigned char)1) << c; [L33] unsigned char bit = x & i; VAL [c=7, x=37, y=0] [L34] COND FALSE !(bit != (unsigned char)0) VAL [bit=0, c=7, x=37, y=0] [L37] c = c + ((unsigned char)1) VAL [bit=0, c=8, x=37, y=0] [L31] COND FALSE !(c < (unsigned char)8) VAL [bit=0, c=8, x=37, y=0] [L39] CALL __VERIFIER_assert(x == y) [L15] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L16] reach_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 13 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.8s, OverallIterations: 5, TraceHistogramMax: 8, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 98 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 98 mSDsluCounter, 153 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 106 mSDsCounter, 33 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 104 IncrementalHoareTripleChecker+Invalid, 137 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 33 mSolverCounterUnsat, 47 mSDtfsCounter, 104 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 72 GetRequests, 41 SyntacticMatches, 3 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 154 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=37occurred in iteration=4, InterpolantAutomatonStates: 26, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 96 NumberOfCodeBlocks, 96 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 85 ConstructedInterpolants, 0 QuantifiedInterpolants, 606 SizeOfPredicates, 3 NumberOfNonLiveVariables, 103 ConjunctsInSsa, 23 ConjunctsInUnsatCore, 8 InterpolantComputations, 2 PerfectInterpolantSequences, 0/69 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 [2021-12-21 10:17:46,203 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/bitvector/num_conversion_1.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 bdb7543d1c240ce49edc036e26416805e34b577c5ba56fd044d3b26828ca42a8 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-ff03de6 [2021-12-21 10:17:47,829 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-21 10:17:47,831 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-21 10:17:47,857 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-21 10:17:47,859 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-21 10:17:47,862 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-21 10:17:47,864 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-21 10:17:47,868 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-21 10:17:47,870 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-21 10:17:47,875 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-21 10:17:47,875 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-21 10:17:47,879 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-21 10:17:47,879 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-21 10:17:47,880 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-21 10:17:47,881 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-21 10:17:47,882 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-21 10:17:47,883 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-21 10:17:47,884 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-21 10:17:47,885 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-21 10:17:47,887 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-21 10:17:47,891 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-21 10:17:47,892 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-21 10:17:47,893 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-21 10:17:47,893 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-21 10:17:47,897 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-21 10:17:47,899 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-21 10:17:47,899 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-21 10:17:47,899 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-21 10:17:47,900 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-21 10:17:47,908 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-21 10:17:47,909 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-21 10:17:47,909 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-21 10:17:47,910 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-21 10:17:47,911 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-21 10:17:47,911 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-21 10:17:47,912 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-21 10:17:47,912 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-21 10:17:47,913 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-21 10:17:47,913 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-21 10:17:47,913 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-21 10:17:47,914 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-21 10:17:47,916 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-12-21 10:17:47,936 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-21 10:17:47,936 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-21 10:17:47,937 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-21 10:17:47,937 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-21 10:17:47,938 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-21 10:17:47,938 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-21 10:17:47,939 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-21 10:17:47,939 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-21 10:17:47,939 INFO L138 SettingsManager]: * Use SBE=true [2021-12-21 10:17:47,940 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-21 10:17:47,940 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-21 10:17:47,940 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-21 10:17:47,940 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-21 10:17:47,941 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-21 10:17:47,941 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-21 10:17:47,941 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-21 10:17:47,941 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-12-21 10:17:47,941 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-12-21 10:17:47,941 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-12-21 10:17:47,941 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-21 10:17:47,941 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-21 10:17:47,942 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-21 10:17:47,942 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-21 10:17:47,942 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-21 10:17:47,942 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-21 10:17:47,942 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-21 10:17:47,942 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-21 10:17:47,943 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-21 10:17:47,943 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-21 10:17:47,943 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-21 10:17:47,943 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-12-21 10:17:47,943 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-12-21 10:17:47,943 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-21 10:17:47,943 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-21 10:17:47,944 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-21 10:17:47,944 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-21 10:17:47,944 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-12-21 10:17:47,944 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bdb7543d1c240ce49edc036e26416805e34b577c5ba56fd044d3b26828ca42a8 [2021-12-21 10:17:48,174 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-21 10:17:48,187 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-21 10:17:48,189 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-21 10:17:48,190 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-21 10:17:48,190 INFO L275 PluginConnector]: CDTParser initialized [2021-12-21 10:17:48,191 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/bitvector/num_conversion_1.c [2021-12-21 10:17:48,226 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b24ed116a/5b8f8cfd1ab94fa4b5b2e4ff14ee4de9/FLAG7059ee0e2 [2021-12-21 10:17:48,578 INFO L306 CDTParser]: Found 1 translation units. [2021-12-21 10:17:48,578 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/bitvector/num_conversion_1.c [2021-12-21 10:17:48,582 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b24ed116a/5b8f8cfd1ab94fa4b5b2e4ff14ee4de9/FLAG7059ee0e2 [2021-12-21 10:17:48,589 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b24ed116a/5b8f8cfd1ab94fa4b5b2e4ff14ee4de9 [2021-12-21 10:17:48,591 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-21 10:17:48,592 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-21 10:17:48,593 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-21 10:17:48,593 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-21 10:17:48,595 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-21 10:17:48,595 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 10:17:48" (1/1) ... [2021-12-21 10:17:48,596 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2d9e6df6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:17:48, skipping insertion in model container [2021-12-21 10:17:48,596 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 10:17:48" (1/1) ... [2021-12-21 10:17:48,600 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-21 10:17:48,608 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-21 10:17:48,683 WARN L230 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/num_conversion_1.c[673,686] [2021-12-21 10:17:48,691 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-21 10:17:48,699 INFO L203 MainTranslator]: Completed pre-run [2021-12-21 10:17:48,707 WARN L230 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/num_conversion_1.c[673,686] [2021-12-21 10:17:48,709 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-21 10:17:48,717 INFO L208 MainTranslator]: Completed translation [2021-12-21 10:17:48,718 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:17:48 WrapperNode [2021-12-21 10:17:48,718 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-21 10:17:48,719 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-21 10:17:48,719 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-21 10:17:48,719 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-21 10:17:48,723 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:17:48" (1/1) ... [2021-12-21 10:17:48,750 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:17:48" (1/1) ... [2021-12-21 10:17:48,789 INFO L137 Inliner]: procedures = 13, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 34 [2021-12-21 10:17:48,790 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-21 10:17:48,790 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-21 10:17:48,791 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-21 10:17:48,791 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-21 10:17:48,796 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:17:48" (1/1) ... [2021-12-21 10:17:48,796 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:17:48" (1/1) ... [2021-12-21 10:17:48,806 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:17:48" (1/1) ... [2021-12-21 10:17:48,806 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:17:48" (1/1) ... [2021-12-21 10:17:48,816 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:17:48" (1/1) ... [2021-12-21 10:17:48,819 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:17:48" (1/1) ... [2021-12-21 10:17:48,820 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:17:48" (1/1) ... [2021-12-21 10:17:48,824 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-21 10:17:48,825 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-21 10:17:48,825 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-21 10:17:48,826 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-21 10:17:48,826 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:17:48" (1/1) ... [2021-12-21 10:17:48,831 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-21 10:17:48,838 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 10:17:48,846 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-21 10:17:48,863 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-21 10:17:48,887 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-21 10:17:48,888 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-21 10:17:48,888 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-21 10:17:48,888 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-12-21 10:17:48,934 INFO L234 CfgBuilder]: Building ICFG [2021-12-21 10:17:48,935 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-21 10:17:48,993 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder has thrown an exception: java.lang.AssertionError: Not a regular bitvector operator with bitvector result: bvshl at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.BitvectorUtils$RegularBitvectorOperation_BitvectorResult.isCommutative(BitvectorUtils.java:505) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.BitvectorUtils$BitvectorOperation.notSimplified(BitvectorUtils.java:296) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.BitvectorUtils$BitvectorOperation.simplify_NonConstantCase(BitvectorUtils.java:291) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.BitvectorUtils$BitvectorOperation.simplifiedResult(BitvectorUtils.java:286) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.BitvectorUtils.termWithLocalSimplification(BitvectorUtils.java:217) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.termWithLocalSimplification(SmtUtils.java:1490) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Expression2Term.translateFunctionApplication(Expression2Term.java:405) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Expression2Term.translate(Expression2Term.java:258) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Expression2Term.translate(Expression2Term.java:248) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Expression2Term.translateToTerm(Expression2Term.java:120) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Statements2TransFormula.addAssignment(Statements2TransFormula.java:288) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Statements2TransFormula.statementSequence(Statements2TransFormula.java:703) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.util.TransFormulaAdder.addTransitionFormulas(TransFormulaAdder.java:119) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder$ProcedureCfgBuilder.buildProcedureCfgFromImplementation(CfgBuilder.java:733) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder.createIcfg(CfgBuilder.java:264) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBuilderObserver.process(RCFGBuilderObserver.java:88) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.DFSTreeWalker.runObserver(DFSTreeWalker.java:65) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.runObserver(BaseWalker.java:93) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.run(BaseWalker.java:86) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-12-21 10:17:48,997 INFO L158 Benchmark]: Toolchain (without parser) took 404.00ms. Allocated memory is still 73.4MB. Free memory was 56.4MB in the beginning and 48.2MB in the end (delta: 8.2MB). Peak memory consumption was 7.0MB. Max. memory is 16.1GB. [2021-12-21 10:17:48,997 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 73.4MB. Free memory was 54.6MB in the beginning and 54.5MB in the end (delta: 94.5kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-21 10:17:48,998 INFO L158 Benchmark]: CACSL2BoogieTranslator took 125.34ms. Allocated memory is still 73.4MB. Free memory was 56.2MB in the beginning and 46.1MB in the end (delta: 10.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-21 10:17:48,998 INFO L158 Benchmark]: Boogie Procedure Inliner took 71.35ms. Allocated memory is still 73.4MB. Free memory was 45.9MB in the beginning and 56.5MB in the end (delta: -10.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-12-21 10:17:48,998 INFO L158 Benchmark]: Boogie Preprocessor took 33.90ms. Allocated memory is still 73.4MB. Free memory was 56.5MB in the beginning and 55.4MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-21 10:17:48,999 INFO L158 Benchmark]: RCFGBuilder took 170.63ms. Allocated memory is still 73.4MB. Free memory was 55.4MB in the beginning and 48.2MB in the end (delta: 7.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-12-21 10:17:49,001 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 73.4MB. Free memory was 54.6MB in the beginning and 54.5MB in the end (delta: 94.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 125.34ms. Allocated memory is still 73.4MB. Free memory was 56.2MB in the beginning and 46.1MB in the end (delta: 10.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 71.35ms. Allocated memory is still 73.4MB. Free memory was 45.9MB in the beginning and 56.5MB in the end (delta: -10.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 33.90ms. Allocated memory is still 73.4MB. Free memory was 56.5MB in the beginning and 55.4MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 170.63ms. Allocated memory is still 73.4MB. Free memory was 55.4MB in the beginning and 48.2MB in the end (delta: 7.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: - ExceptionOrErrorResult: AssertionError: Not a regular bitvector operator with bitvector result: bvshl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: AssertionError: Not a regular bitvector operator with bitvector result: bvshl: de.uni_freiburg.informatik.ultimate.lib.smtlibutils.BitvectorUtils$RegularBitvectorOperation_BitvectorResult.isCommutative(BitvectorUtils.java:505) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-12-21 10:17:49,048 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: AssertionError: Not a regular bitvector operator with bitvector result: bvshl