/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.4 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/bitvector-regression/integerpromotion-2.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-89f541c [2020-08-28 06:04:02,323 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-28 06:04:02,327 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-28 06:04:02,373 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-28 06:04:02,374 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-28 06:04:02,385 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-28 06:04:02,387 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-28 06:04:02,392 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-28 06:04:02,395 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-28 06:04:02,398 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-28 06:04:02,399 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-28 06:04:02,401 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-28 06:04:02,401 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-28 06:04:02,404 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-28 06:04:02,407 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-28 06:04:02,409 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-28 06:04:02,410 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-28 06:04:02,412 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-28 06:04:02,414 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-28 06:04:02,424 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-28 06:04:02,426 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-28 06:04:02,427 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-28 06:04:02,429 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-28 06:04:02,430 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-28 06:04:02,433 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-28 06:04:02,433 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-28 06:04:02,433 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-28 06:04:02,437 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-28 06:04:02,438 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-28 06:04:02,440 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-08-28 06:04:02,440 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-28 06:04:02,441 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-28 06:04:02,442 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-28 06:04:02,443 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-28 06:04:02,445 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-28 06:04:02,445 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-28 06:04:02,446 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-28 06:04:02,446 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-28 06:04:02,446 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-28 06:04:02,447 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-28 06:04:02,449 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-28 06:04:02,450 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-08-28 06:04:02,496 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-28 06:04:02,497 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-28 06:04:02,498 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-28 06:04:02,499 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-28 06:04:02,499 INFO L138 SettingsManager]: * Use SBE=true [2020-08-28 06:04:02,499 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-28 06:04:02,500 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-28 06:04:02,500 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-28 06:04:02,500 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-28 06:04:02,500 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-28 06:04:02,501 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-28 06:04:02,502 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-28 06:04:02,502 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-28 06:04:02,502 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-28 06:04:02,502 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-28 06:04:02,503 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-28 06:04:02,503 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-28 06:04:02,503 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-28 06:04:02,503 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-28 06:04:02,504 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-28 06:04:02,504 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-28 06:04:02,504 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-28 06:04:02,504 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-28 06:04:02,504 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-28 06:04:02,505 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-28 06:04:02,505 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-28 06:04:02,505 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-28 06:04:02,505 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-28 06:04:02,505 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-28 06:04:02,506 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.4;log-additional-information=true; [2020-08-28 06:04:03,016 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-28 06:04:03,035 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-28 06:04:03,040 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-28 06:04:03,041 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-28 06:04:03,042 INFO L275 PluginConnector]: CDTParser initialized [2020-08-28 06:04:03,044 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/bitvector-regression/integerpromotion-2.c [2020-08-28 06:04:03,130 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/eb00506ef/7ccc34eca98d457aa0d0a31d1a685328/FLAG533153bdb [2020-08-28 06:04:03,702 INFO L306 CDTParser]: Found 1 translation units. [2020-08-28 06:04:03,703 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/bitvector-regression/integerpromotion-2.c [2020-08-28 06:04:03,711 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/eb00506ef/7ccc34eca98d457aa0d0a31d1a685328/FLAG533153bdb [2020-08-28 06:04:04,070 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/eb00506ef/7ccc34eca98d457aa0d0a31d1a685328 [2020-08-28 06:04:04,087 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-28 06:04:04,089 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-28 06:04:04,091 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-28 06:04:04,092 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-28 06:04:04,097 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-28 06:04:04,098 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.08 06:04:04" (1/1) ... [2020-08-28 06:04:04,103 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1987833a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 06:04:04, skipping insertion in model container [2020-08-28 06:04:04,103 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.08 06:04:04" (1/1) ... [2020-08-28 06:04:04,113 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-28 06:04:04,135 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-28 06:04:04,352 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-28 06:04:04,360 INFO L203 MainTranslator]: Completed pre-run [2020-08-28 06:04:04,379 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-28 06:04:04,396 INFO L208 MainTranslator]: Completed translation [2020-08-28 06:04:04,397 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 06:04:04 WrapperNode [2020-08-28 06:04:04,397 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-28 06:04:04,398 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-28 06:04:04,398 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-28 06:04:04,399 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-28 06:04:04,482 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 06:04:04" (1/1) ... [2020-08-28 06:04:04,483 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 06:04:04" (1/1) ... [2020-08-28 06:04:04,489 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 06:04:04" (1/1) ... [2020-08-28 06:04:04,490 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 06:04:04" (1/1) ... [2020-08-28 06:04:04,495 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 06:04:04" (1/1) ... [2020-08-28 06:04:04,498 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 06:04:04" (1/1) ... [2020-08-28 06:04:04,499 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 06:04:04" (1/1) ... [2020-08-28 06:04:04,501 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-28 06:04:04,501 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-28 06:04:04,501 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-28 06:04:04,501 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-28 06:04:04,502 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 06:04:04" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-28 06:04:04,577 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-28 06:04:04,577 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-28 06:04:04,578 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-28 06:04:04,578 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-28 06:04:04,578 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-28 06:04:04,578 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-28 06:04:04,579 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-28 06:04:04,755 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-28 06:04:04,755 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-08-28 06:04:04,761 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.08 06:04:04 BoogieIcfgContainer [2020-08-28 06:04:04,761 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-28 06:04:04,763 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-28 06:04:04,763 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-28 06:04:04,767 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-28 06:04:04,767 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.08 06:04:04" (1/3) ... [2020-08-28 06:04:04,768 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47f134f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.08 06:04:04, skipping insertion in model container [2020-08-28 06:04:04,768 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 06:04:04" (2/3) ... [2020-08-28 06:04:04,769 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47f134f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.08 06:04:04, skipping insertion in model container [2020-08-28 06:04:04,769 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.08 06:04:04" (3/3) ... [2020-08-28 06:04:04,772 INFO L109 eAbstractionObserver]: Analyzing ICFG integerpromotion-2.c [2020-08-28 06:04:04,784 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-28 06:04:04,795 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-28 06:04:04,816 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-28 06:04:04,844 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-28 06:04:04,844 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-28 06:04:04,845 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-28 06:04:04,845 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-28 06:04:04,845 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-28 06:04:04,845 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-28 06:04:04,845 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-28 06:04:04,845 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-28 06:04:04,863 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states. [2020-08-28 06:04:04,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-08-28 06:04:04,871 INFO L414 BasicCegarLoop]: Found error trace [2020-08-28 06:04:04,872 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-08-28 06:04:04,873 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-28 06:04:04,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-28 06:04:04,881 INFO L82 PathProgramCache]: Analyzing trace with hash 408836530, now seen corresponding path program 1 times [2020-08-28 06:04:04,892 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-28 06:04:04,893 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [989617739] [2020-08-28 06:04:04,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-28 06:04:05,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-08-28 06:04:05,004 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-08-28 06:04:05,004 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-08-28 06:04:05,009 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-28 06:04:05,026 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.08 06:04:05 BoogieIcfgContainer [2020-08-28 06:04:05,026 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-08-28 06:04:05,031 INFO L168 Benchmark]: Toolchain (without parser) took 939.82 ms. Allocated memory was 141.0 MB in the beginning and 202.9 MB in the end (delta: 61.9 MB). Free memory was 102.7 MB in the beginning and 159.9 MB in the end (delta: -57.1 MB). Peak memory consumption was 4.7 MB. Max. memory is 7.1 GB. [2020-08-28 06:04:05,032 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 141.0 MB. Free memory was 121.3 MB in the beginning and 121.1 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-08-28 06:04:05,033 INFO L168 Benchmark]: CACSL2BoogieTranslator took 306.42 ms. Allocated memory is still 141.0 MB. Free memory was 102.5 MB in the beginning and 93.2 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.3 MB. Max. memory is 7.1 GB. [2020-08-28 06:04:05,035 INFO L168 Benchmark]: Boogie Preprocessor took 102.60 ms. Allocated memory was 141.0 MB in the beginning and 202.9 MB in the end (delta: 61.9 MB). Free memory was 93.2 MB in the beginning and 181.5 MB in the end (delta: -88.3 MB). Peak memory consumption was 12.6 MB. Max. memory is 7.1 GB. [2020-08-28 06:04:05,036 INFO L168 Benchmark]: RCFGBuilder took 260.33 ms. Allocated memory is still 202.9 MB. Free memory was 181.5 MB in the beginning and 171.0 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 7.1 GB. [2020-08-28 06:04:05,037 INFO L168 Benchmark]: TraceAbstraction took 263.92 ms. Allocated memory is still 202.9 MB. Free memory was 170.4 MB in the beginning and 159.9 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 7.1 GB. [2020-08-28 06:04:05,041 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 141.0 MB. Free memory was 121.3 MB in the beginning and 121.1 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 306.42 ms. Allocated memory is still 141.0 MB. Free memory was 102.5 MB in the beginning and 93.2 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 102.60 ms. Allocated memory was 141.0 MB in the beginning and 202.9 MB in the end (delta: 61.9 MB). Free memory was 93.2 MB in the beginning and 181.5 MB in the end (delta: -88.3 MB). Peak memory consumption was 12.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 260.33 ms. Allocated memory is still 202.9 MB. Free memory was 181.5 MB in the beginning and 171.0 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 263.92 ms. Allocated memory is still 202.9 MB. Free memory was 170.4 MB in the beginning and 159.9 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 12]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of bitwiseComplement at line 6. Possible FailurePath: [L5] unsigned char port = 0x5a; [L6] unsigned char result_8 = ( ~port ) >> 4; [L7] COND TRUE result_8 != 0xfa [L12] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 12 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.1s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=12occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 7 NumberOfCodeBlocks, 7 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...