/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=0.2 --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/signextension-1.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-177f698 [2020-08-22 03:48:33,772 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-22 03:48:33,775 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-22 03:48:33,815 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-22 03:48:33,816 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-22 03:48:33,825 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-22 03:48:33,827 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-22 03:48:33,830 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-22 03:48:33,833 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-22 03:48:33,836 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-22 03:48:33,837 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-22 03:48:33,838 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-22 03:48:33,838 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-22 03:48:33,840 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-22 03:48:33,843 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-22 03:48:33,844 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-22 03:48:33,846 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-22 03:48:33,847 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-22 03:48:33,848 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-22 03:48:33,856 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-22 03:48:33,858 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-22 03:48:33,860 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-22 03:48:33,861 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-22 03:48:33,861 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-22 03:48:33,873 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-22 03:48:33,874 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-22 03:48:33,874 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-22 03:48:33,875 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-22 03:48:33,881 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-22 03:48:33,882 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-08-22 03:48:33,882 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-22 03:48:33,883 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-22 03:48:33,889 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-22 03:48:33,890 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-22 03:48:33,891 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-22 03:48:33,891 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-22 03:48:33,892 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-22 03:48:33,892 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-22 03:48:33,892 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-22 03:48:33,893 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-22 03:48:33,894 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-22 03:48:33,895 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 [2020-08-22 03:48:33,923 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-22 03:48:33,923 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-22 03:48:33,925 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-22 03:48:33,925 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-22 03:48:33,925 INFO L138 SettingsManager]: * Use SBE=true [2020-08-22 03:48:33,925 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-22 03:48:33,926 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-22 03:48:33,926 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-22 03:48:33,926 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-22 03:48:33,926 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-22 03:48:33,926 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-22 03:48:33,927 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-22 03:48:33,927 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-22 03:48:33,927 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-22 03:48:33,927 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-22 03:48:33,927 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-22 03:48:33,928 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-22 03:48:33,928 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-22 03:48:33,928 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-22 03:48:33,928 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-22 03:48:33,928 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-22 03:48:33,929 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-22 03:48:33,929 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-22 03:48:33,929 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-22 03:48:33,929 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-22 03:48:33,929 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-22 03:48:33,930 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-22 03:48:33,930 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-22 03:48:33,930 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-22 03:48:33,930 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=0.2;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=0.2;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=0.2;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=0.2;log-additional-information=true; [2020-08-22 03:48:34,256 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-22 03:48:34,268 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-22 03:48:34,271 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-22 03:48:34,273 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-22 03:48:34,273 INFO L275 PluginConnector]: CDTParser initialized [2020-08-22 03:48:34,274 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/bitvector-regression/signextension-1.c [2020-08-22 03:48:34,358 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a13c6d83f/cfffaaec94894e83b81fe2c1ec162c23/FLAG2d0d7b0d4 [2020-08-22 03:48:34,836 INFO L306 CDTParser]: Found 1 translation units. [2020-08-22 03:48:34,837 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/bitvector-regression/signextension-1.c [2020-08-22 03:48:34,842 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a13c6d83f/cfffaaec94894e83b81fe2c1ec162c23/FLAG2d0d7b0d4 [2020-08-22 03:48:35,307 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a13c6d83f/cfffaaec94894e83b81fe2c1ec162c23 [2020-08-22 03:48:35,317 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-22 03:48:35,318 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-22 03:48:35,320 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-22 03:48:35,320 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-22 03:48:35,324 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-22 03:48:35,325 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 03:48:35" (1/1) ... [2020-08-22 03:48:35,328 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5e50e298 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 03:48:35, skipping insertion in model container [2020-08-22 03:48:35,328 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 03:48:35" (1/1) ... [2020-08-22 03:48:35,336 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-22 03:48:35,354 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-22 03:48:35,543 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 03:48:35,551 INFO L203 MainTranslator]: Completed pre-run [2020-08-22 03:48:35,566 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 03:48:35,580 INFO L208 MainTranslator]: Completed translation [2020-08-22 03:48:35,580 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 03:48:35 WrapperNode [2020-08-22 03:48:35,580 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-22 03:48:35,581 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-22 03:48:35,581 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-22 03:48:35,582 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-22 03:48:35,592 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 03:48:35" (1/1) ... [2020-08-22 03:48:35,593 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 03:48:35" (1/1) ... [2020-08-22 03:48:35,674 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 03:48:35" (1/1) ... [2020-08-22 03:48:35,675 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 03:48:35" (1/1) ... [2020-08-22 03:48:35,678 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 03:48:35" (1/1) ... [2020-08-22 03:48:35,680 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 03:48:35" (1/1) ... [2020-08-22 03:48:35,681 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 03:48:35" (1/1) ... [2020-08-22 03:48:35,682 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-22 03:48:35,682 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-22 03:48:35,682 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-22 03:48:35,682 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-22 03:48:35,683 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 03:48:35" (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 [2020-08-22 03:48:35,750 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-22 03:48:35,750 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-22 03:48:35,750 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-22 03:48:35,750 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-22 03:48:35,750 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-22 03:48:35,751 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-22 03:48:35,751 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-22 03:48:35,899 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-22 03:48:35,900 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-08-22 03:48:35,903 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 03:48:35 BoogieIcfgContainer [2020-08-22 03:48:35,904 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-22 03:48:35,905 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-22 03:48:35,905 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-22 03:48:35,908 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-22 03:48:35,909 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.08 03:48:35" (1/3) ... [2020-08-22 03:48:35,910 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79a45293 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 03:48:35, skipping insertion in model container [2020-08-22 03:48:35,910 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 03:48:35" (2/3) ... [2020-08-22 03:48:35,910 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79a45293 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 03:48:35, skipping insertion in model container [2020-08-22 03:48:35,910 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 03:48:35" (3/3) ... [2020-08-22 03:48:35,912 INFO L109 eAbstractionObserver]: Analyzing ICFG signextension-1.c [2020-08-22 03:48:35,924 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-22 03:48:35,932 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-22 03:48:35,947 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-22 03:48:35,972 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-22 03:48:35,972 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-22 03:48:35,972 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-22 03:48:35,972 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-22 03:48:35,973 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-22 03:48:35,973 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-22 03:48:35,973 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-22 03:48:35,973 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-22 03:48:35,990 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states. [2020-08-22 03:48:35,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-08-22 03:48:35,997 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 03:48:35,999 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-08-22 03:48:35,999 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 03:48:36,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 03:48:36,006 INFO L82 PathProgramCache]: Analyzing trace with hash 408836530, now seen corresponding path program 1 times [2020-08-22 03:48:36,012 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 03:48:36,013 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [106218751] [2020-08-22 03:48:36,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 03:48:36,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-08-22 03:48:36,135 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-08-22 03:48:36,136 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-08-22 03:48:36,140 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-22 03:48:36,157 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.08 03:48:36 BoogieIcfgContainer [2020-08-22 03:48:36,157 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-08-22 03:48:36,160 INFO L168 Benchmark]: Toolchain (without parser) took 840.79 ms. Allocated memory was 140.5 MB in the beginning and 202.4 MB in the end (delta: 61.9 MB). Free memory was 103.1 MB in the beginning and 158.4 MB in the end (delta: -55.4 MB). Peak memory consumption was 6.5 MB. Max. memory is 7.1 GB. [2020-08-22 03:48:36,161 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 140.5 MB. Free memory was 122.1 MB in the beginning and 121.9 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-08-22 03:48:36,162 INFO L168 Benchmark]: CACSL2BoogieTranslator took 261.38 ms. Allocated memory is still 140.5 MB. Free memory was 102.9 MB in the beginning and 93.5 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 7.1 GB. [2020-08-22 03:48:36,164 INFO L168 Benchmark]: Boogie Preprocessor took 100.51 ms. Allocated memory was 140.5 MB in the beginning and 202.4 MB in the end (delta: 61.9 MB). Free memory was 93.5 MB in the beginning and 181.5 MB in the end (delta: -88.1 MB). Peak memory consumption was 13.0 MB. Max. memory is 7.1 GB. [2020-08-22 03:48:36,165 INFO L168 Benchmark]: RCFGBuilder took 221.86 ms. Allocated memory is still 202.4 MB. Free memory was 181.5 MB in the beginning and 170.6 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.9 MB. Max. memory is 7.1 GB. [2020-08-22 03:48:36,166 INFO L168 Benchmark]: TraceAbstraction took 252.02 ms. Allocated memory is still 202.4 MB. Free memory was 170.0 MB in the beginning and 158.4 MB in the end (delta: 11.5 MB). Peak memory consumption was 11.5 MB. Max. memory is 7.1 GB. [2020-08-22 03:48:36,169 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 140.5 MB. Free memory was 122.1 MB in the beginning and 121.9 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 261.38 ms. Allocated memory is still 140.5 MB. Free memory was 102.9 MB in the beginning and 93.5 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 100.51 ms. Allocated memory was 140.5 MB in the beginning and 202.4 MB in the end (delta: 61.9 MB). Free memory was 93.5 MB in the beginning and 181.5 MB in the end (delta: -88.1 MB). Peak memory consumption was 13.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 221.86 ms. Allocated memory is still 202.4 MB. Free memory was 181.5 MB in the beginning and 170.6 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 252.02 ms. Allocated memory is still 202.4 MB. Free memory was 170.0 MB in the beginning and 158.4 MB in the end (delta: 11.5 MB). Peak memory consumption was 11.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 25]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L5] unsigned short int allbits = -1; [L6] short int signedallbits = allbits; [L7] int unsignedtosigned = allbits; [L8] unsigned int unsignedtounsigned = allbits; [L9] int signedtosigned = signedallbits; [L10] unsigned int signedtounsigned = signedallbits; [L19-L20] COND TRUE unsignedtosigned == 65535 && unsignedtounsigned == 65535 && signedtosigned == -1 && signedtounsigned == 4294967295 [L25] __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 proved your program to be incorrect! Received shutdown request...