/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=WIDESTAMONGSMALL --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/signextension-1.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-177f698 [2020-08-21 23:45:15,166 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-21 23:45:15,169 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-21 23:45:15,209 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-21 23:45:15,211 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-21 23:45:15,217 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-21 23:45:15,219 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-21 23:45:15,221 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-21 23:45:15,227 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-21 23:45:15,229 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-21 23:45:15,230 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-21 23:45:15,231 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-21 23:45:15,232 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-21 23:45:15,235 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-21 23:45:15,238 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-21 23:45:15,239 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-21 23:45:15,241 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-21 23:45:15,242 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-21 23:45:15,244 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-21 23:45:15,252 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-21 23:45:15,254 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-21 23:45:15,255 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-21 23:45:15,256 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-21 23:45:15,257 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-21 23:45:15,260 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-21 23:45:15,260 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-21 23:45:15,260 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-21 23:45:15,264 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-21 23:45:15,265 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-21 23:45:15,275 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-08-21 23:45:15,276 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-21 23:45:15,280 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-21 23:45:15,280 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-21 23:45:15,284 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-21 23:45:15,288 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-21 23:45:15,288 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-21 23:45:15,289 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-21 23:45:15,289 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-21 23:45:15,289 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-21 23:45:15,290 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-21 23:45:15,294 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-21 23:45:15,295 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 [2020-08-21 23:45:15,333 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-21 23:45:15,333 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-21 23:45:15,336 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-21 23:45:15,336 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-21 23:45:15,336 INFO L138 SettingsManager]: * Use SBE=true [2020-08-21 23:45:15,336 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-21 23:45:15,337 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-21 23:45:15,337 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-21 23:45:15,337 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-21 23:45:15,337 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-21 23:45:15,338 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-21 23:45:15,339 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-21 23:45:15,339 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-21 23:45:15,339 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-21 23:45:15,340 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-21 23:45:15,340 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-21 23:45:15,340 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-21 23:45:15,341 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-21 23:45:15,341 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-21 23:45:15,341 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-21 23:45:15,341 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-21 23:45:15,342 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-21 23:45:15,342 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-21 23:45:15,342 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-21 23:45:15,342 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-21 23:45:15,342 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-21 23:45:15,342 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-21 23:45:15,343 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-21 23:45:15,343 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-21 23:45:15,343 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=WIDESTAMONGSMALL;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=WIDESTAMONGSMALL;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=WIDESTAMONGSMALL;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=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true; [2020-08-21 23:45:15,641 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-21 23:45:15,656 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-21 23:45:15,660 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-21 23:45:15,661 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-21 23:45:15,662 INFO L275 PluginConnector]: CDTParser initialized [2020-08-21 23:45:15,663 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/bitvector-regression/signextension-1.c [2020-08-21 23:45:15,725 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/88f0a3953/6f56252be6ce4833a85ad142596d68ff/FLAGde5a41696 [2020-08-21 23:45:16,185 INFO L306 CDTParser]: Found 1 translation units. [2020-08-21 23:45:16,186 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/bitvector-regression/signextension-1.c [2020-08-21 23:45:16,193 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/88f0a3953/6f56252be6ce4833a85ad142596d68ff/FLAGde5a41696 [2020-08-21 23:45:16,511 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/88f0a3953/6f56252be6ce4833a85ad142596d68ff [2020-08-21 23:45:16,522 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-21 23:45:16,524 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-21 23:45:16,525 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-21 23:45:16,525 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-21 23:45:16,529 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-21 23:45:16,530 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.08 11:45:16" (1/1) ... [2020-08-21 23:45:16,535 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a0b5c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 11:45:16, skipping insertion in model container [2020-08-21 23:45:16,535 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.08 11:45:16" (1/1) ... [2020-08-21 23:45:16,544 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-21 23:45:16,562 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-21 23:45:16,726 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-21 23:45:16,731 INFO L203 MainTranslator]: Completed pre-run [2020-08-21 23:45:16,745 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-21 23:45:16,757 INFO L208 MainTranslator]: Completed translation [2020-08-21 23:45:16,758 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 11:45:16 WrapperNode [2020-08-21 23:45:16,758 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-21 23:45:16,759 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-21 23:45:16,759 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-21 23:45:16,759 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-21 23:45:16,770 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 11:45:16" (1/1) ... [2020-08-21 23:45:16,770 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 11:45:16" (1/1) ... [2020-08-21 23:45:16,775 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 11:45:16" (1/1) ... [2020-08-21 23:45:16,776 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 11:45:16" (1/1) ... [2020-08-21 23:45:16,779 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 11:45:16" (1/1) ... [2020-08-21 23:45:16,782 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 11:45:16" (1/1) ... [2020-08-21 23:45:16,783 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 11:45:16" (1/1) ... [2020-08-21 23:45:16,784 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-21 23:45:16,785 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-21 23:45:16,785 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-21 23:45:16,785 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-21 23:45:16,786 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 11:45:16" (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 [2020-08-21 23:45:16,936 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-21 23:45:16,937 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-21 23:45:16,937 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-21 23:45:16,937 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-21 23:45:16,937 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-21 23:45:16,937 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-21 23:45:16,938 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-21 23:45:17,099 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-21 23:45:17,099 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-08-21 23:45:17,102 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.08 11:45:17 BoogieIcfgContainer [2020-08-21 23:45:17,102 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-21 23:45:17,104 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-21 23:45:17,104 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-21 23:45:17,113 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-21 23:45:17,113 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.08 11:45:16" (1/3) ... [2020-08-21 23:45:17,114 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68a9c0fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.08 11:45:17, skipping insertion in model container [2020-08-21 23:45:17,114 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 11:45:16" (2/3) ... [2020-08-21 23:45:17,114 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68a9c0fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.08 11:45:17, skipping insertion in model container [2020-08-21 23:45:17,114 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.08 11:45:17" (3/3) ... [2020-08-21 23:45:17,116 INFO L109 eAbstractionObserver]: Analyzing ICFG signextension-1.c [2020-08-21 23:45:17,124 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-21 23:45:17,132 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-21 23:45:17,147 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-21 23:45:17,171 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-21 23:45:17,171 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-21 23:45:17,171 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-21 23:45:17,171 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-21 23:45:17,172 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-21 23:45:17,172 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-21 23:45:17,172 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-21 23:45:17,172 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-21 23:45:17,187 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states. [2020-08-21 23:45:17,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-08-21 23:45:17,193 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 23:45:17,194 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-08-21 23:45:17,195 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 23:45:17,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 23:45:17,200 INFO L82 PathProgramCache]: Analyzing trace with hash 408836530, now seen corresponding path program 1 times [2020-08-21 23:45:17,207 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 23:45:17,208 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [331580759] [2020-08-21 23:45:17,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 23:45:17,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-08-21 23:45:17,323 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-08-21 23:45:17,324 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-08-21 23:45:17,328 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-21 23:45:17,342 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.08 11:45:17 BoogieIcfgContainer [2020-08-21 23:45:17,342 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-08-21 23:45:17,345 INFO L168 Benchmark]: Toolchain (without parser) took 820.57 ms. Allocated memory was 140.5 MB in the beginning and 203.9 MB in the end (delta: 63.4 MB). Free memory was 104.0 MB in the beginning and 160.6 MB in the end (delta: -56.6 MB). Peak memory consumption was 6.8 MB. Max. memory is 7.1 GB. [2020-08-21 23:45:17,347 INFO L168 Benchmark]: CDTParser took 0.20 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. [2020-08-21 23:45:17,348 INFO L168 Benchmark]: CACSL2BoogieTranslator took 233.39 ms. Allocated memory is still 140.5 MB. Free memory was 103.8 MB in the beginning and 94.6 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.3 MB. Max. memory is 7.1 GB. [2020-08-21 23:45:17,349 INFO L168 Benchmark]: Boogie Preprocessor took 25.70 ms. Allocated memory is still 140.5 MB. Free memory was 94.6 MB in the beginning and 93.2 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. [2020-08-21 23:45:17,350 INFO L168 Benchmark]: RCFGBuilder took 317.62 ms. Allocated memory was 140.5 MB in the beginning and 203.9 MB in the end (delta: 63.4 MB). Free memory was 93.2 MB in the beginning and 172.7 MB in the end (delta: -79.5 MB). Peak memory consumption was 12.3 MB. Max. memory is 7.1 GB. [2020-08-21 23:45:17,351 INFO L168 Benchmark]: TraceAbstraction took 238.50 ms. Allocated memory is still 203.9 MB. Free memory was 172.0 MB in the beginning and 160.6 MB in the end (delta: 11.3 MB). Peak memory consumption was 11.3 MB. Max. memory is 7.1 GB. [2020-08-21 23:45:17,356 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 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 233.39 ms. Allocated memory is still 140.5 MB. Free memory was 103.8 MB in the beginning and 94.6 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 25.70 ms. Allocated memory is still 140.5 MB. Free memory was 94.6 MB in the beginning and 93.2 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 317.62 ms. Allocated memory was 140.5 MB in the beginning and 203.9 MB in the end (delta: 63.4 MB). Free memory was 93.2 MB in the beginning and 172.7 MB in the end (delta: -79.5 MB). Peak memory consumption was 12.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 238.50 ms. Allocated memory is still 203.9 MB. Free memory was 172.0 MB in the beginning and 160.6 MB in the end (delta: 11.3 MB). Peak memory consumption was 11.3 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...