/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc config/AutomizerReach.xml -s config/svcomp-Reach-64bit-Automizer_Default.epf -i ../sv-benchmarks/c/bitvector-regression/implicitunsignedconversion-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-bitabs-dcfa08f [2020-12-23 01:39:40,085 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-23 01:39:40,089 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-23 01:39:40,125 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-23 01:39:40,126 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-23 01:39:40,127 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-23 01:39:40,129 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-23 01:39:40,132 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-23 01:39:40,134 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-23 01:39:40,135 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-23 01:39:40,137 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-23 01:39:40,139 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-23 01:39:40,139 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-23 01:39:40,141 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-23 01:39:40,142 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-23 01:39:40,144 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-23 01:39:40,148 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-23 01:39:40,149 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-23 01:39:40,154 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-23 01:39:40,159 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-23 01:39:40,162 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-23 01:39:40,165 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-23 01:39:40,167 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-23 01:39:40,168 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-23 01:39:40,183 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-23 01:39:40,184 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-23 01:39:40,184 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-23 01:39:40,185 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-23 01:39:40,186 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-23 01:39:40,187 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-23 01:39:40,187 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-23 01:39:40,188 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-23 01:39:40,189 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-23 01:39:40,190 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-23 01:39:40,191 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-23 01:39:40,192 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-23 01:39:40,193 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-23 01:39:40,193 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-23 01:39:40,193 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-23 01:39:40,195 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-23 01:39:40,195 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-23 01:39:40,196 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-23 01:39:40,224 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-23 01:39:40,225 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-23 01:39:40,226 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-23 01:39:40,227 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-23 01:39:40,227 INFO L138 SettingsManager]: * Use SBE=true [2020-12-23 01:39:40,227 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-23 01:39:40,228 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-23 01:39:40,228 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-23 01:39:40,228 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-23 01:39:40,229 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-23 01:39:40,229 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-23 01:39:40,229 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-23 01:39:40,229 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-23 01:39:40,230 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-23 01:39:40,230 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-23 01:39:40,230 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-23 01:39:40,231 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-23 01:39:40,231 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-23 01:39:40,231 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-23 01:39:40,231 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-23 01:39:40,232 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-23 01:39:40,232 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-23 01:39:40,232 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-23 01:39:40,232 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-23 01:39:40,233 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-23 01:39:40,233 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-bitabs/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-23 01:39:40,697 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-23 01:39:40,726 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-23 01:39:40,729 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-23 01:39:40,730 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-23 01:39:40,731 INFO L275 PluginConnector]: CDTParser initialized [2020-12-23 01:39:40,732 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/bitvector-regression/implicitunsignedconversion-1.c [2020-12-23 01:39:40,818 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/eee5eeb3a/2bc6cf4666544defb2521289fa7db5cc/FLAG96f97b850 [2020-12-23 01:39:41,487 INFO L306 CDTParser]: Found 1 translation units. [2020-12-23 01:39:41,488 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/bitvector-regression/implicitunsignedconversion-1.c [2020-12-23 01:39:41,497 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/eee5eeb3a/2bc6cf4666544defb2521289fa7db5cc/FLAG96f97b850 [2020-12-23 01:39:41,529 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/eee5eeb3a/2bc6cf4666544defb2521289fa7db5cc [2020-12-23 01:39:41,533 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-23 01:39:41,540 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-23 01:39:41,545 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-23 01:39:41,546 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-23 01:39:41,550 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-23 01:39:41,551 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 01:39:41" (1/1) ... [2020-12-23 01:39:41,553 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@252f7ee9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:39:41, skipping insertion in model container [2020-12-23 01:39:41,553 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 01:39:41" (1/1) ... [2020-12-23 01:39:41,563 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-23 01:39:41,581 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-23 01:39:41,829 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/bitvector-regression/implicitunsignedconversion-1.c[417,430] [2020-12-23 01:39:41,835 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-23 01:39:41,852 INFO L203 MainTranslator]: Completed pre-run [2020-12-23 01:39:41,869 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/bitvector-regression/implicitunsignedconversion-1.c[417,430] [2020-12-23 01:39:41,870 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-23 01:39:41,887 INFO L208 MainTranslator]: Completed translation [2020-12-23 01:39:41,887 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:39:41 WrapperNode [2020-12-23 01:39:41,888 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-23 01:39:41,890 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-23 01:39:41,890 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-23 01:39:41,891 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-23 01:39:41,900 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:39:41" (1/1) ... [2020-12-23 01:39:41,909 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:39:41" (1/1) ... [2020-12-23 01:39:41,928 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-23 01:39:41,933 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-23 01:39:41,933 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-23 01:39:41,933 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-23 01:39:41,945 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:39:41" (1/1) ... [2020-12-23 01:39:41,945 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:39:41" (1/1) ... [2020-12-23 01:39:41,947 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:39:41" (1/1) ... [2020-12-23 01:39:41,948 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:39:41" (1/1) ... [2020-12-23 01:39:41,953 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:39:41" (1/1) ... [2020-12-23 01:39:41,957 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:39:41" (1/1) ... [2020-12-23 01:39:41,959 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:39:41" (1/1) ... [2020-12-23 01:39:41,966 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-23 01:39:41,968 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-23 01:39:41,968 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-23 01:39:41,968 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-23 01:39:41,970 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:39:41" (1/1) ... No working directory specified, using /storage/repos/ultimate-bitabs/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 [2020-12-23 01:39:42,096 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-23 01:39:42,096 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-23 01:39:42,096 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-23 01:39:42,097 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-23 01:39:42,400 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-23 01:39:42,402 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2020-12-23 01:39:42,405 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 01:39:42 BoogieIcfgContainer [2020-12-23 01:39:42,405 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-23 01:39:42,409 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-23 01:39:42,410 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-23 01:39:42,415 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-23 01:39:42,416 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.12 01:39:41" (1/3) ... [2020-12-23 01:39:42,417 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67f828e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 01:39:42, skipping insertion in model container [2020-12-23 01:39:42,417 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:39:41" (2/3) ... [2020-12-23 01:39:42,418 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67f828e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 01:39:42, skipping insertion in model container [2020-12-23 01:39:42,418 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 01:39:42" (3/3) ... [2020-12-23 01:39:42,420 INFO L111 eAbstractionObserver]: Analyzing ICFG implicitunsignedconversion-1.c [2020-12-23 01:39:42,427 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-23 01:39:42,432 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-23 01:39:42,456 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-23 01:39:42,494 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-23 01:39:42,494 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-23 01:39:42,494 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-23 01:39:42,495 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-23 01:39:42,495 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-23 01:39:42,495 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-23 01:39:42,495 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-23 01:39:42,495 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-23 01:39:42,511 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states. [2020-12-23 01:39:42,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-12-23 01:39:42,517 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 01:39:42,518 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-12-23 01:39:42,518 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 01:39:42,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 01:39:42,539 INFO L82 PathProgramCache]: Analyzing trace with hash 925607, now seen corresponding path program 1 times [2020-12-23 01:39:42,550 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 01:39:42,550 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1013445501] [2020-12-23 01:39:42,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 01:39:42,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-23 01:39:42,728 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-23 01:39:42,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-23 01:39:42,782 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-23 01:39:42,813 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-23 01:39:42,814 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-12-23 01:39:42,814 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-23 01:39:42,842 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.12 01:39:42 BoogieIcfgContainer [2020-12-23 01:39:42,842 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-23 01:39:42,844 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-23 01:39:42,844 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-23 01:39:42,845 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-23 01:39:42,845 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 01:39:42" (3/4) ... [2020-12-23 01:39:42,847 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-12-23 01:39:42,900 INFO L141 WitnessManager]: Wrote witness to /storage/repos/svcomp/c/bitvector-regression/implicitunsignedconversion-1.c-witness.graphml [2020-12-23 01:39:42,901 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-23 01:39:42,905 INFO L168 Benchmark]: Toolchain (without parser) took 1365.25 ms. Allocated memory is still 165.7 MB. Free memory was 140.9 MB in the beginning and 139.8 MB in the end (delta: 1.1 MB). Peak memory consumption was 789.2 kB. Max. memory is 8.0 GB. [2020-12-23 01:39:42,906 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 165.7 MB. Free memory is still 139.2 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-12-23 01:39:42,907 INFO L168 Benchmark]: CACSL2BoogieTranslator took 343.08 ms. Allocated memory is still 165.7 MB. Free memory was 140.7 MB in the beginning and 131.6 MB in the end (delta: 9.1 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. [2020-12-23 01:39:42,910 INFO L168 Benchmark]: Boogie Procedure Inliner took 39.35 ms. Allocated memory is still 165.7 MB. Free memory was 131.6 MB in the beginning and 130.3 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-12-23 01:39:42,911 INFO L168 Benchmark]: Boogie Preprocessor took 33.21 ms. Allocated memory is still 165.7 MB. Free memory was 130.3 MB in the beginning and 129.5 MB in the end (delta: 842.4 kB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-12-23 01:39:42,917 INFO L168 Benchmark]: RCFGBuilder took 437.15 ms. Allocated memory is still 165.7 MB. Free memory was 129.4 MB in the beginning and 119.4 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. [2020-12-23 01:39:42,918 INFO L168 Benchmark]: TraceAbstraction took 432.92 ms. Allocated memory is still 165.7 MB. Free memory was 118.9 MB in the beginning and 141.3 MB in the end (delta: -22.4 MB). There was no memory consumed. Max. memory is 8.0 GB. [2020-12-23 01:39:42,919 INFO L168 Benchmark]: Witness Printer took 56.58 ms. Allocated memory is still 165.7 MB. Free memory was 141.3 MB in the beginning and 139.8 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-12-23 01:39:42,934 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 165.7 MB. Free memory is still 139.2 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 343.08 ms. Allocated memory is still 165.7 MB. Free memory was 140.7 MB in the beginning and 131.6 MB in the end (delta: 9.1 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 39.35 ms. Allocated memory is still 165.7 MB. Free memory was 131.6 MB in the beginning and 130.3 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 33.21 ms. Allocated memory is still 165.7 MB. Free memory was 130.3 MB in the beginning and 129.5 MB in the end (delta: 842.4 kB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 437.15 ms. Allocated memory is still 165.7 MB. Free memory was 129.4 MB in the beginning and 119.4 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. * TraceAbstraction took 432.92 ms. Allocated memory is still 165.7 MB. Free memory was 118.9 MB in the beginning and 141.3 MB in the end (delta: -22.4 MB). There was no memory consumed. Max. memory is 8.0 GB. * Witness Printer took 56.58 ms. Allocated memory is still 165.7 MB. Free memory was 141.3 MB in the beginning and 139.8 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 14]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L6] unsigned int plus_one = 1; [L7] int minus_one = -1; [L9] COND TRUE plus_one < minus_one [L14] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 8 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.3s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=8occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...