/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=5 --traceabstraction.additional.smt.options interpolation-heuristic=SHALLOWEST -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/bitvector-regression/implicitunsignedconversion-1.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-5644d1e-m [2020-08-18 20:15:43,450 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-18 20:15:43,453 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-18 20:15:43,493 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-18 20:15:43,493 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-18 20:15:43,502 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-18 20:15:43,504 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-18 20:15:43,508 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-18 20:15:43,510 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-18 20:15:43,514 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-18 20:15:43,515 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-18 20:15:43,516 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-18 20:15:43,516 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-18 20:15:43,519 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-18 20:15:43,521 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-18 20:15:43,522 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-18 20:15:43,523 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-18 20:15:43,525 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-18 20:15:43,526 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-18 20:15:43,534 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-18 20:15:43,536 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-18 20:15:43,537 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-18 20:15:43,538 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-18 20:15:43,539 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-18 20:15:43,551 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-18 20:15:43,551 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-18 20:15:43,551 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-18 20:15:43,552 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-18 20:15:43,552 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-18 20:15:43,554 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-08-18 20:15:43,554 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-18 20:15:43,555 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-18 20:15:43,555 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-18 20:15:43,557 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-18 20:15:43,558 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-18 20:15:43,559 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-18 20:15:43,559 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-18 20:15:43,559 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-18 20:15:43,560 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-18 20:15:43,561 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-18 20:15:43,562 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-18 20:15:43,562 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 [2020-08-18 20:15:43,601 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-18 20:15:43,601 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-18 20:15:43,603 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-18 20:15:43,603 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-18 20:15:43,603 INFO L138 SettingsManager]: * Use SBE=true [2020-08-18 20:15:43,604 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-18 20:15:43,604 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-18 20:15:43,604 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-18 20:15:43,604 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-18 20:15:43,604 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-18 20:15:43,605 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-18 20:15:43,605 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-18 20:15:43,606 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-18 20:15:43,606 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-18 20:15:43,606 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-18 20:15:43,606 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-18 20:15:43,607 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-18 20:15:43,607 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-18 20:15:43,607 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-18 20:15:43,607 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-18 20:15:43,607 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-18 20:15:43,608 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-18 20:15:43,608 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-18 20:15:43,608 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-18 20:15:43,608 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-18 20:15:43,608 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-18 20:15:43,608 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-18 20:15:43,609 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-18 20:15:43,609 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-18 20:15:43,609 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=5;interpolation-heuristic=SHALLOWEST; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5;interpolation-heuristic=SHALLOWEST; [2020-08-18 20:15:43,899 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-18 20:15:43,914 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-18 20:15:43,920 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-18 20:15:43,922 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-18 20:15:43,923 INFO L275 PluginConnector]: CDTParser initialized [2020-08-18 20:15:43,924 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/bitvector-regression/implicitunsignedconversion-1.c [2020-08-18 20:15:43,984 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/886dccc9a/309215e6546c457eadd31e88d7081e18/FLAG0c130ab28 [2020-08-18 20:15:44,378 INFO L306 CDTParser]: Found 1 translation units. [2020-08-18 20:15:44,379 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/bitvector-regression/implicitunsignedconversion-1.c [2020-08-18 20:15:44,385 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/886dccc9a/309215e6546c457eadd31e88d7081e18/FLAG0c130ab28 [2020-08-18 20:15:44,753 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/886dccc9a/309215e6546c457eadd31e88d7081e18 [2020-08-18 20:15:44,760 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-18 20:15:44,762 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-18 20:15:44,764 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-18 20:15:44,764 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-18 20:15:44,767 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-18 20:15:44,768 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.08 08:15:44" (1/1) ... [2020-08-18 20:15:44,772 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5a9d0f3e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 08:15:44, skipping insertion in model container [2020-08-18 20:15:44,772 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.08 08:15:44" (1/1) ... [2020-08-18 20:15:44,779 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-18 20:15:44,796 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-18 20:15:45,011 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-18 20:15:45,019 INFO L203 MainTranslator]: Completed pre-run [2020-08-18 20:15:45,035 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-18 20:15:45,049 INFO L208 MainTranslator]: Completed translation [2020-08-18 20:15:45,050 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 08:15:45 WrapperNode [2020-08-18 20:15:45,051 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-18 20:15:45,051 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-18 20:15:45,052 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-18 20:15:45,052 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-18 20:15:45,065 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 08:15:45" (1/1) ... [2020-08-18 20:15:45,067 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 08:15:45" (1/1) ... [2020-08-18 20:15:45,073 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 08:15:45" (1/1) ... [2020-08-18 20:15:45,073 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 08:15:45" (1/1) ... [2020-08-18 20:15:45,078 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 08:15:45" (1/1) ... [2020-08-18 20:15:45,080 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 08:15:45" (1/1) ... [2020-08-18 20:15:45,081 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 08:15:45" (1/1) ... [2020-08-18 20:15:45,082 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-18 20:15:45,083 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-18 20:15:45,083 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-18 20:15:45,083 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-18 20:15:45,084 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 08:15:45" (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 [2020-08-18 20:15:45,229 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-18 20:15:45,230 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-18 20:15:45,230 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-18 20:15:45,230 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-18 20:15:45,231 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-18 20:15:45,231 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-18 20:15:45,231 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-18 20:15:45,377 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-18 20:15:45,377 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-08-18 20:15:45,380 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.08 08:15:45 BoogieIcfgContainer [2020-08-18 20:15:45,381 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-18 20:15:45,382 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-18 20:15:45,382 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-18 20:15:45,385 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-18 20:15:45,386 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.08 08:15:44" (1/3) ... [2020-08-18 20:15:45,387 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36ab3efc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.08 08:15:45, skipping insertion in model container [2020-08-18 20:15:45,388 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 08:15:45" (2/3) ... [2020-08-18 20:15:45,388 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36ab3efc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.08 08:15:45, skipping insertion in model container [2020-08-18 20:15:45,388 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.08 08:15:45" (3/3) ... [2020-08-18 20:15:45,391 INFO L109 eAbstractionObserver]: Analyzing ICFG implicitunsignedconversion-1.c [2020-08-18 20:15:45,401 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-18 20:15:45,408 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-18 20:15:45,423 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-18 20:15:45,450 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-18 20:15:45,451 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-18 20:15:45,451 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-18 20:15:45,451 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-18 20:15:45,451 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-18 20:15:45,451 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-18 20:15:45,451 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-18 20:15:45,452 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-18 20:15:45,467 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states. [2020-08-18 20:15:45,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-08-18 20:15:45,472 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 20:15:45,473 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-08-18 20:15:45,473 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 20:15:45,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 20:15:45,478 INFO L82 PathProgramCache]: Analyzing trace with hash 408836530, now seen corresponding path program 1 times [2020-08-18 20:15:45,486 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 20:15:45,487 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1076215353] [2020-08-18 20:15:45,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 20:15:45,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-08-18 20:15:45,588 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-08-18 20:15:45,589 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-08-18 20:15:45,592 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-18 20:15:45,603 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.08 08:15:45 BoogieIcfgContainer [2020-08-18 20:15:45,603 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-08-18 20:15:45,606 INFO L168 Benchmark]: Toolchain (without parser) took 842.91 ms. Allocated memory was 140.5 MB in the beginning and 202.9 MB in the end (delta: 62.4 MB). Free memory was 104.1 MB in the beginning and 161.0 MB in the end (delta: -56.9 MB). Peak memory consumption was 5.5 MB. Max. memory is 7.1 GB. [2020-08-18 20:15:45,608 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 140.5 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-08-18 20:15:45,609 INFO L168 Benchmark]: CACSL2BoogieTranslator took 287.63 ms. Allocated memory is still 140.5 MB. Free memory was 103.7 MB in the beginning and 94.7 MB in the end (delta: 9.0 MB). Peak memory consumption was 9.0 MB. Max. memory is 7.1 GB. [2020-08-18 20:15:45,610 INFO L168 Benchmark]: Boogie Preprocessor took 31.11 ms. Allocated memory is still 140.5 MB. Free memory was 94.7 MB in the beginning and 93.4 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2020-08-18 20:15:45,611 INFO L168 Benchmark]: RCFGBuilder took 298.35 ms. Allocated memory was 140.5 MB in the beginning and 202.9 MB in the end (delta: 62.4 MB). Free memory was 93.4 MB in the beginning and 172.4 MB in the end (delta: -79.1 MB). Peak memory consumption was 12.5 MB. Max. memory is 7.1 GB. [2020-08-18 20:15:45,612 INFO L168 Benchmark]: TraceAbstraction took 220.90 ms. Allocated memory is still 202.9 MB. Free memory was 171.8 MB in the beginning and 161.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 7.1 GB. [2020-08-18 20:15:45,616 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 122.0 MB in the beginning and 121.8 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 287.63 ms. Allocated memory is still 140.5 MB. Free memory was 103.7 MB in the beginning and 94.7 MB in the end (delta: 9.0 MB). Peak memory consumption was 9.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 31.11 ms. Allocated memory is still 140.5 MB. Free memory was 94.7 MB in the beginning and 93.4 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 298.35 ms. Allocated memory was 140.5 MB in the beginning and 202.9 MB in the end (delta: 62.4 MB). Free memory was 93.4 MB in the beginning and 172.4 MB in the end (delta: -79.1 MB). Peak memory consumption was 12.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 220.90 ms. Allocated memory is still 202.9 MB. Free memory was 171.8 MB in the beginning and 161.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 12]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L4] unsigned int plus_one = 1; [L5] int minus_one = -1; [L7] COND TRUE plus_one < minus_one [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 proved your program to be incorrect! Received shutdown request...