/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=0.8 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/ldv-regression/oomInt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-177f698 [2020-08-22 01:26:03,112 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-22 01:26:03,115 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-22 01:26:03,151 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-22 01:26:03,153 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-22 01:26:03,161 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-22 01:26:03,163 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-22 01:26:03,166 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-22 01:26:03,168 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-22 01:26:03,171 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-22 01:26:03,172 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-22 01:26:03,173 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-22 01:26:03,173 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-22 01:26:03,175 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-22 01:26:03,178 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-22 01:26:03,179 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-22 01:26:03,181 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-22 01:26:03,181 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-22 01:26:03,183 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-22 01:26:03,190 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-22 01:26:03,192 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-22 01:26:03,193 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-22 01:26:03,194 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-22 01:26:03,195 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-22 01:26:03,207 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-22 01:26:03,207 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-22 01:26:03,207 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-22 01:26:03,213 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-22 01:26:03,214 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-22 01:26:03,215 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-08-22 01:26:03,215 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-22 01:26:03,216 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-22 01:26:03,216 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-22 01:26:03,222 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-22 01:26:03,223 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-22 01:26:03,223 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-22 01:26:03,224 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-22 01:26:03,224 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-22 01:26:03,224 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-22 01:26:03,225 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-22 01:26:03,226 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-22 01:26:03,227 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 01:26:03,263 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-22 01:26:03,263 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-22 01:26:03,265 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-22 01:26:03,266 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-22 01:26:03,266 INFO L138 SettingsManager]: * Use SBE=true [2020-08-22 01:26:03,266 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-22 01:26:03,266 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-22 01:26:03,266 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-22 01:26:03,267 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-22 01:26:03,267 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-22 01:26:03,268 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-22 01:26:03,268 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-22 01:26:03,268 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-22 01:26:03,268 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-22 01:26:03,269 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-22 01:26:03,269 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-22 01:26:03,269 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-22 01:26:03,269 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-22 01:26:03,269 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-22 01:26:03,270 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-22 01:26:03,270 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-22 01:26:03,270 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-22 01:26:03,270 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-22 01:26:03,270 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-22 01:26:03,271 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-22 01:26:03,271 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-22 01:26:03,271 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-22 01:26:03,271 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-22 01:26:03,271 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-22 01:26:03,271 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=0.8;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=0.8;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=0.8;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=0.8;log-additional-information=true; [2020-08-22 01:26:03,631 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-22 01:26:03,651 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-22 01:26:03,654 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-22 01:26:03,656 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-22 01:26:03,656 INFO L275 PluginConnector]: CDTParser initialized [2020-08-22 01:26:03,657 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/oomInt.i [2020-08-22 01:26:03,737 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/54d974657/f5b4ca594379449abf71c8c33190d09b/FLAG3845da137 [2020-08-22 01:26:04,299 INFO L306 CDTParser]: Found 1 translation units. [2020-08-22 01:26:04,300 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-regression/oomInt.i [2020-08-22 01:26:04,308 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/54d974657/f5b4ca594379449abf71c8c33190d09b/FLAG3845da137 [2020-08-22 01:26:04,674 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/54d974657/f5b4ca594379449abf71c8c33190d09b [2020-08-22 01:26:04,685 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-22 01:26:04,687 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-22 01:26:04,688 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-22 01:26:04,688 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-22 01:26:04,692 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-22 01:26:04,693 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 01:26:04" (1/1) ... [2020-08-22 01:26:04,696 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@497db09e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 01:26:04, skipping insertion in model container [2020-08-22 01:26:04,696 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 01:26:04" (1/1) ... [2020-08-22 01:26:04,705 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-22 01:26:04,725 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-22 01:26:04,890 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 01:26:04,895 INFO L203 MainTranslator]: Completed pre-run [2020-08-22 01:26:04,911 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 01:26:04,927 INFO L208 MainTranslator]: Completed translation [2020-08-22 01:26:04,927 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 01:26:04 WrapperNode [2020-08-22 01:26:04,927 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-22 01:26:04,928 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-22 01:26:04,928 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-22 01:26:04,928 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-22 01:26:04,943 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 01:26:04" (1/1) ... [2020-08-22 01:26:04,944 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 01:26:04" (1/1) ... [2020-08-22 01:26:05,048 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 01:26:04" (1/1) ... [2020-08-22 01:26:05,049 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 01:26:04" (1/1) ... [2020-08-22 01:26:05,054 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 01:26:04" (1/1) ... [2020-08-22 01:26:05,057 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 01:26:04" (1/1) ... [2020-08-22 01:26:05,058 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 01:26:04" (1/1) ... [2020-08-22 01:26:05,059 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-22 01:26:05,060 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-22 01:26:05,060 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-22 01:26:05,060 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-22 01:26:05,061 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 01:26:04" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-22 01:26:05,135 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-22 01:26:05,136 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-22 01:26:05,137 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-08-22 01:26:05,137 INFO L138 BoogieDeclarations]: Found implementation of procedure abs_int [2020-08-22 01:26:05,137 INFO L138 BoogieDeclarations]: Found implementation of procedure firstFunction [2020-08-22 01:26:05,138 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-22 01:26:05,138 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-22 01:26:05,138 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-08-22 01:26:05,139 INFO L130 BoogieDeclarations]: Found specification of procedure abs_int [2020-08-22 01:26:05,140 INFO L130 BoogieDeclarations]: Found specification of procedure firstFunction [2020-08-22 01:26:05,140 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-22 01:26:05,140 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-22 01:26:05,140 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-22 01:26:05,297 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-22 01:26:05,297 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-08-22 01:26:05,302 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 01:26:05 BoogieIcfgContainer [2020-08-22 01:26:05,302 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-22 01:26:05,303 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-22 01:26:05,304 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-22 01:26:05,307 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-22 01:26:05,307 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.08 01:26:04" (1/3) ... [2020-08-22 01:26:05,308 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2051a67 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 01:26:05, skipping insertion in model container [2020-08-22 01:26:05,309 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 01:26:04" (2/3) ... [2020-08-22 01:26:05,309 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2051a67 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 01:26:05, skipping insertion in model container [2020-08-22 01:26:05,309 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 01:26:05" (3/3) ... [2020-08-22 01:26:05,311 INFO L109 eAbstractionObserver]: Analyzing ICFG oomInt.i [2020-08-22 01:26:05,323 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-22 01:26:05,331 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-22 01:26:05,347 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-22 01:26:05,413 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-22 01:26:05,414 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-22 01:26:05,414 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-22 01:26:05,414 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-22 01:26:05,414 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-22 01:26:05,414 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-22 01:26:05,415 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-22 01:26:05,415 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-22 01:26:05,437 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states. [2020-08-22 01:26:05,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-08-22 01:26:05,446 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 01:26:05,447 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 01:26:05,448 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 01:26:05,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 01:26:05,455 INFO L82 PathProgramCache]: Analyzing trace with hash -1310527286, now seen corresponding path program 1 times [2020-08-22 01:26:05,469 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 01:26:05,470 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1633319635] [2020-08-22 01:26:05,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 01:26:05,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:26:05,713 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 01:26:05,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:26:05,720 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 01:26:05,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:26:05,799 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 01:26:05,800 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1633319635] [2020-08-22 01:26:05,802 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 01:26:05,803 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-08-22 01:26:05,804 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2065344365] [2020-08-22 01:26:05,810 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-22 01:26:05,811 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 01:26:05,821 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-22 01:26:05,822 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2020-08-22 01:26:05,824 INFO L87 Difference]: Start difference. First operand 25 states. Second operand 9 states. [2020-08-22 01:26:06,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 01:26:06,055 INFO L93 Difference]: Finished difference Result 33 states and 33 transitions. [2020-08-22 01:26:06,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-08-22 01:26:06,057 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 16 [2020-08-22 01:26:06,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 01:26:06,066 INFO L225 Difference]: With dead ends: 33 [2020-08-22 01:26:06,066 INFO L226 Difference]: Without dead ends: 0 [2020-08-22 01:26:06,070 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2020-08-22 01:26:06,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-08-22 01:26:06,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-08-22 01:26:06,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-08-22 01:26:06,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-08-22 01:26:06,100 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 16 [2020-08-22 01:26:06,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 01:26:06,101 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-08-22 01:26:06,101 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-22 01:26:06,101 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-08-22 01:26:06,101 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-08-22 01:26:06,102 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-22 01:26:06,104 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-08-22 01:26:06,142 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-08-22 01:26:06,142 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (= ~p~0 |old(~p~0)|) [2020-08-22 01:26:06,143 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-08-22 01:26:06,143 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-08-22 01:26:06,143 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-08-22 01:26:06,143 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-08-22 01:26:06,143 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-08-22 01:26:06,144 INFO L268 CegarLoopResult]: For program point abs_intEXIT(lines 16 25) no Hoare annotation was computed. [2020-08-22 01:26:06,144 INFO L271 CegarLoopResult]: At program point abs_intENTRY(lines 16 25) the Hoare annotation is: true [2020-08-22 01:26:06,144 INFO L268 CegarLoopResult]: For program point L18(lines 18 24) no Hoare annotation was computed. [2020-08-22 01:26:06,144 INFO L268 CegarLoopResult]: For program point abs_intFINAL(lines 16 25) no Hoare annotation was computed. [2020-08-22 01:26:06,144 INFO L264 CegarLoopResult]: At program point L30(line 30) the Hoare annotation is: (<= 1 ~p~0) [2020-08-22 01:26:06,145 INFO L268 CegarLoopResult]: For program point L29(line 29) no Hoare annotation was computed. [2020-08-22 01:26:06,145 INFO L264 CegarLoopResult]: At program point firstFunctionENTRY(lines 27 31) the Hoare annotation is: (= ~p~0 |old(~p~0)|) [2020-08-22 01:26:06,145 INFO L268 CegarLoopResult]: For program point firstFunctionFINAL(lines 27 31) no Hoare annotation was computed. [2020-08-22 01:26:06,145 INFO L268 CegarLoopResult]: For program point firstFunctionEXIT(lines 27 31) no Hoare annotation was computed. [2020-08-22 01:26:06,145 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 33 36) the Hoare annotation is: (= ~p~0 |old(~p~0)|) [2020-08-22 01:26:06,145 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 33 36) no Hoare annotation was computed. [2020-08-22 01:26:06,146 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 33 36) no Hoare annotation was computed. [2020-08-22 01:26:06,146 INFO L271 CegarLoopResult]: At program point __VERIFIER_assertENTRY(lines 6 12) the Hoare annotation is: true [2020-08-22 01:26:06,146 INFO L268 CegarLoopResult]: For program point L10(line 10) no Hoare annotation was computed. [2020-08-22 01:26:06,146 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertEXIT(lines 6 12) no Hoare annotation was computed. [2020-08-22 01:26:06,146 INFO L268 CegarLoopResult]: For program point L8(lines 8 11) no Hoare annotation was computed. [2020-08-22 01:26:06,146 INFO L268 CegarLoopResult]: For program point L8-2(lines 6 12) no Hoare annotation was computed. [2020-08-22 01:26:06,147 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 10) no Hoare annotation was computed. [2020-08-22 01:26:06,153 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.08 01:26:06 BoogieIcfgContainer [2020-08-22 01:26:06,154 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-08-22 01:26:06,157 INFO L168 Benchmark]: Toolchain (without parser) took 1469.19 ms. Allocated memory was 138.9 MB in the beginning and 201.3 MB in the end (delta: 62.4 MB). Free memory was 102.5 MB in the beginning and 116.2 MB in the end (delta: -13.7 MB). Peak memory consumption was 48.7 MB. Max. memory is 7.1 GB. [2020-08-22 01:26:06,158 INFO L168 Benchmark]: CDTParser took 0.83 ms. Allocated memory is still 138.9 MB. Free memory was 120.5 MB in the beginning and 120.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-08-22 01:26:06,159 INFO L168 Benchmark]: CACSL2BoogieTranslator took 239.99 ms. Allocated memory is still 138.9 MB. Free memory was 102.3 MB in the beginning and 93.0 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.3 MB. Max. memory is 7.1 GB. [2020-08-22 01:26:06,160 INFO L168 Benchmark]: Boogie Preprocessor took 131.06 ms. Allocated memory was 138.9 MB in the beginning and 201.3 MB in the end (delta: 62.4 MB). Free memory was 93.0 MB in the beginning and 180.5 MB in the end (delta: -87.5 MB). Peak memory consumption was 13.0 MB. Max. memory is 7.1 GB. [2020-08-22 01:26:06,161 INFO L168 Benchmark]: RCFGBuilder took 242.45 ms. Allocated memory is still 201.3 MB. Free memory was 180.5 MB in the beginning and 168.5 MB in the end (delta: 12.0 MB). Peak memory consumption was 12.0 MB. Max. memory is 7.1 GB. [2020-08-22 01:26:06,162 INFO L168 Benchmark]: TraceAbstraction took 850.40 ms. Allocated memory is still 201.3 MB. Free memory was 167.8 MB in the beginning and 116.2 MB in the end (delta: 51.6 MB). Peak memory consumption was 51.6 MB. Max. memory is 7.1 GB. [2020-08-22 01:26:06,166 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.83 ms. Allocated memory is still 138.9 MB. Free memory was 120.5 MB in the beginning and 120.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 239.99 ms. Allocated memory is still 138.9 MB. Free memory was 102.3 MB in the beginning and 93.0 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 131.06 ms. Allocated memory was 138.9 MB in the beginning and 201.3 MB in the end (delta: 62.4 MB). Free memory was 93.0 MB in the beginning and 180.5 MB in the end (delta: -87.5 MB). Peak memory consumption was 13.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 242.45 ms. Allocated memory is still 201.3 MB. Free memory was 180.5 MB in the beginning and 168.5 MB in the end (delta: 12.0 MB). Peak memory consumption was 12.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 850.40 ms. Allocated memory is still 201.3 MB. Free memory was 167.8 MB in the beginning and 116.2 MB in the end (delta: 51.6 MB). Peak memory consumption was 51.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 10]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 25 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 0.6s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 16 SDtfs, 24 SDslu, 71 SDs, 0 SdLazy, 58 SolverSat, 5 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 16 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=25occurred 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: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 8 LocationsWithAnnotation, 8 PreInvPairs, 8 NumberOfFragments, 16 HoareAnnotationTreeSize, 8 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 8 FomulaSimplificationsInter, 20 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 16 NumberOfCodeBlocks, 16 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 15 ConstructedInterpolants, 0 QuantifiedInterpolants, 795 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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 correct! Received shutdown request...