/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=HIGHLEXORDER -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/ldv-regression/stateful_check.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-5644d1e-m [2020-08-18 19:30:43,169 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-18 19:30:43,171 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-18 19:30:43,201 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-18 19:30:43,201 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-18 19:30:43,204 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-18 19:30:43,212 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-18 19:30:43,215 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-18 19:30:43,218 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-18 19:30:43,219 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-18 19:30:43,220 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-18 19:30:43,221 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-18 19:30:43,221 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-18 19:30:43,225 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-18 19:30:43,226 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-18 19:30:43,227 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-18 19:30:43,228 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-18 19:30:43,229 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-18 19:30:43,233 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-18 19:30:43,240 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-18 19:30:43,242 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-18 19:30:43,244 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-18 19:30:43,247 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-18 19:30:43,247 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-18 19:30:43,258 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-18 19:30:43,258 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-18 19:30:43,258 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-18 19:30:43,259 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-18 19:30:43,259 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-18 19:30:43,264 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... 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[2020-08-18 19:30:43,270 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-18 19:30:43,271 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-18 19:30:43,272 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-18 19:30:43,273 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 19:30:43,311 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-18 19:30:43,312 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-18 19:30:43,314 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-18 19:30:43,314 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-18 19:30:43,314 INFO L138 SettingsManager]: * Use SBE=true [2020-08-18 19:30:43,314 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-18 19:30:43,315 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-18 19:30:43,315 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-18 19:30:43,315 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-18 19:30:43,315 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-18 19:30:43,316 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-18 19:30:43,316 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-18 19:30:43,316 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-18 19:30:43,317 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-18 19:30:43,317 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-18 19:30:43,317 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-18 19:30:43,318 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-18 19:30:43,318 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-18 19:30:43,318 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-18 19:30:43,318 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-18 19:30:43,318 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-18 19:30:43,319 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-18 19:30:43,319 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-18 19:30:43,319 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-18 19:30:43,319 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-18 19:30:43,319 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-18 19:30:43,320 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-18 19:30:43,320 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-18 19:30:43,320 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-18 19:30:43,320 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=HIGHLEXORDER; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5;interpolation-heuristic=HIGHLEXORDER; [2020-08-18 19:30:43,639 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-18 19:30:43,653 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-18 19:30:43,657 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-18 19:30:43,658 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-18 19:30:43,659 INFO L275 PluginConnector]: CDTParser initialized [2020-08-18 19:30:43,659 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/stateful_check.c [2020-08-18 19:30:43,735 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/05278a4bc/b97f2c4148ec4ee39b5ece8865667998/FLAG81bd4f416 [2020-08-18 19:30:44,195 INFO L306 CDTParser]: Found 1 translation units. [2020-08-18 19:30:44,196 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-regression/stateful_check.c [2020-08-18 19:30:44,203 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/05278a4bc/b97f2c4148ec4ee39b5ece8865667998/FLAG81bd4f416 [2020-08-18 19:30:44,576 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/05278a4bc/b97f2c4148ec4ee39b5ece8865667998 [2020-08-18 19:30:44,593 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-18 19:30:44,596 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-18 19:30:44,597 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-18 19:30:44,597 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-18 19:30:44,605 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-18 19:30:44,606 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.08 07:30:44" (1/1) ... [2020-08-18 19:30:44,610 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@742d25d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 07:30:44, skipping insertion in model container [2020-08-18 19:30:44,610 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.08 07:30:44" (1/1) ... [2020-08-18 19:30:44,618 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-18 19:30:44,638 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-18 19:30:44,851 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-18 19:30:44,856 INFO L203 MainTranslator]: Completed pre-run [2020-08-18 19:30:44,877 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-18 19:30:44,891 INFO L208 MainTranslator]: Completed translation [2020-08-18 19:30:44,892 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 07:30:44 WrapperNode [2020-08-18 19:30:44,892 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-18 19:30:44,893 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-18 19:30:44,893 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-18 19:30:44,893 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-18 19:30:44,985 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 07:30:44" (1/1) ... [2020-08-18 19:30:44,985 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 07:30:44" (1/1) ... [2020-08-18 19:30:44,993 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 07:30:44" (1/1) ... [2020-08-18 19:30:44,994 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 07:30:44" (1/1) ... [2020-08-18 19:30:45,000 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 07:30:44" (1/1) ... [2020-08-18 19:30:45,006 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 07:30:44" (1/1) ... [2020-08-18 19:30:45,007 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 07:30:44" (1/1) ... [2020-08-18 19:30:45,010 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-18 19:30:45,010 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-18 19:30:45,010 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-18 19:30:45,010 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-18 19:30:45,011 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 07:30:44" (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 19:30:45,061 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-18 19:30:45,061 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-18 19:30:45,061 INFO L138 BoogieDeclarations]: Found implementation of procedure __blast_assert [2020-08-18 19:30:45,061 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2020-08-18 19:30:45,061 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2020-08-18 19:30:45,062 INFO L138 BoogieDeclarations]: Found implementation of procedure check_final_state [2020-08-18 19:30:45,062 INFO L138 BoogieDeclarations]: Found implementation of procedure misc_release [2020-08-18 19:30:45,063 INFO L138 BoogieDeclarations]: Found implementation of procedure misc_llseek [2020-08-18 19:30:45,063 INFO L138 BoogieDeclarations]: Found implementation of procedure misc_read [2020-08-18 19:30:45,063 INFO L138 BoogieDeclarations]: Found implementation of procedure misc_open [2020-08-18 19:30:45,063 INFO L138 BoogieDeclarations]: Found implementation of procedure my_init [2020-08-18 19:30:45,064 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-18 19:30:45,064 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-18 19:30:45,064 INFO L130 BoogieDeclarations]: Found specification of procedure __blast_assert [2020-08-18 19:30:45,064 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-18 19:30:45,065 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2020-08-18 19:30:45,065 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2020-08-18 19:30:45,065 INFO L130 BoogieDeclarations]: Found specification of procedure check_final_state [2020-08-18 19:30:45,065 INFO L130 BoogieDeclarations]: Found specification of procedure misc_release [2020-08-18 19:30:45,066 INFO L130 BoogieDeclarations]: Found specification of procedure misc_llseek [2020-08-18 19:30:45,066 INFO L130 BoogieDeclarations]: Found specification of procedure misc_read [2020-08-18 19:30:45,066 INFO L130 BoogieDeclarations]: Found specification of procedure misc_open [2020-08-18 19:30:45,066 INFO L130 BoogieDeclarations]: Found specification of procedure my_init [2020-08-18 19:30:45,066 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-18 19:30:45,066 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-18 19:30:45,067 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-18 19:30:45,428 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-18 19:30:45,428 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-08-18 19:30:45,432 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.08 07:30:45 BoogieIcfgContainer [2020-08-18 19:30:45,433 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-18 19:30:45,434 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-18 19:30:45,434 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-18 19:30:45,437 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-18 19:30:45,437 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.08 07:30:44" (1/3) ... [2020-08-18 19:30:45,438 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18a30c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.08 07:30:45, skipping insertion in model container [2020-08-18 19:30:45,438 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 07:30:44" (2/3) ... [2020-08-18 19:30:45,439 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18a30c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.08 07:30:45, skipping insertion in model container [2020-08-18 19:30:45,439 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.08 07:30:45" (3/3) ... [2020-08-18 19:30:45,441 INFO L109 eAbstractionObserver]: Analyzing ICFG stateful_check.c [2020-08-18 19:30:45,452 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-18 19:30:45,459 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-18 19:30:45,474 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-18 19:30:45,503 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-18 19:30:45,503 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-18 19:30:45,503 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-18 19:30:45,503 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-18 19:30:45,503 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-18 19:30:45,503 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-18 19:30:45,503 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-18 19:30:45,504 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-18 19:30:45,522 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states. [2020-08-18 19:30:45,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-08-18 19:30:45,528 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 19:30:45,529 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 19:30:45,529 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 19:30:45,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 19:30:45,534 INFO L82 PathProgramCache]: Analyzing trace with hash 1865767033, now seen corresponding path program 1 times [2020-08-18 19:30:45,542 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 19:30:45,543 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1173422419] [2020-08-18 19:30:45,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 19:30:45,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 19:30:45,697 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 19:30:45,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 19:30:45,711 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 19:30:45,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 19:30:45,721 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-18 19:30:45,722 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1173422419] [2020-08-18 19:30:45,725 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 19:30:45,725 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-08-18 19:30:45,726 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [957733739] [2020-08-18 19:30:45,734 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-08-18 19:30:45,735 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 19:30:45,754 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-08-18 19:30:45,755 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-08-18 19:30:45,758 INFO L87 Difference]: Start difference. First operand 74 states. Second operand 4 states. [2020-08-18 19:30:45,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 19:30:45,995 INFO L93 Difference]: Finished difference Result 140 states and 185 transitions. [2020-08-18 19:30:45,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-08-18 19:30:45,998 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 16 [2020-08-18 19:30:45,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 19:30:46,012 INFO L225 Difference]: With dead ends: 140 [2020-08-18 19:30:46,012 INFO L226 Difference]: Without dead ends: 70 [2020-08-18 19:30:46,017 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-08-18 19:30:46,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2020-08-18 19:30:46,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 65. [2020-08-18 19:30:46,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65 states. [2020-08-18 19:30:46,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 80 transitions. [2020-08-18 19:30:46,071 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 80 transitions. Word has length 16 [2020-08-18 19:30:46,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 19:30:46,072 INFO L479 AbstractCegarLoop]: Abstraction has 65 states and 80 transitions. [2020-08-18 19:30:46,072 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-08-18 19:30:46,073 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 80 transitions. [2020-08-18 19:30:46,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-08-18 19:30:46,074 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 19:30:46,074 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 19:30:46,074 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-18 19:30:46,075 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 19:30:46,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 19:30:46,075 INFO L82 PathProgramCache]: Analyzing trace with hash 6927045, now seen corresponding path program 1 times [2020-08-18 19:30:46,075 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 19:30:46,076 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [397153136] [2020-08-18 19:30:46,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 19:30:46,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 19:30:46,138 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 19:30:46,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 19:30:46,181 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 19:30:46,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 19:30:46,190 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-18 19:30:46,191 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [397153136] [2020-08-18 19:30:46,191 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 19:30:46,191 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-08-18 19:30:46,191 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [694707157] [2020-08-18 19:30:46,193 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-08-18 19:30:46,194 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 19:30:46,194 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-08-18 19:30:46,194 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-08-18 19:30:46,194 INFO L87 Difference]: Start difference. First operand 65 states and 80 transitions. Second operand 5 states. [2020-08-18 19:30:46,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 19:30:46,435 INFO L93 Difference]: Finished difference Result 112 states and 143 transitions. [2020-08-18 19:30:46,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-08-18 19:30:46,436 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2020-08-18 19:30:46,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 19:30:46,439 INFO L225 Difference]: With dead ends: 112 [2020-08-18 19:30:46,439 INFO L226 Difference]: Without dead ends: 106 [2020-08-18 19:30:46,440 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-08-18 19:30:46,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2020-08-18 19:30:46,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 102. [2020-08-18 19:30:46,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 102 states. [2020-08-18 19:30:46,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 132 transitions. [2020-08-18 19:30:46,486 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 132 transitions. Word has length 17 [2020-08-18 19:30:46,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 19:30:46,487 INFO L479 AbstractCegarLoop]: Abstraction has 102 states and 132 transitions. [2020-08-18 19:30:46,487 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-08-18 19:30:46,487 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 132 transitions. [2020-08-18 19:30:46,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-08-18 19:30:46,488 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 19:30:46,489 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 19:30:46,489 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-18 19:30:46,489 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 19:30:46,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 19:30:46,490 INFO L82 PathProgramCache]: Analyzing trace with hash -695621135, now seen corresponding path program 1 times [2020-08-18 19:30:46,490 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 19:30:46,491 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [756434036] [2020-08-18 19:30:46,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 19:30:46,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 19:30:46,551 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 19:30:46,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 19:30:46,562 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 19:30:46,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 19:30:46,576 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-08-18 19:30:46,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 19:30:46,586 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-18 19:30:46,586 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [756434036] [2020-08-18 19:30:46,587 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 19:30:46,587 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-08-18 19:30:46,587 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1558759031] [2020-08-18 19:30:46,588 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-08-18 19:30:46,588 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 19:30:46,588 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-08-18 19:30:46,588 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-08-18 19:30:46,589 INFO L87 Difference]: Start difference. First operand 102 states and 132 transitions. Second operand 6 states. [2020-08-18 19:30:46,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 19:30:46,878 INFO L93 Difference]: Finished difference Result 253 states and 356 transitions. [2020-08-18 19:30:46,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-08-18 19:30:46,879 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 29 [2020-08-18 19:30:46,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 19:30:46,882 INFO L225 Difference]: With dead ends: 253 [2020-08-18 19:30:46,882 INFO L226 Difference]: Without dead ends: 162 [2020-08-18 19:30:46,884 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-08-18 19:30:46,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2020-08-18 19:30:46,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 126. [2020-08-18 19:30:46,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 126 states. [2020-08-18 19:30:46,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 169 transitions. [2020-08-18 19:30:46,904 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 169 transitions. Word has length 29 [2020-08-18 19:30:46,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 19:30:46,904 INFO L479 AbstractCegarLoop]: Abstraction has 126 states and 169 transitions. [2020-08-18 19:30:46,904 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-08-18 19:30:46,904 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 169 transitions. [2020-08-18 19:30:46,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2020-08-18 19:30:46,906 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 19:30:46,906 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 19:30:46,907 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-18 19:30:46,907 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 19:30:46,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 19:30:46,907 INFO L82 PathProgramCache]: Analyzing trace with hash -1328709660, now seen corresponding path program 1 times [2020-08-18 19:30:46,908 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 19:30:46,908 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [966229641] [2020-08-18 19:30:46,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 19:30:46,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 19:30:46,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 19:30:46,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 19:30:46,976 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 19:30:46,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 19:30:46,982 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-08-18 19:30:46,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 19:30:46,995 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-08-18 19:30:46,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 19:30:47,002 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-18 19:30:47,003 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [966229641] [2020-08-18 19:30:47,003 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-18 19:30:47,003 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-08-18 19:30:47,003 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [264904873] [2020-08-18 19:30:47,004 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-08-18 19:30:47,004 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 19:30:47,004 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-08-18 19:30:47,005 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-08-18 19:30:47,005 INFO L87 Difference]: Start difference. First operand 126 states and 169 transitions. Second operand 7 states. [2020-08-18 19:30:47,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 19:30:47,275 INFO L93 Difference]: Finished difference Result 350 states and 513 transitions. [2020-08-18 19:30:47,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-08-18 19:30:47,276 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 40 [2020-08-18 19:30:47,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 19:30:47,279 INFO L225 Difference]: With dead ends: 350 [2020-08-18 19:30:47,280 INFO L226 Difference]: Without dead ends: 235 [2020-08-18 19:30:47,282 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2020-08-18 19:30:47,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 235 states. [2020-08-18 19:30:47,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 235 to 150. [2020-08-18 19:30:47,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 150 states. [2020-08-18 19:30:47,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 208 transitions. [2020-08-18 19:30:47,304 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 208 transitions. Word has length 40 [2020-08-18 19:30:47,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 19:30:47,305 INFO L479 AbstractCegarLoop]: Abstraction has 150 states and 208 transitions. [2020-08-18 19:30:47,305 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-08-18 19:30:47,305 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 208 transitions. [2020-08-18 19:30:47,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-08-18 19:30:47,307 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 19:30:47,307 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 19:30:47,308 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-18 19:30:47,308 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 19:30:47,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 19:30:47,309 INFO L82 PathProgramCache]: Analyzing trace with hash 1520942249, now seen corresponding path program 1 times [2020-08-18 19:30:47,309 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 19:30:47,309 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1002774808] [2020-08-18 19:30:47,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 19:30:47,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 19:30:47,408 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 19:30:47,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 19:30:47,422 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 19:30:47,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 19:30:47,434 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-08-18 19:30:47,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 19:30:47,444 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-08-18 19:30:47,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 19:30:47,462 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-08-18 19:30:47,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 19:30:47,473 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-18 19:30:47,473 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1002774808] [2020-08-18 19:30:47,474 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-18 19:30:47,474 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-08-18 19:30:47,475 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [259284852] [2020-08-18 19:30:47,476 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-18 19:30:47,476 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 19:30:47,476 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-18 19:30:47,476 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-08-18 19:30:47,477 INFO L87 Difference]: Start difference. First operand 150 states and 208 transitions. Second operand 8 states. [2020-08-18 19:30:47,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 19:30:47,847 INFO L93 Difference]: Finished difference Result 447 states and 675 transitions. [2020-08-18 19:30:47,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-08-18 19:30:47,847 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 51 [2020-08-18 19:30:47,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 19:30:47,850 INFO L225 Difference]: With dead ends: 447 [2020-08-18 19:30:47,850 INFO L226 Difference]: Without dead ends: 308 [2020-08-18 19:30:47,854 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2020-08-18 19:30:47,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 308 states. [2020-08-18 19:30:47,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 308 to 174. [2020-08-18 19:30:47,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 174 states. [2020-08-18 19:30:47,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 249 transitions. [2020-08-18 19:30:47,898 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 249 transitions. Word has length 51 [2020-08-18 19:30:47,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 19:30:47,899 INFO L479 AbstractCegarLoop]: Abstraction has 174 states and 249 transitions. [2020-08-18 19:30:47,899 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-18 19:30:47,899 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 249 transitions. [2020-08-18 19:30:47,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-08-18 19:30:47,905 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 19:30:47,905 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 19:30:47,905 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-08-18 19:30:47,906 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 19:30:47,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 19:30:47,906 INFO L82 PathProgramCache]: Analyzing trace with hash -1574199465, now seen corresponding path program 1 times [2020-08-18 19:30:47,906 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 19:30:47,910 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1468292168] [2020-08-18 19:30:47,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 19:30:47,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 19:30:47,997 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 19:30:47,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 19:30:48,004 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 19:30:48,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 19:30:48,007 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-08-18 19:30:48,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 19:30:48,010 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-08-18 19:30:48,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 19:30:48,012 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-08-18 19:30:48,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 19:30:48,023 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-08-18 19:30:48,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 19:30:48,032 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2020-08-18 19:30:48,033 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1468292168] [2020-08-18 19:30:48,033 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 19:30:48,033 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-08-18 19:30:48,034 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [671777444] [2020-08-18 19:30:48,034 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-08-18 19:30:48,035 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 19:30:48,035 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-08-18 19:30:48,035 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-08-18 19:30:48,035 INFO L87 Difference]: Start difference. First operand 174 states and 249 transitions. Second operand 6 states. [2020-08-18 19:30:48,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 19:30:48,161 INFO L93 Difference]: Finished difference Result 318 states and 465 transitions. [2020-08-18 19:30:48,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-08-18 19:30:48,162 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 63 [2020-08-18 19:30:48,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 19:30:48,164 INFO L225 Difference]: With dead ends: 318 [2020-08-18 19:30:48,164 INFO L226 Difference]: Without dead ends: 155 [2020-08-18 19:30:48,165 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-08-18 19:30:48,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155 states. [2020-08-18 19:30:48,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155 to 98. [2020-08-18 19:30:48,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 98 states. [2020-08-18 19:30:48,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 130 transitions. [2020-08-18 19:30:48,174 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 130 transitions. Word has length 63 [2020-08-18 19:30:48,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 19:30:48,175 INFO L479 AbstractCegarLoop]: Abstraction has 98 states and 130 transitions. [2020-08-18 19:30:48,175 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-08-18 19:30:48,175 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 130 transitions. [2020-08-18 19:30:48,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-08-18 19:30:48,177 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 19:30:48,177 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 19:30:48,178 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-08-18 19:30:48,178 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 19:30:48,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 19:30:48,178 INFO L82 PathProgramCache]: Analyzing trace with hash -1192820603, now seen corresponding path program 1 times [2020-08-18 19:30:48,179 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 19:30:48,179 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1294763080] [2020-08-18 19:30:48,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 19:30:48,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-08-18 19:30:48,197 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-08-18 19:30:48,198 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-08-18 19:30:48,202 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-08-18 19:30:48,223 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.08 07:30:48 BoogieIcfgContainer [2020-08-18 19:30:48,223 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-08-18 19:30:48,226 INFO L168 Benchmark]: Toolchain (without parser) took 3630.62 ms. Allocated memory was 140.5 MB in the beginning and 244.8 MB in the end (delta: 104.3 MB). Free memory was 104.1 MB in the beginning and 131.2 MB in the end (delta: -27.1 MB). Peak memory consumption was 77.3 MB. Max. memory is 7.1 GB. [2020-08-18 19:30:48,226 INFO L168 Benchmark]: CDTParser took 0.14 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 19:30:48,227 INFO L168 Benchmark]: CACSL2BoogieTranslator took 295.47 ms. Allocated memory is still 140.5 MB. Free memory was 103.9 MB in the beginning and 93.1 MB in the end (delta: 10.8 MB). Peak memory consumption was 10.8 MB. Max. memory is 7.1 GB. [2020-08-18 19:30:48,228 INFO L168 Benchmark]: Boogie Preprocessor took 116.90 ms. Allocated memory was 140.5 MB in the beginning and 203.4 MB in the end (delta: 62.9 MB). Free memory was 93.1 MB in the beginning and 181.4 MB in the end (delta: -88.3 MB). Peak memory consumption was 12.7 MB. Max. memory is 7.1 GB. [2020-08-18 19:30:48,229 INFO L168 Benchmark]: RCFGBuilder took 422.75 ms. Allocated memory is still 203.4 MB. Free memory was 181.4 MB in the beginning and 161.1 MB in the end (delta: 20.3 MB). Peak memory consumption was 20.3 MB. Max. memory is 7.1 GB. [2020-08-18 19:30:48,230 INFO L168 Benchmark]: TraceAbstraction took 2789.05 ms. Allocated memory was 203.4 MB in the beginning and 244.8 MB in the end (delta: 41.4 MB). Free memory was 160.4 MB in the beginning and 131.2 MB in the end (delta: 29.3 MB). Peak memory consumption was 70.7 MB. Max. memory is 7.1 GB. [2020-08-18 19:30:48,234 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 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 295.47 ms. Allocated memory is still 140.5 MB. Free memory was 103.9 MB in the beginning and 93.1 MB in the end (delta: 10.8 MB). Peak memory consumption was 10.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 116.90 ms. Allocated memory was 140.5 MB in the beginning and 203.4 MB in the end (delta: 62.9 MB). Free memory was 93.1 MB in the beginning and 181.4 MB in the end (delta: -88.3 MB). Peak memory consumption was 12.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 422.75 ms. Allocated memory is still 203.4 MB. Free memory was 181.4 MB in the beginning and 161.1 MB in the end (delta: 20.3 MB). Peak memory consumption was 20.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2789.05 ms. Allocated memory was 203.4 MB in the beginning and 244.8 MB in the end (delta: 41.4 MB). Free memory was 160.4 MB in the beginning and 131.2 MB in the end (delta: 29.3 MB). Peak memory consumption was 70.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 4]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L9] int ldv_mutex = 1; [L11] int open_called = 0; [L74] int ldv_s_misc_fops_file_operations = 0; [L75] CALL my_init() [L69] open_called = 0 [L70] return 0; [L75] RET my_init() [L76] COND TRUE __VERIFIER_nondet_int() [L80] case 0: [L81] COND TRUE ldv_s_misc_fops_file_operations==0 [L82] CALL misc_open() [L57] COND TRUE __VERIFIER_nondet_int() [L59] return 1; [L82] RET misc_open() [L83] ldv_s_misc_fops_file_operations++ [L76] COND TRUE __VERIFIER_nondet_int() [L80] case 0: [L88] case 1: [L89] COND TRUE ldv_s_misc_fops_file_operations==1 [L90] CALL misc_read() [L52] return 0; [L90] RET misc_read() [L91] ldv_s_misc_fops_file_operations++ [L76] COND TRUE __VERIFIER_nondet_int() [L80] case 0: [L88] case 1: [L96] case 2: [L97] COND TRUE ldv_s_misc_fops_file_operations==2 [L98] CALL misc_llseek() [L48] return 0; [L98] RET misc_llseek() [L99] ldv_s_misc_fops_file_operations++ [L76] COND TRUE __VERIFIER_nondet_int() [L80] case 0: [L88] case 1: [L96] case 2: [L104] case 3: [L105] COND TRUE ldv_s_misc_fops_file_operations==3 [L106] CALL misc_release() [L34] COND FALSE !(\read(open_called)) [L41] CALL mutex_lock() [L16] (ldv_mutex == 1) ? 0 : __blast_assert() [L17] ldv_mutex = 2 [L41] RET mutex_lock() [L42] CALL mutex_lock() [L16] (ldv_mutex == 1) ? 0 : __blast_assert() [L16] CALL __blast_assert() [L4] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 12 procedures, 74 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 2.7s, OverallIterations: 7, TraceHistogramMax: 4, AutomataDifference: 1.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 408 SDtfs, 599 SDslu, 753 SDs, 0 SdLazy, 707 SolverSat, 229 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 79 GetRequests, 41 SyntacticMatches, 1 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=174occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 6 MinimizatonAttempts, 321 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 279 NumberOfCodeBlocks, 279 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 210 ConstructedInterpolants, 0 QuantifiedInterpolants, 16438 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 4 PerfectInterpolantSequences, 25/39 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...