/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 --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options interpolation-heuristic=FIRST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/loop-invgen/NetBSD_loop.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 16:10:48,826 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 16:10:48,832 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 16:10:48,888 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 16:10:48,889 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 16:10:48,899 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 16:10:48,903 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 16:10:48,907 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 16:10:48,911 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 16:10:48,913 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 16:10:48,914 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 16:10:48,916 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 16:10:48,916 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 16:10:48,919 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 16:10:48,923 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 16:10:48,925 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 16:10:48,927 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 16:10:48,930 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 16:10:48,933 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 16:10:48,941 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 16:10:48,945 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 16:10:48,946 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 16:10:48,948 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 16:10:48,949 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 16:10:48,952 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 16:10:48,953 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 16:10:48,953 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 16:10:48,956 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 16:10:48,957 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 16:10:48,958 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 16:10:48,958 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 16:10:48,959 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 16:10:48,960 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 16:10:48,961 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 16:10:48,963 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 16:10:48,963 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 16:10:48,964 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 16:10:48,965 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 16:10:48,965 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 16:10:48,966 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 16:10:48,968 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 16:10:48,969 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 [2020-09-24 16:10:49,019 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 16:10:49,019 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 16:10:49,021 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 16:10:49,022 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 16:10:49,022 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 16:10:49,022 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 16:10:49,023 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 16:10:49,023 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 16:10:49,023 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 16:10:49,023 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 16:10:49,024 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 16:10:49,024 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 16:10:49,025 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 16:10:49,025 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 16:10:49,025 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 16:10:49,025 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 16:10:49,026 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 16:10:49,026 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 16:10:49,026 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 16:10:49,026 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 16:10:49,026 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 16:10:49,027 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 16:10:49,027 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 16:10:49,027 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 16:10:49,027 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 16:10:49,027 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 16:10:49,028 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 16:10:49,028 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 16:10:49,028 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 16:10:49,028 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.rcfgbuilder: Size of a code block -> SingleStatement 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 -> produce-proofs=true;produce-unsat-cores=true;interpolation-heuristic=FIRST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;interpolation-heuristic=FIRST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;interpolation-heuristic=FIRST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;interpolation-heuristic=FIRST;log-additional-information=true; [2020-09-24 16:10:49,475 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 16:10:49,501 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 16:10:49,506 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 16:10:49,508 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 16:10:49,509 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 16:10:49,510 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-invgen/NetBSD_loop.i [2020-09-24 16:10:49,600 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/436017731/3d99c7161b9f4e81af735b9c131b7877/FLAG237528420 [2020-09-24 16:10:50,097 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 16:10:50,098 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/loop-invgen/NetBSD_loop.i [2020-09-24 16:10:50,107 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/436017731/3d99c7161b9f4e81af735b9c131b7877/FLAG237528420 [2020-09-24 16:10:50,438 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/436017731/3d99c7161b9f4e81af735b9c131b7877 [2020-09-24 16:10:50,452 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 16:10:50,458 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 16:10:50,460 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 16:10:50,460 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 16:10:50,465 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 16:10:50,466 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 04:10:50" (1/1) ... [2020-09-24 16:10:50,471 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@87e4b2e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:10:50, skipping insertion in model container [2020-09-24 16:10:50,471 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 04:10:50" (1/1) ... [2020-09-24 16:10:50,481 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 16:10:50,511 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 16:10:50,810 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 16:10:50,816 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 16:10:50,833 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 16:10:50,848 INFO L208 MainTranslator]: Completed translation [2020-09-24 16:10:50,849 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:10:50 WrapperNode [2020-09-24 16:10:50,849 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 16:10:50,850 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 16:10:50,850 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 16:10:50,850 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 16:10:50,864 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:10:50" (1/1) ... [2020-09-24 16:10:50,864 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:10:50" (1/1) ... [2020-09-24 16:10:50,870 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:10:50" (1/1) ... [2020-09-24 16:10:50,870 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:10:50" (1/1) ... [2020-09-24 16:10:50,874 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:10:50" (1/1) ... [2020-09-24 16:10:50,879 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:10:50" (1/1) ... [2020-09-24 16:10:50,880 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:10:50" (1/1) ... [2020-09-24 16:10:50,967 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 16:10:50,968 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 16:10:50,968 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 16:10:50,968 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 16:10:50,972 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:10:50" (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 [2020-09-24 16:10:51,062 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 16:10:51,062 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 16:10:51,062 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-09-24 16:10:51,063 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-09-24 16:10:51,063 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 16:10:51,063 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 16:10:51,063 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-09-24 16:10:51,064 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-09-24 16:10:51,064 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-09-24 16:10:51,064 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 16:10:51,064 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 16:10:51,064 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 16:10:51,065 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 16:10:51,305 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 16:10:51,305 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-09-24 16:10:51,310 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 04:10:51 BoogieIcfgContainer [2020-09-24 16:10:51,310 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 16:10:51,311 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 16:10:51,312 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 16:10:51,315 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 16:10:51,316 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 04:10:50" (1/3) ... [2020-09-24 16:10:51,317 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d926e0b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 04:10:51, skipping insertion in model container [2020-09-24 16:10:51,317 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:10:50" (2/3) ... [2020-09-24 16:10:51,318 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d926e0b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 04:10:51, skipping insertion in model container [2020-09-24 16:10:51,318 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 04:10:51" (3/3) ... [2020-09-24 16:10:51,320 INFO L109 eAbstractionObserver]: Analyzing ICFG NetBSD_loop.i [2020-09-24 16:10:51,332 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 16:10:51,342 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 16:10:51,366 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 16:10:51,397 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 16:10:51,397 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 16:10:51,397 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 16:10:51,397 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 16:10:51,397 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 16:10:51,398 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 16:10:51,398 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 16:10:51,398 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 16:10:51,418 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states. [2020-09-24 16:10:51,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-09-24 16:10:51,426 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:10:51,427 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] [2020-09-24 16:10:51,427 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:10:51,433 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:10:51,434 INFO L82 PathProgramCache]: Analyzing trace with hash -2007421113, now seen corresponding path program 1 times [2020-09-24 16:10:51,445 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:10:51,446 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [384613769] [2020-09-24 16:10:51,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:10:51,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:10:51,625 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:10:51,625 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:10:51,625 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:10:51,626 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:10:51,626 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-24 16:10:51,626 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:10:51,626 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-09-24 16:10:51,627 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:10:51,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 16:10:51,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-09-24 16:10:51,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-24 16:10:51,628 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:10:51,755 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:10:51,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:10:51,758 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:10:51,759 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:10:51,759 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:10:51,759 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:10:51,759 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:10:51,760 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:10:51,760 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:10:51,760 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:10:51,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:10:51,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:10:51,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:10:51,762 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:10:51,772 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 16:10:51,774 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [384613769] [2020-09-24 16:10:51,776 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 16:10:51,777 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-24 16:10:51,778 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [332052755] [2020-09-24 16:10:51,787 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-24 16:10:51,787 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:10:51,815 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-24 16:10:51,817 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-09-24 16:10:51,821 INFO L87 Difference]: Start difference. First operand 36 states. Second operand 7 states. [2020-09-24 16:10:52,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 16:10:52,047 INFO L93 Difference]: Finished difference Result 68 states and 83 transitions. [2020-09-24 16:10:52,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-24 16:10:52,049 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 24 [2020-09-24 16:10:52,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 16:10:52,062 INFO L225 Difference]: With dead ends: 68 [2020-09-24 16:10:52,063 INFO L226 Difference]: Without dead ends: 40 [2020-09-24 16:10:52,073 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2020-09-24 16:10:52,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2020-09-24 16:10:52,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 37. [2020-09-24 16:10:52,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2020-09-24 16:10:52,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 38 transitions. [2020-09-24 16:10:52,127 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 38 transitions. Word has length 24 [2020-09-24 16:10:52,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 16:10:52,127 INFO L479 AbstractCegarLoop]: Abstraction has 37 states and 38 transitions. [2020-09-24 16:10:52,127 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-24 16:10:52,128 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 38 transitions. [2020-09-24 16:10:52,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-09-24 16:10:52,129 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:10:52,129 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-09-24 16:10:52,130 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 16:10:52,130 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:10:52,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:10:52,131 INFO L82 PathProgramCache]: Analyzing trace with hash -1994781074, now seen corresponding path program 1 times [2020-09-24 16:10:52,131 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:10:52,131 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1522879206] [2020-09-24 16:10:52,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:10:52,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:10:52,200 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:10:52,200 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:10:52,201 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:10:52,201 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:10:52,201 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-09-24 16:10:52,202 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:10:52,202 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-09-24 16:10:52,202 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:10:52,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 16:10:52,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 20 [2020-09-24 16:10:52,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-09-24 16:10:52,203 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:10:52,301 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:10:52,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:10:52,304 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:10:52,304 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:10:52,304 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:10:52,305 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:10:52,305 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:10:52,305 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:10:52,306 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:10:52,306 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:10:52,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:10:52,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:10:52,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:10:52,307 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:10:52,309 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-09-24 16:10:52,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:10:52,317 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:10:52,317 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:10:52,317 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:10:52,318 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:10:52,318 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 16:10:52,318 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:10:52,318 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 16:10:52,319 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:10:52,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:10:52,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:10:52,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 16:10:52,320 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:10:52,330 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 16:10:52,330 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1522879206] [2020-09-24 16:10:52,330 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 16:10:52,331 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-24 16:10:52,331 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [391428834] [2020-09-24 16:10:52,333 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-24 16:10:52,334 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:10:52,334 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-24 16:10:52,334 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-09-24 16:10:52,335 INFO L87 Difference]: Start difference. First operand 37 states and 38 transitions. Second operand 8 states. [2020-09-24 16:10:52,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 16:10:52,512 INFO L93 Difference]: Finished difference Result 46 states and 47 transitions. [2020-09-24 16:10:52,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-24 16:10:52,512 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 29 [2020-09-24 16:10:52,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 16:10:52,514 INFO L225 Difference]: With dead ends: 46 [2020-09-24 16:10:52,515 INFO L226 Difference]: Without dead ends: 44 [2020-09-24 16:10:52,516 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2020-09-24 16:10:52,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2020-09-24 16:10:52,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 42. [2020-09-24 16:10:52,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2020-09-24 16:10:52,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 43 transitions. [2020-09-24 16:10:52,540 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 43 transitions. Word has length 29 [2020-09-24 16:10:52,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 16:10:52,541 INFO L479 AbstractCegarLoop]: Abstraction has 42 states and 43 transitions. [2020-09-24 16:10:52,541 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-24 16:10:52,541 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 43 transitions. [2020-09-24 16:10:52,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-09-24 16:10:52,543 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:10:52,543 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 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] [2020-09-24 16:10:52,543 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 16:10:52,544 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:10:52,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:10:52,546 INFO L82 PathProgramCache]: Analyzing trace with hash -1065397402, now seen corresponding path program 1 times [2020-09-24 16:10:52,547 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:10:52,548 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1410805732] [2020-09-24 16:10:52,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:10:52,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:10:52,625 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:10:52,626 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:10:52,626 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:10:52,626 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:10:52,627 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-24 16:10:52,627 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:10:52,627 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-09-24 16:10:52,627 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:10:52,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 16:10:52,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-09-24 16:10:52,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-24 16:10:52,628 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:10:52,715 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:10:52,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:10:52,717 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:10:52,717 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:10:52,718 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:10:52,718 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:10:52,718 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:10:52,718 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:10:52,719 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:10:52,719 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:10:52,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:10:52,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:10:52,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:10:52,720 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:10:52,722 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-09-24 16:10:52,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:10:52,727 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:10:52,727 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:10:52,727 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:10:52,728 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:10:52,728 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 16:10:52,728 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:10:52,728 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:10:52,728 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:10:52,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:10:52,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:10:52,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 16:10:52,729 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:10:52,734 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-09-24 16:10:52,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:10:52,741 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:10:52,742 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:10:52,742 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:10:52,743 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:10:52,743 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 16:10:52,743 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:10:52,743 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 16:10:52,744 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:10:52,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:10:52,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:10:52,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 16:10:52,745 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:10:52,759 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-09-24 16:10:52,759 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1410805732] [2020-09-24 16:10:52,761 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 16:10:52,761 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-24 16:10:52,761 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1715675154] [2020-09-24 16:10:52,763 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 16:10:52,763 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:10:52,763 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 16:10:52,764 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-24 16:10:52,764 INFO L87 Difference]: Start difference. First operand 42 states and 43 transitions. Second operand 9 states. [2020-09-24 16:10:52,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 16:10:52,957 INFO L93 Difference]: Finished difference Result 50 states and 50 transitions. [2020-09-24 16:10:52,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-24 16:10:52,958 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 38 [2020-09-24 16:10:52,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 16:10:52,959 INFO L225 Difference]: With dead ends: 50 [2020-09-24 16:10:52,959 INFO L226 Difference]: Without dead ends: 48 [2020-09-24 16:10:52,960 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=57, Invalid=153, Unknown=0, NotChecked=0, Total=210 [2020-09-24 16:10:52,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2020-09-24 16:10:52,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 46. [2020-09-24 16:10:52,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2020-09-24 16:10:52,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 46 transitions. [2020-09-24 16:10:52,970 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 46 transitions. Word has length 38 [2020-09-24 16:10:52,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 16:10:52,971 INFO L479 AbstractCegarLoop]: Abstraction has 46 states and 46 transitions. [2020-09-24 16:10:52,971 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-24 16:10:52,971 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 46 transitions. [2020-09-24 16:10:52,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2020-09-24 16:10:52,973 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:10:52,973 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 2, 2, 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] [2020-09-24 16:10:52,973 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 16:10:52,974 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:10:52,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:10:52,974 INFO L82 PathProgramCache]: Analyzing trace with hash 470853039, now seen corresponding path program 2 times [2020-09-24 16:10:52,974 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:10:52,975 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [177679250] [2020-09-24 16:10:52,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:10:52,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:10:53,020 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:10:53,021 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:10:53,021 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:10:53,021 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:10:53,022 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-09-24 16:10:53,022 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:10:53,022 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-09-24 16:10:53,022 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:10:53,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-24 16:10:53,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 20 [2020-09-24 16:10:53,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-09-24 16:10:53,023 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:10:53,129 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:10:53,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:10:53,132 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:10:53,132 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:10:53,132 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:10:53,133 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:10:53,133 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:10:53,133 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:10:53,133 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:10:53,133 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:10:53,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:10:53,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:10:53,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:10:53,134 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:10:53,136 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-09-24 16:10:53,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:10:53,141 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:10:53,141 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:10:53,141 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:10:53,142 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:10:53,142 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 16:10:53,142 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:10:53,142 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:10:53,143 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:10:53,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:10:53,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:10:53,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 16:10:53,143 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:10:53,147 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-09-24 16:10:53,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:10:53,153 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:10:53,153 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:10:53,153 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:10:53,153 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:10:53,154 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 16:10:53,154 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:10:53,154 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:10:53,154 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:10:53,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:10:53,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:10:53,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 16:10:53,155 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:10:53,159 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-24 16:10:53,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:10:53,163 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:10:53,164 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:10:53,164 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:10:53,164 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:10:53,164 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 16:10:53,165 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:10:53,165 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:10:53,165 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:10:53,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:10:53,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:10:53,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 16:10:53,166 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:10:53,172 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-09-24 16:10:53,173 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [177679250] [2020-09-24 16:10:53,173 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 16:10:53,173 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-09-24 16:10:53,174 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1341334424] [2020-09-24 16:10:53,174 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-24 16:10:53,174 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:10:53,175 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-24 16:10:53,175 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2020-09-24 16:10:53,175 INFO L87 Difference]: Start difference. First operand 46 states and 46 transitions. Second operand 10 states. [2020-09-24 16:10:53,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 16:10:53,399 INFO L93 Difference]: Finished difference Result 60 states and 61 transitions. [2020-09-24 16:10:53,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-24 16:10:53,400 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 43 [2020-09-24 16:10:53,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 16:10:53,401 INFO L225 Difference]: With dead ends: 60 [2020-09-24 16:10:53,402 INFO L226 Difference]: Without dead ends: 58 [2020-09-24 16:10:53,403 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2020-09-24 16:10:53,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2020-09-24 16:10:53,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 56. [2020-09-24 16:10:53,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2020-09-24 16:10:53,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 57 transitions. [2020-09-24 16:10:53,415 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 57 transitions. Word has length 43 [2020-09-24 16:10:53,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 16:10:53,415 INFO L479 AbstractCegarLoop]: Abstraction has 56 states and 57 transitions. [2020-09-24 16:10:53,415 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-24 16:10:53,416 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 57 transitions. [2020-09-24 16:10:53,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-09-24 16:10:53,418 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:10:53,418 INFO L422 BasicCegarLoop]: trace histogram [6, 5, 5, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 16:10:53,418 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 16:10:53,418 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:10:53,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:10:53,419 INFO L82 PathProgramCache]: Analyzing trace with hash -2065107152, now seen corresponding path program 3 times [2020-09-24 16:10:53,419 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:10:53,420 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1913480792] [2020-09-24 16:10:53,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:10:53,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:10:53,491 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:10:53,492 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:10:53,492 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:10:53,492 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:10:53,494 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-09-24 16:10:53,495 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:10:53,495 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-09-24 16:10:53,495 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:10:53,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 16:10:53,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-09-24 16:10:53,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-09-24 16:10:53,496 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:10:53,599 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:10:53,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:10:53,601 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:10:53,601 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:10:53,601 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:10:53,601 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:10:53,602 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:10:53,602 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:10:53,602 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:10:53,603 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:10:53,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:10:53,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:10:53,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:10:53,605 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 16:10:53,607 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-09-24 16:10:53,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:10:53,615 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:10:53,615 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:10:53,615 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:10:53,616 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:10:53,616 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 16:10:53,616 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:10:53,616 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 16:10:53,617 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:10:53,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:10:53,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:10:53,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 16:10:53,617 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:10:53,622 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-09-24 16:10:53,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:10:53,627 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:10:53,628 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:10:53,628 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:10:53,628 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:10:53,628 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 16:10:53,628 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:10:53,629 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:10:53,629 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:10:53,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:10:53,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:10:53,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 16:10:53,630 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:10:53,634 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-24 16:10:53,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:10:53,643 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:10:53,643 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:10:53,643 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:10:53,644 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:10:53,644 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 16:10:53,644 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:10:53,644 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 16:10:53,645 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:10:53,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:10:53,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:10:53,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 16:10:53,646 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:10:53,649 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-09-24 16:10:53,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:10:53,659 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:10:53,659 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:10:53,660 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:10:53,660 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:10:53,661 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 16:10:53,661 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:10:53,661 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 16:10:53,661 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:10:53,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:10:53,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:10:53,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 16:10:53,663 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:10:53,683 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-09-24 16:10:53,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:10:53,694 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:10:53,694 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:10:53,694 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:10:53,695 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:10:53,695 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 16:10:53,695 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:10:53,695 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:10:53,695 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:10:53,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:10:53,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:10:53,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 16:10:53,696 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:10:53,702 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 10 proven. 4 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2020-09-24 16:10:53,703 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1913480792] [2020-09-24 16:10:53,703 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 16:10:53,703 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-09-24 16:10:53,703 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1516892934] [2020-09-24 16:10:53,704 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-24 16:10:53,704 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:10:53,704 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-24 16:10:53,705 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-09-24 16:10:53,705 INFO L87 Difference]: Start difference. First operand 56 states and 57 transitions. Second operand 8 states. [2020-09-24 16:10:53,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 16:10:53,812 INFO L93 Difference]: Finished difference Result 56 states and 57 transitions. [2020-09-24 16:10:53,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-24 16:10:53,812 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 57 [2020-09-24 16:10:53,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 16:10:53,813 INFO L225 Difference]: With dead ends: 56 [2020-09-24 16:10:53,813 INFO L226 Difference]: Without dead ends: 0 [2020-09-24 16:10:53,814 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2020-09-24 16:10:53,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-24 16:10:53,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-24 16:10:53,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-24 16:10:53,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-24 16:10:53,815 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 57 [2020-09-24 16:10:53,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 16:10:53,815 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-24 16:10:53,815 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-24 16:10:53,816 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-24 16:10:53,816 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-24 16:10:53,816 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-24 16:10:53,819 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-24 16:10:54,214 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 26 DAG size of output: 23 [2020-09-24 16:10:54,218 INFO L271 CegarLoopResult]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2020-09-24 16:10:54,218 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-09-24 16:10:54,218 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-09-24 16:10:54,218 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-09-24 16:10:54,219 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-09-24 16:10:54,219 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-09-24 16:10:54,219 INFO L268 CegarLoopResult]: For program point L4-3(lines 3 5) no Hoare annotation was computed. [2020-09-24 16:10:54,219 INFO L268 CegarLoopResult]: For program point assume_abort_if_notENTRY(lines 3 5) no Hoare annotation was computed. [2020-09-24 16:10:54,219 INFO L268 CegarLoopResult]: For program point L4(line 4) no Hoare annotation was computed. [2020-09-24 16:10:54,219 INFO L268 CegarLoopResult]: For program point L4-1(line 4) no Hoare annotation was computed. [2020-09-24 16:10:54,219 INFO L268 CegarLoopResult]: For program point assume_abort_if_notEXIT(lines 3 5) no Hoare annotation was computed. [2020-09-24 16:10:54,220 INFO L271 CegarLoopResult]: At program point L33(lines 14 34) the Hoare annotation is: true [2020-09-24 16:10:54,220 INFO L268 CegarLoopResult]: For program point L31(lines 27 32) no Hoare annotation was computed. [2020-09-24 16:10:54,220 INFO L268 CegarLoopResult]: For program point L29(line 29) no Hoare annotation was computed. [2020-09-24 16:10:54,220 INFO L268 CegarLoopResult]: For program point L29-1(line 29) no Hoare annotation was computed. [2020-09-24 16:10:54,220 INFO L268 CegarLoopResult]: For program point L27(line 27) no Hoare annotation was computed. [2020-09-24 16:10:54,220 INFO L268 CegarLoopResult]: For program point L25(line 25) no Hoare annotation was computed. [2020-09-24 16:10:54,220 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 13 34) no Hoare annotation was computed. [2020-09-24 16:10:54,221 INFO L264 CegarLoopResult]: At program point L27-3(lines 27 32) the Hoare annotation is: (and (<= (+ main_~glob2_pathbuf_off~0 1) main_~MAXPATHLEN~0) (<= main_~glob2_pathlim_off~0 main_~MAXPATHLEN~0) (<= main_~pathbuf_off~0 0) (<= 0 main_~pathbuf_off~0) (<= 0 main_~glob2_p_off~0) (<= 0 main_~glob2_pathbuf_off~0) (<= main_~bound_off~0 main_~MAXPATHLEN~0)) [2020-09-24 16:10:54,221 INFO L268 CegarLoopResult]: For program point L21(line 21) no Hoare annotation was computed. [2020-09-24 16:10:54,221 INFO L268 CegarLoopResult]: For program point L21-1(line 21) no Hoare annotation was computed. [2020-09-24 16:10:54,221 INFO L268 CegarLoopResult]: For program point L19(line 19) no Hoare annotation was computed. [2020-09-24 16:10:54,221 INFO L268 CegarLoopResult]: For program point L21-2(line 21) no Hoare annotation was computed. [2020-09-24 16:10:54,221 INFO L268 CegarLoopResult]: For program point L17(line 17) no Hoare annotation was computed. [2020-09-24 16:10:54,222 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 13 34) no Hoare annotation was computed. [2020-09-24 16:10:54,222 INFO L264 CegarLoopResult]: At program point L30(line 30) the Hoare annotation is: (let ((.cse0 (<= (+ main_~glob2_pathbuf_off~0 1) main_~MAXPATHLEN~0)) (.cse1 (<= main_~glob2_pathlim_off~0 main_~MAXPATHLEN~0)) (.cse2 (<= main_~pathbuf_off~0 0)) (.cse3 (<= 0 main_~pathbuf_off~0)) (.cse4 (<= 0 main_~glob2_pathbuf_off~0)) (.cse5 (<= main_~bound_off~0 main_~MAXPATHLEN~0))) (or (and .cse0 .cse1 (<= (+ main_~glob2_p_off~0 1) main_~MAXPATHLEN~0) .cse2 .cse3 (<= 0 main_~glob2_p_off~0) .cse4 .cse5) (and (<= 1 main_~glob2_p_off~0) (<= main_~glob2_p_off~0 main_~MAXPATHLEN~0) .cse0 .cse1 .cse2 .cse3 .cse4 .cse5))) [2020-09-24 16:10:54,222 INFO L271 CegarLoopResult]: At program point mainENTRY(lines 13 34) the Hoare annotation is: true [2020-09-24 16:10:54,222 INFO L264 CegarLoopResult]: At program point L30-1(line 30) the Hoare annotation is: (let ((.cse0 (<= (+ main_~glob2_pathbuf_off~0 1) main_~MAXPATHLEN~0)) (.cse1 (<= main_~glob2_pathlim_off~0 main_~MAXPATHLEN~0)) (.cse2 (<= main_~pathbuf_off~0 0)) (.cse3 (<= 0 main_~pathbuf_off~0)) (.cse4 (<= 0 main_~glob2_pathbuf_off~0)) (.cse5 (<= main_~bound_off~0 main_~MAXPATHLEN~0))) (or (and .cse0 .cse1 (<= (+ main_~glob2_p_off~0 1) main_~MAXPATHLEN~0) .cse2 .cse3 (<= 0 main_~glob2_p_off~0) .cse4 .cse5) (and (<= 1 main_~glob2_p_off~0) (<= main_~glob2_p_off~0 main_~MAXPATHLEN~0) .cse0 .cse1 .cse2 .cse3 .cse4 .cse5))) [2020-09-24 16:10:54,223 INFO L268 CegarLoopResult]: For program point L26(line 26) no Hoare annotation was computed. [2020-09-24 16:10:54,223 INFO L268 CegarLoopResult]: For program point L24(line 24) no Hoare annotation was computed. [2020-09-24 16:10:54,223 INFO L268 CegarLoopResult]: For program point L22(line 22) no Hoare annotation was computed. [2020-09-24 16:10:54,223 INFO L268 CegarLoopResult]: For program point L22-1(line 22) no Hoare annotation was computed. [2020-09-24 16:10:54,223 INFO L268 CegarLoopResult]: For program point L20(line 20) no Hoare annotation was computed. [2020-09-24 16:10:54,223 INFO L268 CegarLoopResult]: For program point L18(line 18) no Hoare annotation was computed. [2020-09-24 16:10:54,223 INFO L268 CegarLoopResult]: For program point L16(line 16) no Hoare annotation was computed. [2020-09-24 16:10:54,223 INFO L271 CegarLoopResult]: At program point __VERIFIER_assertENTRY(lines 6 11) the Hoare annotation is: true [2020-09-24 16:10:54,224 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertEXIT(lines 6 11) no Hoare annotation was computed. [2020-09-24 16:10:54,224 INFO L268 CegarLoopResult]: For program point L8(line 8) no Hoare annotation was computed. [2020-09-24 16:10:54,224 INFO L268 CegarLoopResult]: For program point L7(lines 7 9) no Hoare annotation was computed. [2020-09-24 16:10:54,224 INFO L268 CegarLoopResult]: For program point L7-2(lines 6 11) no Hoare annotation was computed. [2020-09-24 16:10:54,224 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 8) no Hoare annotation was computed. [2020-09-24 16:10:54,248 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.09 04:10:54 BoogieIcfgContainer [2020-09-24 16:10:54,248 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-24 16:10:54,251 INFO L168 Benchmark]: Toolchain (without parser) took 3796.46 ms. Allocated memory was 143.1 MB in the beginning and 243.8 MB in the end (delta: 100.7 MB). Free memory was 103.8 MB in the beginning and 143.8 MB in the end (delta: -40.0 MB). Peak memory consumption was 60.7 MB. Max. memory is 7.1 GB. [2020-09-24 16:10:54,252 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 143.1 MB. Free memory was 122.0 MB in the beginning and 121.7 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-09-24 16:10:54,252 INFO L168 Benchmark]: CACSL2BoogieTranslator took 389.22 ms. Allocated memory is still 143.1 MB. Free memory was 103.2 MB in the beginning and 93.7 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 7.1 GB. [2020-09-24 16:10:54,254 INFO L168 Benchmark]: Boogie Preprocessor took 117.40 ms. Allocated memory was 143.1 MB in the beginning and 204.5 MB in the end (delta: 61.3 MB). Free memory was 93.7 MB in the beginning and 184.1 MB in the end (delta: -90.3 MB). Peak memory consumption was 11.1 MB. Max. memory is 7.1 GB. [2020-09-24 16:10:54,254 INFO L168 Benchmark]: RCFGBuilder took 342.59 ms. Allocated memory is still 204.5 MB. Free memory was 184.1 MB in the beginning and 169.0 MB in the end (delta: 15.1 MB). Peak memory consumption was 15.1 MB. Max. memory is 7.1 GB. [2020-09-24 16:10:54,255 INFO L168 Benchmark]: TraceAbstraction took 2936.84 ms. Allocated memory was 204.5 MB in the beginning and 243.8 MB in the end (delta: 39.3 MB). Free memory was 169.0 MB in the beginning and 143.8 MB in the end (delta: 25.2 MB). Peak memory consumption was 64.5 MB. Max. memory is 7.1 GB. [2020-09-24 16:10:54,259 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 143.1 MB. Free memory was 122.0 MB in the beginning and 121.7 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 389.22 ms. Allocated memory is still 143.1 MB. Free memory was 103.2 MB in the beginning and 93.7 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 117.40 ms. Allocated memory was 143.1 MB in the beginning and 204.5 MB in the end (delta: 61.3 MB). Free memory was 93.7 MB in the beginning and 184.1 MB in the end (delta: -90.3 MB). Peak memory consumption was 11.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 342.59 ms. Allocated memory is still 204.5 MB. Free memory was 184.1 MB in the beginning and 169.0 MB in the end (delta: 15.1 MB). Peak memory consumption was 15.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2936.84 ms. Allocated memory was 204.5 MB in the beginning and 243.8 MB in the end (delta: 39.3 MB). Free memory was 169.0 MB in the beginning and 143.8 MB in the end (delta: 25.2 MB). Peak memory consumption was 64.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 8]: 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 - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 27]: Loop Invariant Derived loop invariant: (((((glob2_pathbuf_off + 1 <= MAXPATHLEN && glob2_pathlim_off <= MAXPATHLEN) && pathbuf_off <= 0) && 0 <= pathbuf_off) && 0 <= glob2_p_off) && 0 <= glob2_pathbuf_off) && bound_off <= MAXPATHLEN - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 41 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.4s, OverallIterations: 5, TraceHistogramMax: 6, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 143 SDtfs, 159 SDslu, 691 SDs, 0 SdLazy, 308 SolverSat, 71 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 98 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=56occurred in iteration=4, 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, 5 MinimizatonAttempts, 9 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 16 PreInvPairs, 26 NumberOfFragments, 144 HoareAnnotationTreeSize, 16 FomulaSimplifications, 71 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 9 FomulaSimplificationsInter, 84 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 191 NumberOfCodeBlocks, 191 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 186 ConstructedInterpolants, 0 QuantifiedInterpolants, 14604 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 3 PerfectInterpolantSequences, 88/95 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...