/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/recursive/recHanoi02-2.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 15:56:56,883 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 15:56:56,887 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 15:56:56,932 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 15:56:56,932 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 15:56:56,940 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 15:56:56,943 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 15:56:56,946 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 15:56:56,949 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 15:56:56,952 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 15:56:56,953 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 15:56:56,954 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 15:56:56,954 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 15:56:56,957 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 15:56:56,959 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 15:56:56,961 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 15:56:56,963 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 15:56:56,964 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 15:56:56,965 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 15:56:56,974 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 15:56:56,976 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 15:56:56,977 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 15:56:56,978 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 15:56:56,979 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 15:56:56,992 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 15:56:56,998 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 15:56:56,998 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 15:56:56,999 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 15:56:57,000 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 15:56:57,000 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 15:56:57,001 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 15:56:57,001 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 15:56:57,002 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 15:56:57,006 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 15:56:57,007 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 15:56:57,007 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 15:56:57,008 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 15:56:57,008 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 15:56:57,009 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 15:56:57,011 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 15:56:57,012 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 15:56:57,013 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 15:56:57,057 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 15:56:57,057 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 15:56:57,060 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 15:56:57,060 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 15:56:57,060 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 15:56:57,060 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 15:56:57,061 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 15:56:57,061 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 15:56:57,061 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 15:56:57,061 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 15:56:57,062 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 15:56:57,063 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 15:56:57,063 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 15:56:57,063 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 15:56:57,064 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 15:56:57,064 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 15:56:57,064 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 15:56:57,064 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 15:56:57,064 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 15:56:57,065 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 15:56:57,065 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 15:56:57,065 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 15:56:57,065 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 15:56:57,066 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 15:56:57,066 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 15:56:57,066 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 15:56:57,066 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 15:56:57,066 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 15:56:57,067 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 15:56:57,067 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 15:56:57,531 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 15:56:57,561 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 15:56:57,565 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 15:56:57,570 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 15:56:57,571 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 15:56:57,572 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive/recHanoi02-2.c [2020-09-24 15:56:57,671 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/60f3d3f20/cd0db1544e3d4ccf9fc8dd3e72a26131/FLAG752db1ca1 [2020-09-24 15:56:58,237 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 15:56:58,238 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/recursive/recHanoi02-2.c [2020-09-24 15:56:58,248 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/60f3d3f20/cd0db1544e3d4ccf9fc8dd3e72a26131/FLAG752db1ca1 [2020-09-24 15:56:58,579 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/60f3d3f20/cd0db1544e3d4ccf9fc8dd3e72a26131 [2020-09-24 15:56:58,593 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 15:56:58,599 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 15:56:58,600 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 15:56:58,601 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 15:56:58,605 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 15:56:58,606 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 03:56:58" (1/1) ... [2020-09-24 15:56:58,611 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4187f794 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:56:58, skipping insertion in model container [2020-09-24 15:56:58,611 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 03:56:58" (1/1) ... [2020-09-24 15:56:58,621 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 15:56:58,647 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 15:56:58,883 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 15:56:58,889 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 15:56:58,912 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 15:56:58,932 INFO L208 MainTranslator]: Completed translation [2020-09-24 15:56:58,933 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:56:58 WrapperNode [2020-09-24 15:56:58,933 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 15:56:58,934 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 15:56:58,934 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 15:56:58,934 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 15:56:58,954 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:56:58" (1/1) ... [2020-09-24 15:56:58,955 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:56:58" (1/1) ... [2020-09-24 15:56:59,096 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:56:58" (1/1) ... [2020-09-24 15:56:59,096 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:56:58" (1/1) ... [2020-09-24 15:56:59,106 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:56:58" (1/1) ... [2020-09-24 15:56:59,110 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:56:58" (1/1) ... [2020-09-24 15:56:59,111 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:56:58" (1/1) ... [2020-09-24 15:56:59,113 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 15:56:59,113 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 15:56:59,113 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 15:56:59,114 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 15:56:59,115 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:56:58" (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 15:56:59,198 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 15:56:59,199 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 15:56:59,199 INFO L138 BoogieDeclarations]: Found implementation of procedure hanoi [2020-09-24 15:56:59,199 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 15:56:59,199 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 15:56:59,200 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 15:56:59,200 INFO L130 BoogieDeclarations]: Found specification of procedure hanoi [2020-09-24 15:56:59,200 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 15:56:59,200 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 15:56:59,200 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 15:56:59,402 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 15:56:59,402 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-24 15:56:59,408 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 03:56:59 BoogieIcfgContainer [2020-09-24 15:56:59,408 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 15:56:59,409 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 15:56:59,409 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 15:56:59,413 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 15:56:59,414 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 03:56:58" (1/3) ... [2020-09-24 15:56:59,415 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5085f9d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 03:56:59, skipping insertion in model container [2020-09-24 15:56:59,415 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:56:58" (2/3) ... [2020-09-24 15:56:59,416 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5085f9d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 03:56:59, skipping insertion in model container [2020-09-24 15:56:59,416 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 03:56:59" (3/3) ... [2020-09-24 15:56:59,418 INFO L109 eAbstractionObserver]: Analyzing ICFG recHanoi02-2.c [2020-09-24 15:56:59,431 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 15:56:59,446 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 15:56:59,496 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 15:56:59,555 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 15:56:59,556 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 15:56:59,556 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 15:56:59,556 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 15:56:59,556 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 15:56:59,556 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 15:56:59,557 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 15:56:59,557 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 15:56:59,584 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states. [2020-09-24 15:56:59,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-09-24 15:56:59,597 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:56:59,598 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:56:59,598 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:56:59,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:56:59,605 INFO L82 PathProgramCache]: Analyzing trace with hash 607163649, now seen corresponding path program 1 times [2020-09-24 15:56:59,615 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:56:59,615 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1553673395] [2020-09-24 15:56:59,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:56:59,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:56:59,789 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:56:59,789 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:56:59,789 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:56:59,790 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:56:59,790 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-09-24 15:56:59,790 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:56:59,790 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-09-24 15:56:59,791 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:56:59,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 15:56:59,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 20 [2020-09-24 15:56:59,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 15:56:59,792 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:56:59,868 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:56:59,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:56:59,871 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:56:59,872 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:56:59,872 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:56:59,872 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:56:59,872 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:56:59,873 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:56:59,873 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:56:59,873 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:56:59,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:56:59,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:56:59,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:56:59,874 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:56:59,879 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-24 15:56:59,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:56:59,888 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:56:59,888 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:56:59,889 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:56:59,889 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:56:59,889 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:56:59,889 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:56:59,890 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 15:56:59,890 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:56:59,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 15:56:59,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:56:59,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 15:56:59,891 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:56:59,916 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 15:56:59,917 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1553673395] [2020-09-24 15:56:59,920 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 15:56:59,920 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-24 15:56:59,921 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1452932752] [2020-09-24 15:56:59,927 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-24 15:56:59,927 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:56:59,941 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-24 15:56:59,942 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-24 15:56:59,945 INFO L87 Difference]: Start difference. First operand 30 states. Second operand 5 states. [2020-09-24 15:57:00,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:57:00,039 INFO L93 Difference]: Finished difference Result 45 states and 49 transitions. [2020-09-24 15:57:00,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-24 15:57:00,042 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 19 [2020-09-24 15:57:00,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:57:00,056 INFO L225 Difference]: With dead ends: 45 [2020-09-24 15:57:00,057 INFO L226 Difference]: Without dead ends: 26 [2020-09-24 15:57:00,061 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-24 15:57:00,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2020-09-24 15:57:00,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2020-09-24 15:57:00,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2020-09-24 15:57:00,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 27 transitions. [2020-09-24 15:57:00,113 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 27 transitions. Word has length 19 [2020-09-24 15:57:00,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:57:00,114 INFO L479 AbstractCegarLoop]: Abstraction has 26 states and 27 transitions. [2020-09-24 15:57:00,114 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-24 15:57:00,114 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 27 transitions. [2020-09-24 15:57:00,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-09-24 15:57:00,117 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:57:00,117 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] [2020-09-24 15:57:00,118 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 15:57:00,118 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:57:00,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:57:00,119 INFO L82 PathProgramCache]: Analyzing trace with hash 1887435767, now seen corresponding path program 1 times [2020-09-24 15:57:00,119 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:57:00,119 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1259355774] [2020-09-24 15:57:00,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:57:00,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:57:00,180 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:57:00,180 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:57:00,181 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:57:00,181 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:57:00,181 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-09-24 15:57:00,181 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:57:00,182 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-24 15:57:00,182 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:57:00,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 15:57:00,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 25 [2020-09-24 15:57:00,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-24 15:57:00,183 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:57:00,219 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:57:00,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:57:00,223 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:57:00,223 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:57:00,223 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:57:00,224 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:57:00,224 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:57:00,224 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:57:00,224 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:57:00,225 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:57:00,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:57:00,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:57:00,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:57:00,226 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:57:00,228 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-24 15:57:00,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:57:00,256 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:57:00,256 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:57:00,257 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:57:00,257 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:57:00,257 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-24 15:57:00,258 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:57:00,258 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-24 15:57:00,258 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:57:00,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 15:57:00,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:57:00,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-24 15:57:00,260 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:57:00,306 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:57:00,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:57:00,315 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:57:00,316 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:57:00,316 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:57:00,316 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:57:00,317 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:57:00,317 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:57:00,317 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 15:57:00,318 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:57:00,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 15:57:00,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:57:00,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 15:57:00,319 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:57:00,343 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-09-24 15:57:00,344 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1259355774] [2020-09-24 15:57:00,344 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 15:57:00,345 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-24 15:57:00,345 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [526203596] [2020-09-24 15:57:00,347 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-24 15:57:00,347 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:57:00,348 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-24 15:57:00,348 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-09-24 15:57:00,348 INFO L87 Difference]: Start difference. First operand 26 states and 27 transitions. Second operand 7 states. [2020-09-24 15:57:00,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:57:00,398 INFO L93 Difference]: Finished difference Result 26 states and 27 transitions. [2020-09-24 15:57:00,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-24 15:57:00,399 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 27 [2020-09-24 15:57:00,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:57:00,399 INFO L225 Difference]: With dead ends: 26 [2020-09-24 15:57:00,400 INFO L226 Difference]: Without dead ends: 0 [2020-09-24 15:57:00,401 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-09-24 15:57:00,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-24 15:57:00,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-24 15:57:00,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-24 15:57:00,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-24 15:57:00,402 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 27 [2020-09-24 15:57:00,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:57:00,403 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-24 15:57:00,403 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-24 15:57:00,403 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-24 15:57:00,403 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-24 15:57:00,403 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 15:57:00,406 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-24 15:57:00,434 INFO L271 CegarLoopResult]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2020-09-24 15:57:00,434 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-09-24 15:57:00,434 INFO L268 CegarLoopResult]: For program point hanoiEXIT(lines 18 23) no Hoare annotation was computed. [2020-09-24 15:57:00,434 INFO L271 CegarLoopResult]: At program point hanoiENTRY(lines 18 23) the Hoare annotation is: true [2020-09-24 15:57:00,435 INFO L268 CegarLoopResult]: For program point hanoiFINAL(lines 18 23) no Hoare annotation was computed. [2020-09-24 15:57:00,435 INFO L271 CegarLoopResult]: At program point L22(line 22) the Hoare annotation is: true [2020-09-24 15:57:00,435 INFO L268 CegarLoopResult]: For program point L22-1(line 22) no Hoare annotation was computed. [2020-09-24 15:57:00,435 INFO L268 CegarLoopResult]: For program point L20(line 20) no Hoare annotation was computed. [2020-09-24 15:57:00,435 INFO L268 CegarLoopResult]: For program point L22-2(line 22) no Hoare annotation was computed. [2020-09-24 15:57:00,435 INFO L268 CegarLoopResult]: For program point L19(lines 19 21) no Hoare annotation was computed. [2020-09-24 15:57:00,436 INFO L268 CegarLoopResult]: For program point L22-3(line 22) no Hoare annotation was computed. [2020-09-24 15:57:00,436 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-09-24 15:57:00,436 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-09-24 15:57:00,436 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-09-24 15:57:00,436 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-09-24 15:57:00,436 INFO L268 CegarLoopResult]: For program point L33(line 33) no Hoare annotation was computed. [2020-09-24 15:57:00,437 INFO L268 CegarLoopResult]: For program point L32(lines 32 36) no Hoare annotation was computed. [2020-09-24 15:57:00,437 INFO L268 CegarLoopResult]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 35) no Hoare annotation was computed. [2020-09-24 15:57:00,437 INFO L271 CegarLoopResult]: At program point L31(line 31) the Hoare annotation is: true [2020-09-24 15:57:00,437 INFO L268 CegarLoopResult]: For program point L31-1(line 31) no Hoare annotation was computed. [2020-09-24 15:57:00,438 INFO L271 CegarLoopResult]: At program point mainENTRY(lines 26 37) the Hoare annotation is: true [2020-09-24 15:57:00,438 INFO L268 CegarLoopResult]: For program point L29(line 29) no Hoare annotation was computed. [2020-09-24 15:57:00,438 INFO L268 CegarLoopResult]: For program point L31-2(line 31) no Hoare annotation was computed. [2020-09-24 15:57:00,438 INFO L268 CegarLoopResult]: For program point L28(lines 28 30) no Hoare annotation was computed. [2020-09-24 15:57:00,438 INFO L268 CegarLoopResult]: For program point L31-3(line 31) no Hoare annotation was computed. [2020-09-24 15:57:00,438 INFO L268 CegarLoopResult]: For program point L27(line 27) no Hoare annotation was computed. [2020-09-24 15:57:00,438 INFO L268 CegarLoopResult]: For program point L27-1(line 27) no Hoare annotation was computed. [2020-09-24 15:57:00,439 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 26 37) no Hoare annotation was computed. [2020-09-24 15:57:00,439 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 26 37) no Hoare annotation was computed. [2020-09-24 15:57:00,439 INFO L268 CegarLoopResult]: For program point L35(line 35) no Hoare annotation was computed. [2020-09-24 15:57:00,446 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.09 03:57:00 BoogieIcfgContainer [2020-09-24 15:57:00,447 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-24 15:57:00,451 INFO L168 Benchmark]: Toolchain (without parser) took 1854.56 ms. Allocated memory was 138.4 MB in the beginning and 205.0 MB in the end (delta: 66.6 MB). Free memory was 100.5 MB in the beginning and 112.5 MB in the end (delta: -12.0 MB). Peak memory consumption was 54.6 MB. Max. memory is 7.1 GB. [2020-09-24 15:57:00,452 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 138.4 MB. Free memory was 118.7 MB in the beginning and 118.3 MB in the end (delta: 419.5 kB). Peak memory consumption was 419.5 kB. Max. memory is 7.1 GB. [2020-09-24 15:57:00,453 INFO L168 Benchmark]: CACSL2BoogieTranslator took 333.10 ms. Allocated memory is still 138.4 MB. Free memory was 99.7 MB in the beginning and 90.4 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.3 MB. Max. memory is 7.1 GB. [2020-09-24 15:57:00,454 INFO L168 Benchmark]: Boogie Preprocessor took 178.99 ms. Allocated memory was 138.4 MB in the beginning and 205.0 MB in the end (delta: 66.6 MB). Free memory was 90.4 MB in the beginning and 183.8 MB in the end (delta: -93.5 MB). Peak memory consumption was 12.8 MB. Max. memory is 7.1 GB. [2020-09-24 15:57:00,455 INFO L168 Benchmark]: RCFGBuilder took 294.84 ms. Allocated memory is still 205.0 MB. Free memory was 183.8 MB in the beginning and 170.9 MB in the end (delta: 12.9 MB). Peak memory consumption was 12.9 MB. Max. memory is 7.1 GB. [2020-09-24 15:57:00,456 INFO L168 Benchmark]: TraceAbstraction took 1037.73 ms. Allocated memory is still 205.0 MB. Free memory was 170.9 MB in the beginning and 112.5 MB in the end (delta: 58.5 MB). Peak memory consumption was 58.5 MB. Max. memory is 7.1 GB. [2020-09-24 15:57:00,460 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 138.4 MB. Free memory was 118.7 MB in the beginning and 118.3 MB in the end (delta: 419.5 kB). Peak memory consumption was 419.5 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 333.10 ms. Allocated memory is still 138.4 MB. Free memory was 99.7 MB in the beginning and 90.4 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 178.99 ms. Allocated memory was 138.4 MB in the beginning and 205.0 MB in the end (delta: 66.6 MB). Free memory was 90.4 MB in the beginning and 183.8 MB in the end (delta: -93.5 MB). Peak memory consumption was 12.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 294.84 ms. Allocated memory is still 205.0 MB. Free memory was 183.8 MB in the beginning and 170.9 MB in the end (delta: 12.9 MB). Peak memory consumption was 12.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1037.73 ms. Allocated memory is still 205.0 MB. Free memory was 170.9 MB in the beginning and 112.5 MB in the end (delta: 58.5 MB). Peak memory consumption was 58.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 35]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 30 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 0.8s, OverallIterations: 2, TraceHistogramMax: 2, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 52 SDtfs, 7 SDslu, 180 SDs, 0 SdLazy, 35 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 25 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=30occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 9 PreInvPairs, 9 NumberOfFragments, 7 HoareAnnotationTreeSize, 9 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 46 NumberOfCodeBlocks, 46 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 44 ConstructedInterpolants, 0 QuantifiedInterpolants, 1788 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 4/4 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...