/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options 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-eb0fd7c [2020-09-21 11:19:39,985 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-21 11:19:39,989 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-21 11:19:40,041 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-21 11:19:40,043 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-21 11:19:40,054 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-21 11:19:40,057 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-21 11:19:40,059 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-21 11:19:40,061 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-21 11:19:40,062 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-21 11:19:40,064 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-21 11:19:40,065 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-21 11:19:40,065 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-21 11:19:40,067 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-21 11:19:40,068 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-21 11:19:40,069 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-21 11:19:40,070 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-21 11:19:40,072 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-21 11:19:40,074 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-21 11:19:40,076 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-21 11:19:40,077 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-21 11:19:40,079 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-21 11:19:40,080 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-21 11:19:40,081 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-21 11:19:40,084 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-21 11:19:40,084 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-21 11:19:40,084 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-21 11:19:40,086 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-21 11:19:40,086 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-21 11:19:40,087 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-21 11:19:40,088 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-21 11:19:40,089 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-21 11:19:40,090 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-21 11:19:40,091 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-21 11:19:40,092 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-21 11:19:40,092 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-21 11:19:40,093 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-21 11:19:40,093 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-21 11:19:40,093 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-21 11:19:40,094 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-21 11:19:40,095 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-21 11:19:40,096 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 [2020-09-21 11:19:40,123 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-21 11:19:40,123 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-21 11:19:40,126 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-21 11:19:40,126 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-21 11:19:40,127 INFO L138 SettingsManager]: * Use SBE=true [2020-09-21 11:19:40,127 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-21 11:19:40,127 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-21 11:19:40,127 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-21 11:19:40,128 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-21 11:19:40,128 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-21 11:19:40,128 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-21 11:19:40,128 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-21 11:19:40,128 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-21 11:19:40,129 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-21 11:19:40,129 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-21 11:19:40,129 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-21 11:19:40,129 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-21 11:19:40,130 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-21 11:19:40,130 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-21 11:19:40,130 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-21 11:19:40,130 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-21 11:19:40,130 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-21 11:19:40,131 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-21 11:19:40,131 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-21 11:19:40,131 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-21 11:19:40,131 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-21 11:19:40,131 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-21 11:19:40,132 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-21 11:19:40,132 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-21 11:19:40,132 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> 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; [2020-09-21 11:19:40,584 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-21 11:19:40,603 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-21 11:19:40,607 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-21 11:19:40,609 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-21 11:19:40,610 INFO L275 PluginConnector]: CDTParser initialized [2020-09-21 11:19:40,611 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive/recHanoi02-2.c [2020-09-21 11:19:40,702 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c79502e15/6b96612ee84648f58f8bdbeace4c871f/FLAG9b1413d7a [2020-09-21 11:19:41,259 INFO L306 CDTParser]: Found 1 translation units. [2020-09-21 11:19:41,260 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/recursive/recHanoi02-2.c [2020-09-21 11:19:41,269 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c79502e15/6b96612ee84648f58f8bdbeace4c871f/FLAG9b1413d7a [2020-09-21 11:19:41,601 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c79502e15/6b96612ee84648f58f8bdbeace4c871f [2020-09-21 11:19:41,614 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-21 11:19:41,619 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-21 11:19:41,620 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-21 11:19:41,620 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-21 11:19:41,625 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-21 11:19:41,626 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 11:19:41" (1/1) ... [2020-09-21 11:19:41,630 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@697b2ada and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:19:41, skipping insertion in model container [2020-09-21 11:19:41,631 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 11:19:41" (1/1) ... [2020-09-21 11:19:41,640 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-21 11:19:41,665 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-21 11:19:41,882 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-21 11:19:41,888 INFO L203 MainTranslator]: Completed pre-run [2020-09-21 11:19:41,909 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-21 11:19:41,928 INFO L208 MainTranslator]: Completed translation [2020-09-21 11:19:41,928 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:19:41 WrapperNode [2020-09-21 11:19:41,929 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-21 11:19:41,930 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-21 11:19:41,930 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-21 11:19:41,930 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-21 11:19:41,946 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:19:41" (1/1) ... [2020-09-21 11:19:41,947 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:19:41" (1/1) ... [2020-09-21 11:19:41,952 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:19:41" (1/1) ... [2020-09-21 11:19:41,953 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:19:41" (1/1) ... [2020-09-21 11:19:41,957 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:19:41" (1/1) ... [2020-09-21 11:19:41,960 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:19:41" (1/1) ... [2020-09-21 11:19:41,961 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:19:41" (1/1) ... [2020-09-21 11:19:41,963 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-21 11:19:41,964 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-21 11:19:41,964 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-21 11:19:41,964 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-21 11:19:41,965 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:19:41" (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 [2020-09-21 11:19:42,127 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-21 11:19:42,127 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-21 11:19:42,128 INFO L138 BoogieDeclarations]: Found implementation of procedure hanoi [2020-09-21 11:19:42,128 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-21 11:19:42,128 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-21 11:19:42,128 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-21 11:19:42,128 INFO L130 BoogieDeclarations]: Found specification of procedure hanoi [2020-09-21 11:19:42,128 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-21 11:19:42,129 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-21 11:19:42,129 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-21 11:19:42,328 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-21 11:19:42,328 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-21 11:19:42,333 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 11:19:42 BoogieIcfgContainer [2020-09-21 11:19:42,333 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-21 11:19:42,334 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-21 11:19:42,334 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-21 11:19:42,338 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-21 11:19:42,339 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.09 11:19:41" (1/3) ... [2020-09-21 11:19:42,340 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e7fee34 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 11:19:42, skipping insertion in model container [2020-09-21 11:19:42,340 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:19:41" (2/3) ... [2020-09-21 11:19:42,341 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e7fee34 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 11:19:42, skipping insertion in model container [2020-09-21 11:19:42,341 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 11:19:42" (3/3) ... [2020-09-21 11:19:42,343 INFO L109 eAbstractionObserver]: Analyzing ICFG recHanoi02-2.c [2020-09-21 11:19:42,355 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-21 11:19:42,366 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-21 11:19:42,389 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-21 11:19:42,422 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-21 11:19:42,422 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-21 11:19:42,422 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-21 11:19:42,422 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-21 11:19:42,423 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-21 11:19:42,423 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-21 11:19:42,423 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-21 11:19:42,423 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-21 11:19:42,447 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states. [2020-09-21 11:19:42,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-09-21 11:19:42,456 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:19:42,457 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:19:42,458 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:19:42,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:19:42,464 INFO L82 PathProgramCache]: Analyzing trace with hash 913793727, now seen corresponding path program 1 times [2020-09-21 11:19:42,473 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:19:42,474 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1506967715] [2020-09-21 11:19:42,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:19:42,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:19:42,635 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:19:42,635 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:19:42,635 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:19:42,636 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:19:42,636 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-21 11:19:42,636 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:19:42,636 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-09-21 11:19:42,637 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:19:42,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:19:42,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-09-21 11:19:42,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:19:42,638 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:19:42,717 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:19:42,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:19:42,720 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:19:42,721 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:19:42,721 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:19:42,721 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:19:42,722 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:19:42,722 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:19:42,722 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:19:42,722 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:19:42,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:19:42,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:19:42,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:19:42,723 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:19:42,728 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:19:42,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:19:42,738 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:19:42,738 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:19:42,738 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:19:42,739 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:19:42,739 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:19:42,739 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:19:42,739 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-21 11:19:42,740 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:19:42,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-21 11:19:42,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:19:42,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:19:42,741 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:19:42,762 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:19:42,763 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1506967715] [2020-09-21 11:19:42,765 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:19:42,765 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-21 11:19:42,767 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [20832231] [2020-09-21 11:19:42,772 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-21 11:19:42,772 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:19:42,786 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-21 11:19:42,787 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-21 11:19:42,789 INFO L87 Difference]: Start difference. First operand 21 states. Second operand 5 states. [2020-09-21 11:19:42,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:19:42,850 INFO L93 Difference]: Finished difference Result 33 states and 37 transitions. [2020-09-21 11:19:42,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-21 11:19:42,858 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2020-09-21 11:19:42,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:19:42,901 INFO L225 Difference]: With dead ends: 33 [2020-09-21 11:19:42,902 INFO L226 Difference]: Without dead ends: 19 [2020-09-21 11:19:42,914 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-21 11:19:42,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2020-09-21 11:19:43,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2020-09-21 11:19:43,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2020-09-21 11:19:43,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 20 transitions. [2020-09-21 11:19:43,026 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 20 transitions. Word has length 14 [2020-09-21 11:19:43,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:19:43,029 INFO L479 AbstractCegarLoop]: Abstraction has 19 states and 20 transitions. [2020-09-21 11:19:43,029 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-21 11:19:43,029 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 20 transitions. [2020-09-21 11:19:43,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-09-21 11:19:43,032 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:19:43,033 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:19:43,033 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-21 11:19:43,034 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:19:43,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:19:43,035 INFO L82 PathProgramCache]: Analyzing trace with hash -1998834103, now seen corresponding path program 1 times [2020-09-21 11:19:43,036 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:19:43,037 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1322491734] [2020-09-21 11:19:43,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:19:43,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:19:43,143 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:19:43,144 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:19:43,146 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:19:43,147 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:19:43,147 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-21 11:19:43,147 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:19:43,147 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-09-21 11:19:43,147 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:19:43,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-21 11:19:43,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-09-21 11:19:43,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-21 11:19:43,155 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 7 [2020-09-21 11:19:43,210 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:19:43,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:19:43,216 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:19:43,218 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:19:43,219 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:19:43,219 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:19:43,219 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:19:43,219 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:19:43,220 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 11:19:43,220 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:19:43,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:19:43,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:19:43,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:19:43,221 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:19:43,224 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:19:43,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:19:43,251 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:19:43,251 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:19:43,252 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:19:43,252 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:19:43,252 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-09-21 11:19:43,253 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:19:43,253 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-21 11:19:43,253 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:19:43,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 11:19:43,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:19:43,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-21 11:19:43,254 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:19:43,288 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:19:43,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:19:43,296 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:19:43,297 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:19:43,297 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:19:43,297 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:19:43,298 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:19:43,298 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:19:43,298 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 11:19:43,298 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:19:43,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-21 11:19:43,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:19:43,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:19:43,300 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:19:43,321 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-09-21 11:19:43,322 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1322491734] [2020-09-21 11:19:43,322 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:19:43,323 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-21 11:19:43,323 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1468526862] [2020-09-21 11:19:43,325 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-21 11:19:43,326 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:19:43,326 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-21 11:19:43,326 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-09-21 11:19:43,327 INFO L87 Difference]: Start difference. First operand 19 states and 20 transitions. Second operand 7 states. [2020-09-21 11:19:43,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:19:43,351 INFO L93 Difference]: Finished difference Result 19 states and 20 transitions. [2020-09-21 11:19:43,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-21 11:19:43,351 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 20 [2020-09-21 11:19:43,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:19:43,352 INFO L225 Difference]: With dead ends: 19 [2020-09-21 11:19:43,352 INFO L226 Difference]: Without dead ends: 0 [2020-09-21 11:19:43,354 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-09-21 11:19:43,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-21 11:19:43,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-21 11:19:43,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-21 11:19:43,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-21 11:19:43,355 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 20 [2020-09-21 11:19:43,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:19:43,356 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-21 11:19:43,356 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-21 11:19:43,356 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-21 11:19:43,356 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-21 11:19:43,356 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-21 11:19:43,359 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-21 11:19:43,402 INFO L271 CegarLoopResult]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2020-09-21 11:19:43,402 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-09-21 11:19:43,402 INFO L268 CegarLoopResult]: For program point hanoiEXIT(lines 18 23) no Hoare annotation was computed. [2020-09-21 11:19:43,403 INFO L271 CegarLoopResult]: At program point hanoiENTRY(lines 18 23) the Hoare annotation is: true [2020-09-21 11:19:43,403 INFO L268 CegarLoopResult]: For program point hanoiFINAL(lines 18 23) no Hoare annotation was computed. [2020-09-21 11:19:43,403 INFO L271 CegarLoopResult]: At program point L22(line 22) the Hoare annotation is: true [2020-09-21 11:19:43,403 INFO L268 CegarLoopResult]: For program point L22-1(line 22) no Hoare annotation was computed. [2020-09-21 11:19:43,403 INFO L268 CegarLoopResult]: For program point L19(lines 19 21) no Hoare annotation was computed. [2020-09-21 11:19:43,403 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-09-21 11:19:43,404 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-09-21 11:19:43,404 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-09-21 11:19:43,404 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-09-21 11:19:43,404 INFO L268 CegarLoopResult]: For program point L32(lines 32 36) no Hoare annotation was computed. [2020-09-21 11:19:43,404 INFO L268 CegarLoopResult]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 35) no Hoare annotation was computed. [2020-09-21 11:19:43,405 INFO L271 CegarLoopResult]: At program point L31(line 31) the Hoare annotation is: true [2020-09-21 11:19:43,405 INFO L268 CegarLoopResult]: For program point L31-1(line 31) no Hoare annotation was computed. [2020-09-21 11:19:43,405 INFO L271 CegarLoopResult]: At program point mainENTRY(lines 26 37) the Hoare annotation is: true [2020-09-21 11:19:43,405 INFO L268 CegarLoopResult]: For program point L28(lines 28 30) no Hoare annotation was computed. [2020-09-21 11:19:43,405 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 26 37) no Hoare annotation was computed. [2020-09-21 11:19:43,405 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 26 37) no Hoare annotation was computed. [2020-09-21 11:19:43,406 INFO L268 CegarLoopResult]: For program point L35(line 35) no Hoare annotation was computed. [2020-09-21 11:19:43,413 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.09 11:19:43 BoogieIcfgContainer [2020-09-21 11:19:43,413 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-21 11:19:43,417 INFO L168 Benchmark]: Toolchain (without parser) took 1800.08 ms. Allocated memory was 139.5 MB in the beginning and 202.9 MB in the end (delta: 63.4 MB). Free memory was 103.4 MB in the beginning and 118.2 MB in the end (delta: -14.9 MB). Peak memory consumption was 48.6 MB. Max. memory is 7.1 GB. [2020-09-21 11:19:43,418 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 139.5 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-09-21 11:19:43,420 INFO L168 Benchmark]: CACSL2BoogieTranslator took 309.23 ms. Allocated memory is still 139.5 MB. Free memory was 102.7 MB in the beginning and 93.1 MB in the end (delta: 9.7 MB). Peak memory consumption was 9.7 MB. Max. memory is 7.1 GB. [2020-09-21 11:19:43,420 INFO L168 Benchmark]: Boogie Preprocessor took 33.59 ms. Allocated memory is still 139.5 MB. Free memory was 93.1 MB in the beginning and 91.7 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2020-09-21 11:19:43,422 INFO L168 Benchmark]: RCFGBuilder took 369.41 ms. Allocated memory was 139.5 MB in the beginning and 202.9 MB in the end (delta: 63.4 MB). Free memory was 91.5 MB in the beginning and 170.5 MB in the end (delta: -79.0 MB). Peak memory consumption was 12.3 MB. Max. memory is 7.1 GB. [2020-09-21 11:19:43,422 INFO L168 Benchmark]: TraceAbstraction took 1079.35 ms. Allocated memory is still 202.9 MB. Free memory was 170.5 MB in the beginning and 118.2 MB in the end (delta: 52.2 MB). Peak memory consumption was 52.2 MB. Max. memory is 7.1 GB. [2020-09-21 11:19:43,426 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 139.5 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 309.23 ms. Allocated memory is still 139.5 MB. Free memory was 102.7 MB in the beginning and 93.1 MB in the end (delta: 9.7 MB). Peak memory consumption was 9.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 33.59 ms. Allocated memory is still 139.5 MB. Free memory was 93.1 MB in the beginning and 91.7 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 369.41 ms. Allocated memory was 139.5 MB in the beginning and 202.9 MB in the end (delta: 63.4 MB). Free memory was 91.5 MB in the beginning and 170.5 MB in the end (delta: -79.0 MB). Peak memory consumption was 12.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1079.35 ms. Allocated memory is still 202.9 MB. Free memory was 170.5 MB in the beginning and 118.2 MB in the end (delta: 52.2 MB). Peak memory consumption was 52.2 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, 21 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 0.9s, OverallIterations: 2, TraceHistogramMax: 2, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 39 SDtfs, 2 SDslu, 137 SDs, 0 SdLazy, 20 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 22 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=21occurred 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, 34 NumberOfCodeBlocks, 34 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 32 ConstructedInterpolants, 0 QuantifiedInterpolants, 900 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...