/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 enumeration-timeout=1000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLEST --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/recHanoi03-2.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 19:18:33,436 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 19:18:33,440 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 19:18:33,467 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 19:18:33,468 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 19:18:33,469 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 19:18:33,471 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 19:18:33,473 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 19:18:33,475 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 19:18:33,476 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 19:18:33,478 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 19:18:33,479 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 19:18:33,479 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 19:18:33,481 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 19:18:33,482 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 19:18:33,483 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 19:18:33,484 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 19:18:33,486 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 19:18:33,488 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 19:18:33,490 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 19:18:33,492 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 19:18:33,493 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 19:18:33,494 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 19:18:33,495 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 19:18:33,498 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 19:18:33,498 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 19:18:33,499 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 19:18:33,500 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 19:18:33,500 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 19:18:33,501 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 19:18:33,502 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 19:18:33,503 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 19:18:33,504 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 19:18:33,505 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 19:18:33,506 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 19:18:33,506 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 19:18:33,507 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 19:18:33,507 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 19:18:33,508 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 19:18:33,509 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 19:18:33,510 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 19:18:33,511 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 19:18:33,563 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 19:18:33,564 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 19:18:33,565 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 19:18:33,565 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 19:18:33,565 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 19:18:33,566 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 19:18:33,570 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 19:18:33,570 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 19:18:33,570 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 19:18:33,571 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 19:18:33,571 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 19:18:33,571 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 19:18:33,571 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 19:18:33,571 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 19:18:33,572 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 19:18:33,572 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 19:18:33,572 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 19:18:33,572 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 19:18:33,572 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 19:18:33,573 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 19:18:33,574 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 19:18:33,575 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 19:18:33,575 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 19:18:33,575 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 19:18:33,575 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 19:18:33,576 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 19:18:33,576 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 19:18:33,576 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 19:18:33,577 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 19:18:33,577 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;enumeration-timeout=1000;interpolation-heuristic=SMALLEST;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;enumeration-timeout=1000;interpolation-heuristic=SMALLEST;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;enumeration-timeout=1000;interpolation-heuristic=SMALLEST;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;enumeration-timeout=1000;interpolation-heuristic=SMALLEST;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;enumeration-timeout=1000;interpolation-heuristic=SMALLEST;log-additional-information=true; [2020-09-24 19:18:34,026 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 19:18:34,044 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 19:18:34,049 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 19:18:34,050 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 19:18:34,051 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 19:18:34,052 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive/recHanoi03-2.c [2020-09-24 19:18:34,150 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/116d9ad5b/0cb9f77df3024cfabd2ed70bc570e22b/FLAG39a3c544b [2020-09-24 19:18:34,702 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 19:18:34,703 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/recursive/recHanoi03-2.c [2020-09-24 19:18:34,712 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/116d9ad5b/0cb9f77df3024cfabd2ed70bc570e22b/FLAG39a3c544b [2020-09-24 19:18:35,046 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/116d9ad5b/0cb9f77df3024cfabd2ed70bc570e22b [2020-09-24 19:18:35,059 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 19:18:35,065 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 19:18:35,066 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 19:18:35,067 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 19:18:35,071 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 19:18:35,072 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 07:18:35" (1/1) ... [2020-09-24 19:18:35,077 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ad15a05 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:18:35, skipping insertion in model container [2020-09-24 19:18:35,077 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 07:18:35" (1/1) ... [2020-09-24 19:18:35,086 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 19:18:35,112 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 19:18:35,319 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 19:18:35,325 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 19:18:35,344 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 19:18:35,361 INFO L208 MainTranslator]: Completed translation [2020-09-24 19:18:35,361 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:18:35 WrapperNode [2020-09-24 19:18:35,361 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 19:18:35,362 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 19:18:35,362 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 19:18:35,363 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 19:18:35,377 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:18:35" (1/1) ... [2020-09-24 19:18:35,377 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:18:35" (1/1) ... [2020-09-24 19:18:35,458 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:18:35" (1/1) ... [2020-09-24 19:18:35,458 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:18:35" (1/1) ... [2020-09-24 19:18:35,466 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:18:35" (1/1) ... [2020-09-24 19:18:35,470 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:18:35" (1/1) ... [2020-09-24 19:18:35,471 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:18:35" (1/1) ... [2020-09-24 19:18:35,473 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 19:18:35,473 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 19:18:35,473 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 19:18:35,473 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 19:18:35,474 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:18:35" (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 19:18:35,548 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 19:18:35,548 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 19:18:35,548 INFO L138 BoogieDeclarations]: Found implementation of procedure hanoi [2020-09-24 19:18:35,548 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 19:18:35,548 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 19:18:35,549 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 19:18:35,549 INFO L130 BoogieDeclarations]: Found specification of procedure hanoi [2020-09-24 19:18:35,549 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 19:18:35,549 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 19:18:35,549 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 19:18:35,813 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 19:18:35,813 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-24 19:18:35,819 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 07:18:35 BoogieIcfgContainer [2020-09-24 19:18:35,819 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 19:18:35,831 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 19:18:35,831 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 19:18:35,843 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 19:18:35,845 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 07:18:35" (1/3) ... [2020-09-24 19:18:35,847 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c1a68cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 07:18:35, skipping insertion in model container [2020-09-24 19:18:35,849 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:18:35" (2/3) ... [2020-09-24 19:18:35,850 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c1a68cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 07:18:35, skipping insertion in model container [2020-09-24 19:18:35,852 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 07:18:35" (3/3) ... [2020-09-24 19:18:35,855 INFO L109 eAbstractionObserver]: Analyzing ICFG recHanoi03-2.c [2020-09-24 19:18:35,871 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 19:18:35,883 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 19:18:35,906 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 19:18:35,935 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 19:18:35,935 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 19:18:35,935 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 19:18:35,936 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 19:18:35,936 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 19:18:35,936 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 19:18:35,936 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 19:18:35,936 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 19:18:35,958 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states. [2020-09-24 19:18:35,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-09-24 19:18:35,967 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:18:35,968 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 19:18:35,969 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:18:35,975 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:18:35,975 INFO L82 PathProgramCache]: Analyzing trace with hash 607163649, now seen corresponding path program 1 times [2020-09-24 19:18:35,987 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:18:35,987 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [456748454] [2020-09-24 19:18:35,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:18:36,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:18:36,144 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:36,374 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:18:36,375 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-09-24 19:18:36,375 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:18:36,375 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 256 [2020-09-24 19:18:36,377 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:18:36,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 19:18:36,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-24 19:18:36,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-24 19:18:36,378 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-24 19:18:36,462 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:18:36,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:18:36,465 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:36,467 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:18:36,468 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:18:36,468 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:18:36,468 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:18:36,469 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:18:36,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:18:36,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:18:36,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:18:36,470 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:18:36,474 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-24 19:18:36,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:18:36,483 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:36,503 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:18:36,503 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:18:36,504 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:18:36,504 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-09-24 19:18:36,504 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:18:36,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 19:18:36,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:18:36,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 19:18:36,506 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:18:36,598 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 19:18:36,599 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [456748454] [2020-09-24 19:18:36,602 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:18:36,602 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-24 19:18:36,603 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1381194460] [2020-09-24 19:18:36,610 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-24 19:18:36,611 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:18:36,628 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-24 19:18:36,630 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-09-24 19:18:36,632 INFO L87 Difference]: Start difference. First operand 30 states. Second operand 7 states. [2020-09-24 19:18:36,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:18:36,809 INFO L93 Difference]: Finished difference Result 45 states and 49 transitions. [2020-09-24 19:18:36,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-24 19:18:36,812 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 19 [2020-09-24 19:18:36,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:18:36,826 INFO L225 Difference]: With dead ends: 45 [2020-09-24 19:18:36,826 INFO L226 Difference]: Without dead ends: 26 [2020-09-24 19:18:36,831 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2020-09-24 19:18:36,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2020-09-24 19:18:36,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2020-09-24 19:18:36,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2020-09-24 19:18:36,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 27 transitions. [2020-09-24 19:18:36,890 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 27 transitions. Word has length 19 [2020-09-24 19:18:36,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:18:36,891 INFO L479 AbstractCegarLoop]: Abstraction has 26 states and 27 transitions. [2020-09-24 19:18:36,891 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-24 19:18:36,891 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 27 transitions. [2020-09-24 19:18:36,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-09-24 19:18:36,894 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:18:36,894 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 19:18:36,894 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 19:18:36,895 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:18:36,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:18:36,895 INFO L82 PathProgramCache]: Analyzing trace with hash 1887435767, now seen corresponding path program 1 times [2020-09-24 19:18:36,895 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:18:36,896 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1014935917] [2020-09-24 19:18:36,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:18:36,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:18:36,926 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:37,222 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:18:37,223 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-09-24 19:18:37,223 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:18:37,223 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 308 [2020-09-24 19:18:37,224 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:18:37,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-24 19:18:37,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-24 19:18:37,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-24 19:18:37,226 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:18:37,256 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:18:37,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:18:37,259 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:37,260 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:18:37,260 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:18:37,261 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:18:37,261 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:18:37,261 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:18:37,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:18:37,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:18:37,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:18:37,263 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:18:37,264 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-24 19:18:37,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:18:37,276 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:37,302 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:18:37,303 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-24 19:18:37,303 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:18:37,303 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-09-24 19:18:37,304 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:18:37,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-24 19:18:37,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:18:37,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-24 19:18:37,305 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:18:37,344 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:18:37,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:18:37,351 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:37,365 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:18:37,365 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:18:37,366 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:18:37,366 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-24 19:18:37,366 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:18:37,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 19:18:37,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:18:37,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 19:18:37,367 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:18:37,434 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-09-24 19:18:37,435 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1014935917] [2020-09-24 19:18:37,435 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 19:18:37,436 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-09-24 19:18:37,436 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1096559485] [2020-09-24 19:18:37,438 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-24 19:18:37,438 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:18:37,439 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-24 19:18:37,439 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-24 19:18:37,439 INFO L87 Difference]: Start difference. First operand 26 states and 27 transitions. Second operand 10 states. [2020-09-24 19:18:37,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:18:37,654 INFO L93 Difference]: Finished difference Result 37 states and 38 transitions. [2020-09-24 19:18:37,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-24 19:18:37,655 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 27 [2020-09-24 19:18:37,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:18:37,656 INFO L225 Difference]: With dead ends: 37 [2020-09-24 19:18:37,657 INFO L226 Difference]: Without dead ends: 31 [2020-09-24 19:18:37,659 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=187, Unknown=0, NotChecked=0, Total=240 [2020-09-24 19:18:37,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2020-09-24 19:18:37,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2020-09-24 19:18:37,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2020-09-24 19:18:37,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 32 transitions. [2020-09-24 19:18:37,673 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 32 transitions. Word has length 27 [2020-09-24 19:18:37,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:18:37,675 INFO L479 AbstractCegarLoop]: Abstraction has 31 states and 32 transitions. [2020-09-24 19:18:37,675 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-24 19:18:37,675 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 32 transitions. [2020-09-24 19:18:37,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-09-24 19:18:37,678 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:18:37,679 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 19:18:37,679 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 19:18:37,680 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:18:37,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:18:37,680 INFO L82 PathProgramCache]: Analyzing trace with hash 1929059777, now seen corresponding path program 2 times [2020-09-24 19:18:37,680 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:18:37,681 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1682624076] [2020-09-24 19:18:37,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:18:37,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:18:37,714 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:38,074 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:18:38,074 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-09-24 19:18:38,075 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:18:38,075 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 370 [2020-09-24 19:18:38,075 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:18:38,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-24 19:18:38,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-24 19:18:38,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-24 19:18:38,076 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:18:38,102 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:18:38,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:18:38,104 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:38,106 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:18:38,106 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:18:38,106 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:18:38,106 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:18:38,107 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:18:38,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:18:38,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:18:38,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:18:38,108 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:18:38,109 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-24 19:18:38,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:18:38,129 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:38,187 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:18:38,187 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-24 19:18:38,188 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:18:38,188 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 63 [2020-09-24 19:18:38,188 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:18:38,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-24 19:18:38,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:18:38,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-24 19:18:38,189 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:18:38,232 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:18:38,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:18:38,242 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:38,279 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:18:38,279 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-24 19:18:38,279 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:18:38,280 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-09-24 19:18:38,280 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:18:38,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-24 19:18:38,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:18:38,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-24 19:18:38,282 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:18:38,344 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:18:38,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:18:38,352 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:38,371 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:18:38,371 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:18:38,372 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:18:38,372 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-09-24 19:18:38,372 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:18:38,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 19:18:38,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:18:38,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 19:18:38,377 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-24 19:18:38,438 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 1 proven. 11 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-09-24 19:18:38,438 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1682624076] [2020-09-24 19:18:38,438 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 19:18:38,439 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-09-24 19:18:38,439 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [193348247] [2020-09-24 19:18:38,440 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-09-24 19:18:38,442 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:18:38,442 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-09-24 19:18:38,444 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2020-09-24 19:18:38,444 INFO L87 Difference]: Start difference. First operand 31 states and 32 transitions. Second operand 12 states. [2020-09-24 19:18:38,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:18:38,732 INFO L93 Difference]: Finished difference Result 42 states and 43 transitions. [2020-09-24 19:18:38,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-24 19:18:38,733 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 35 [2020-09-24 19:18:38,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:18:38,735 INFO L225 Difference]: With dead ends: 42 [2020-09-24 19:18:38,735 INFO L226 Difference]: Without dead ends: 36 [2020-09-24 19:18:38,736 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=77, Invalid=343, Unknown=0, NotChecked=0, Total=420 [2020-09-24 19:18:38,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2020-09-24 19:18:38,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2020-09-24 19:18:38,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2020-09-24 19:18:38,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 37 transitions. [2020-09-24 19:18:38,744 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 37 transitions. Word has length 35 [2020-09-24 19:18:38,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:18:38,745 INFO L479 AbstractCegarLoop]: Abstraction has 36 states and 37 transitions. [2020-09-24 19:18:38,745 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-09-24 19:18:38,745 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 37 transitions. [2020-09-24 19:18:38,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2020-09-24 19:18:38,747 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:18:38,748 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 19:18:38,748 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 19:18:38,748 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:18:38,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:18:38,749 INFO L82 PathProgramCache]: Analyzing trace with hash -1069340361, now seen corresponding path program 3 times [2020-09-24 19:18:38,749 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:18:38,750 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [788651276] [2020-09-24 19:18:38,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:18:38,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:18:38,775 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:39,145 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:18:39,145 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-09-24 19:18:39,146 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:18:39,146 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 380 [2020-09-24 19:18:39,146 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:18:39,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-24 19:18:39,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-24 19:18:39,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 41 [2020-09-24 19:18:39,147 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:18:39,168 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:18:39,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:18:39,170 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:39,171 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:18:39,171 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:18:39,172 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:18:39,172 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 19:18:39,172 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:18:39,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:18:39,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:18:39,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:18:39,173 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:18:39,174 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-24 19:18:39,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:18:39,186 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:39,240 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:18:39,241 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-24 19:18:39,241 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:18:39,241 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-09-24 19:18:39,242 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:18:39,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-09-24 19:18:39,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:18:39,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-24 19:18:39,242 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:18:39,277 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:18:39,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:18:39,286 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:39,327 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:18:39,327 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-24 19:18:39,328 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:18:39,328 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-09-24 19:18:39,328 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:18:39,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-24 19:18:39,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:18:39,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-24 19:18:39,329 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:18:39,376 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:18:39,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:18:39,383 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:39,405 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:18:39,406 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-24 19:18:39,406 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:18:39,406 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-09-24 19:18:39,407 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:18:39,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-24 19:18:39,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:18:39,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-24 19:18:39,408 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:18:39,459 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:18:39,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:18:39,463 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:39,473 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:18:39,473 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:18:39,473 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:18:39,474 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-24 19:18:39,474 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:18:39,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 19:18:39,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:18:39,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 19:18:39,475 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:18:39,524 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 2 proven. 24 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-09-24 19:18:39,525 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [788651276] [2020-09-24 19:18:39,525 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 19:18:39,525 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-09-24 19:18:39,525 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1373722304] [2020-09-24 19:18:39,526 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-09-24 19:18:39,526 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:18:39,526 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-09-24 19:18:39,527 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2020-09-24 19:18:39,527 INFO L87 Difference]: Start difference. First operand 36 states and 37 transitions. Second operand 14 states. [2020-09-24 19:18:39,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:18:39,854 INFO L93 Difference]: Finished difference Result 47 states and 48 transitions. [2020-09-24 19:18:39,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-09-24 19:18:39,854 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 43 [2020-09-24 19:18:39,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:18:39,856 INFO L225 Difference]: With dead ends: 47 [2020-09-24 19:18:39,856 INFO L226 Difference]: Without dead ends: 41 [2020-09-24 19:18:39,857 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=97, Invalid=553, Unknown=0, NotChecked=0, Total=650 [2020-09-24 19:18:39,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2020-09-24 19:18:39,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2020-09-24 19:18:39,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2020-09-24 19:18:39,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 42 transitions. [2020-09-24 19:18:39,864 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 42 transitions. Word has length 43 [2020-09-24 19:18:39,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:18:39,865 INFO L479 AbstractCegarLoop]: Abstraction has 41 states and 42 transitions. [2020-09-24 19:18:39,865 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-09-24 19:18:39,865 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 42 transitions. [2020-09-24 19:18:39,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-09-24 19:18:39,867 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:18:39,867 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 19:18:39,867 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 19:18:39,868 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:18:39,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:18:39,868 INFO L82 PathProgramCache]: Analyzing trace with hash -287672703, now seen corresponding path program 4 times [2020-09-24 19:18:39,868 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:18:39,869 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1780410364] [2020-09-24 19:18:39,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:18:39,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:18:39,891 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:40,020 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:40,385 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:18:40,386 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 68 [2020-09-24 19:18:40,386 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 19:18:40,386 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 504 [2020-09-24 19:18:40,387 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:18:40,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-24 19:18:40,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-09-24 19:18:40,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-09-24 19:18:40,388 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:18:40,417 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:18:40,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:18:40,419 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:40,419 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:18:40,420 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:18:40,420 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:18:40,420 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 19:18:40,420 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:18:40,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:18:40,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:18:40,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:18:40,421 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:18:40,422 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-24 19:18:40,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:18:40,439 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:40,532 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:40,542 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:18:40,543 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-24 19:18:40,543 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 19:18:40,543 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 111 [2020-09-24 19:18:40,544 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:18:40,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-24 19:18:40,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:18:40,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-09-24 19:18:40,545 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:18:40,572 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:18:40,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:18:40,586 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:40,695 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:18:40,695 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-24 19:18:40,695 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:18:40,695 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 115 [2020-09-24 19:18:40,696 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:18:40,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-24 19:18:40,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:18:40,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-09-24 19:18:40,697 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:18:40,724 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:18:40,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:18:40,734 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:40,800 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:18:40,800 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-24 19:18:40,801 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:18:40,801 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 70 [2020-09-24 19:18:40,801 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:18:40,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 19:18:40,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:18:40,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-09-24 19:18:40,802 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:18:40,833 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:18:40,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:18:40,856 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:40,887 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:18:40,888 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-24 19:18:40,888 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:18:40,888 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-09-24 19:18:40,888 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:18:40,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 19:18:40,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:18:40,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-24 19:18:40,889 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:18:40,921 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:18:40,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:18:40,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:18:40,934 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:18:40,935 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:18:40,935 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:18:40,935 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-24 19:18:40,936 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:18:40,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 19:18:40,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:18:40,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 19:18:40,937 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:18:40,958 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 30 proven. 8 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2020-09-24 19:18:40,959 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1780410364] [2020-09-24 19:18:40,959 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 19:18:40,959 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-09-24 19:18:40,960 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [440047394] [2020-09-24 19:18:40,960 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-09-24 19:18:40,961 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:18:40,961 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-09-24 19:18:40,961 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2020-09-24 19:18:40,961 INFO L87 Difference]: Start difference. First operand 41 states and 42 transitions. Second operand 14 states. [2020-09-24 19:18:41,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:18:41,115 INFO L93 Difference]: Finished difference Result 41 states and 42 transitions. [2020-09-24 19:18:41,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-09-24 19:18:41,116 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 51 [2020-09-24 19:18:41,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:18:41,116 INFO L225 Difference]: With dead ends: 41 [2020-09-24 19:18:41,117 INFO L226 Difference]: Without dead ends: 0 [2020-09-24 19:18:41,118 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=86, Invalid=334, Unknown=0, NotChecked=0, Total=420 [2020-09-24 19:18:41,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-24 19:18:41,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-24 19:18:41,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-24 19:18:41,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-24 19:18:41,119 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 51 [2020-09-24 19:18:41,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:18:41,119 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-24 19:18:41,119 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-09-24 19:18:41,120 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-24 19:18:41,120 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-24 19:18:41,120 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-24 19:18:41,123 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-24 19:18:41,147 INFO L271 CegarLoopResult]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2020-09-24 19:18:41,147 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-09-24 19:18:41,147 INFO L268 CegarLoopResult]: For program point L17(lines 17 19) no Hoare annotation was computed. [2020-09-24 19:18:41,148 INFO L268 CegarLoopResult]: For program point L20-3(line 20) no Hoare annotation was computed. [2020-09-24 19:18:41,148 INFO L268 CegarLoopResult]: For program point hanoiEXIT(lines 16 21) no Hoare annotation was computed. [2020-09-24 19:18:41,148 INFO L271 CegarLoopResult]: At program point hanoiENTRY(lines 16 21) the Hoare annotation is: true [2020-09-24 19:18:41,148 INFO L268 CegarLoopResult]: For program point hanoiFINAL(lines 16 21) no Hoare annotation was computed. [2020-09-24 19:18:41,148 INFO L264 CegarLoopResult]: At program point L20(line 20) the Hoare annotation is: (= hanoi_~n |hanoi_#in~n|) [2020-09-24 19:18:41,149 INFO L268 CegarLoopResult]: For program point L20-1(line 20) no Hoare annotation was computed. [2020-09-24 19:18:41,149 INFO L268 CegarLoopResult]: For program point L18(line 18) no Hoare annotation was computed. [2020-09-24 19:18:41,149 INFO L268 CegarLoopResult]: For program point L20-2(line 20) no Hoare annotation was computed. [2020-09-24 19:18:41,149 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-09-24 19:18:41,149 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-09-24 19:18:41,149 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-09-24 19:18:41,150 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-09-24 19:18:41,150 INFO L268 CegarLoopResult]: For program point L33(line 33) no Hoare annotation was computed. [2020-09-24 19:18:41,150 INFO L268 CegarLoopResult]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 33) no Hoare annotation was computed. [2020-09-24 19:18:41,150 INFO L268 CegarLoopResult]: For program point L31(line 31) no Hoare annotation was computed. [2020-09-24 19:18:41,150 INFO L268 CegarLoopResult]: For program point L30(lines 30 34) no Hoare annotation was computed. [2020-09-24 19:18:41,150 INFO L271 CegarLoopResult]: At program point mainENTRY(lines 24 35) the Hoare annotation is: true [2020-09-24 19:18:41,151 INFO L264 CegarLoopResult]: At program point L29(line 29) the Hoare annotation is: (<= main_~n~0 31) [2020-09-24 19:18:41,151 INFO L268 CegarLoopResult]: For program point L29-1(line 29) no Hoare annotation was computed. [2020-09-24 19:18:41,151 INFO L268 CegarLoopResult]: For program point L27(line 27) no Hoare annotation was computed. [2020-09-24 19:18:41,151 INFO L268 CegarLoopResult]: For program point L29-2(line 29) no Hoare annotation was computed. [2020-09-24 19:18:41,151 INFO L268 CegarLoopResult]: For program point L26(lines 26 28) no Hoare annotation was computed. [2020-09-24 19:18:41,151 INFO L268 CegarLoopResult]: For program point L29-3(line 29) no Hoare annotation was computed. [2020-09-24 19:18:41,151 INFO L268 CegarLoopResult]: For program point L25(line 25) no Hoare annotation was computed. [2020-09-24 19:18:41,152 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 24 35) no Hoare annotation was computed. [2020-09-24 19:18:41,152 INFO L268 CegarLoopResult]: For program point L25-1(line 25) no Hoare annotation was computed. [2020-09-24 19:18:41,152 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 24 35) no Hoare annotation was computed. [2020-09-24 19:18:41,159 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.09 07:18:41 BoogieIcfgContainer [2020-09-24 19:18:41,159 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-24 19:18:41,163 INFO L168 Benchmark]: Toolchain (without parser) took 6100.68 ms. Allocated memory was 138.9 MB in the beginning and 288.9 MB in the end (delta: 149.9 MB). Free memory was 103.1 MB in the beginning and 212.1 MB in the end (delta: -109.0 MB). Peak memory consumption was 40.9 MB. Max. memory is 7.1 GB. [2020-09-24 19:18:41,164 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 138.9 MB. Free memory was 120.5 MB in the beginning and 120.2 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-24 19:18:41,164 INFO L168 Benchmark]: CACSL2BoogieTranslator took 295.52 ms. Allocated memory is still 138.9 MB. Free memory was 102.3 MB in the beginning and 92.7 MB in the end (delta: 9.7 MB). Peak memory consumption was 9.7 MB. Max. memory is 7.1 GB. [2020-09-24 19:18:41,165 INFO L168 Benchmark]: Boogie Preprocessor took 110.60 ms. Allocated memory was 138.9 MB in the beginning and 201.9 MB in the end (delta: 62.9 MB). Free memory was 92.7 MB in the beginning and 181.0 MB in the end (delta: -88.3 MB). Peak memory consumption was 12.8 MB. Max. memory is 7.1 GB. [2020-09-24 19:18:41,166 INFO L168 Benchmark]: RCFGBuilder took 346.44 ms. Allocated memory is still 201.9 MB. Free memory was 181.0 MB in the beginning and 167.6 MB in the end (delta: 13.4 MB). Peak memory consumption was 13.4 MB. Max. memory is 7.1 GB. [2020-09-24 19:18:41,167 INFO L168 Benchmark]: TraceAbstraction took 5328.55 ms. Allocated memory was 201.9 MB in the beginning and 288.9 MB in the end (delta: 87.0 MB). Free memory was 167.0 MB in the beginning and 212.1 MB in the end (delta: -45.1 MB). Peak memory consumption was 41.9 MB. Max. memory is 7.1 GB. [2020-09-24 19:18:41,171 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 138.9 MB. Free memory was 120.5 MB in the beginning and 120.2 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 295.52 ms. Allocated memory is still 138.9 MB. Free memory was 102.3 MB in the beginning and 92.7 MB in the end (delta: 9.7 MB). Peak memory consumption was 9.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 110.60 ms. Allocated memory was 138.9 MB in the beginning and 201.9 MB in the end (delta: 62.9 MB). Free memory was 92.7 MB in the beginning and 181.0 MB in the end (delta: -88.3 MB). Peak memory consumption was 12.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 346.44 ms. Allocated memory is still 201.9 MB. Free memory was 181.0 MB in the beginning and 167.6 MB in the end (delta: 13.4 MB). Peak memory consumption was 13.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 5328.55 ms. Allocated memory was 201.9 MB in the beginning and 288.9 MB in the end (delta: 87.0 MB). Free memory was 167.0 MB in the beginning and 212.1 MB in the end (delta: -45.1 MB). Peak memory consumption was 41.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 33]: 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: 5.1s, OverallIterations: 5, TraceHistogramMax: 5, AutomataDifference: 1.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 117 SDtfs, 83 SDslu, 616 SDs, 0 SdLazy, 529 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 127 GetRequests, 42 SyntacticMatches, 1 SemanticMatches, 84 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 177 ImplicationChecksByTransitivity, 1.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=41occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 9 PreInvPairs, 9 NumberOfFragments, 11 HoareAnnotationTreeSize, 9 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 3.5s InterpolantComputationTime, 175 NumberOfCodeBlocks, 175 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 170 ConstructedInterpolants, 0 QuantifiedInterpolants, 20656 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 1 PerfectInterpolantSequences, 75/120 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...