/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=5000 --traceabstraction.additional.smt.options interpolation-heuristic=LOWLEXORDER --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-simple/fibo_7-1.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 21:33:33,462 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 21:33:33,466 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 21:33:33,513 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 21:33:33,514 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 21:33:33,525 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 21:33:33,528 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 21:33:33,531 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 21:33:33,534 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 21:33:33,538 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 21:33:33,539 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 21:33:33,540 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 21:33:33,540 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 21:33:33,543 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 21:33:33,546 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 21:33:33,548 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 21:33:33,550 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 21:33:33,551 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 21:33:33,552 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 21:33:33,560 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 21:33:33,562 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 21:33:33,567 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 21:33:33,568 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 21:33:33,569 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 21:33:33,572 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 21:33:33,572 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 21:33:33,572 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 21:33:33,573 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 21:33:33,573 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 21:33:33,574 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 21:33:33,575 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 21:33:33,576 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 21:33:33,576 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 21:33:33,577 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 21:33:33,578 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 21:33:33,579 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 21:33:33,579 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 21:33:33,580 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 21:33:33,580 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 21:33:33,581 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 21:33:33,581 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 21:33:33,582 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 21:33:33,608 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 21:33:33,608 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 21:33:33,609 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 21:33:33,610 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 21:33:33,610 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 21:33:33,610 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 21:33:33,610 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 21:33:33,611 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 21:33:33,611 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 21:33:33,611 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 21:33:33,611 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 21:33:33,611 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 21:33:33,612 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 21:33:33,612 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 21:33:33,612 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 21:33:33,612 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 21:33:33,612 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 21:33:33,613 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 21:33:33,613 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 21:33:33,613 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 21:33:33,613 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 21:33:33,613 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 21:33:33,614 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 21:33:33,614 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 21:33:33,614 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 21:33:33,614 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 21:33:33,614 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 21:33:33,615 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 21:33:33,615 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 21:33:33,615 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=5000;interpolation-heuristic=LOWLEXORDER;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=5000;interpolation-heuristic=LOWLEXORDER;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=5000;interpolation-heuristic=LOWLEXORDER;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=5000;interpolation-heuristic=LOWLEXORDER;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=5000;interpolation-heuristic=LOWLEXORDER;log-additional-information=true; [2020-09-24 21:33:34,055 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 21:33:34,079 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 21:33:34,085 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 21:33:34,087 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 21:33:34,089 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 21:33:34,090 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive-simple/fibo_7-1.c [2020-09-24 21:33:34,163 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7904a405f/c33b5e642b97473ebc2b729b76859491/FLAGd9e33eb9a [2020-09-24 21:33:34,637 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 21:33:34,638 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/recursive-simple/fibo_7-1.c [2020-09-24 21:33:34,647 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7904a405f/c33b5e642b97473ebc2b729b76859491/FLAGd9e33eb9a [2020-09-24 21:33:34,984 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7904a405f/c33b5e642b97473ebc2b729b76859491 [2020-09-24 21:33:34,997 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 21:33:35,004 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 21:33:35,005 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 21:33:35,005 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 21:33:35,009 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 21:33:35,011 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 09:33:34" (1/1) ... [2020-09-24 21:33:35,015 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51d7e22e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:33:35, skipping insertion in model container [2020-09-24 21:33:35,015 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 09:33:34" (1/1) ... [2020-09-24 21:33:35,024 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 21:33:35,048 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 21:33:35,266 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 21:33:35,271 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 21:33:35,291 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 21:33:35,306 INFO L208 MainTranslator]: Completed translation [2020-09-24 21:33:35,306 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:33:35 WrapperNode [2020-09-24 21:33:35,307 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 21:33:35,307 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 21:33:35,308 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 21:33:35,308 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 21:33:35,321 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:33:35" (1/1) ... [2020-09-24 21:33:35,321 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:33:35" (1/1) ... [2020-09-24 21:33:35,327 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:33:35" (1/1) ... [2020-09-24 21:33:35,327 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:33:35" (1/1) ... [2020-09-24 21:33:35,331 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:33:35" (1/1) ... [2020-09-24 21:33:35,334 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:33:35" (1/1) ... [2020-09-24 21:33:35,335 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:33:35" (1/1) ... [2020-09-24 21:33:35,337 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 21:33:35,337 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 21:33:35,337 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 21:33:35,337 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 21:33:35,338 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:33:35" (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 21:33:35,497 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 21:33:35,497 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 21:33:35,497 INFO L138 BoogieDeclarations]: Found implementation of procedure fibo [2020-09-24 21:33:35,498 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 21:33:35,498 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 21:33:35,499 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 21:33:35,499 INFO L130 BoogieDeclarations]: Found specification of procedure fibo [2020-09-24 21:33:35,499 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 21:33:35,500 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 21:33:35,500 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 21:33:35,707 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 21:33:35,707 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-24 21:33:35,713 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 09:33:35 BoogieIcfgContainer [2020-09-24 21:33:35,713 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 21:33:35,714 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 21:33:35,715 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 21:33:35,718 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 21:33:35,719 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 09:33:34" (1/3) ... [2020-09-24 21:33:35,720 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46862b36 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 09:33:35, skipping insertion in model container [2020-09-24 21:33:35,720 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:33:35" (2/3) ... [2020-09-24 21:33:35,721 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46862b36 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 09:33:35, skipping insertion in model container [2020-09-24 21:33:35,721 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 09:33:35" (3/3) ... [2020-09-24 21:33:35,723 INFO L109 eAbstractionObserver]: Analyzing ICFG fibo_7-1.c [2020-09-24 21:33:35,742 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 21:33:35,752 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 21:33:35,780 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 21:33:35,816 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 21:33:35,816 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 21:33:35,816 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 21:33:35,816 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 21:33:35,817 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 21:33:35,817 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 21:33:35,817 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 21:33:35,817 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 21:33:35,852 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states. [2020-09-24 21:33:35,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-09-24 21:33:35,863 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:33:35,864 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 21:33:35,865 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:33:35,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:33:35,875 INFO L82 PathProgramCache]: Analyzing trace with hash -1756383024, now seen corresponding path program 1 times [2020-09-24 21:33:35,887 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:33:35,888 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1524316721] [2020-09-24 21:33:35,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:33:35,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:33:36,016 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:33:36,061 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:33:36,061 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-24 21:33:36,062 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:33:36,062 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-09-24 21:33:36,063 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:33:36,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 21:33:36,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 21:33:36,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 21:33:36,064 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 21:33:36,140 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:33:36,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:33:36,149 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:33:36,155 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:33:36,155 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:33:36,155 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:33:36,156 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 21:33:36,156 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:33:36,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:33:36,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:33:36,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:33:36,158 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:33:36,164 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-24 21:33:36,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:33:36,188 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:33:36,209 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:33:36,210 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:33:36,210 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:33:36,210 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-09-24 21:33:36,210 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:33:36,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 21:33:36,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 21:33:36,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 21:33:36,211 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:33:36,239 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 21:33:36,240 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1524316721] [2020-09-24 21:33:36,242 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 21:33:36,243 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-24 21:33:36,244 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1853136915] [2020-09-24 21:33:36,251 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-24 21:33:36,251 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 21:33:36,273 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-24 21:33:36,274 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-24 21:33:36,277 INFO L87 Difference]: Start difference. First operand 31 states. Second operand 5 states. [2020-09-24 21:33:36,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 21:33:36,387 INFO L93 Difference]: Finished difference Result 44 states and 50 transitions. [2020-09-24 21:33:36,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-24 21:33:36,389 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2020-09-24 21:33:36,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 21:33:36,402 INFO L225 Difference]: With dead ends: 44 [2020-09-24 21:33:36,402 INFO L226 Difference]: Without dead ends: 28 [2020-09-24 21:33:36,407 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-24 21:33:36,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2020-09-24 21:33:36,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2020-09-24 21:33:36,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2020-09-24 21:33:36,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 32 transitions. [2020-09-24 21:33:36,461 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 32 transitions. Word has length 16 [2020-09-24 21:33:36,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 21:33:36,462 INFO L479 AbstractCegarLoop]: Abstraction has 28 states and 32 transitions. [2020-09-24 21:33:36,462 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-24 21:33:36,462 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 32 transitions. [2020-09-24 21:33:36,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-09-24 21:33:36,465 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:33:36,465 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 21:33:36,465 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 21:33:36,466 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:33:36,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:33:36,466 INFO L82 PathProgramCache]: Analyzing trace with hash -389703589, now seen corresponding path program 1 times [2020-09-24 21:33:36,466 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:33:36,467 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1491958396] [2020-09-24 21:33:36,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:33:36,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:33:36,500 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:33:36,575 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:33:36,575 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-09-24 21:33:36,575 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:33:36,575 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 89 [2020-09-24 21:33:36,576 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:33:36,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 21:33:36,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 21:33:36,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 21:33:36,577 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:33:36,592 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:33:36,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:33:36,595 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:33:36,596 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:33:36,596 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:33:36,597 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:33:36,597 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:33:36,597 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:33:36,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:33:36,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:33:36,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:33:36,598 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:33:36,600 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-24 21:33:36,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:33:36,608 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:33:36,663 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:33:36,663 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 21:33:36,663 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:33:36,664 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 57 [2020-09-24 21:33:36,664 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:33:36,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 21:33:36,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 21:33:36,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 21:33:36,665 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:33:36,709 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 21:33:36,710 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1491958396] [2020-09-24 21:33:36,710 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 21:33:36,710 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-24 21:33:36,711 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [501191459] [2020-09-24 21:33:36,713 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-24 21:33:36,713 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 21:33:36,713 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-24 21:33:36,714 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-24 21:33:36,714 INFO L87 Difference]: Start difference. First operand 28 states and 32 transitions. Second operand 5 states. [2020-09-24 21:33:36,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 21:33:36,793 INFO L93 Difference]: Finished difference Result 36 states and 41 transitions. [2020-09-24 21:33:36,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-24 21:33:36,794 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2020-09-24 21:33:36,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 21:33:36,796 INFO L225 Difference]: With dead ends: 36 [2020-09-24 21:33:36,796 INFO L226 Difference]: Without dead ends: 30 [2020-09-24 21:33:36,797 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-24 21:33:36,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2020-09-24 21:33:36,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 28. [2020-09-24 21:33:36,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2020-09-24 21:33:36,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 32 transitions. [2020-09-24 21:33:36,806 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 32 transitions. Word has length 17 [2020-09-24 21:33:36,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 21:33:36,806 INFO L479 AbstractCegarLoop]: Abstraction has 28 states and 32 transitions. [2020-09-24 21:33:36,806 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-24 21:33:36,806 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 32 transitions. [2020-09-24 21:33:36,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-09-24 21:33:36,808 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:33:36,808 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 21:33:36,808 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 21:33:36,809 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:33:36,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:33:36,809 INFO L82 PathProgramCache]: Analyzing trace with hash 50309368, now seen corresponding path program 1 times [2020-09-24 21:33:36,809 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:33:36,810 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1838386487] [2020-09-24 21:33:36,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:33:36,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:33:36,832 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:33:36,855 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:33:36,902 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:33:37,420 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:33:37,421 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-09-24 21:33:37,421 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 21:33:37,421 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 596 [2020-09-24 21:33:37,422 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:33:37,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 21:33:37,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 21:33:37,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-24 21:33:37,423 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:33:37,438 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:33:37,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:33:37,441 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:33:37,442 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:33:37,442 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:33:37,443 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:33:37,443 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:33:37,443 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:33:37,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:33:37,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:33:37,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:33:37,444 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:33:37,446 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-24 21:33:37,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:33:37,457 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:33:37,492 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:33:37,511 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:33:37,706 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:33:37,707 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-24 21:33:37,707 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 21:33:37,707 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 253 [2020-09-24 21:33:37,707 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:33:37,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 21:33:37,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 21:33:37,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-24 21:33:37,708 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:33:37,747 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 21:33:37,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:33:37,752 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:33:37,762 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:33:37,762 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:33:37,763 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:33:37,763 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-24 21:33:37,763 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:33:37,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 21:33:37,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:33:37,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 21:33:37,764 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:33:37,785 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-24 21:33:37,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:33:37,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:33:37,798 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:33:37,798 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:33:37,799 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:33:37,799 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 21:33:37,799 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:33:37,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:33:37,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:33:37,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 21:33:37,800 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:33:37,806 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 2 proven. 8 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-09-24 21:33:37,807 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1838386487] [2020-09-24 21:33:37,807 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 21:33:37,807 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-24 21:33:37,808 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [259164079] [2020-09-24 21:33:37,808 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-24 21:33:37,808 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 21:33:37,809 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-24 21:33:37,809 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-09-24 21:33:37,809 INFO L87 Difference]: Start difference. First operand 28 states and 32 transitions. Second operand 7 states. [2020-09-24 21:33:37,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 21:33:37,942 INFO L93 Difference]: Finished difference Result 44 states and 54 transitions. [2020-09-24 21:33:37,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-24 21:33:37,943 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 33 [2020-09-24 21:33:37,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 21:33:37,945 INFO L225 Difference]: With dead ends: 44 [2020-09-24 21:33:37,945 INFO L226 Difference]: Without dead ends: 38 [2020-09-24 21:33:37,946 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2020-09-24 21:33:37,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2020-09-24 21:33:37,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 36. [2020-09-24 21:33:37,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2020-09-24 21:33:37,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 44 transitions. [2020-09-24 21:33:37,957 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 44 transitions. Word has length 33 [2020-09-24 21:33:37,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 21:33:37,957 INFO L479 AbstractCegarLoop]: Abstraction has 36 states and 44 transitions. [2020-09-24 21:33:37,957 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-24 21:33:37,957 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 44 transitions. [2020-09-24 21:33:37,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-09-24 21:33:37,959 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:33:37,960 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 21:33:37,960 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 21:33:37,960 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:33:37,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:33:37,960 INFO L82 PathProgramCache]: Analyzing trace with hash 765810174, now seen corresponding path program 1 times [2020-09-24 21:33:37,961 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:33:37,961 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1592096427] [2020-09-24 21:33:37,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:33:37,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:33:37,974 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:33:37,989 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:33:38,033 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:33:38,218 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:33:38,462 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:33:38,462 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-09-24 21:33:38,463 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 21:33:38,463 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 493 [2020-09-24 21:33:38,463 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:33:38,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 21:33:38,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 21:33:38,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-24 21:33:38,464 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:33:38,480 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:33:38,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:33:38,482 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:33:38,483 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:33:38,483 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:33:38,483 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:33:38,484 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 21:33:38,484 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:33:38,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:33:38,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:33:38,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:33:38,485 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:33:38,486 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-24 21:33:38,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:33:38,498 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:33:38,514 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:33:38,538 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:33:38,591 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:33:38,981 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:33:38,981 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-24 21:33:38,982 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 21:33:38,982 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 488 [2020-09-24 21:33:38,982 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:33:38,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 21:33:38,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 21:33:38,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-09-24 21:33:38,983 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:33:39,008 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 21:33:39,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:33:39,013 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:33:39,035 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:33:39,036 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 21:33:39,036 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:33:39,036 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-09-24 21:33:39,036 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:33:39,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 21:33:39,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:33:39,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 21:33:39,037 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:33:39,075 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 21:33:39,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:33:39,079 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:33:39,089 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:33:39,089 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 21:33:39,090 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:33:39,090 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-24 21:33:39,090 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:33:39,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:33:39,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:33:39,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 21:33:39,091 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:33:39,097 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 4 proven. 9 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-09-24 21:33:39,098 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1592096427] [2020-09-24 21:33:39,098 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 21:33:39,098 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-24 21:33:39,099 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1481177402] [2020-09-24 21:33:39,099 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-24 21:33:39,099 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 21:33:39,100 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-24 21:33:39,100 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-09-24 21:33:39,100 INFO L87 Difference]: Start difference. First operand 36 states and 44 transitions. Second operand 7 states. [2020-09-24 21:33:39,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 21:33:39,250 INFO L93 Difference]: Finished difference Result 88 states and 137 transitions. [2020-09-24 21:33:39,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-24 21:33:39,251 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 35 [2020-09-24 21:33:39,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 21:33:39,254 INFO L225 Difference]: With dead ends: 88 [2020-09-24 21:33:39,255 INFO L226 Difference]: Without dead ends: 58 [2020-09-24 21:33:39,256 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-09-24 21:33:39,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2020-09-24 21:33:39,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 50. [2020-09-24 21:33:39,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2020-09-24 21:33:39,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 69 transitions. [2020-09-24 21:33:39,272 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 69 transitions. Word has length 35 [2020-09-24 21:33:39,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 21:33:39,272 INFO L479 AbstractCegarLoop]: Abstraction has 50 states and 69 transitions. [2020-09-24 21:33:39,272 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-24 21:33:39,273 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 69 transitions. [2020-09-24 21:33:39,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-09-24 21:33:39,276 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:33:39,276 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 21:33:39,276 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 21:33:39,276 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:33:39,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:33:39,277 INFO L82 PathProgramCache]: Analyzing trace with hash 1693530075, now seen corresponding path program 1 times [2020-09-24 21:33:39,277 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:33:39,278 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1413625818] [2020-09-24 21:33:39,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:33:39,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:33:39,293 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:33:39,313 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:33:39,348 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:33:39,403 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:33:39,480 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:33:39,625 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:33:39,677 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:33:44,289 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:33:44,299 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 68 [2020-09-24 21:33:44,299 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-24 21:33:44,299 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-09-24 21:33:44,305 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:33:44,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 21:33:44,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 21:33:44,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-24 21:33:44,306 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-09-24 21:33:44,321 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:33:44,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:33:44,322 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:33:44,323 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:33:44,323 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:33:44,324 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:33:44,325 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 21:33:44,325 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:33:44,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:33:44,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:33:44,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:33:44,326 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:33:44,327 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-24 21:33:44,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:33:44,341 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:33:44,369 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:33:44,387 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:33:44,424 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:33:44,687 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:33:44,726 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:33:45,149 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:33:47,736 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:33:47,736 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-09-24 21:33:47,736 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-24 21:33:47,736 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3399 [2020-09-24 21:33:47,737 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:33:47,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 21:33:47,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 21:33:47,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-09-24 21:33:47,737 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:33:47,768 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 21:33:47,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:33:47,780 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:33:47,803 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:33:47,868 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:33:47,897 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:33:47,897 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-24 21:33:47,897 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 21:33:47,898 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 119 [2020-09-24 21:33:47,898 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:33:47,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 21:33:47,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:33:47,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-24 21:33:47,899 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:33:47,923 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 21:33:47,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:33:47,927 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:33:47,931 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:33:47,931 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:33:47,931 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:33:47,932 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 21:33:47,932 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:33:47,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 21:33:47,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:33:47,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 21:33:47,933 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:33:47,945 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-24 21:33:47,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:33:47,948 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:33:47,953 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:33:47,954 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:33:47,954 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:33:47,954 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 21:33:47,954 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:33:47,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:33:47,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:33:47,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 21:33:47,955 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:33:47,958 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-09-24 21:33:47,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:33:47,961 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:33:47,967 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:33:47,967 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 21:33:47,968 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:33:47,968 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 21:33:47,968 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:33:47,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:33:47,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:33:47,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 21:33:47,969 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:33:47,976 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 6 proven. 31 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2020-09-24 21:33:47,977 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1413625818] [2020-09-24 21:33:47,977 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 21:33:47,977 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-09-24 21:33:47,978 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1039315557] [2020-09-24 21:33:47,978 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-24 21:33:47,978 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 21:33:47,979 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-24 21:33:47,979 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-09-24 21:33:47,979 INFO L87 Difference]: Start difference. First operand 50 states and 69 transitions. Second operand 8 states. [2020-09-24 21:33:48,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 21:33:48,208 INFO L93 Difference]: Finished difference Result 94 states and 148 transitions. [2020-09-24 21:33:48,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-24 21:33:48,209 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 51 [2020-09-24 21:33:48,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 21:33:48,214 INFO L225 Difference]: With dead ends: 94 [2020-09-24 21:33:48,214 INFO L226 Difference]: Without dead ends: 88 [2020-09-24 21:33:48,215 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2020-09-24 21:33:48,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2020-09-24 21:33:48,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 82. [2020-09-24 21:33:48,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 82 states. [2020-09-24 21:33:48,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 132 transitions. [2020-09-24 21:33:48,235 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 132 transitions. Word has length 51 [2020-09-24 21:33:48,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 21:33:48,236 INFO L479 AbstractCegarLoop]: Abstraction has 82 states and 132 transitions. [2020-09-24 21:33:48,236 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-24 21:33:48,236 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 132 transitions. [2020-09-24 21:33:48,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2020-09-24 21:33:48,246 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:33:48,246 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 21:33:48,247 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-24 21:33:48,247 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:33:48,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:33:48,247 INFO L82 PathProgramCache]: Analyzing trace with hash 1161869885, now seen corresponding path program 2 times [2020-09-24 21:33:48,248 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:33:48,250 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [156688896] [2020-09-24 21:33:48,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:33:48,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:33:48,270 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:33:48,297 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:33:48,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:33:48,354 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:33:48,418 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:33:48,574 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:33:48,655 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:33:48,705 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:33:48,722 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:33:48,855 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:33:49,354 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:33:49,647 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:33:51,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:33:53,293 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:33:53,293 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 112 [2020-09-24 21:33:53,293 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 13 [2020-09-24 21:33:53,293 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5030 [2020-09-24 21:33:53,296 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:33:53,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 21:33:53,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 21:33:53,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-09-24 21:33:53,297 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-24 21:33:53,322 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:33:53,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:33:53,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:33:53,324 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:33:53,325 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:33:53,325 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:33:53,325 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 21:33:53,325 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:33:53,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:33:53,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:33:53,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:33:53,326 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:33:53,327 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-24 21:33:53,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:33:53,354 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:33:53,383 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:33:53,412 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:33:53,464 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:33:53,495 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:33:53,656 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:33:53,685 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:33:54,202 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:33:56,857 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:33:56,894 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:33:56,951 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:33:57,008 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:33:57,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:33:57,099 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:33:58,346 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:33:58,347 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-09-24 21:33:58,347 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 14 [2020-09-24 21:33:58,347 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-09-24 21:33:58,348 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:33:58,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 21:33:58,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-24 21:33:58,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-09-24 21:33:58,348 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:33:58,376 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 21:33:58,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:33:58,388 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:33:58,403 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:33:58,440 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:33:58,769 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:33:58,770 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-24 21:33:58,770 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 21:33:58,770 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 385 [2020-09-24 21:33:58,770 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:33:58,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 21:33:58,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:33:58,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-09-24 21:33:58,771 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:33:58,838 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 21:33:58,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:33:58,843 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:33:58,852 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:33:58,852 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 21:33:58,852 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:33:58,852 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 21:33:58,853 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:33:58,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:33:58,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:33:58,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 21:33:58,854 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:33:58,856 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 21:33:58,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:33:58,860 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:33:58,866 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:33:58,866 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:33:58,866 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:33:58,866 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 21:33:58,867 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:33:58,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 21:33:58,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:33:58,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 21:33:58,867 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:33:58,891 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-24 21:33:58,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:33:58,901 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:33:58,913 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:33:58,933 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:33:59,240 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:33:59,252 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:33:59,270 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:33:59,422 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:33:59,446 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:33:59,469 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:34:00,661 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:34:00,662 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-09-24 21:34:00,662 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-09-24 21:34:00,662 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1764 [2020-09-24 21:34:00,662 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:34:00,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 21:34:00,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 21:34:00,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-09-24 21:34:00,663 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:34:00,738 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 21:34:00,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:34:00,742 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:34:00,753 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:34:00,753 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 21:34:00,753 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:34:00,753 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-24 21:34:00,754 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:34:00,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:34:00,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:34:00,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 21:34:00,755 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:34:00,759 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 21:34:00,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:34:00,769 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:34:00,788 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:34:00,788 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-24 21:34:00,789 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:34:00,789 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-09-24 21:34:00,789 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:34:00,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:34:00,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:34:00,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-24 21:34:00,790 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:34:00,796 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 21:34:00,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:34:00,799 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:34:00,802 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:34:00,803 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 21:34:00,803 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:34:00,803 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 21:34:00,803 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:34:00,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:34:00,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:34:00,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:34:00,804 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:34:00,807 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 21:34:00,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:34:00,809 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:34:00,812 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:34:00,812 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:34:00,812 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:34:00,813 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:34:00,813 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:34:00,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:34:00,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:34:00,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:34:00,814 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:34:00,846 INFO L134 CoverageAnalysis]: Checked inductivity of 211 backedges. 56 proven. 70 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2020-09-24 21:34:00,846 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [156688896] [2020-09-24 21:34:00,848 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 21:34:00,848 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-09-24 21:34:00,848 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1771980326] [2020-09-24 21:34:00,849 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-09-24 21:34:00,849 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 21:34:00,850 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-09-24 21:34:00,850 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2020-09-24 21:34:00,850 INFO L87 Difference]: Start difference. First operand 82 states and 132 transitions. Second operand 12 states. [2020-09-24 21:34:01,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 21:34:01,057 INFO L93 Difference]: Finished difference Result 157 states and 269 transitions. [2020-09-24 21:34:01,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-24 21:34:01,059 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 87 [2020-09-24 21:34:01,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 21:34:01,065 INFO L225 Difference]: With dead ends: 157 [2020-09-24 21:34:01,066 INFO L226 Difference]: Without dead ends: 79 [2020-09-24 21:34:01,071 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=68, Invalid=172, Unknown=0, NotChecked=0, Total=240 [2020-09-24 21:34:01,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2020-09-24 21:34:01,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 73. [2020-09-24 21:34:01,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73 states. [2020-09-24 21:34:01,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 95 transitions. [2020-09-24 21:34:01,095 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 95 transitions. Word has length 87 [2020-09-24 21:34:01,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 21:34:01,097 INFO L479 AbstractCegarLoop]: Abstraction has 73 states and 95 transitions. [2020-09-24 21:34:01,097 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-09-24 21:34:01,097 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 95 transitions. [2020-09-24 21:34:01,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2020-09-24 21:34:01,100 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:34:01,100 INFO L422 BasicCegarLoop]: trace histogram [13, 13, 11, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 21:34:01,101 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-24 21:34:01,101 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:34:01,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:34:01,101 INFO L82 PathProgramCache]: Analyzing trace with hash -527666429, now seen corresponding path program 3 times [2020-09-24 21:34:01,102 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:34:01,102 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [569561613] [2020-09-24 21:34:01,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:34:01,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:34:01,132 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:34:01,168 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:34:01,215 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:34:01,242 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:34:01,320 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:34:01,411 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:34:01,462 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:34:01,858 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:34:03,463 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:34:03,504 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:34:03,534 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:34:06,127 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:34:06,127 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 156 [2020-09-24 21:34:06,127 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 11 [2020-09-24 21:34:06,128 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-09-24 21:34:06,128 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:34:06,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 21:34:06,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 21:34:06,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-09-24 21:34:06,129 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:34:06,155 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:34:06,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:34:06,157 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:34:06,158 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:34:06,158 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:34:06,158 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:34:06,159 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 21:34:06,159 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:34:06,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:34:06,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:34:06,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:34:06,160 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:34:06,161 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-24 21:34:06,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:34:06,177 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:34:06,202 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:34:06,242 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:34:06,311 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:34:06,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:34:06,720 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:34:06,777 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:34:07,451 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:34:07,607 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:34:07,648 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:34:11,171 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:34:11,172 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 142 [2020-09-24 21:34:11,172 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-09-24 21:34:11,172 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-09-24 21:34:11,172 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:34:11,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-24 21:34:11,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-24 21:34:11,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-09-24 21:34:11,173 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:34:11,199 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 21:34:11,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:34:11,209 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:34:11,222 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:34:11,250 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:34:11,264 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:34:11,342 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:34:11,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:34:13,498 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:34:13,499 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-09-24 21:34:13,499 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-24 21:34:13,499 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2293 [2020-09-24 21:34:13,499 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:34:13,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 21:34:13,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:34:13,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-09-24 21:34:13,500 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:34:13,525 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 21:34:13,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:34:13,529 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:34:13,544 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:34:13,545 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 21:34:13,545 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:34:13,545 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-24 21:34:13,545 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:34:13,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 21:34:13,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:34:13,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 21:34:13,546 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:34:13,557 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 21:34:13,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:34:13,564 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:34:13,580 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:34:13,581 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-24 21:34:13,581 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:34:13,581 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-24 21:34:13,582 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:34:13,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:34:13,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:34:13,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-24 21:34:13,582 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:34:13,587 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 21:34:13,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:34:13,589 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:34:13,592 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:34:13,592 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 21:34:13,592 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:34:13,593 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 21:34:13,593 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:34:13,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:34:13,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:34:13,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:34:13,594 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:34:13,596 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 21:34:13,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:34:13,598 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:34:13,601 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:34:13,601 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:34:13,601 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:34:13,601 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:34:13,602 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:34:13,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:34:13,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:34:13,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:34:13,603 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:34:13,606 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-09-24 21:34:13,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:34:13,620 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:34:13,641 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:34:13,685 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:34:13,791 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:34:13,843 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:34:13,908 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:34:14,287 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:34:14,316 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:34:14,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:34:16,119 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:34:16,119 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-09-24 21:34:16,119 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-09-24 21:34:16,119 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2504 [2020-09-24 21:34:16,120 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:34:16,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 21:34:16,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 21:34:16,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-09-24 21:34:16,121 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:34:16,160 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 21:34:16,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:34:16,171 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:34:16,182 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:34:16,196 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:34:16,508 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:34:16,553 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:34:16,600 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:34:16,950 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:34:16,951 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-09-24 21:34:16,951 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-24 21:34:16,951 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 783 [2020-09-24 21:34:16,952 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:34:16,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 21:34:16,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:34:16,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-09-24 21:34:16,952 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:34:16,979 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 21:34:16,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:34:16,982 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:34:16,990 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:34:16,990 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 21:34:16,990 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:34:16,990 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 21:34:16,991 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:34:16,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:34:16,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:34:16,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 21:34:16,991 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:34:16,995 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 21:34:16,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:34:17,003 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:34:17,015 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:34:17,024 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:34:17,220 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:34:17,220 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-24 21:34:17,220 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 21:34:17,220 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 220 [2020-09-24 21:34:17,221 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:34:17,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 21:34:17,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:34:17,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-09-24 21:34:17,221 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:34:17,239 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 21:34:17,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:34:17,245 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:34:17,252 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:34:17,252 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 21:34:17,252 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:34:17,252 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 21:34:17,253 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:34:17,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:34:17,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:34:17,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 21:34:17,253 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:34:17,255 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 21:34:17,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:34:17,258 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:34:17,263 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:34:17,264 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:34:17,264 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:34:17,264 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 21:34:17,264 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:34:17,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:34:17,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:34:17,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 21:34:17,265 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:34:17,269 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-09-24 21:34:17,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:34:17,273 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:34:17,280 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:34:17,280 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 21:34:17,280 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:34:17,280 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 21:34:17,281 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:34:17,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:34:17,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:34:17,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 21:34:17,282 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:34:17,299 INFO L134 CoverageAnalysis]: Checked inductivity of 483 backedges. 166 proven. 139 refuted. 0 times theorem prover too weak. 178 trivial. 0 not checked. [2020-09-24 21:34:17,300 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [569561613] [2020-09-24 21:34:17,300 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 21:34:17,300 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-09-24 21:34:17,301 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2046954252] [2020-09-24 21:34:17,301 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-24 21:34:17,302 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 21:34:17,302 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-24 21:34:17,302 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2020-09-24 21:34:17,302 INFO L87 Difference]: Start difference. First operand 73 states and 95 transitions. Second operand 11 states. [2020-09-24 21:34:17,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 21:34:17,717 INFO L93 Difference]: Finished difference Result 132 states and 203 transitions. [2020-09-24 21:34:17,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-09-24 21:34:17,718 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 123 [2020-09-24 21:34:17,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 21:34:17,719 INFO L225 Difference]: With dead ends: 132 [2020-09-24 21:34:17,720 INFO L226 Difference]: Without dead ends: 66 [2020-09-24 21:34:17,722 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=104, Invalid=276, Unknown=0, NotChecked=0, Total=380 [2020-09-24 21:34:17,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2020-09-24 21:34:17,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 60. [2020-09-24 21:34:17,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60 states. [2020-09-24 21:34:17,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 72 transitions. [2020-09-24 21:34:17,746 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 72 transitions. Word has length 123 [2020-09-24 21:34:17,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 21:34:17,747 INFO L479 AbstractCegarLoop]: Abstraction has 60 states and 72 transitions. [2020-09-24 21:34:17,747 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-24 21:34:17,747 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 72 transitions. [2020-09-24 21:34:17,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2020-09-24 21:34:17,752 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:34:17,752 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 9, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 21:34:17,752 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-24 21:34:17,753 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:34:17,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:34:17,753 INFO L82 PathProgramCache]: Analyzing trace with hash 1885389560, now seen corresponding path program 4 times [2020-09-24 21:34:17,753 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:34:17,754 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1163618627] [2020-09-24 21:34:17,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:34:17,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:34:17,779 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:34:17,804 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:34:17,830 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:34:17,861 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:34:17,901 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:34:19,203 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:34:19,297 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:34:21,794 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:34:22,620 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:34:22,771 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:34:22,771 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 134 [2020-09-24 21:34:22,771 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-09-24 21:34:22,771 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-24 21:34:22,772 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:34:22,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-24 21:34:22,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 21:34:22,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-09-24 21:34:22,772 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:34:22,788 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:34:22,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:34:22,790 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:34:22,791 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:34:22,791 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:34:22,791 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:34:22,791 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 21:34:22,791 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:34:22,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:34:22,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:34:22,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:34:22,792 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:34:22,792 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-24 21:34:22,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:34:22,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:34:22,851 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:34:22,890 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:34:22,962 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:34:22,993 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:34:23,069 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:34:23,089 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:34:24,432 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:34:26,185 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:34:26,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:34:26,239 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:34:26,271 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:34:26,400 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:34:26,431 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:34:26,471 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:34:26,631 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:34:27,817 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:34:27,818 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 120 [2020-09-24 21:34:27,818 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 16 [2020-09-24 21:34:27,818 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5011 [2020-09-24 21:34:27,819 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:34:27,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-24 21:34:27,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 21:34:27,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 116 [2020-09-24 21:34:27,819 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:34:27,846 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 21:34:27,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:34:27,859 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:34:27,876 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:34:27,898 FATAL L256 erpolLogProxyWrapper]: Now shrinking...