/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=1000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/recursive-simple/fibo_20-2.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-eb0fd7c [2020-09-21 12:22:13,507 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-21 12:22:13,511 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-21 12:22:13,537 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-21 12:22:13,538 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-21 12:22:13,539 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-21 12:22:13,541 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-21 12:22:13,543 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-21 12:22:13,544 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-21 12:22:13,545 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-21 12:22:13,547 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-21 12:22:13,548 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-21 12:22:13,548 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-21 12:22:13,549 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-21 12:22:13,550 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-21 12:22:13,552 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-21 12:22:13,553 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-21 12:22:13,554 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-21 12:22:13,556 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-21 12:22:13,561 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-21 12:22:13,562 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-21 12:22:13,569 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-21 12:22:13,570 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-21 12:22:13,571 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-21 12:22:13,573 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-21 12:22:13,573 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-21 12:22:13,574 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-21 12:22:13,575 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-21 12:22:13,575 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-21 12:22:13,576 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-21 12:22:13,576 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-21 12:22:13,577 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-21 12:22:13,578 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-21 12:22:13,579 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-21 12:22:13,580 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-21 12:22:13,580 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-21 12:22:13,581 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-21 12:22:13,581 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-21 12:22:13,582 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-21 12:22:13,583 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-21 12:22:13,584 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-21 12:22:13,584 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-21 12:22:13,612 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-21 12:22:13,613 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-21 12:22:13,614 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-21 12:22:13,614 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-21 12:22:13,614 INFO L138 SettingsManager]: * Use SBE=true [2020-09-21 12:22:13,615 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-21 12:22:13,615 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-21 12:22:13,615 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-21 12:22:13,615 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-21 12:22:13,615 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-21 12:22:13,616 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-21 12:22:13,616 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-21 12:22:13,616 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-21 12:22:13,616 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-21 12:22:13,616 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-21 12:22:13,617 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-21 12:22:13,617 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-21 12:22:13,617 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-21 12:22:13,617 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-21 12:22:13,618 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-21 12:22:13,618 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-21 12:22:13,618 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-21 12:22:13,618 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-21 12:22:13,618 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-21 12:22:13,619 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-21 12:22:13,619 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-21 12:22:13,619 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-21 12:22:13,619 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-21 12:22:13,620 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-21 12:22:13,620 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=1000;interpolation-heuristic=SMALLEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=1000;interpolation-heuristic=SMALLEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=1000;interpolation-heuristic=SMALLEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=1000;interpolation-heuristic=SMALLEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=1000;interpolation-heuristic=SMALLEST;log-additional-information=true; [2020-09-21 12:22:14,076 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-21 12:22:14,093 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-21 12:22:14,097 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-21 12:22:14,099 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-21 12:22:14,100 INFO L275 PluginConnector]: CDTParser initialized [2020-09-21 12:22:14,101 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive-simple/fibo_20-2.c [2020-09-21 12:22:14,178 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3aadaabbf/e0a141ae79724e83a661949d053d5eb3/FLAG0794f0741 [2020-09-21 12:22:14,718 INFO L306 CDTParser]: Found 1 translation units. [2020-09-21 12:22:14,719 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/recursive-simple/fibo_20-2.c [2020-09-21 12:22:14,728 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3aadaabbf/e0a141ae79724e83a661949d053d5eb3/FLAG0794f0741 [2020-09-21 12:22:15,068 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3aadaabbf/e0a141ae79724e83a661949d053d5eb3 [2020-09-21 12:22:15,083 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-21 12:22:15,089 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-21 12:22:15,090 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-21 12:22:15,090 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-21 12:22:15,094 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-21 12:22:15,096 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 12:22:15" (1/1) ... [2020-09-21 12:22:15,100 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@44fd9ac2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:22:15, skipping insertion in model container [2020-09-21 12:22:15,100 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 12:22:15" (1/1) ... [2020-09-21 12:22:15,109 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-21 12:22:15,133 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-21 12:22:15,364 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-21 12:22:15,370 INFO L203 MainTranslator]: Completed pre-run [2020-09-21 12:22:15,389 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-21 12:22:15,403 INFO L208 MainTranslator]: Completed translation [2020-09-21 12:22:15,404 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:22:15 WrapperNode [2020-09-21 12:22:15,404 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-21 12:22:15,405 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-21 12:22:15,405 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-21 12:22:15,405 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-21 12:22:15,420 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:22:15" (1/1) ... [2020-09-21 12:22:15,420 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:22:15" (1/1) ... [2020-09-21 12:22:15,510 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:22:15" (1/1) ... [2020-09-21 12:22:15,511 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:22:15" (1/1) ... [2020-09-21 12:22:15,516 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:22:15" (1/1) ... [2020-09-21 12:22:15,521 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:22:15" (1/1) ... [2020-09-21 12:22:15,521 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:22:15" (1/1) ... [2020-09-21 12:22:15,523 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-21 12:22:15,523 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-21 12:22:15,523 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-21 12:22:15,524 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-21 12:22:15,525 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:22:15" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-21 12:22:15,599 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-21 12:22:15,599 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-21 12:22:15,599 INFO L138 BoogieDeclarations]: Found implementation of procedure fibo [2020-09-21 12:22:15,599 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-21 12:22:15,600 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-21 12:22:15,600 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-21 12:22:15,600 INFO L130 BoogieDeclarations]: Found specification of procedure fibo [2020-09-21 12:22:15,600 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-21 12:22:15,601 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-21 12:22:15,602 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-21 12:22:15,800 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-21 12:22:15,801 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-21 12:22:15,805 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 12:22:15 BoogieIcfgContainer [2020-09-21 12:22:15,805 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-21 12:22:15,807 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-21 12:22:15,807 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-21 12:22:15,811 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-21 12:22:15,811 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.09 12:22:15" (1/3) ... [2020-09-21 12:22:15,812 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17b96c60 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 12:22:15, skipping insertion in model container [2020-09-21 12:22:15,813 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:22:15" (2/3) ... [2020-09-21 12:22:15,813 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17b96c60 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 12:22:15, skipping insertion in model container [2020-09-21 12:22:15,814 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 12:22:15" (3/3) ... [2020-09-21 12:22:15,816 INFO L109 eAbstractionObserver]: Analyzing ICFG fibo_20-2.c [2020-09-21 12:22:15,828 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-21 12:22:15,839 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-21 12:22:15,871 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-21 12:22:15,937 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-21 12:22:15,937 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-21 12:22:15,937 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-21 12:22:15,938 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-21 12:22:15,938 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-21 12:22:15,938 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-21 12:22:15,938 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-21 12:22:15,938 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-21 12:22:15,965 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states. [2020-09-21 12:22:15,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-09-21 12:22:15,975 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:22:15,976 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 12:22:15,977 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:22:15,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:22:15,986 INFO L82 PathProgramCache]: Analyzing trace with hash 537028541, now seen corresponding path program 1 times [2020-09-21 12:22:15,997 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:22:15,998 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [816108103] [2020-09-21 12:22:15,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:22:16,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:16,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:16,169 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:16,169 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-21 12:22:16,169 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:22:16,169 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-09-21 12:22:16,171 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:16,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 12:22:16,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-21 12:22:16,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 12:22:16,172 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-21 12:22:16,233 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:22:16,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:16,237 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:16,239 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:16,239 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:22:16,239 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:22:16,240 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:22:16,240 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:16,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:22:16,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:16,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:22:16,241 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:22:16,245 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-21 12:22:16,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:16,255 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:16,273 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:16,273 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 12:22:16,274 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:22:16,274 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-09-21 12:22:16,274 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:16,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 12:22:16,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-21 12:22:16,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 12:22:16,275 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:16,304 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 12:22:16,305 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [816108103] [2020-09-21 12:22:16,307 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 12:22:16,307 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-21 12:22:16,308 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1135005331] [2020-09-21 12:22:16,315 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-21 12:22:16,315 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:22:16,332 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-21 12:22:16,333 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-21 12:22:16,336 INFO L87 Difference]: Start difference. First operand 24 states. Second operand 5 states. [2020-09-21 12:22:16,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:22:16,450 INFO L93 Difference]: Finished difference Result 35 states and 41 transitions. [2020-09-21 12:22:16,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-21 12:22:16,453 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-09-21 12:22:16,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:22:16,464 INFO L225 Difference]: With dead ends: 35 [2020-09-21 12:22:16,464 INFO L226 Difference]: Without dead ends: 21 [2020-09-21 12:22:16,469 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 [2020-09-21 12:22:16,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2020-09-21 12:22:16,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2020-09-21 12:22:16,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2020-09-21 12:22:16,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 25 transitions. [2020-09-21 12:22:16,518 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 25 transitions. Word has length 13 [2020-09-21 12:22:16,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:22:16,518 INFO L479 AbstractCegarLoop]: Abstraction has 21 states and 25 transitions. [2020-09-21 12:22:16,519 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-21 12:22:16,519 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 25 transitions. [2020-09-21 12:22:16,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-09-21 12:22:16,521 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:22:16,521 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 12:22:16,522 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-21 12:22:16,522 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:22:16,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:22:16,522 INFO L82 PathProgramCache]: Analyzing trace with hash 179123823, now seen corresponding path program 1 times [2020-09-21 12:22:16,523 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:22:16,523 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [913125326] [2020-09-21 12:22:16,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:22:16,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:16,543 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:16,602 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:16,603 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-21 12:22:16,603 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:22:16,603 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 67 [2020-09-21 12:22:16,603 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:16,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 12:22:16,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-21 12:22:16,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-21 12:22:16,605 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:22:16,655 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:22:16,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:16,659 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:16,661 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:16,661 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:22:16,662 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:22:16,663 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 12:22:16,663 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:16,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:22:16,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:16,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:22:16,670 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-09-21 12:22:16,675 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-21 12:22:16,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:16,693 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:16,738 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:16,739 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 12:22:16,739 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:22:16,739 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-09-21 12:22:16,740 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:16,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 12:22:16,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-21 12:22:16,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-21 12:22:16,741 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:22:16,783 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 12:22:16,784 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [913125326] [2020-09-21 12:22:16,784 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 12:22:16,784 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-21 12:22:16,784 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1483758890] [2020-09-21 12:22:16,787 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-21 12:22:16,787 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:22:16,787 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-21 12:22:16,788 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-21 12:22:16,788 INFO L87 Difference]: Start difference. First operand 21 states and 25 transitions. Second operand 5 states. [2020-09-21 12:22:16,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:22:16,859 INFO L93 Difference]: Finished difference Result 27 states and 32 transitions. [2020-09-21 12:22:16,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-21 12:22:16,860 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2020-09-21 12:22:16,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:22:16,861 INFO L225 Difference]: With dead ends: 27 [2020-09-21 12:22:16,861 INFO L226 Difference]: Without dead ends: 23 [2020-09-21 12:22:16,863 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 [2020-09-21 12:22:16,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2020-09-21 12:22:16,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 21. [2020-09-21 12:22:16,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2020-09-21 12:22:16,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 25 transitions. [2020-09-21 12:22:16,870 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 25 transitions. Word has length 14 [2020-09-21 12:22:16,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:22:16,871 INFO L479 AbstractCegarLoop]: Abstraction has 21 states and 25 transitions. [2020-09-21 12:22:16,871 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-21 12:22:16,871 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 25 transitions. [2020-09-21 12:22:16,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-09-21 12:22:16,873 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:22:16,873 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 12:22:16,873 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-21 12:22:16,873 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:22:16,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:22:16,874 INFO L82 PathProgramCache]: Analyzing trace with hash 806022394, now seen corresponding path program 1 times [2020-09-21 12:22:16,874 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:22:16,875 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [969996895] [2020-09-21 12:22:16,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:22:16,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:16,899 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:16,956 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:17,014 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:17,552 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:17,552 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 39 [2020-09-21 12:22:17,553 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-21 12:22:17,553 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 663 [2020-09-21 12:22:17,555 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:17,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 12:22:17,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-21 12:22:17,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-21 12:22:17,555 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:22:17,568 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:22:17,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:17,570 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:17,572 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:17,572 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:22:17,573 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:22:17,573 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:22:17,574 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:17,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:22:17,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:17,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:22:17,575 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:22:17,581 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-21 12:22:17,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:17,599 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:17,655 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:17,655 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-21 12:22:17,656 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:22:17,656 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-09-21 12:22:17,656 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:17,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 12:22:17,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-09-21 12:22:17,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-21 12:22:17,657 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:22:17,687 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 12:22:17,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:17,695 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:17,707 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:17,709 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 12:22:17,710 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:22:17,710 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-21 12:22:17,710 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:17,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 12:22:17,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-21 12:22:17,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 12:22:17,711 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:22:17,734 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 12:22:17,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:17,739 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:17,743 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:17,743 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 12:22:17,743 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:22:17,743 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-21 12:22:17,744 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:17,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:22:17,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-21 12:22:17,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:22:17,745 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:22:17,749 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 5 proven. 3 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-09-21 12:22:17,750 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [969996895] [2020-09-21 12:22:17,750 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 12:22:17,750 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-09-21 12:22:17,750 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1931057021] [2020-09-21 12:22:17,751 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-21 12:22:17,751 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:22:17,752 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-21 12:22:17,752 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-09-21 12:22:17,752 INFO L87 Difference]: Start difference. First operand 21 states and 25 transitions. Second operand 6 states. [2020-09-21 12:22:17,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:22:17,840 INFO L93 Difference]: Finished difference Result 38 states and 49 transitions. [2020-09-21 12:22:17,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-21 12:22:17,841 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 26 [2020-09-21 12:22:17,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:22:17,842 INFO L225 Difference]: With dead ends: 38 [2020-09-21 12:22:17,842 INFO L226 Difference]: Without dead ends: 23 [2020-09-21 12:22:17,843 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2020-09-21 12:22:17,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2020-09-21 12:22:17,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2020-09-21 12:22:17,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2020-09-21 12:22:17,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 27 transitions. [2020-09-21 12:22:17,852 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 27 transitions. Word has length 26 [2020-09-21 12:22:17,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:22:17,852 INFO L479 AbstractCegarLoop]: Abstraction has 23 states and 27 transitions. [2020-09-21 12:22:17,852 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-21 12:22:17,853 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 27 transitions. [2020-09-21 12:22:17,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-09-21 12:22:17,854 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:22:17,854 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 12:22:17,854 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-21 12:22:17,855 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:22:17,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:22:17,855 INFO L82 PathProgramCache]: Analyzing trace with hash -983862936, now seen corresponding path program 1 times [2020-09-21 12:22:17,855 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:22:17,856 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [600402107] [2020-09-21 12:22:17,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:22:17,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:17,869 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:17,885 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:18,137 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:18,138 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-09-21 12:22:18,138 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-21 12:22:18,139 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 273 [2020-09-21 12:22:18,139 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:18,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-21 12:22:18,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-21 12:22:18,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-21 12:22:18,140 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:22:18,158 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:22:18,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:18,162 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:18,164 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:18,164 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:22:18,165 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:22:18,165 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:22:18,165 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:18,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:22:18,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:18,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:22:18,166 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:22:18,168 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-21 12:22:18,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:18,182 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:18,216 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:18,466 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:18,467 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-09-21 12:22:18,467 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-21 12:22:18,467 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 291 [2020-09-21 12:22:18,467 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:18,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-21 12:22:18,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-21 12:22:18,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-21 12:22:18,468 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:18,512 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 12:22:18,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:18,517 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:18,527 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:18,527 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 12:22:18,527 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:22:18,528 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-21 12:22:18,528 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:18,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:22:18,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:18,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-21 12:22:18,529 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:22:18,534 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-21 12:22:18,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:18,545 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:18,557 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:18,558 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 12:22:18,558 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:22:18,558 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-21 12:22:18,558 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:18,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 12:22:18,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:18,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-21 12:22:18,560 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:22:18,589 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 6 proven. 4 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-09-21 12:22:18,589 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [600402107] [2020-09-21 12:22:18,589 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 12:22:18,590 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-21 12:22:18,590 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2114048576] [2020-09-21 12:22:18,591 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-21 12:22:18,591 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:22:18,591 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-21 12:22:18,593 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-09-21 12:22:18,594 INFO L87 Difference]: Start difference. First operand 23 states and 27 transitions. Second operand 7 states. [2020-09-21 12:22:18,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:22:18,673 INFO L93 Difference]: Finished difference Result 30 states and 35 transitions. [2020-09-21 12:22:18,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-21 12:22:18,674 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 27 [2020-09-21 12:22:18,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:22:18,675 INFO L225 Difference]: With dead ends: 30 [2020-09-21 12:22:18,675 INFO L226 Difference]: Without dead ends: 26 [2020-09-21 12:22:18,676 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2020-09-21 12:22:18,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2020-09-21 12:22:18,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 24. [2020-09-21 12:22:18,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2020-09-21 12:22:18,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 28 transitions. [2020-09-21 12:22:18,684 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 28 transitions. Word has length 27 [2020-09-21 12:22:18,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:22:18,685 INFO L479 AbstractCegarLoop]: Abstraction has 24 states and 28 transitions. [2020-09-21 12:22:18,685 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-21 12:22:18,685 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 28 transitions. [2020-09-21 12:22:18,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-09-21 12:22:18,687 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:22:18,687 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 12:22:18,687 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-21 12:22:18,687 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:22:18,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:22:18,688 INFO L82 PathProgramCache]: Analyzing trace with hash -1780546516, now seen corresponding path program 1 times [2020-09-21 12:22:18,688 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:22:18,688 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [487300926] [2020-09-21 12:22:18,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:22:18,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:18,702 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:18,719 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:18,746 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:18,945 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:19,194 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:19,195 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-21 12:22:19,195 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-21 12:22:19,195 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 497 [2020-09-21 12:22:19,195 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:19,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-21 12:22:19,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-09-21 12:22:19,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-21 12:22:19,196 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:19,202 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:22:19,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:19,204 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:19,205 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:19,205 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:22:19,206 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:22:19,206 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 12:22:19,206 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:19,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:22:19,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:19,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:22:19,207 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:19,208 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-21 12:22:19,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:19,218 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:19,249 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:19,281 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:19,281 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-21 12:22:19,281 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-21 12:22:19,282 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 67 [2020-09-21 12:22:19,282 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:19,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-21 12:22:19,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-21 12:22:19,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-21 12:22:19,283 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:19,307 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 12:22:19,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:19,312 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:19,323 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:19,323 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 12:22:19,323 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:22:19,324 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-21 12:22:19,324 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:19,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 12:22:19,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:19,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-21 12:22:19,325 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:19,342 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-21 12:22:19,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:19,347 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:19,360 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:19,360 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 12:22:19,361 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:22:19,361 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-21 12:22:19,361 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:19,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 12:22:19,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-21 12:22:19,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-21 12:22:19,363 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:22:19,371 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-09-21 12:22:19,372 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [487300926] [2020-09-21 12:22:19,372 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 12:22:19,372 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-21 12:22:19,372 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [783059726] [2020-09-21 12:22:19,373 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-21 12:22:19,373 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:22:19,373 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-21 12:22:19,374 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-21 12:22:19,374 INFO L87 Difference]: Start difference. First operand 24 states and 28 transitions. Second operand 5 states. [2020-09-21 12:22:19,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:22:19,469 INFO L93 Difference]: Finished difference Result 52 states and 76 transitions. [2020-09-21 12:22:19,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-21 12:22:19,470 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 28 [2020-09-21 12:22:19,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:22:19,471 INFO L225 Difference]: With dead ends: 52 [2020-09-21 12:22:19,472 INFO L226 Difference]: Without dead ends: 34 [2020-09-21 12:22:19,473 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-09-21 12:22:19,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2020-09-21 12:22:19,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 28. [2020-09-21 12:22:19,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2020-09-21 12:22:19,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 36 transitions. [2020-09-21 12:22:19,484 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 36 transitions. Word has length 28 [2020-09-21 12:22:19,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:22:19,484 INFO L479 AbstractCegarLoop]: Abstraction has 28 states and 36 transitions. [2020-09-21 12:22:19,484 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-21 12:22:19,484 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 36 transitions. [2020-09-21 12:22:19,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-09-21 12:22:19,486 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:22:19,486 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 12:22:19,487 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-21 12:22:19,487 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:22:19,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:22:19,487 INFO L82 PathProgramCache]: Analyzing trace with hash 499839773, now seen corresponding path program 2 times [2020-09-21 12:22:19,487 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:22:19,488 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1135254897] [2020-09-21 12:22:19,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:22:19,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:19,504 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:19,523 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:19,543 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:19,590 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:19,973 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:20,222 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:20,499 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:20,499 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-09-21 12:22:20,499 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-21 12:22:20,499 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1000 [2020-09-21 12:22:20,500 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:20,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-21 12:22:20,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-09-21 12:22:20,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-21 12:22:20,500 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:20,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:22:20,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:20,522 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:20,523 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:20,523 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:22:20,524 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:22:20,524 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 12:22:20,524 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:20,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:22:20,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:20,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:22:20,525 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:20,526 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-21 12:22:20,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:20,542 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:20,559 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:20,618 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:20,898 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:20,898 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-09-21 12:22:20,898 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-21 12:22:20,899 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 360 [2020-09-21 12:22:20,899 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:20,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-21 12:22:20,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-21 12:22:20,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-21 12:22:20,900 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:20,915 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 12:22:20,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:20,922 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:20,936 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:20,936 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 12:22:20,936 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:22:20,937 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-21 12:22:20,937 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:20,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 12:22:20,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:20,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-21 12:22:20,938 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:22:20,956 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-21 12:22:20,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:20,966 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:20,989 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:21,000 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:21,049 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:21,049 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-09-21 12:22:21,050 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-21 12:22:21,050 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 86 [2020-09-21 12:22:21,050 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:21,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 12:22:21,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-21 12:22:21,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-21 12:22:21,051 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:21,075 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 12:22:21,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:21,079 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:21,082 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:21,083 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 12:22:21,083 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:22:21,083 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 12:22:21,083 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:21,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:22:21,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:21,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-21 12:22:21,084 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:21,086 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-21 12:22:21,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:21,090 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:21,097 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:21,097 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 12:22:21,097 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:22:21,097 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-21 12:22:21,098 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:21,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:22:21,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:21,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 12:22:21,099 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:21,106 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 19 proven. 15 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2020-09-21 12:22:21,106 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1135254897] [2020-09-21 12:22:21,107 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 12:22:21,107 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-21 12:22:21,108 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [18442668] [2020-09-21 12:22:21,108 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-21 12:22:21,108 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:22:21,109 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-21 12:22:21,109 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-09-21 12:22:21,109 INFO L87 Difference]: Start difference. First operand 28 states and 36 transitions. Second operand 7 states. [2020-09-21 12:22:21,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:22:21,250 INFO L93 Difference]: Finished difference Result 56 states and 79 transitions. [2020-09-21 12:22:21,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-21 12:22:21,252 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 41 [2020-09-21 12:22:21,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:22:21,253 INFO L225 Difference]: With dead ends: 56 [2020-09-21 12:22:21,253 INFO L226 Difference]: Without dead ends: 33 [2020-09-21 12:22:21,254 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-09-21 12:22:21,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2020-09-21 12:22:21,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 30. [2020-09-21 12:22:21,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2020-09-21 12:22:21,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 36 transitions. [2020-09-21 12:22:21,262 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 36 transitions. Word has length 41 [2020-09-21 12:22:21,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:22:21,262 INFO L479 AbstractCegarLoop]: Abstraction has 30 states and 36 transitions. [2020-09-21 12:22:21,262 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-21 12:22:21,262 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 36 transitions. [2020-09-21 12:22:21,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-09-21 12:22:21,264 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:22:21,264 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 12:22:21,264 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-21 12:22:21,264 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:22:21,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:22:21,265 INFO L82 PathProgramCache]: Analyzing trace with hash -1111873851, now seen corresponding path program 3 times [2020-09-21 12:22:21,265 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:22:21,265 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1752988596] [2020-09-21 12:22:21,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:22:21,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:21,278 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:21,298 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:21,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:22,273 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:22,273 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-09-21 12:22:22,273 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-21 12:22:22,274 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 999 [2020-09-21 12:22:22,274 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:22,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-21 12:22:22,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-21 12:22:22,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-09-21 12:22:22,275 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:22,289 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:22:22,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:22,291 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:22,292 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:22,292 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:22:22,292 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:22:22,292 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 12:22:22,293 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:22,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:22:22,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:22,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:22:22,293 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:22,294 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-21 12:22:22,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:22,309 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:22,337 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:22,397 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:23,304 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:23,304 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-09-21 12:22:23,305 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-21 12:22:23,305 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1002 [2020-09-21 12:22:23,305 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:23,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-21 12:22:23,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-21 12:22:23,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-21 12:22:23,306 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:23,328 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 12:22:23,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:23,336 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:23,355 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:23,355 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-09-21 12:22:23,356 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:22:23,356 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-09-21 12:22:23,356 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:23,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:22:23,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:23,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-21 12:22:23,357 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:23,361 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 12:22:23,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:23,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:23,367 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:23,367 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 12:22:23,367 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:22:23,368 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 12:22:23,368 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:23,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:22:23,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:23,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:22:23,369 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:23,371 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-21 12:22:23,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:23,372 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:23,376 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:23,376 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 12:22:23,376 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:22:23,377 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 12:22:23,377 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:23,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:22:23,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:23,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:22:23,378 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:23,379 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-09-21 12:22:23,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:23,383 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:23,399 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:23,399 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 12:22:23,400 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:22:23,400 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-21 12:22:23,400 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:23,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 12:22:23,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:23,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-21 12:22:23,401 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:23,415 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 20 proven. 8 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2020-09-21 12:22:23,416 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1752988596] [2020-09-21 12:22:23,416 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 12:22:23,416 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-09-21 12:22:23,416 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1949919827] [2020-09-21 12:22:23,417 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-21 12:22:23,417 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:22:23,417 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-21 12:22:23,418 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-09-21 12:22:23,418 INFO L87 Difference]: Start difference. First operand 30 states and 36 transitions. Second operand 6 states. [2020-09-21 12:22:23,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:22:23,492 INFO L93 Difference]: Finished difference Result 40 states and 48 transitions. [2020-09-21 12:22:23,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-21 12:22:23,493 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 41 [2020-09-21 12:22:23,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:22:23,494 INFO L225 Difference]: With dead ends: 40 [2020-09-21 12:22:23,494 INFO L226 Difference]: Without dead ends: 36 [2020-09-21 12:22:23,495 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-09-21 12:22:23,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2020-09-21 12:22:23,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 30. [2020-09-21 12:22:23,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2020-09-21 12:22:23,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 36 transitions. [2020-09-21 12:22:23,502 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 36 transitions. Word has length 41 [2020-09-21 12:22:23,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:22:23,503 INFO L479 AbstractCegarLoop]: Abstraction has 30 states and 36 transitions. [2020-09-21 12:22:23,503 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-21 12:22:23,503 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 36 transitions. [2020-09-21 12:22:23,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-09-21 12:22:23,504 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:22:23,504 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 5, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 12:22:23,505 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-21 12:22:23,505 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:22:23,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:22:23,505 INFO L82 PathProgramCache]: Analyzing trace with hash 1143247140, now seen corresponding path program 4 times [2020-09-21 12:22:23,506 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:22:23,506 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1805579402] [2020-09-21 12:22:23,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:22:23,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:23,520 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:23,542 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:23,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:23,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:23,670 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:23,698 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:23,714 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:24,031 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:24,517 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:24,517 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-09-21 12:22:24,517 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-09-21 12:22:24,518 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1003 [2020-09-21 12:22:24,518 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:24,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-21 12:22:24,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-21 12:22:24,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-09-21 12:22:24,519 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:24,535 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:22:24,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:24,537 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:24,538 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:24,538 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:22:24,539 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:22:24,539 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 12:22:24,539 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:24,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:22:24,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:24,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:22:24,541 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:22:24,542 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-21 12:22:24,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:24,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:24,586 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:24,631 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:24,673 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:24,690 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:24,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:25,553 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:25,553 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 63 [2020-09-21 12:22:25,553 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-21 12:22:25,554 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1001 [2020-09-21 12:22:25,554 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:25,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-21 12:22:25,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-21 12:22:25,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-21 12:22:25,555 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:25,578 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 12:22:25,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:25,587 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:25,601 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:25,699 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:25,849 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:25,849 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-09-21 12:22:25,850 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-21 12:22:25,850 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 266 [2020-09-21 12:22:25,850 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:25,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-21 12:22:25,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:25,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-09-21 12:22:25,851 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:25,881 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 12:22:25,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:25,885 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:25,902 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:25,902 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 12:22:25,902 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:22:25,903 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-21 12:22:25,903 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:25,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 12:22:25,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:25,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-21 12:22:25,904 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:25,922 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-21 12:22:25,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:25,925 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:25,931 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:25,931 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 12:22:25,931 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:22:25,931 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-21 12:22:25,932 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:25,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:22:25,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:25,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 12:22:25,933 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:25,935 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-09-21 12:22:25,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:25,943 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:25,963 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:25,976 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:26,051 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:26,051 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-09-21 12:22:26,051 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-21 12:22:26,052 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 111 [2020-09-21 12:22:26,052 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:26,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 12:22:26,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-21 12:22:26,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-21 12:22:26,053 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:26,125 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 12:22:26,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:26,131 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:26,141 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:26,141 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 12:22:26,141 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:22:26,142 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-21 12:22:26,142 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:26,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:22:26,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:26,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-21 12:22:26,143 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:22:26,146 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-21 12:22:26,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:26,151 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:26,158 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:26,158 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 12:22:26,159 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:22:26,159 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-21 12:22:26,159 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:26,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:22:26,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:26,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 12:22:26,160 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:26,171 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 31 proven. 39 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2020-09-21 12:22:26,172 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1805579402] [2020-09-21 12:22:26,172 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 12:22:26,172 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-09-21 12:22:26,172 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1941969682] [2020-09-21 12:22:26,174 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-21 12:22:26,174 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:22:26,174 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-21 12:22:26,174 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-09-21 12:22:26,174 INFO L87 Difference]: Start difference. First operand 30 states and 36 transitions. Second operand 9 states. [2020-09-21 12:22:26,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:22:26,409 INFO L93 Difference]: Finished difference Result 68 states and 94 transitions. [2020-09-21 12:22:26,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-21 12:22:26,410 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 54 [2020-09-21 12:22:26,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:22:26,411 INFO L225 Difference]: With dead ends: 68 [2020-09-21 12:22:26,411 INFO L226 Difference]: Without dead ends: 44 [2020-09-21 12:22:26,412 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 19 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2020-09-21 12:22:26,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2020-09-21 12:22:26,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 41. [2020-09-21 12:22:26,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2020-09-21 12:22:26,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 50 transitions. [2020-09-21 12:22:26,428 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 50 transitions. Word has length 54 [2020-09-21 12:22:26,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:22:26,428 INFO L479 AbstractCegarLoop]: Abstraction has 41 states and 50 transitions. [2020-09-21 12:22:26,428 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-21 12:22:26,428 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 50 transitions. [2020-09-21 12:22:26,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2020-09-21 12:22:26,432 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:22:26,432 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 9, 5, 5, 5, 5, 5, 5, 5, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 12:22:26,432 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-21 12:22:26,433 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:22:26,433 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:22:26,433 INFO L82 PathProgramCache]: Analyzing trace with hash -1986920854, now seen corresponding path program 5 times [2020-09-21 12:22:26,434 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:22:26,434 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1087737330] [2020-09-21 12:22:26,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:22:26,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:26,469 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:26,501 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:26,571 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:26,633 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:26,758 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:26,849 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:26,907 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:26,943 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:27,400 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:27,424 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:27,446 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:27,463 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:27,463 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-09-21 12:22:27,464 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 11 [2020-09-21 12:22:27,464 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1003 [2020-09-21 12:22:27,464 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:27,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-21 12:22:27,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-09-21 12:22:27,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-09-21 12:22:27,465 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:27,482 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:22:27,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:27,484 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:27,485 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:27,485 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:22:27,485 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:22:27,485 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 12:22:27,486 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:27,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:22:27,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:27,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:22:27,487 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:22:27,488 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-21 12:22:27,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:27,510 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:27,575 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:27,633 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:27,676 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:27,876 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:27,952 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:28,504 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:28,504 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 99 [2020-09-21 12:22:28,505 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-21 12:22:28,505 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1005 [2020-09-21 12:22:28,505 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:28,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-21 12:22:28,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-21 12:22:28,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-09-21 12:22:28,506 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:28,529 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 12:22:28,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:28,544 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:28,567 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:28,622 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:28,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:28,675 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:29,101 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:29,538 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:29,538 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-09-21 12:22:29,539 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-21 12:22:29,539 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1001 [2020-09-21 12:22:29,539 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:29,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-21 12:22:29,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:29,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-09-21 12:22:29,540 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:22:29,571 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 12:22:29,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:29,579 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:29,598 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:29,598 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-09-21 12:22:29,598 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:22:29,598 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-09-21 12:22:29,599 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:29,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:22:29,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:29,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-21 12:22:29,600 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:29,604 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 12:22:29,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:29,605 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:29,609 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:29,609 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 12:22:29,609 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:22:29,610 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 12:22:29,610 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:29,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:22:29,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:29,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:22:29,611 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:29,613 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-21 12:22:29,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:29,614 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:29,617 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:29,617 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 12:22:29,618 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:22:29,618 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:22:29,618 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:29,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:22:29,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:29,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:22:29,619 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:29,621 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-09-21 12:22:29,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:29,624 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:29,640 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:29,640 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 12:22:29,641 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:22:29,641 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-21 12:22:29,641 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:29,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 12:22:29,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:29,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-21 12:22:29,642 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:29,664 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-21 12:22:29,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:29,678 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:29,699 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:29,736 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:29,778 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:29,793 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:30,672 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:30,673 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-09-21 12:22:30,673 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-21 12:22:30,673 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1001 [2020-09-21 12:22:30,674 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:30,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-21 12:22:30,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-21 12:22:30,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-21 12:22:30,675 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:22:30,716 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 12:22:30,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:30,726 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:30,743 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:30,760 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:30,868 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:30,869 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-09-21 12:22:30,869 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-21 12:22:30,869 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 146 [2020-09-21 12:22:30,870 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:30,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 12:22:30,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:30,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-09-21 12:22:30,870 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:30,933 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 12:22:30,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:30,936 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:30,944 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:30,944 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 12:22:30,945 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:22:30,945 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-21 12:22:30,945 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:30,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:22:30,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:30,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-21 12:22:30,946 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:30,949 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-21 12:22:30,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:30,957 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:30,964 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:30,964 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 12:22:30,965 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:22:30,965 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-21 12:22:30,965 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:30,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:22:30,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:30,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 12:22:30,966 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:30,971 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-09-21 12:22:30,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:30,974 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:30,982 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:30,982 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 12:22:30,982 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:22:30,983 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-21 12:22:30,983 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:30,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:22:30,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:30,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-21 12:22:30,984 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:31,008 INFO L134 CoverageAnalysis]: Checked inductivity of 296 backedges. 97 proven. 80 refuted. 0 times theorem prover too weak. 119 trivial. 0 not checked. [2020-09-21 12:22:31,013 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1087737330] [2020-09-21 12:22:31,015 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 12:22:31,015 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-09-21 12:22:31,015 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1234363372] [2020-09-21 12:22:31,017 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-21 12:22:31,017 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:22:31,017 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-21 12:22:31,018 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2020-09-21 12:22:31,018 INFO L87 Difference]: Start difference. First operand 41 states and 50 transitions. Second operand 10 states. [2020-09-21 12:22:31,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:22:31,241 INFO L93 Difference]: Finished difference Result 84 states and 119 transitions. [2020-09-21 12:22:31,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-21 12:22:31,242 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 82 [2020-09-21 12:22:31,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:22:31,245 INFO L225 Difference]: With dead ends: 84 [2020-09-21 12:22:31,245 INFO L226 Difference]: Without dead ends: 52 [2020-09-21 12:22:31,246 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 23 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=147, Unknown=0, NotChecked=0, Total=210 [2020-09-21 12:22:31,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2020-09-21 12:22:31,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 46. [2020-09-21 12:22:31,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2020-09-21 12:22:31,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 57 transitions. [2020-09-21 12:22:31,264 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 57 transitions. Word has length 82 [2020-09-21 12:22:31,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:22:31,264 INFO L479 AbstractCegarLoop]: Abstraction has 46 states and 57 transitions. [2020-09-21 12:22:31,265 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-21 12:22:31,265 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 57 transitions. [2020-09-21 12:22:31,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2020-09-21 12:22:31,270 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:22:31,270 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 7, 4, 4, 4, 4, 4, 4, 4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 12:22:31,270 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-21 12:22:31,270 INFO L427 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:22:31,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:22:31,271 INFO L82 PathProgramCache]: Analyzing trace with hash 2001184551, now seen corresponding path program 6 times [2020-09-21 12:22:31,271 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:22:31,272 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1552195515] [2020-09-21 12:22:31,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:22:31,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:31,291 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:31,329 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:31,362 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:31,428 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:32,286 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:32,287 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 93 [2020-09-21 12:22:32,287 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-21 12:22:32,287 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1003 [2020-09-21 12:22:32,287 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:32,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-21 12:22:32,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-21 12:22:32,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-09-21 12:22:32,288 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:32,304 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:22:32,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:32,306 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:32,307 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:32,307 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:22:32,307 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:22:32,307 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 12:22:32,308 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:32,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:22:32,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:32,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:22:32,309 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:32,310 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-21 12:22:32,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:32,333 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:32,365 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:32,400 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:32,477 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:33,321 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:33,322 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-09-21 12:22:33,322 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-21 12:22:33,322 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1000 [2020-09-21 12:22:33,322 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:33,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-21 12:22:33,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-21 12:22:33,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-21 12:22:33,323 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:33,355 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 12:22:33,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:33,367 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:33,395 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:33,395 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-09-21 12:22:33,395 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:22:33,395 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-09-21 12:22:33,396 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:33,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:22:33,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:33,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-21 12:22:33,396 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:33,403 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 12:22:33,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:33,407 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:33,415 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:33,415 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-09-21 12:22:33,415 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:22:33,415 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-21 12:22:33,416 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:33,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:22:33,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:33,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:22:33,416 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:33,420 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 12:22:33,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:33,422 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:33,426 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:33,426 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 12:22:33,426 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:22:33,427 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 12:22:33,427 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:33,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:22:33,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:33,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:22:33,428 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:22:33,431 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-21 12:22:33,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:33,433 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:33,436 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:33,437 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 12:22:33,437 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:22:33,437 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:22:33,438 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:33,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:22:33,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:33,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:22:33,439 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:22:33,443 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-09-21 12:22:33,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:33,445 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:33,446 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:33,447 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 12:22:33,447 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:22:33,447 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:22:33,447 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:33,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:22:33,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:33,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:22:33,449 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:22:33,452 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-21 12:22:33,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:33,460 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:33,473 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:33,690 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:33,690 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-09-21 12:22:33,691 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-21 12:22:33,691 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 234 [2020-09-21 12:22:33,691 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:33,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-21 12:22:33,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:33,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-09-21 12:22:33,692 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:33,715 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 12:22:33,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:33,719 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:33,732 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:33,733 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 12:22:33,733 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:22:33,733 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-21 12:22:33,733 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:33,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 12:22:33,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:33,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-21 12:22:33,734 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:33,754 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-21 12:22:33,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:33,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:33,763 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:33,763 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 12:22:33,763 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:22:33,763 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-21 12:22:33,764 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:33,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:22:33,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:33,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 12:22:33,764 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:33,773 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 66 proven. 29 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked. [2020-09-21 12:22:33,774 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1552195515] [2020-09-21 12:22:33,774 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 12:22:33,774 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-09-21 12:22:33,775 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [166439759] [2020-09-21 12:22:33,775 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-21 12:22:33,775 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:22:33,776 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-21 12:22:33,776 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-09-21 12:22:33,776 INFO L87 Difference]: Start difference. First operand 46 states and 57 transitions. Second operand 8 states. [2020-09-21 12:22:33,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:22:33,891 INFO L93 Difference]: Finished difference Result 53 states and 65 transitions. [2020-09-21 12:22:33,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-21 12:22:33,892 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 68 [2020-09-21 12:22:33,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:22:33,894 INFO L225 Difference]: With dead ends: 53 [2020-09-21 12:22:33,894 INFO L226 Difference]: Without dead ends: 49 [2020-09-21 12:22:33,894 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-09-21 12:22:33,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2020-09-21 12:22:33,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 46. [2020-09-21 12:22:33,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2020-09-21 12:22:33,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 57 transitions. [2020-09-21 12:22:33,909 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 57 transitions. Word has length 68 [2020-09-21 12:22:33,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:22:33,910 INFO L479 AbstractCegarLoop]: Abstraction has 46 states and 57 transitions. [2020-09-21 12:22:33,910 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-21 12:22:33,910 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 57 transitions. [2020-09-21 12:22:33,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2020-09-21 12:22:33,911 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:22:33,911 INFO L422 BasicCegarLoop]: trace histogram [19, 19, 15, 9, 9, 9, 9, 9, 9, 9, 6, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 12:22:33,912 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-09-21 12:22:33,912 INFO L427 AbstractCegarLoop]: === Iteration 11 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:22:33,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:22:33,912 INFO L82 PathProgramCache]: Analyzing trace with hash -1040445716, now seen corresponding path program 7 times [2020-09-21 12:22:33,912 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:22:33,913 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1639627685] [2020-09-21 12:22:33,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:22:33,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:33,961 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:34,025 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:34,076 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:34,168 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:34,227 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:34,388 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:34,538 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:34,573 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:34,640 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:34,942 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:34,942 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-09-21 12:22:34,943 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-09-21 12:22:34,943 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1003 [2020-09-21 12:22:34,943 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:34,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-21 12:22:34,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-21 12:22:34,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-09-21 12:22:34,944 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:34,977 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:22:34,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:34,979 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:34,980 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:34,980 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:22:34,980 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:22:34,980 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 12:22:34,980 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:34,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:22:34,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:34,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:22:34,981 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:34,982 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-21 12:22:35,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:35,027 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:35,117 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:35,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:35,256 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:35,322 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:35,382 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:36,007 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:36,007 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 169 [2020-09-21 12:22:36,008 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-21 12:22:36,008 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1001 [2020-09-21 12:22:36,008 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:36,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-21 12:22:36,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-21 12:22:36,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 134 [2020-09-21 12:22:36,009 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:36,046 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 12:22:36,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:36,067 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:36,097 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:36,132 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:36,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:36,245 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:36,317 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:36,389 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:36,432 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:37,064 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:37,064 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-09-21 12:22:37,064 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-09-21 12:22:37,065 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1008 [2020-09-21 12:22:37,065 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:37,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-21 12:22:37,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:37,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-21 12:22:37,067 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:22:37,117 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 12:22:37,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:37,130 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:37,160 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:37,161 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-09-21 12:22:37,161 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:22:37,161 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-09-21 12:22:37,161 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:37,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:22:37,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:37,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-21 12:22:37,162 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:22:37,173 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 12:22:37,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:37,176 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:37,183 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:37,183 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-09-21 12:22:37,184 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:22:37,184 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-21 12:22:37,184 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:37,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:22:37,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:37,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:22:37,185 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:37,190 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 12:22:37,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:37,192 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:37,196 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:37,196 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 12:22:37,196 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:22:37,196 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 12:22:37,197 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:37,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:22:37,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:37,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:22:37,198 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:22:37,200 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-21 12:22:37,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:37,204 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:37,207 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:37,207 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 12:22:37,208 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:22:37,208 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 12:22:37,209 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:37,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:22:37,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:37,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:22:37,212 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-21 12:22:37,214 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-09-21 12:22:37,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:37,233 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:37,234 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:37,235 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 12:22:37,235 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:22:37,236 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:22:37,236 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:37,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:22:37,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:37,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:22:37,237 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:22:37,241 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-21 12:22:37,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:37,251 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:37,267 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:37,369 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:37,502 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:37,502 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-09-21 12:22:37,502 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-21 12:22:37,503 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 255 [2020-09-21 12:22:37,503 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:37,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-21 12:22:37,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:37,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-09-21 12:22:37,504 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:22:37,528 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 12:22:37,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:37,533 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:37,545 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:37,545 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 12:22:37,545 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:22:37,546 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-21 12:22:37,546 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:37,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 12:22:37,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:37,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-21 12:22:37,547 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:37,567 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-21 12:22:37,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:37,570 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:37,577 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:37,577 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 12:22:37,577 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:22:37,577 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-21 12:22:37,577 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:37,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:22:37,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:37,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 12:22:37,578 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:37,589 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-09-21 12:22:37,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:37,613 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:37,640 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:37,661 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:37,760 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:37,811 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:37,983 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:38,388 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:38,413 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:38,602 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:38,602 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-09-21 12:22:38,603 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-09-21 12:22:38,603 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 999 [2020-09-21 12:22:38,603 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:38,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-21 12:22:38,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-21 12:22:38,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-21 12:22:38,604 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:38,641 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 12:22:38,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:38,656 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:38,687 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:38,688 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-09-21 12:22:38,688 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:22:38,688 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-09-21 12:22:38,688 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:38,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:22:38,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:38,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-21 12:22:38,689 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:38,696 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 12:22:38,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:38,698 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:38,707 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:38,707 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-09-21 12:22:38,708 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:22:38,708 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-21 12:22:38,708 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:38,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:22:38,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:38,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:22:38,710 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:22:38,714 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 12:22:38,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:38,717 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:38,720 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:38,721 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 12:22:38,721 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:22:38,721 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 12:22:38,722 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:38,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:22:38,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:38,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:22:38,723 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:22:38,725 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-21 12:22:38,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:38,727 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:38,731 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:38,731 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 12:22:38,731 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:22:38,732 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:22:38,732 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:38,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:22:38,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:38,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:22:38,733 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:22:38,735 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-09-21 12:22:38,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:38,738 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:38,741 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:38,741 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 12:22:38,741 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:22:38,742 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 12:22:38,742 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:38,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:22:38,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:38,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:22:38,743 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:22:38,747 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-21 12:22:38,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:38,756 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:38,781 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:38,794 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:38,876 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:38,876 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-09-21 12:22:38,877 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-21 12:22:38,877 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 123 [2020-09-21 12:22:38,877 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:38,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 12:22:38,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:38,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-09-21 12:22:38,879 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:22:38,953 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 12:22:38,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:38,958 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:38,967 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:38,967 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 12:22:38,968 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:22:38,968 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-21 12:22:38,969 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:38,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:22:38,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:38,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-21 12:22:38,970 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:22:38,975 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-21 12:22:38,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:38,980 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:38,986 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:38,986 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 12:22:38,987 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:22:38,987 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-21 12:22:38,987 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:38,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:22:38,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:38,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 12:22:38,989 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:22:39,072 INFO L134 CoverageAnalysis]: Checked inductivity of 933 backedges. 239 proven. 186 refuted. 0 times theorem prover too weak. 508 trivial. 0 not checked. [2020-09-21 12:22:39,073 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1639627685] [2020-09-21 12:22:39,073 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 12:22:39,073 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-09-21 12:22:39,074 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1856440499] [2020-09-21 12:22:39,075 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-21 12:22:39,075 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:22:39,075 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-21 12:22:39,076 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2020-09-21 12:22:39,076 INFO L87 Difference]: Start difference. First operand 46 states and 57 transitions. Second operand 11 states. [2020-09-21 12:22:39,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:22:39,392 INFO L93 Difference]: Finished difference Result 108 states and 176 transitions. [2020-09-21 12:22:39,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-21 12:22:39,393 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 136 [2020-09-21 12:22:39,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:22:39,395 INFO L225 Difference]: With dead ends: 108 [2020-09-21 12:22:39,397 INFO L226 Difference]: Without dead ends: 63 [2020-09-21 12:22:39,398 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 40 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=80, Invalid=226, Unknown=0, NotChecked=0, Total=306 [2020-09-21 12:22:39,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2020-09-21 12:22:39,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 60. [2020-09-21 12:22:39,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60 states. [2020-09-21 12:22:39,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 85 transitions. [2020-09-21 12:22:39,419 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 85 transitions. Word has length 136 [2020-09-21 12:22:39,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:22:39,420 INFO L479 AbstractCegarLoop]: Abstraction has 60 states and 85 transitions. [2020-09-21 12:22:39,420 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-21 12:22:39,420 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 85 transitions. [2020-09-21 12:22:39,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2020-09-21 12:22:39,425 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:22:39,426 INFO L422 BasicCegarLoop]: trace histogram [21, 21, 17, 10, 10, 10, 10, 10, 10, 10, 7, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 12:22:39,426 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-09-21 12:22:39,426 INFO L427 AbstractCegarLoop]: === Iteration 12 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:22:39,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:22:39,426 INFO L82 PathProgramCache]: Analyzing trace with hash -1037714201, now seen corresponding path program 8 times [2020-09-21 12:22:39,427 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:22:39,427 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1199923576] [2020-09-21 12:22:39,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:22:39,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:39,459 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:39,511 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:39,782 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:39,865 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:39,941 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:40,069 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:40,301 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:40,452 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:40,452 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 199 [2020-09-21 12:22:40,453 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-21 12:22:40,453 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1006 [2020-09-21 12:22:40,453 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:40,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-21 12:22:40,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-21 12:22:40,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 157 [2020-09-21 12:22:40,454 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:40,489 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:22:40,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:40,490 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:40,491 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:40,491 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:22:40,491 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:22:40,491 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 12:22:40,492 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:40,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:22:40,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:40,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:22:40,492 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:40,493 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-21 12:22:40,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:40,551 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:40,653 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:40,795 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:40,848 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:41,135 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:41,313 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:41,522 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:41,522 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 187 [2020-09-21 12:22:41,522 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-21 12:22:41,523 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1001 [2020-09-21 12:22:41,523 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:41,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-21 12:22:41,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-21 12:22:41,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 149 [2020-09-21 12:22:41,524 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:22:41,586 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 12:22:41,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:41,629 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:41,670 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:41,713 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:41,747 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:41,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:41,896 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:42,127 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:42,281 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:42,610 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:42,611 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 134 [2020-09-21 12:22:42,611 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-09-21 12:22:42,611 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1001 [2020-09-21 12:22:42,611 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:42,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-21 12:22:42,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:42,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 131 [2020-09-21 12:22:42,612 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:42,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 12:22:42,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:42,673 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:42,700 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:42,752 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:42,828 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:42,954 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:42,981 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:43,007 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:43,163 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:43,662 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:43,663 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-09-21 12:22:43,663 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-09-21 12:22:43,663 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 999 [2020-09-21 12:22:43,663 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:43,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-21 12:22:43,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:43,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-21 12:22:43,664 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:22:43,690 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 12:22:43,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:43,700 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:43,729 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:43,730 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-09-21 12:22:43,730 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:22:43,730 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-09-21 12:22:43,730 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:43,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:22:43,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:43,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-21 12:22:43,731 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:43,737 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 12:22:43,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:43,740 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:43,747 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:43,747 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-09-21 12:22:43,747 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:22:43,748 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-21 12:22:43,748 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:43,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:22:43,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:43,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:22:43,749 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:43,751 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 12:22:43,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:43,753 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:43,756 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:43,756 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 12:22:43,756 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:22:43,756 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:22:43,757 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:43,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:22:43,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:43,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:22:43,757 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:43,759 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-21 12:22:43,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:43,761 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:43,764 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:43,764 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 12:22:43,765 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:22:43,765 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:22:43,765 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:43,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:22:43,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:43,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:22:43,766 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:43,767 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-09-21 12:22:43,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:43,769 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:43,772 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:43,772 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 12:22:43,772 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:22:43,772 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:22:43,772 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:43,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:22:43,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:43,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:22:43,773 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:43,777 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-21 12:22:43,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:43,784 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:43,796 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:43,815 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:43,945 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:43,945 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-09-21 12:22:43,945 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-21 12:22:43,945 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 164 [2020-09-21 12:22:43,945 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:43,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 12:22:43,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:43,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-09-21 12:22:43,946 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:43,994 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 12:22:43,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:43,997 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:44,004 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:44,004 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 12:22:44,005 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:22:44,005 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-21 12:22:44,005 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:44,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:22:44,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:44,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-21 12:22:44,006 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:44,008 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-21 12:22:44,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:44,010 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:44,016 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:44,017 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 12:22:44,017 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:22:44,017 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-21 12:22:44,017 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:44,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:22:44,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:44,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 12:22:44,018 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:44,023 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-09-21 12:22:44,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:44,034 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:44,060 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:44,060 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-09-21 12:22:44,060 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:22:44,060 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-09-21 12:22:44,061 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:44,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:22:44,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:44,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-21 12:22:44,061 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:44,066 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 12:22:44,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:44,068 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:44,076 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:44,076 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-09-21 12:22:44,076 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:22:44,076 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-21 12:22:44,076 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:44,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:22:44,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:44,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:22:44,077 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:44,080 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 12:22:44,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:44,082 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:44,083 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:44,083 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 12:22:44,084 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:22:44,084 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:22:44,084 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:44,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:22:44,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:44,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:22:44,085 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:44,087 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-21 12:22:44,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:44,088 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:44,091 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:44,091 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 12:22:44,091 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:22:44,091 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:22:44,091 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:44,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:22:44,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:44,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:22:44,092 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:44,094 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-09-21 12:22:44,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:44,095 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:44,099 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:44,099 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 12:22:44,099 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:22:44,099 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:22:44,099 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:44,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:22:44,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:44,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:22:44,100 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:44,110 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-09-21 12:22:44,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:44,122 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:44,142 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:44,181 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:44,268 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:44,365 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:44,866 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:45,116 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:45,116 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-09-21 12:22:45,116 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-21 12:22:45,116 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 999 [2020-09-21 12:22:45,117 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:45,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-21 12:22:45,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-21 12:22:45,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-21 12:22:45,117 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:45,157 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 12:22:45,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:45,165 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:45,183 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:45,183 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-09-21 12:22:45,184 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:22:45,184 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-09-21 12:22:45,184 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:45,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:22:45,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:45,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-21 12:22:45,185 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:45,189 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 12:22:45,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:45,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:45,194 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:45,194 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 12:22:45,194 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:22:45,194 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:22:45,194 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:45,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:22:45,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:45,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:22:45,195 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:45,197 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-21 12:22:45,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:45,198 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:45,200 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:45,200 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 12:22:45,200 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:22:45,200 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 12:22:45,201 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:45,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:22:45,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:45,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:22:45,201 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:45,203 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-09-21 12:22:45,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:45,207 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:45,223 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:45,224 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 12:22:45,224 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:22:45,224 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-21 12:22:45,224 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:45,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 12:22:45,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:45,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-21 12:22:45,225 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:45,290 INFO L134 CoverageAnalysis]: Checked inductivity of 1156 backedges. 294 proven. 204 refuted. 0 times theorem prover too weak. 658 trivial. 0 not checked. [2020-09-21 12:22:45,291 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1199923576] [2020-09-21 12:22:45,291 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 12:22:45,291 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-09-21 12:22:45,291 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1861300316] [2020-09-21 12:22:45,292 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-09-21 12:22:45,292 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:22:45,292 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-09-21 12:22:45,292 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2020-09-21 12:22:45,293 INFO L87 Difference]: Start difference. First operand 60 states and 85 transitions. Second operand 12 states. [2020-09-21 12:22:45,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:22:45,694 INFO L93 Difference]: Finished difference Result 144 states and 259 transitions. [2020-09-21 12:22:45,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-09-21 12:22:45,695 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 150 [2020-09-21 12:22:45,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:22:45,697 INFO L225 Difference]: With dead ends: 144 [2020-09-21 12:22:45,697 INFO L226 Difference]: Without dead ends: 85 [2020-09-21 12:22:45,700 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 83 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=144, Invalid=408, Unknown=0, NotChecked=0, Total=552 [2020-09-21 12:22:45,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2020-09-21 12:22:45,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 72. [2020-09-21 12:22:45,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72 states. [2020-09-21 12:22:45,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 110 transitions. [2020-09-21 12:22:45,722 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 110 transitions. Word has length 150 [2020-09-21 12:22:45,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:22:45,723 INFO L479 AbstractCegarLoop]: Abstraction has 72 states and 110 transitions. [2020-09-21 12:22:45,723 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-09-21 12:22:45,723 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 110 transitions. [2020-09-21 12:22:45,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2020-09-21 12:22:45,730 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:22:45,731 INFO L422 BasicCegarLoop]: trace histogram [31, 31, 25, 15, 15, 15, 15, 15, 15, 15, 10, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 12:22:45,731 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-09-21 12:22:45,731 INFO L427 AbstractCegarLoop]: === Iteration 13 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:22:45,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:22:45,731 INFO L82 PathProgramCache]: Analyzing trace with hash 706081956, now seen corresponding path program 9 times [2020-09-21 12:22:45,731 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:22:45,732 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [743047416] [2020-09-21 12:22:45,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:22:45,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:45,772 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:45,834 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:45,922 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:46,046 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:46,281 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:46,767 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:46,767 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 287 [2020-09-21 12:22:46,767 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-21 12:22:46,767 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1011 [2020-09-21 12:22:46,767 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:46,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-21 12:22:46,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-21 12:22:46,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-09-21 12:22:46,768 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:46,811 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:22:46,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:46,813 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:46,813 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:46,814 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:22:46,814 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:22:46,814 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 12:22:46,814 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:46,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:22:46,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:46,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:22:46,815 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:46,816 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-21 12:22:46,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:46,888 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:46,973 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:47,059 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:47,160 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:47,248 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:47,327 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:47,783 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:47,830 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:47,859 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:47,859 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 275 [2020-09-21 12:22:47,859 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-09-21 12:22:47,859 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1010 [2020-09-21 12:22:47,859 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:47,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-21 12:22:47,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-21 12:22:47,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 193 [2020-09-21 12:22:47,860 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:47,892 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 12:22:47,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:47,926 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:47,969 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:48,129 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:48,196 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:48,234 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:48,288 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:48,339 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:48,914 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:48,915 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 134 [2020-09-21 12:22:48,915 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-21 12:22:48,915 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1004 [2020-09-21 12:22:48,915 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:48,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-21 12:22:48,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:48,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 131 [2020-09-21 12:22:48,916 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:48,958 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 12:22:48,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:48,978 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:49,026 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:49,026 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-09-21 12:22:49,026 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:22:49,026 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 58 [2020-09-21 12:22:49,027 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:49,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:22:49,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:49,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-21 12:22:49,027 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:49,036 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 12:22:49,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:49,040 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:49,052 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:49,052 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-09-21 12:22:49,052 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:22:49,052 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-21 12:22:49,053 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:49,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:22:49,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:49,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:22:49,053 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:49,058 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 12:22:49,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:49,060 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:49,067 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:49,068 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-09-21 12:22:49,068 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:22:49,068 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-21 12:22:49,068 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:49,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:22:49,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:49,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:22:49,069 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:49,072 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 12:22:49,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:49,073 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:49,076 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:49,077 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 12:22:49,077 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:22:49,077 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:22:49,077 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:49,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:22:49,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:49,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:22:49,078 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:49,079 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-21 12:22:49,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:49,081 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:49,083 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:49,084 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 12:22:49,084 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:22:49,084 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:22:49,084 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:49,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:22:49,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:49,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:22:49,085 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:49,087 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-09-21 12:22:49,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:49,088 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:49,090 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:49,090 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 12:22:49,090 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:22:49,090 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:22:49,091 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:49,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:22:49,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:49,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:22:49,091 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:49,093 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-21 12:22:49,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:49,096 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:49,103 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:49,104 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-09-21 12:22:49,104 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:22:49,104 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-21 12:22:49,104 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:49,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:22:49,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:49,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:22:49,105 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:49,108 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 12:22:49,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:49,109 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:49,112 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:49,113 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 12:22:49,113 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:22:49,113 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:22:49,113 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:49,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:22:49,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:49,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:22:49,114 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:49,116 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-21 12:22:49,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:49,117 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:49,120 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:49,120 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 12:22:49,120 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:22:49,120 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:22:49,121 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:49,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:22:49,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:49,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:22:49,121 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:49,124 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-09-21 12:22:49,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:49,136 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:49,157 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:49,199 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:49,224 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:49,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:49,644 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:50,130 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:50,130 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-09-21 12:22:50,130 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-21 12:22:50,130 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 999 [2020-09-21 12:22:50,131 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:50,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-21 12:22:50,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:50,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-09-21 12:22:50,131 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:50,153 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 12:22:50,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:50,160 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:50,176 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:50,176 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-09-21 12:22:50,177 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:22:50,177 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-21 12:22:50,177 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:50,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:22:50,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:50,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-21 12:22:50,178 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:50,181 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 12:22:50,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:50,183 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:50,186 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:50,186 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 12:22:50,186 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:22:50,187 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:22:50,187 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:50,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:22:50,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:50,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:22:50,188 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:50,189 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-21 12:22:50,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:50,191 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:50,192 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:50,192 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 12:22:50,193 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:22:50,193 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 12:22:50,193 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:50,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:22:50,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:50,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:22:50,194 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:50,195 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-09-21 12:22:50,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:50,199 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:50,211 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:50,212 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 12:22:50,212 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:22:50,213 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-21 12:22:50,213 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:50,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 12:22:50,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:50,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-21 12:22:50,214 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:22:50,250 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-09-21 12:22:50,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:50,287 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:50,334 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:50,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:50,436 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:50,579 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:50,618 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:51,269 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:51,269 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 134 [2020-09-21 12:22:51,269 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-21 12:22:51,269 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1001 [2020-09-21 12:22:51,269 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:51,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-21 12:22:51,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-21 12:22:51,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 130 [2020-09-21 12:22:51,270 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:51,303 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 12:22:51,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:51,321 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:51,343 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:51,402 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:51,448 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:51,575 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:51,592 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:51,966 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:51,986 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:52,311 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:52,311 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-09-21 12:22:52,311 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-09-21 12:22:52,311 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 999 [2020-09-21 12:22:52,312 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:52,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-21 12:22:52,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:52,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-21 12:22:52,312 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:52,376 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 12:22:52,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:52,389 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:52,417 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:52,417 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-09-21 12:22:52,417 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:22:52,418 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-09-21 12:22:52,418 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:52,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:22:52,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:52,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-21 12:22:52,418 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:52,424 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 12:22:52,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:52,427 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:52,434 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:52,434 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-09-21 12:22:52,435 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:22:52,435 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-21 12:22:52,435 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:52,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:22:52,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:52,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:22:52,436 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:52,439 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 12:22:52,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:52,440 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:52,443 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:52,444 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 12:22:52,444 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:22:52,444 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:22:52,444 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:52,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:22:52,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:52,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:22:52,445 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:52,446 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-21 12:22:52,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:52,448 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:52,450 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:52,451 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 12:22:52,451 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:22:52,451 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:22:52,451 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:52,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:22:52,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:52,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:22:52,452 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:52,453 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-09-21 12:22:52,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:52,455 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:52,458 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:52,458 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 12:22:52,459 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:22:52,459 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:22:52,459 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:52,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:22:52,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:52,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:22:52,460 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:52,462 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-21 12:22:52,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:52,469 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:52,481 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:52,495 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:52,697 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:52,698 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-09-21 12:22:52,698 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-21 12:22:52,698 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 231 [2020-09-21 12:22:52,699 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:52,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 12:22:52,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:52,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-09-21 12:22:52,700 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:52,752 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 12:22:52,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:52,755 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:52,762 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:52,762 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 12:22:52,762 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:22:52,763 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-21 12:22:52,763 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:52,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:22:52,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:52,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-21 12:22:52,764 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:52,766 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-21 12:22:52,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:52,769 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:52,776 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:52,776 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 12:22:52,776 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:22:52,777 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-21 12:22:52,777 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:52,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:22:52,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:52,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 12:22:52,778 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:52,789 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-09-21 12:22:52,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:52,801 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:52,828 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:52,828 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-09-21 12:22:52,828 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:22:52,828 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-09-21 12:22:52,829 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:52,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:22:52,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:52,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-21 12:22:52,829 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:52,835 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 12:22:52,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:52,837 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:52,845 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:52,845 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-09-21 12:22:52,845 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:22:52,845 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-21 12:22:52,846 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:52,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:22:52,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:52,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:22:52,846 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:52,849 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 12:22:52,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:52,850 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:52,854 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:52,854 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 12:22:52,854 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:22:52,854 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:22:52,854 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:52,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:22:52,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:52,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:22:52,855 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:52,857 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-21 12:22:52,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:52,858 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:52,861 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:52,861 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 12:22:52,861 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:22:52,861 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:22:52,862 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:52,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:22:52,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:52,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:22:52,863 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:52,864 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-09-21 12:22:52,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:52,866 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:52,869 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:52,869 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 12:22:52,869 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:22:52,869 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:22:52,870 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:52,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:22:52,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:52,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:22:52,871 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:52,950 INFO L134 CoverageAnalysis]: Checked inductivity of 2580 backedges. 520 proven. 402 refuted. 0 times theorem prover too weak. 1658 trivial. 0 not checked. [2020-09-21 12:22:52,951 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [743047416] [2020-09-21 12:22:52,951 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 12:22:52,951 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-09-21 12:22:52,951 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1770971163] [2020-09-21 12:22:52,952 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-09-21 12:22:52,952 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:22:52,952 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-09-21 12:22:52,953 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2020-09-21 12:22:52,953 INFO L87 Difference]: Start difference. First operand 72 states and 110 transitions. Second operand 13 states. [2020-09-21 12:22:53,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:22:53,514 INFO L93 Difference]: Finished difference Result 161 states and 328 transitions. [2020-09-21 12:22:53,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-09-21 12:22:53,514 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 218 [2020-09-21 12:22:53,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:22:53,518 INFO L225 Difference]: With dead ends: 161 [2020-09-21 12:22:53,518 INFO L226 Difference]: Without dead ends: 94 [2020-09-21 12:22:53,520 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 62 SyntacticMatches, 2 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=139, Invalid=413, Unknown=0, NotChecked=0, Total=552 [2020-09-21 12:22:53,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2020-09-21 12:22:53,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 84. [2020-09-21 12:22:53,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 84 states. [2020-09-21 12:22:53,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 135 transitions. [2020-09-21 12:22:53,532 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 135 transitions. Word has length 218 [2020-09-21 12:22:53,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:22:53,532 INFO L479 AbstractCegarLoop]: Abstraction has 84 states and 135 transitions. [2020-09-21 12:22:53,532 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-09-21 12:22:53,532 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 135 transitions. [2020-09-21 12:22:53,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 246 [2020-09-21 12:22:53,536 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:22:53,536 INFO L422 BasicCegarLoop]: trace histogram [35, 35, 28, 17, 17, 17, 17, 17, 17, 17, 11, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 12:22:53,536 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-09-21 12:22:53,536 INFO L427 AbstractCegarLoop]: === Iteration 14 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:22:53,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:22:53,537 INFO L82 PathProgramCache]: Analyzing trace with hash 1660049266, now seen corresponding path program 10 times [2020-09-21 12:22:53,537 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:22:53,537 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1264777195] [2020-09-21 12:22:53,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:22:53,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:53,580 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:53,659 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:53,752 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:53,826 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:53,898 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:54,301 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:54,565 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:54,565 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 322 [2020-09-21 12:22:54,565 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-21 12:22:54,566 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1002 [2020-09-21 12:22:54,566 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:54,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-21 12:22:54,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-09-21 12:22:54,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 263 [2020-09-21 12:22:54,566 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:54,606 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:22:54,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:54,607 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:54,608 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:54,608 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:22:54,608 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:22:54,608 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 12:22:54,608 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:54,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:22:54,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:54,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:22:54,609 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:54,609 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-21 12:22:54,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:54,687 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:54,778 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:54,870 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:54,969 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:55,036 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:55,105 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:55,401 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:55,642 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:55,686 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:55,686 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-09-21 12:22:55,687 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-09-21 12:22:55,687 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1033 [2020-09-21 12:22:55,687 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:55,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-21 12:22:55,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-21 12:22:55,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 263 [2020-09-21 12:22:55,688 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:55,731 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 12:22:55,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:55,794 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:55,851 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:55,894 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:55,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:55,976 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:56,048 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:56,095 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:56,252 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:56,288 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:56,312 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:56,763 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:56,763 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 222 [2020-09-21 12:22:56,763 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-09-21 12:22:56,764 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1002 [2020-09-21 12:22:56,764 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:56,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-21 12:22:56,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:56,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 219 [2020-09-21 12:22:56,765 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:56,796 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 12:22:56,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:56,830 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:56,867 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:56,897 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:56,933 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:56,975 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:57,005 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:57,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:57,813 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:57,813 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 134 [2020-09-21 12:22:57,813 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-21 12:22:57,813 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1000 [2020-09-21 12:22:57,813 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:57,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-21 12:22:57,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:57,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 131 [2020-09-21 12:22:57,814 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:57,842 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 12:22:57,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:57,860 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:57,879 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:57,905 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:57,962 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:57,992 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:58,010 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:58,029 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:58,046 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:58,063 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:58,852 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:58,852 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-09-21 12:22:58,853 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-09-21 12:22:58,853 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1001 [2020-09-21 12:22:58,853 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:58,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-21 12:22:58,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:58,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-21 12:22:58,853 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:58,874 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 12:22:58,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:58,884 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:58,903 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:58,903 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-09-21 12:22:58,903 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:22:58,903 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-09-21 12:22:58,904 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:58,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:22:58,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:58,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-21 12:22:58,905 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:58,909 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 12:22:58,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:58,912 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:58,919 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:58,920 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-09-21 12:22:58,920 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:22:58,920 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-21 12:22:58,920 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:58,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:22:58,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:58,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:22:58,921 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:58,924 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 12:22:58,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:58,925 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:58,928 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:58,929 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 12:22:58,929 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:22:58,929 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:22:58,929 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:58,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:22:58,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:58,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:22:58,930 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:58,932 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-21 12:22:58,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:58,933 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:58,936 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:58,936 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 12:22:58,936 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:22:58,936 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:22:58,937 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:58,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:22:58,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:58,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:22:58,938 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:58,939 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-09-21 12:22:58,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:58,941 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:58,942 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:58,942 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 12:22:58,942 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:22:58,943 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:22:58,943 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:58,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:22:58,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:58,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:22:58,944 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:58,946 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-21 12:22:58,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:58,952 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:58,964 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:58,975 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:59,131 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:59,132 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-09-21 12:22:59,132 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-21 12:22:59,132 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 183 [2020-09-21 12:22:59,132 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:59,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-21 12:22:59,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:59,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-09-21 12:22:59,133 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:59,169 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 12:22:59,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:59,172 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:59,178 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:59,178 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 12:22:59,178 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:22:59,178 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-21 12:22:59,178 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:59,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:22:59,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:59,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-21 12:22:59,179 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:59,180 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-21 12:22:59,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:59,182 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:59,187 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:59,188 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 12:22:59,188 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:22:59,188 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-21 12:22:59,188 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:59,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:22:59,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:59,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 12:22:59,189 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:59,191 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-09-21 12:22:59,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:59,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:59,222 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:59,222 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-09-21 12:22:59,222 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:22:59,222 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-09-21 12:22:59,223 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:59,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:22:59,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:59,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-21 12:22:59,223 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:59,227 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 12:22:59,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:59,230 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:59,236 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:59,236 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-09-21 12:22:59,236 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:22:59,236 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-21 12:22:59,236 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:59,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:22:59,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:59,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:22:59,237 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:59,239 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 12:22:59,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:59,240 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:59,243 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:59,243 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 12:22:59,243 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:22:59,243 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:22:59,243 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:59,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:22:59,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:59,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:22:59,244 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:59,245 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-21 12:22:59,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:59,246 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:59,248 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:59,249 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 12:22:59,249 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:22:59,249 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:22:59,249 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:59,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:22:59,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:59,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:22:59,250 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:59,251 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-09-21 12:22:59,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:59,252 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:59,254 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:59,254 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 12:22:59,255 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:22:59,255 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:22:59,255 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:59,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:22:59,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:59,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:22:59,255 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:59,260 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-09-21 12:22:59,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:59,277 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:59,314 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:59,314 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-09-21 12:22:59,314 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:22:59,314 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-09-21 12:22:59,314 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:59,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:22:59,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:59,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-21 12:22:59,315 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:59,321 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 12:22:59,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:59,324 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:59,334 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:59,335 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-09-21 12:22:59,335 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:22:59,335 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-21 12:22:59,335 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:59,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:22:59,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:59,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:22:59,336 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:59,339 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 12:22:59,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:59,341 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:59,348 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:59,348 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-09-21 12:22:59,348 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:22:59,348 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-21 12:22:59,348 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:59,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:22:59,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:59,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:22:59,349 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:59,351 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 12:22:59,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:59,352 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:59,355 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:59,355 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 12:22:59,355 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:22:59,355 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:22:59,355 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:59,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:22:59,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:59,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:22:59,356 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:59,357 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-21 12:22:59,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:59,359 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:59,361 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:59,361 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 12:22:59,362 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:22:59,362 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:22:59,362 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:59,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:22:59,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:59,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:22:59,363 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:59,364 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-09-21 12:22:59,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:59,365 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:59,368 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:59,368 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 12:22:59,368 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:22:59,369 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:22:59,369 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:59,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:22:59,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:59,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:22:59,369 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:59,371 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-21 12:22:59,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:59,373 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:59,379 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:59,379 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-09-21 12:22:59,379 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:22:59,380 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-21 12:22:59,380 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:59,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:22:59,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:59,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:22:59,380 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:59,383 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 12:22:59,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:59,384 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:59,387 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:59,388 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 12:22:59,388 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:22:59,388 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:22:59,388 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:59,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:22:59,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:59,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:22:59,389 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:59,391 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-21 12:22:59,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:59,392 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:59,395 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:59,396 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 12:22:59,396 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:22:59,396 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:22:59,396 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:59,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:22:59,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:59,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:22:59,397 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:59,414 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2020-09-21 12:22:59,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:59,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:59,461 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:59,485 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:59,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:00,424 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:00,424 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-09-21 12:23:00,424 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-21 12:23:00,425 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1000 [2020-09-21 12:23:00,425 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:00,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-21 12:23:00,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-21 12:23:00,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-21 12:23:00,425 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:23:00,453 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 12:23:00,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:00,463 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:00,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:00,524 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:01,459 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:01,459 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-09-21 12:23:01,459 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-21 12:23:01,459 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1000 [2020-09-21 12:23:01,459 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:01,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-21 12:23:01,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:23:01,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-09-21 12:23:01,460 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:23:01,478 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 12:23:01,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:01,484 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:01,497 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:01,497 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-09-21 12:23:01,497 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:23:01,497 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-21 12:23:01,498 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:01,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:23:01,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:23:01,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-21 12:23:01,498 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:23:01,500 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 12:23:01,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:01,502 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:01,505 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:01,505 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 12:23:01,505 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:23:01,505 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:23:01,505 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:01,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:23:01,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:23:01,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:23:01,506 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:23:01,507 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-21 12:23:01,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:01,508 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:01,510 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:01,510 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 12:23:01,511 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:23:01,511 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:23:01,511 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:01,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:23:01,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:23:01,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:23:01,511 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:23:01,512 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-09-21 12:23:01,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:01,515 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:01,525 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:01,526 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 12:23:01,526 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:23:01,526 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-21 12:23:01,526 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:01,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 12:23:01,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:23:01,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-21 12:23:01,527 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:23:01,542 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-21 12:23:01,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:01,549 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:01,562 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:01,563 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-09-21 12:23:01,563 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:23:01,563 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-21 12:23:01,563 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:01,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:23:01,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:23:01,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-21 12:23:01,563 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:23:01,566 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 12:23:01,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:01,567 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:01,570 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:01,570 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 12:23:01,571 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:23:01,571 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:23:01,571 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:01,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:23:01,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:23:01,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:23:01,571 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:23:01,573 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-21 12:23:01,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:01,574 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:01,576 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:01,576 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 12:23:01,576 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:23:01,576 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:23:01,577 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:01,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:23:01,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:23:01,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:23:01,577 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:23:01,633 INFO L134 CoverageAnalysis]: Checked inductivity of 3302 backedges. 644 proven. 570 refuted. 0 times theorem prover too weak. 2088 trivial. 0 not checked. [2020-09-21 12:23:01,633 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1264777195] [2020-09-21 12:23:01,634 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 12:23:01,634 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-09-21 12:23:01,634 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1922887654] [2020-09-21 12:23:01,635 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-09-21 12:23:01,635 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:23:01,635 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-09-21 12:23:01,635 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=143, Unknown=0, NotChecked=0, Total=182 [2020-09-21 12:23:01,636 INFO L87 Difference]: Start difference. First operand 84 states and 135 transitions. Second operand 14 states. [2020-09-21 12:23:02,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:23:02,153 INFO L93 Difference]: Finished difference Result 179 states and 354 transitions. [2020-09-21 12:23:02,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-09-21 12:23:02,154 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 245 [2020-09-21 12:23:02,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:23:02,156 INFO L225 Difference]: With dead ends: 179 [2020-09-21 12:23:02,156 INFO L226 Difference]: Without dead ends: 98 [2020-09-21 12:23:02,159 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 97 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=161, Invalid=489, Unknown=0, NotChecked=0, Total=650 [2020-09-21 12:23:02,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2020-09-21 12:23:02,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 86. [2020-09-21 12:23:02,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 86 states. [2020-09-21 12:23:02,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 117 transitions. [2020-09-21 12:23:02,177 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 117 transitions. Word has length 245 [2020-09-21 12:23:02,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:23:02,180 INFO L479 AbstractCegarLoop]: Abstraction has 86 states and 117 transitions. [2020-09-21 12:23:02,180 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-09-21 12:23:02,180 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 117 transitions. [2020-09-21 12:23:02,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 287 [2020-09-21 12:23:02,184 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:23:02,184 INFO L422 BasicCegarLoop]: trace histogram [41, 41, 33, 20, 20, 20, 20, 20, 20, 20, 13, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 12:23:02,185 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-09-21 12:23:02,185 INFO L427 AbstractCegarLoop]: === Iteration 15 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:23:02,185 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:23:02,185 INFO L82 PathProgramCache]: Analyzing trace with hash -1425621089, now seen corresponding path program 11 times [2020-09-21 12:23:02,185 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:23:02,186 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [689239990] [2020-09-21 12:23:02,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:23:02,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:02,236 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:02,313 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:02,432 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:02,537 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:02,676 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:02,808 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:03,095 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:03,221 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:03,221 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 375 [2020-09-21 12:23:03,222 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-21 12:23:03,222 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1004 [2020-09-21 12:23:03,222 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:03,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-21 12:23:03,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-21 12:23:03,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 207 [2020-09-21 12:23:03,222 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:23:03,268 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:23:03,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:03,269 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:03,270 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:03,270 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:23:03,270 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:23:03,270 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 12:23:03,270 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:03,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:23:03,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:23:03,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:23:03,271 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:23:03,271 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-21 12:23:03,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:03,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:03,490 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:03,577 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:03,669 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:03,750 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:03,889 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:03,955 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:04,011 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:04,323 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:04,323 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 363 [2020-09-21 12:23:04,323 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-09-21 12:23:04,323 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1003 [2020-09-21 12:23:04,324 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:04,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-21 12:23:04,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-21 12:23:04,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 359 [2020-09-21 12:23:04,324 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:23:04,372 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 12:23:04,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat