/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=BIGGEST --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/array-examples/standard_palindrome_ground.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-12 09:59:46,454 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-12 09:59:46,457 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-12 09:59:46,486 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-12 09:59:46,487 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-12 09:59:46,488 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-12 09:59:46,489 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-12 09:59:46,491 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-12 09:59:46,493 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-12 09:59:46,493 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-12 09:59:46,494 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-12 09:59:46,496 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-12 09:59:46,496 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-12 09:59:46,497 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-12 09:59:46,498 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-12 09:59:46,499 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-12 09:59:46,500 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-12 09:59:46,501 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-12 09:59:46,502 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-12 09:59:46,504 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-12 09:59:46,505 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-12 09:59:46,506 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-12 09:59:46,508 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-12 09:59:46,508 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-12 09:59:46,511 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-12 09:59:46,511 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-12 09:59:46,511 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-12 09:59:46,512 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-12 09:59:46,513 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-12 09:59:46,513 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-12 09:59:46,514 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-12 09:59:46,514 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-12 09:59:46,515 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-12 09:59:46,516 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-12 09:59:46,517 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-12 09:59:46,517 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-12 09:59:46,518 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-12 09:59:46,518 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-12 09:59:46,518 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-12 09:59:46,519 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-12 09:59:46,520 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-12 09:59:46,520 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 [2020-10-12 09:59:46,543 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-12 09:59:46,544 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-12 09:59:46,545 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-12 09:59:46,545 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-12 09:59:46,545 INFO L138 SettingsManager]: * Use SBE=true [2020-10-12 09:59:46,546 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-12 09:59:46,546 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-12 09:59:46,546 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-12 09:59:46,546 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-12 09:59:46,546 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-12 09:59:46,546 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-12 09:59:46,547 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-12 09:59:46,547 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-12 09:59:46,547 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-12 09:59:46,547 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-12 09:59:46,547 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-12 09:59:46,548 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-12 09:59:46,548 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-12 09:59:46,548 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-12 09:59:46,548 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-12 09:59:46,548 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-12 09:59:46,549 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-12 09:59:46,549 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-12 09:59:46,549 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-12 09:59:46,549 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-12 09:59:46,549 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-12 09:59:46,549 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-12 09:59:46,550 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-12 09:59:46,550 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-12 09:59:46,550 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; [2020-10-12 09:59:46,868 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-12 09:59:46,886 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-12 09:59:46,891 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-12 09:59:46,893 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-12 09:59:46,895 INFO L275 PluginConnector]: CDTParser initialized [2020-10-12 09:59:46,896 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-examples/standard_palindrome_ground.i [2020-10-12 09:59:46,969 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b34f424a4/3d7724a356874eb893f9563bea422a12/FLAG999a62f59 [2020-10-12 09:59:47,409 INFO L306 CDTParser]: Found 1 translation units. [2020-10-12 09:59:47,410 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/array-examples/standard_palindrome_ground.i [2020-10-12 09:59:47,415 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b34f424a4/3d7724a356874eb893f9563bea422a12/FLAG999a62f59 [2020-10-12 09:59:47,808 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b34f424a4/3d7724a356874eb893f9563bea422a12 [2020-10-12 09:59:47,819 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-12 09:59:47,821 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-12 09:59:47,822 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-12 09:59:47,822 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-12 09:59:47,825 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-12 09:59:47,826 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 09:59:47" (1/1) ... [2020-10-12 09:59:47,830 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@784ce183 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 09:59:47, skipping insertion in model container [2020-10-12 09:59:47,830 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 09:59:47" (1/1) ... [2020-10-12 09:59:47,838 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-12 09:59:47,862 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-12 09:59:48,046 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 09:59:48,051 INFO L203 MainTranslator]: Completed pre-run [2020-10-12 09:59:48,078 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 09:59:48,104 INFO L208 MainTranslator]: Completed translation [2020-10-12 09:59:48,104 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 09:59:48 WrapperNode [2020-10-12 09:59:48,104 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-12 09:59:48,105 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-12 09:59:48,106 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-12 09:59:48,106 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-12 09:59:48,212 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 09:59:48" (1/1) ... [2020-10-12 09:59:48,214 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 09:59:48" (1/1) ... [2020-10-12 09:59:48,224 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 09:59:48" (1/1) ... [2020-10-12 09:59:48,224 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 09:59:48" (1/1) ... [2020-10-12 09:59:48,242 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 09:59:48" (1/1) ... [2020-10-12 09:59:48,250 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 09:59:48" (1/1) ... [2020-10-12 09:59:48,256 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 09:59:48" (1/1) ... [2020-10-12 09:59:48,259 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-12 09:59:48,260 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-12 09:59:48,260 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-12 09:59:48,260 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-12 09:59:48,261 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 09:59:48" (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 [2020-10-12 09:59:48,343 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-12 09:59:48,343 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-12 09:59:48,343 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-10-12 09:59:48,343 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-12 09:59:48,344 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-12 09:59:48,345 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-10-12 09:59:48,345 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-12 09:59:48,345 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-12 09:59:48,346 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-12 09:59:48,346 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-12 09:59:48,346 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-12 09:59:48,346 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-12 09:59:48,346 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-12 09:59:48,347 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-12 09:59:48,583 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-12 09:59:48,583 INFO L295 CfgBuilder]: Removed 3 assume(true) statements. [2020-10-12 09:59:48,588 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 09:59:48 BoogieIcfgContainer [2020-10-12 09:59:48,589 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-12 09:59:48,591 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-12 09:59:48,591 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-12 09:59:48,595 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-12 09:59:48,595 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.10 09:59:47" (1/3) ... [2020-10-12 09:59:48,597 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70f4b9b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 09:59:48, skipping insertion in model container [2020-10-12 09:59:48,597 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 09:59:48" (2/3) ... [2020-10-12 09:59:48,597 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70f4b9b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 09:59:48, skipping insertion in model container [2020-10-12 09:59:48,598 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 09:59:48" (3/3) ... [2020-10-12 09:59:48,600 INFO L109 eAbstractionObserver]: Analyzing ICFG standard_palindrome_ground.i [2020-10-12 09:59:48,614 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-12 09:59:48,624 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-12 09:59:48,641 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-12 09:59:48,688 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-12 09:59:48,688 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-12 09:59:48,688 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-12 09:59:48,688 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-12 09:59:48,689 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-12 09:59:48,689 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-12 09:59:48,695 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-12 09:59:48,695 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-12 09:59:48,729 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states. [2020-10-12 09:59:48,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-12 09:59:48,736 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 09:59:48,737 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 09:59:48,737 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 09:59:48,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 09:59:48,743 INFO L82 PathProgramCache]: Analyzing trace with hash 1778002988, now seen corresponding path program 1 times [2020-10-12 09:59:48,751 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 09:59:48,751 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1598944484] [2020-10-12 09:59:48,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 09:59:48,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:59:48,896 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:59:48,940 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:59:49,077 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:59:49,080 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-12 09:59:49,080 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 09:59:49,081 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 197 [2020-10-12 09:59:49,085 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:59:49,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:59:49,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-12 09:59:49,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 09:59:49,087 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-10-12 09:59:49,145 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 09:59:49,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:59:49,152 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:59:49,159 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:59:49,159 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 09:59:49,160 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:59:49,160 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 09:59:49,160 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:59:49,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:59:49,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:59:49,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:59:49,162 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 09:59:49,170 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 09:59:49,171 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1598944484] [2020-10-12 09:59:49,173 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 09:59:49,173 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-12 09:59:49,174 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [98753377] [2020-10-12 09:59:49,180 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-12 09:59:49,180 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 09:59:49,194 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-12 09:59:49,195 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-12 09:59:49,197 INFO L87 Difference]: Start difference. First operand 27 states. Second operand 4 states. [2020-10-12 09:59:49,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 09:59:49,335 INFO L93 Difference]: Finished difference Result 50 states and 65 transitions. [2020-10-12 09:59:49,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-12 09:59:49,337 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 15 [2020-10-12 09:59:49,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 09:59:49,346 INFO L225 Difference]: With dead ends: 50 [2020-10-12 09:59:49,347 INFO L226 Difference]: Without dead ends: 26 [2020-10-12 09:59:49,351 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-12 09:59:49,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2020-10-12 09:59:49,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 24. [2020-10-12 09:59:49,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2020-10-12 09:59:49,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 26 transitions. [2020-10-12 09:59:49,391 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 26 transitions. Word has length 15 [2020-10-12 09:59:49,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 09:59:49,391 INFO L479 AbstractCegarLoop]: Abstraction has 24 states and 26 transitions. [2020-10-12 09:59:49,392 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-12 09:59:49,392 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 26 transitions. [2020-10-12 09:59:49,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-12 09:59:49,393 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 09:59:49,393 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 09:59:49,393 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-12 09:59:49,394 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 09:59:49,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 09:59:49,394 INFO L82 PathProgramCache]: Analyzing trace with hash 1323409058, now seen corresponding path program 1 times [2020-10-12 09:59:49,395 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 09:59:49,395 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1909732531] [2020-10-12 09:59:49,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 09:59:49,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:59:49,420 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:59:49,464 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:59:49,734 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:59:50,241 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:59:50,242 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-12 09:59:50,242 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 09:59:50,243 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 829 [2020-10-12 09:59:50,243 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:59:50,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-12 09:59:50,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-12 09:59:50,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 09:59:50,244 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 09:59:50,390 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 09:59:50,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:59:50,394 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:59:50,397 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:59:50,398 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 09:59:50,402 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:59:50,402 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 09:59:50,403 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:59:50,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:59:50,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:59:50,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:59:50,404 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 09:59:50,414 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-12 09:59:50,414 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1909732531] [2020-10-12 09:59:50,415 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 09:59:50,415 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-10-12 09:59:50,416 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [191119446] [2020-10-12 09:59:50,419 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-12 09:59:50,420 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 09:59:50,420 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-12 09:59:50,421 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2020-10-12 09:59:50,427 INFO L87 Difference]: Start difference. First operand 24 states and 26 transitions. Second operand 9 states. [2020-10-12 09:59:50,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 09:59:50,673 INFO L93 Difference]: Finished difference Result 36 states and 38 transitions. [2020-10-12 09:59:50,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-12 09:59:50,674 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 19 [2020-10-12 09:59:50,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 09:59:50,675 INFO L225 Difference]: With dead ends: 36 [2020-10-12 09:59:50,675 INFO L226 Difference]: Without dead ends: 34 [2020-10-12 09:59:50,677 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=166, Unknown=0, NotChecked=0, Total=210 [2020-10-12 09:59:50,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2020-10-12 09:59:50,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 30. [2020-10-12 09:59:50,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2020-10-12 09:59:50,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 32 transitions. [2020-10-12 09:59:50,686 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 32 transitions. Word has length 19 [2020-10-12 09:59:50,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 09:59:50,687 INFO L479 AbstractCegarLoop]: Abstraction has 30 states and 32 transitions. [2020-10-12 09:59:50,687 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-12 09:59:50,687 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 32 transitions. [2020-10-12 09:59:50,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-10-12 09:59:50,688 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 09:59:50,688 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 09:59:50,689 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-12 09:59:50,689 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 09:59:50,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 09:59:50,689 INFO L82 PathProgramCache]: Analyzing trace with hash -96694823, now seen corresponding path program 1 times [2020-10-12 09:59:50,690 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 09:59:50,690 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [995071322] [2020-10-12 09:59:50,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 09:59:50,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:59:50,702 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:59:50,713 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:59:50,826 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:59:50,826 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-12 09:59:50,826 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 09:59:50,827 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 126 [2020-10-12 09:59:50,827 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:59:50,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 09:59:50,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-12 09:59:50,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-12 09:59:50,828 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 09:59:50,856 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 09:59:50,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:59:50,858 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:59:50,860 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:59:50,860 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 09:59:50,861 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:59:50,861 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 09:59:50,861 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:59:50,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:59:50,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:59:50,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:59:50,862 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 09:59:50,864 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-12 09:59:50,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:59:50,866 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:59:50,868 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:59:50,868 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:59:50,869 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:59:50,869 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 09:59:50,869 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:59:50,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:59:50,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:59:50,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:59:50,870 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 09:59:50,874 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-12 09:59:50,874 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [995071322] [2020-10-12 09:59:50,875 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 09:59:50,875 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-12 09:59:50,875 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2028066922] [2020-10-12 09:59:50,876 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-12 09:59:50,876 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 09:59:50,876 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-12 09:59:50,877 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-12 09:59:50,877 INFO L87 Difference]: Start difference. First operand 30 states and 32 transitions. Second operand 5 states. [2020-10-12 09:59:50,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 09:59:50,954 INFO L93 Difference]: Finished difference Result 57 states and 62 transitions. [2020-10-12 09:59:50,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-12 09:59:50,954 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 27 [2020-10-12 09:59:50,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 09:59:50,958 INFO L225 Difference]: With dead ends: 57 [2020-10-12 09:59:50,958 INFO L226 Difference]: Without dead ends: 36 [2020-10-12 09:59:50,959 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-12 09:59:50,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2020-10-12 09:59:50,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 34. [2020-10-12 09:59:50,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2020-10-12 09:59:50,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 36 transitions. [2020-10-12 09:59:50,968 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 36 transitions. Word has length 27 [2020-10-12 09:59:50,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 09:59:50,968 INFO L479 AbstractCegarLoop]: Abstraction has 34 states and 36 transitions. [2020-10-12 09:59:50,968 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-12 09:59:50,969 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 36 transitions. [2020-10-12 09:59:50,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-10-12 09:59:50,970 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 09:59:50,970 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 09:59:50,970 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-12 09:59:50,971 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 09:59:50,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 09:59:50,971 INFO L82 PathProgramCache]: Analyzing trace with hash 60600405, now seen corresponding path program 2 times [2020-10-12 09:59:50,971 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 09:59:50,972 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [280721442] [2020-10-12 09:59:50,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 09:59:50,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:59:50,990 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:59:51,004 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:59:51,166 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:59:51,776 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:59:51,777 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-12 09:59:51,777 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 09:59:51,777 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 791 [2020-10-12 09:59:51,778 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:59:51,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-12 09:59:51,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-10-12 09:59:51,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-12 09:59:51,779 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 09:59:51,927 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 09:59:51,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:59:51,930 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:59:51,931 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:59:51,931 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 09:59:51,932 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:59:51,932 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 09:59:51,932 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:59:51,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:59:51,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:59:51,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:59:51,933 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:59:51,935 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-12 09:59:51,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:59:51,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:59:51,941 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:59:51,942 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:59:51,942 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:59:51,942 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 09:59:51,942 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:59:51,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:59:51,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:59:51,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:59:51,943 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:59:51,948 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-12 09:59:51,948 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [280721442] [2020-10-12 09:59:51,949 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 09:59:51,949 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-10-12 09:59:51,949 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [989792265] [2020-10-12 09:59:51,950 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-12 09:59:51,950 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 09:59:51,950 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-12 09:59:51,951 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2020-10-12 09:59:51,951 INFO L87 Difference]: Start difference. First operand 34 states and 36 transitions. Second operand 11 states. [2020-10-12 09:59:52,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 09:59:52,298 INFO L93 Difference]: Finished difference Result 48 states and 50 transitions. [2020-10-12 09:59:52,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-12 09:59:52,299 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 31 [2020-10-12 09:59:52,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 09:59:52,300 INFO L225 Difference]: With dead ends: 48 [2020-10-12 09:59:52,300 INFO L226 Difference]: Without dead ends: 46 [2020-10-12 09:59:52,301 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=52, Invalid=254, Unknown=0, NotChecked=0, Total=306 [2020-10-12 09:59:52,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2020-10-12 09:59:52,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 42. [2020-10-12 09:59:52,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2020-10-12 09:59:52,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 44 transitions. [2020-10-12 09:59:52,310 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 44 transitions. Word has length 31 [2020-10-12 09:59:52,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 09:59:52,310 INFO L479 AbstractCegarLoop]: Abstraction has 42 states and 44 transitions. [2020-10-12 09:59:52,310 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-12 09:59:52,310 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 44 transitions. [2020-10-12 09:59:52,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2020-10-12 09:59:52,312 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 09:59:52,312 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 09:59:52,312 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-12 09:59:52,312 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 09:59:52,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 09:59:52,313 INFO L82 PathProgramCache]: Analyzing trace with hash -80724852, now seen corresponding path program 3 times [2020-10-12 09:59:52,313 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 09:59:52,313 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1533318079] [2020-10-12 09:59:52,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 09:59:52,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:59:52,328 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:59:52,340 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:59:52,658 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:59:52,658 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-12 09:59:52,658 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 09:59:52,659 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 334 [2020-10-12 09:59:52,659 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:59:52,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 09:59:52,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-10-12 09:59:52,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:59:52,660 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 09:59:52,710 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 09:59:52,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:59:52,713 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:59:52,715 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:59:52,715 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 09:59:52,716 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:59:52,716 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 09:59:52,716 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:59:52,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:59:52,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:59:52,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:59:52,718 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 09:59:52,725 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-12 09:59:52,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:59:52,727 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:59:52,732 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:59:52,732 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:59:52,732 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:59:52,733 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 09:59:52,733 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:59:52,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:59:52,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:59:52,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:59:52,734 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 09:59:52,736 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-12 09:59:52,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:59:52,739 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:59:52,740 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:59:52,740 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:59:52,741 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:59:52,741 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:59:52,741 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:59:52,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:59:52,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:59:52,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:59:52,742 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:59:52,747 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2020-10-12 09:59:52,748 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1533318079] [2020-10-12 09:59:52,748 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 09:59:52,749 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-12 09:59:52,749 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1633605334] [2020-10-12 09:59:52,750 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-12 09:59:52,750 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 09:59:52,750 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-12 09:59:52,751 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-12 09:59:52,751 INFO L87 Difference]: Start difference. First operand 42 states and 44 transitions. Second operand 6 states. [2020-10-12 09:59:52,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 09:59:52,848 INFO L93 Difference]: Finished difference Result 79 states and 84 transitions. [2020-10-12 09:59:52,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-12 09:59:52,850 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 39 [2020-10-12 09:59:52,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 09:59:52,852 INFO L225 Difference]: With dead ends: 79 [2020-10-12 09:59:52,854 INFO L226 Difference]: Without dead ends: 48 [2020-10-12 09:59:52,855 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-12 09:59:52,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2020-10-12 09:59:52,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 46. [2020-10-12 09:59:52,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2020-10-12 09:59:52,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 48 transitions. [2020-10-12 09:59:52,869 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 48 transitions. Word has length 39 [2020-10-12 09:59:52,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 09:59:52,870 INFO L479 AbstractCegarLoop]: Abstraction has 46 states and 48 transitions. [2020-10-12 09:59:52,870 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-12 09:59:52,870 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 48 transitions. [2020-10-12 09:59:52,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2020-10-12 09:59:52,874 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 09:59:52,874 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 09:59:52,874 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-12 09:59:52,874 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 09:59:52,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 09:59:52,875 INFO L82 PathProgramCache]: Analyzing trace with hash 1049720072, now seen corresponding path program 4 times [2020-10-12 09:59:52,875 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 09:59:52,875 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1368657584] [2020-10-12 09:59:52,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 09:59:52,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:59:52,898 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:59:52,914 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:59:53,255 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:59:54,280 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:59:54,280 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-10-12 09:59:54,280 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 09:59:54,281 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1388 [2020-10-12 09:59:54,281 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:59:54,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-12 09:59:54,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-10-12 09:59:54,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-12 09:59:54,282 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 09:59:54,541 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 09:59:54,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:59:54,543 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:59:54,546 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:59:54,546 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 09:59:54,547 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:59:54,547 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 09:59:54,548 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:59:54,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:59:54,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:59:54,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:59:54,549 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 09:59:54,551 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-12 09:59:54,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:59:54,554 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:59:54,560 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:59:54,560 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:59:54,561 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:59:54,561 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 09:59:54,561 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:59:54,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:59:54,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:59:54,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:59:54,563 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 09:59:54,565 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-12 09:59:54,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:59:54,568 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:59:54,573 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:59:54,573 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:59:54,574 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:59:54,574 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 09:59:54,574 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:59:54,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:59:54,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:59:54,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:59:54,576 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 09:59:54,590 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 4 proven. 17 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2020-10-12 09:59:54,590 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1368657584] [2020-10-12 09:59:54,592 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 09:59:54,592 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-12 09:59:54,592 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1700790046] [2020-10-12 09:59:54,593 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-12 09:59:54,594 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 09:59:54,594 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-12 09:59:54,595 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2020-10-12 09:59:54,595 INFO L87 Difference]: Start difference. First operand 46 states and 48 transitions. Second operand 13 states. [2020-10-12 09:59:55,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 09:59:55,291 INFO L93 Difference]: Finished difference Result 60 states and 62 transitions. [2020-10-12 09:59:55,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-12 09:59:55,293 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 43 [2020-10-12 09:59:55,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 09:59:55,295 INFO L225 Difference]: With dead ends: 60 [2020-10-12 09:59:55,298 INFO L226 Difference]: Without dead ends: 58 [2020-10-12 09:59:55,299 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=60, Invalid=360, Unknown=0, NotChecked=0, Total=420 [2020-10-12 09:59:55,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2020-10-12 09:59:55,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 54. [2020-10-12 09:59:55,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2020-10-12 09:59:55,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 56 transitions. [2020-10-12 09:59:55,318 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 56 transitions. Word has length 43 [2020-10-12 09:59:55,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 09:59:55,320 INFO L479 AbstractCegarLoop]: Abstraction has 54 states and 56 transitions. [2020-10-12 09:59:55,320 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-12 09:59:55,320 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 56 transitions. [2020-10-12 09:59:55,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-10-12 09:59:55,325 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 09:59:55,325 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 09:59:55,326 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-12 09:59:55,326 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 09:59:55,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 09:59:55,327 INFO L82 PathProgramCache]: Analyzing trace with hash 318414399, now seen corresponding path program 5 times [2020-10-12 09:59:55,327 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 09:59:55,328 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [754476022] [2020-10-12 09:59:55,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 09:59:55,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:59:55,368 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:59:55,393 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:59:56,156 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:59:56,156 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-12 09:59:56,157 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 09:59:56,157 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 808 [2020-10-12 09:59:56,157 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:59:56,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 09:59:56,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-10-12 09:59:56,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 09:59:56,159 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 09:59:56,230 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 09:59:56,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:59:56,232 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:59:56,235 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:59:56,235 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 09:59:56,237 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:59:56,237 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 09:59:56,238 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:59:56,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:59:56,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:59:56,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:59:56,239 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 09:59:56,241 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-12 09:59:56,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:59:56,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:59:56,246 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:59:56,247 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:59:56,247 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:59:56,247 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 09:59:56,247 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:59:56,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:59:56,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:59:56,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:59:56,248 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:59:56,249 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-12 09:59:56,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:59:56,251 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:59:56,252 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:59:56,252 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:59:56,252 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:59:56,252 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:59:56,253 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:59:56,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:59:56,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:59:56,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:59:56,253 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:59:56,257 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-12 09:59:56,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:59:56,258 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:59:56,260 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:59:56,260 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:59:56,260 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:59:56,260 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:59:56,261 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:59:56,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:59:56,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:59:56,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:59:56,262 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 09:59:56,266 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 6 proven. 9 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2020-10-12 09:59:56,267 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [754476022] [2020-10-12 09:59:56,267 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 09:59:56,267 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-12 09:59:56,268 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [300678222] [2020-10-12 09:59:56,269 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 09:59:56,269 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 09:59:56,269 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 09:59:56,269 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-12 09:59:56,269 INFO L87 Difference]: Start difference. First operand 54 states and 56 transitions. Second operand 7 states. [2020-10-12 09:59:56,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 09:59:56,381 INFO L93 Difference]: Finished difference Result 101 states and 106 transitions. [2020-10-12 09:59:56,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-12 09:59:56,382 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 51 [2020-10-12 09:59:56,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 09:59:56,383 INFO L225 Difference]: With dead ends: 101 [2020-10-12 09:59:56,383 INFO L226 Difference]: Without dead ends: 60 [2020-10-12 09:59:56,384 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-12 09:59:56,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2020-10-12 09:59:56,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 58. [2020-10-12 09:59:56,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2020-10-12 09:59:56,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 60 transitions. [2020-10-12 09:59:56,399 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 60 transitions. Word has length 51 [2020-10-12 09:59:56,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 09:59:56,399 INFO L479 AbstractCegarLoop]: Abstraction has 58 states and 60 transitions. [2020-10-12 09:59:56,399 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 09:59:56,400 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 60 transitions. [2020-10-12 09:59:56,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2020-10-12 09:59:56,403 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 09:59:56,403 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 09:59:56,404 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-12 09:59:56,404 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 09:59:56,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 09:59:56,405 INFO L82 PathProgramCache]: Analyzing trace with hash -1711280965, now seen corresponding path program 6 times [2020-10-12 09:59:56,405 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 09:59:56,405 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1541482263] [2020-10-12 09:59:56,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 09:59:56,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:59:56,426 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:59:56,442 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:59:56,988 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:59:58,685 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:59:58,686 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 69 [2020-10-12 09:59:58,686 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 09:59:58,686 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2263 [2020-10-12 09:59:58,686 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:59:58,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-12 09:59:58,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-12 09:59:58,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-12 09:59:58,687 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:59:58,903 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 09:59:58,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:59:58,905 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:59:58,906 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:59:58,907 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 09:59:58,907 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:59:58,907 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:59:58,908 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:59:58,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:59:58,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:59:58,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:59:58,908 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:59:58,910 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-12 09:59:58,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:59:58,913 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:59:58,917 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:59:58,917 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:59:58,918 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:59:58,918 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 09:59:58,918 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:59:58,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:59:58,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:59:58,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:59:58,919 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:59:58,920 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-12 09:59:58,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:59:58,923 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:59:58,925 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:59:58,925 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:59:58,926 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:59:58,926 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 09:59:58,926 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:59:58,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:59:58,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:59:58,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:59:58,927 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:59:58,928 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-12 09:59:58,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:59:58,932 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:59:58,934 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:59:58,935 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:59:58,935 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:59:58,935 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 09:59:58,935 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:59:58,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:59:58,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:59:58,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:59:58,936 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:59:58,946 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 6 proven. 34 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2020-10-12 09:59:58,947 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1541482263] [2020-10-12 09:59:58,947 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 09:59:58,947 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-10-12 09:59:58,947 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [589343773] [2020-10-12 09:59:58,949 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-12 09:59:58,949 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 09:59:58,949 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-12 09:59:58,950 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=183, Unknown=0, NotChecked=0, Total=210 [2020-10-12 09:59:58,950 INFO L87 Difference]: Start difference. First operand 58 states and 60 transitions. Second operand 15 states. [2020-10-12 09:59:59,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 09:59:59,676 INFO L93 Difference]: Finished difference Result 72 states and 74 transitions. [2020-10-12 09:59:59,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-12 09:59:59,677 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 55 [2020-10-12 09:59:59,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 09:59:59,679 INFO L225 Difference]: With dead ends: 72 [2020-10-12 09:59:59,679 INFO L226 Difference]: Without dead ends: 70 [2020-10-12 09:59:59,684 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=63, Invalid=443, Unknown=0, NotChecked=0, Total=506 [2020-10-12 09:59:59,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2020-10-12 09:59:59,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 66. [2020-10-12 09:59:59,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2020-10-12 09:59:59,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 68 transitions. [2020-10-12 09:59:59,707 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 68 transitions. Word has length 55 [2020-10-12 09:59:59,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 09:59:59,708 INFO L479 AbstractCegarLoop]: Abstraction has 66 states and 68 transitions. [2020-10-12 09:59:59,708 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-12 09:59:59,709 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 68 transitions. [2020-10-12 09:59:59,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-10-12 09:59:59,710 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 09:59:59,711 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 09:59:59,711 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-12 09:59:59,712 INFO L427 AbstractCegarLoop]: === Iteration 9 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 09:59:59,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 09:59:59,712 INFO L82 PathProgramCache]: Analyzing trace with hash -1680100622, now seen corresponding path program 7 times [2020-10-12 09:59:59,713 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 09:59:59,713 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [772830350] [2020-10-12 09:59:59,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 09:59:59,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:59:59,737 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:59:59,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:00:00,833 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:00:00,833 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 79 [2020-10-12 10:00:00,833 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 10:00:00,834 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1103 [2020-10-12 10:00:00,834 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:00:00,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 10:00:00,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-12 10:00:00,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 10:00:00,835 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:00:00,890 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 10:00:00,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:00:00,892 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:00:00,893 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:00:00,894 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:00:00,894 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:00:00,894 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:00:00,894 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:00:00,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:00:00,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:00:00,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:00:00,895 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:00:00,896 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-12 10:00:00,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:00:00,897 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:00:00,898 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:00:00,899 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:00:00,899 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:00:00,899 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:00:00,899 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:00:00,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:00:00,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:00:00,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:00:00,900 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:00:00,901 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-12 10:00:00,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:00:00,903 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:00:00,904 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:00:00,904 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:00:00,905 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:00:00,905 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:00:00,905 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:00:00,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:00:00,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:00:00,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:00:00,906 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:00:00,907 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-12 10:00:00,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:00:00,909 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:00:00,910 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:00:00,910 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:00:00,910 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:00:00,910 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:00:00,911 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:00:00,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:00:00,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:00:00,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:00:00,911 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:00:00,913 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-12 10:00:00,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:00:00,914 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:00:00,916 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:00:00,916 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:00:00,916 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:00:00,916 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:00:00,916 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:00:00,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:00:00,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:00:00,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:00:00,917 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:00:00,921 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 8 proven. 16 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2020-10-12 10:00:00,922 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [772830350] [2020-10-12 10:00:00,922 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 10:00:00,922 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-12 10:00:00,923 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [23228664] [2020-10-12 10:00:00,923 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-12 10:00:00,923 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 10:00:00,924 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-12 10:00:00,924 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-10-12 10:00:00,924 INFO L87 Difference]: Start difference. First operand 66 states and 68 transitions. Second operand 8 states. [2020-10-12 10:00:01,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 10:00:01,011 INFO L93 Difference]: Finished difference Result 123 states and 128 transitions. [2020-10-12 10:00:01,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-12 10:00:01,011 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 63 [2020-10-12 10:00:01,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 10:00:01,012 INFO L225 Difference]: With dead ends: 123 [2020-10-12 10:00:01,012 INFO L226 Difference]: Without dead ends: 72 [2020-10-12 10:00:01,013 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-10-12 10:00:01,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2020-10-12 10:00:01,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 70. [2020-10-12 10:00:01,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 70 states. [2020-10-12 10:00:01,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 72 transitions. [2020-10-12 10:00:01,036 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 72 transitions. Word has length 63 [2020-10-12 10:00:01,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 10:00:01,037 INFO L479 AbstractCegarLoop]: Abstraction has 70 states and 72 transitions. [2020-10-12 10:00:01,037 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-12 10:00:01,037 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 72 transitions. [2020-10-12 10:00:01,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-10-12 10:00:01,038 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 10:00:01,038 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 10:00:01,038 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-12 10:00:01,038 INFO L427 AbstractCegarLoop]: === Iteration 10 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 10:00:01,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 10:00:01,039 INFO L82 PathProgramCache]: Analyzing trace with hash 1789400942, now seen corresponding path program 8 times [2020-10-12 10:00:01,039 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 10:00:01,039 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [448015481] [2020-10-12 10:00:01,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 10:00:01,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:00:01,055 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:00:01,069 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:00:01,915 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:00:04,764 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:00:04,765 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-10-12 10:00:04,765 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 10:00:04,765 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3715 [2020-10-12 10:00:04,766 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:00:04,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-12 10:00:04,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-10-12 10:00:04,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-10-12 10:00:04,766 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:00:05,019 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 10:00:05,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:00:05,021 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:00:05,023 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:00:05,023 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:00:05,023 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:00:05,023 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:00:05,024 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:00:05,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:00:05,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:00:05,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:00:05,024 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:00:05,026 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-12 10:00:05,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:00:05,028 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:00:05,031 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:00:05,031 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:00:05,032 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:00:05,032 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 10:00:05,032 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:00:05,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:00:05,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:00:05,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 10:00:05,033 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:00:05,034 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-12 10:00:05,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:00:05,037 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:00:05,039 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:00:05,039 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:00:05,039 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:00:05,039 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 10:00:05,040 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:00:05,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:00:05,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:00:05,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 10:00:05,040 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:00:05,042 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-10-12 10:00:05,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:00:05,044 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:00:05,046 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:00:05,047 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:00:05,047 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:00:05,047 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 10:00:05,047 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:00:05,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:00:05,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:00:05,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 10:00:05,048 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:00:05,050 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-12 10:00:05,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:00:05,052 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:00:05,054 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:00:05,055 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:00:05,055 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:00:05,055 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 10:00:05,055 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:00:05,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:00:05,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:00:05,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 10:00:05,056 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:00:05,069 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 8 proven. 57 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2020-10-12 10:00:05,069 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [448015481] [2020-10-12 10:00:05,070 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 10:00:05,070 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2020-10-12 10:00:05,070 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [173675056] [2020-10-12 10:00:05,071 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-10-12 10:00:05,071 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 10:00:05,071 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-10-12 10:00:05,071 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2020-10-12 10:00:05,071 INFO L87 Difference]: Start difference. First operand 70 states and 72 transitions. Second operand 17 states. [2020-10-12 10:00:05,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 10:00:05,830 INFO L93 Difference]: Finished difference Result 84 states and 86 transitions. [2020-10-12 10:00:05,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-12 10:00:05,831 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 67 [2020-10-12 10:00:05,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 10:00:05,832 INFO L225 Difference]: With dead ends: 84 [2020-10-12 10:00:05,832 INFO L226 Difference]: Without dead ends: 82 [2020-10-12 10:00:05,833 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=71, Invalid=579, Unknown=0, NotChecked=0, Total=650 [2020-10-12 10:00:05,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2020-10-12 10:00:05,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 78. [2020-10-12 10:00:05,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 78 states. [2020-10-12 10:00:05,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 80 transitions. [2020-10-12 10:00:05,841 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 80 transitions. Word has length 67 [2020-10-12 10:00:05,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 10:00:05,842 INFO L479 AbstractCegarLoop]: Abstraction has 78 states and 80 transitions. [2020-10-12 10:00:05,842 INFO L480 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-10-12 10:00:05,842 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 80 transitions. [2020-10-12 10:00:05,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2020-10-12 10:00:05,843 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 10:00:05,843 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 10:00:05,843 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-12 10:00:05,844 INFO L427 AbstractCegarLoop]: === Iteration 11 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 10:00:05,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 10:00:05,844 INFO L82 PathProgramCache]: Analyzing trace with hash 714308261, now seen corresponding path program 9 times [2020-10-12 10:00:05,844 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 10:00:05,845 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [316929815] [2020-10-12 10:00:05,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 10:00:05,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:00:05,861 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:00:05,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:00:07,266 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:00:07,267 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 93 [2020-10-12 10:00:07,267 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 10:00:07,267 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1411 [2020-10-12 10:00:07,267 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:00:07,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-12 10:00:07,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-10-12 10:00:07,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-12 10:00:07,268 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:00:07,319 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 10:00:07,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:00:07,321 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:00:07,322 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:00:07,322 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:00:07,323 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:00:07,323 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:00:07,323 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:00:07,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:00:07,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:00:07,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:00:07,324 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:00:07,325 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-12 10:00:07,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:00:07,326 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:00:07,327 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:00:07,328 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:00:07,328 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:00:07,328 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:00:07,328 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:00:07,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:00:07,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:00:07,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:00:07,329 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:00:07,330 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-12 10:00:07,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:00:07,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:00:07,333 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:00:07,333 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:00:07,333 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:00:07,333 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:00:07,333 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:00:07,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:00:07,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:00:07,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:00:07,334 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:00:07,335 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-10-12 10:00:07,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:00:07,337 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:00:07,338 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:00:07,338 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:00:07,338 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:00:07,338 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:00:07,339 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:00:07,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:00:07,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:00:07,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:00:07,340 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:00:07,341 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-12 10:00:07,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:00:07,342 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:00:07,343 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:00:07,343 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:00:07,344 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:00:07,344 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:00:07,344 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:00:07,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:00:07,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:00:07,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:00:07,345 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:00:07,346 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-12 10:00:07,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:00:07,347 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:00:07,349 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:00:07,350 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:00:07,350 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:00:07,350 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 10:00:07,350 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:00:07,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:00:07,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:00:07,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:00:07,351 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:00:07,356 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 10 proven. 25 refuted. 0 times theorem prover too weak. 115 trivial. 0 not checked. [2020-10-12 10:00:07,357 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [316929815] [2020-10-12 10:00:07,357 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 10:00:07,357 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-10-12 10:00:07,358 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [459328523] [2020-10-12 10:00:07,358 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-12 10:00:07,358 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 10:00:07,358 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-12 10:00:07,359 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2020-10-12 10:00:07,359 INFO L87 Difference]: Start difference. First operand 78 states and 80 transitions. Second operand 9 states. [2020-10-12 10:00:07,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 10:00:07,463 INFO L93 Difference]: Finished difference Result 145 states and 150 transitions. [2020-10-12 10:00:07,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-12 10:00:07,463 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 75 [2020-10-12 10:00:07,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 10:00:07,464 INFO L225 Difference]: With dead ends: 145 [2020-10-12 10:00:07,465 INFO L226 Difference]: Without dead ends: 84 [2020-10-12 10:00:07,466 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2020-10-12 10:00:07,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2020-10-12 10:00:07,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 82. [2020-10-12 10:00:07,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 82 states. [2020-10-12 10:00:07,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 84 transitions. [2020-10-12 10:00:07,474 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 84 transitions. Word has length 75 [2020-10-12 10:00:07,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 10:00:07,474 INFO L479 AbstractCegarLoop]: Abstraction has 82 states and 84 transitions. [2020-10-12 10:00:07,474 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-12 10:00:07,474 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 84 transitions. [2020-10-12 10:00:07,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2020-10-12 10:00:07,475 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 10:00:07,475 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 10:00:07,476 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-12 10:00:07,476 INFO L427 AbstractCegarLoop]: === Iteration 12 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 10:00:07,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 10:00:07,476 INFO L82 PathProgramCache]: Analyzing trace with hash -1077283551, now seen corresponding path program 10 times [2020-10-12 10:00:07,476 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 10:00:07,477 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [148933338] [2020-10-12 10:00:07,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 10:00:07,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:00:07,492 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:00:07,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:00:08,567 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:00:12,211 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:00:12,211 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-10-12 10:00:12,211 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 10:00:12,212 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4723 [2020-10-12 10:00:12,212 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:00:12,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-12 10:00:12,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 25 [2020-10-12 10:00:12,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-12 10:00:12,213 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:00:12,493 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 10:00:12,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:00:12,495 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:00:12,496 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:00:12,497 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:00:12,497 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:00:12,497 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:00:12,497 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:00:12,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:00:12,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:00:12,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:00:12,498 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:00:12,499 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-12 10:00:12,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:00:12,501 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:00:12,503 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:00:12,503 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:00:12,504 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:00:12,504 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 10:00:12,504 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:00:12,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:00:12,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:00:12,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 10:00:12,505 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:00:12,506 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-12 10:00:12,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:00:12,508 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:00:12,510 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:00:12,511 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:00:12,511 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:00:12,511 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 10:00:12,511 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:00:12,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:00:12,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:00:12,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 10:00:12,512 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:00:12,514 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-12 10:00:12,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:00:12,517 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:00:12,519 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:00:12,519 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:00:12,519 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:00:12,520 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 10:00:12,520 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:00:12,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:00:12,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:00:12,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 10:00:12,521 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:00:12,522 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-12 10:00:12,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:00:12,524 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:00:12,527 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:00:12,527 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:00:12,527 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:00:12,527 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 10:00:12,528 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:00:12,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:00:12,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:00:12,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 10:00:12,528 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:00:12,530 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-10-12 10:00:12,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:00:12,531 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:00:12,533 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:00:12,533 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:00:12,533 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:00:12,534 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 10:00:12,534 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:00:12,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:00:12,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:00:12,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 10:00:12,535 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:00:12,565 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 10 proven. 86 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2020-10-12 10:00:12,566 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [148933338] [2020-10-12 10:00:12,566 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 10:00:12,566 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2020-10-12 10:00:12,567 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1709493926] [2020-10-12 10:00:12,567 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-10-12 10:00:12,568 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 10:00:12,568 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-10-12 10:00:12,568 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=307, Unknown=0, NotChecked=0, Total=342 [2020-10-12 10:00:12,568 INFO L87 Difference]: Start difference. First operand 82 states and 84 transitions. Second operand 19 states. [2020-10-12 10:00:13,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 10:00:13,620 INFO L93 Difference]: Finished difference Result 96 states and 98 transitions. [2020-10-12 10:00:13,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-10-12 10:00:13,621 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 79 [2020-10-12 10:00:13,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 10:00:13,622 INFO L225 Difference]: With dead ends: 96 [2020-10-12 10:00:13,622 INFO L226 Difference]: Without dead ends: 94 [2020-10-12 10:00:13,623 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=79, Invalid=733, Unknown=0, NotChecked=0, Total=812 [2020-10-12 10:00:13,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2020-10-12 10:00:13,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 90. [2020-10-12 10:00:13,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 90 states. [2020-10-12 10:00:13,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 92 transitions. [2020-10-12 10:00:13,631 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 92 transitions. Word has length 79 [2020-10-12 10:00:13,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 10:00:13,631 INFO L479 AbstractCegarLoop]: Abstraction has 90 states and 92 transitions. [2020-10-12 10:00:13,632 INFO L480 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-10-12 10:00:13,632 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 92 transitions. [2020-10-12 10:00:13,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2020-10-12 10:00:13,632 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 10:00:13,633 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 10:00:13,633 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-12 10:00:13,633 INFO L427 AbstractCegarLoop]: === Iteration 13 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 10:00:13,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 10:00:13,633 INFO L82 PathProgramCache]: Analyzing trace with hash -1906182824, now seen corresponding path program 11 times [2020-10-12 10:00:13,634 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 10:00:13,634 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [854227851] [2020-10-12 10:00:13,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 10:00:13,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:00:13,647 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:00:13,661 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:00:15,797 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:00:15,798 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 107 [2020-10-12 10:00:15,798 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 10:00:15,798 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2154 [2020-10-12 10:00:15,798 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:00:15,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-12 10:00:15,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 25 [2020-10-12 10:00:15,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-12 10:00:15,799 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:00:15,860 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 10:00:15,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:00:15,862 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:00:15,863 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:00:15,863 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:00:15,863 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:00:15,863 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:00:15,864 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:00:15,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:00:15,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:00:15,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:00:15,864 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:00:15,865 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-12 10:00:15,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:00:15,867 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:00:15,868 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:00:15,868 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:00:15,869 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:00:15,869 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:00:15,869 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:00:15,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:00:15,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:00:15,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:00:15,870 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:00:15,871 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-12 10:00:15,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:00:15,872 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:00:15,873 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:00:15,873 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:00:15,873 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:00:15,873 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:00:15,874 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:00:15,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:00:15,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:00:15,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:00:15,874 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:00:15,875 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-12 10:00:15,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:00:15,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:00:15,877 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:00:15,878 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:00:15,878 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:00:15,878 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 10:00:15,878 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:00:15,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:00:15,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:00:15,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:00:15,879 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:00:15,880 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-12 10:00:15,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:00:15,881 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:00:15,882 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:00:15,882 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:00:15,882 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:00:15,882 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:00:15,882 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:00:15,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:00:15,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:00:15,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:00:15,883 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:00:15,884 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-10-12 10:00:15,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:00:15,885 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:00:15,886 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:00:15,886 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:00:15,887 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:00:15,887 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:00:15,887 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:00:15,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:00:15,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:00:15,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:00:15,888 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:00:15,889 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-12 10:00:15,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:00:15,890 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:00:15,891 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:00:15,891 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:00:15,891 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:00:15,891 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:00:15,891 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:00:15,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:00:15,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:00:15,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:00:15,892 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:00:15,898 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 12 proven. 36 refuted. 0 times theorem prover too weak. 168 trivial. 0 not checked. [2020-10-12 10:00:15,898 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [854227851] [2020-10-12 10:00:15,898 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 10:00:15,898 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-10-12 10:00:15,899 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1823925687] [2020-10-12 10:00:15,899 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-12 10:00:15,899 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 10:00:15,900 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-12 10:00:15,900 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2020-10-12 10:00:15,900 INFO L87 Difference]: Start difference. First operand 90 states and 92 transitions. Second operand 10 states. [2020-10-12 10:00:16,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 10:00:16,008 INFO L93 Difference]: Finished difference Result 167 states and 172 transitions. [2020-10-12 10:00:16,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-12 10:00:16,008 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 87 [2020-10-12 10:00:16,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 10:00:16,010 INFO L225 Difference]: With dead ends: 167 [2020-10-12 10:00:16,010 INFO L226 Difference]: Without dead ends: 96 [2020-10-12 10:00:16,011 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2020-10-12 10:00:16,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2020-10-12 10:00:16,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 94. [2020-10-12 10:00:16,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 94 states. [2020-10-12 10:00:16,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 96 transitions. [2020-10-12 10:00:16,018 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 96 transitions. Word has length 87 [2020-10-12 10:00:16,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 10:00:16,019 INFO L479 AbstractCegarLoop]: Abstraction has 94 states and 96 transitions. [2020-10-12 10:00:16,019 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-12 10:00:16,019 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 96 transitions. [2020-10-12 10:00:16,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2020-10-12 10:00:16,020 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 10:00:16,020 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 10:00:16,020 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-12 10:00:16,020 INFO L427 AbstractCegarLoop]: === Iteration 14 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 10:00:16,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 10:00:16,020 INFO L82 PathProgramCache]: Analyzing trace with hash 1663403476, now seen corresponding path program 12 times [2020-10-12 10:00:16,021 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 10:00:16,021 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [763414128] [2020-10-12 10:00:16,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 10:00:16,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:00:16,033 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:00:16,047 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:00:17,099 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:00:20,502 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:00:20,503 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 10:00:20,503 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 10:00:20,503 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4472 [2020-10-12 10:00:20,503 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:00:20,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-12 10:00:20,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 27 [2020-10-12 10:00:20,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 83 [2020-10-12 10:00:20,504 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:00:20,943 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 10:00:20,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:00:20,944 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:00:20,946 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:00:20,947 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:00:20,947 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:00:20,947 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:00:20,948 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:00:20,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:00:20,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:00:20,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:00:20,949 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 10:00:20,953 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-12 10:00:20,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:00:20,956 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:00:20,959 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:00:20,960 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:00:20,960 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:00:20,960 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 10:00:20,960 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:00:20,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:00:20,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:00:20,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 10:00:20,962 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 10:00:20,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-10-12 10:00:20,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:00:20,968 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:00:20,971 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:00:20,971 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:00:20,971 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:00:20,972 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 10:00:20,972 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:00:20,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:00:20,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:00:20,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 10:00:20,973 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 10:00:20,975 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-12 10:00:20,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:00:20,978 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:00:20,980 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:00:20,980 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:00:20,981 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:00:20,981 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 10:00:20,981 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:00:20,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:00:20,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:00:20,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 10:00:20,982 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 10:00:20,984 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-12 10:00:20,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:00:20,986 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:00:20,988 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:00:20,989 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:00:20,989 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:00:20,989 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 10:00:20,990 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:00:20,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:00:20,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:00:20,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 10:00:20,990 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:00:20,991 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-12 10:00:20,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:00:20,993 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:00:20,995 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:00:20,995 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:00:20,995 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:00:20,995 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 10:00:20,996 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:00:20,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:00:20,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:00:20,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 10:00:20,997 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 10:00:20,999 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-10-12 10:00:21,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:00:21,003 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:00:21,005 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:00:21,006 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:00:21,006 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:00:21,006 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 10:00:21,007 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:00:21,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:00:21,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:00:21,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 10:00:21,010 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-12 10:00:21,042 INFO L134 CoverageAnalysis]: Checked inductivity of 242 backedges. 12 proven. 121 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2020-10-12 10:00:21,042 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [763414128] [2020-10-12 10:00:21,043 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 10:00:21,043 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21] total 21 [2020-10-12 10:00:21,043 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1704779821] [2020-10-12 10:00:21,044 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2020-10-12 10:00:21,045 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 10:00:21,046 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2020-10-12 10:00:21,046 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=381, Unknown=0, NotChecked=0, Total=420 [2020-10-12 10:00:21,046 INFO L87 Difference]: Start difference. First operand 94 states and 96 transitions. Second operand 21 states. [2020-10-12 10:00:22,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 10:00:22,285 INFO L93 Difference]: Finished difference Result 108 states and 110 transitions. [2020-10-12 10:00:22,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-10-12 10:00:22,291 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 91 [2020-10-12 10:00:22,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 10:00:22,293 INFO L225 Difference]: With dead ends: 108 [2020-10-12 10:00:22,293 INFO L226 Difference]: Without dead ends: 106 [2020-10-12 10:00:22,294 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=87, Invalid=905, Unknown=0, NotChecked=0, Total=992 [2020-10-12 10:00:22,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2020-10-12 10:00:22,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 102. [2020-10-12 10:00:22,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 102 states. [2020-10-12 10:00:22,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 104 transitions. [2020-10-12 10:00:22,303 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 104 transitions. Word has length 91 [2020-10-12 10:00:22,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 10:00:22,304 INFO L479 AbstractCegarLoop]: Abstraction has 102 states and 104 transitions. [2020-10-12 10:00:22,304 INFO L480 AbstractCegarLoop]: Interpolant automaton has 21 states. [2020-10-12 10:00:22,304 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 104 transitions. [2020-10-12 10:00:22,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2020-10-12 10:00:22,305 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 10:00:22,305 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 10:00:22,305 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-12 10:00:22,305 INFO L427 AbstractCegarLoop]: === Iteration 15 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 10:00:22,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 10:00:22,306 INFO L82 PathProgramCache]: Analyzing trace with hash -788061429, now seen corresponding path program 13 times [2020-10-12 10:00:22,306 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 10:00:22,306 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1322058111] [2020-10-12 10:00:22,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 10:00:22,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:00:22,318 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:00:22,334 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:00:24,097 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:00:24,097 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-10-12 10:00:24,097 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 10:00:24,097 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1782 [2020-10-12 10:00:24,098 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:00:24,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-12 10:00:24,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 27 [2020-10-12 10:00:24,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-12 10:00:24,098 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:00:24,172 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 10:00:24,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:00:24,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:00:24,175 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:00:24,175 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:00:24,176 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:00:24,176 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:00:24,176 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:00:24,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:00:24,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:00:24,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:00:24,178 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 10:00:24,179 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-12 10:00:24,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:00:24,182 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:00:24,183 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:00:24,183 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:00:24,183 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:00:24,184 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 10:00:24,184 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:00:24,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:00:24,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:00:24,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:00:24,185 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 10:00:24,186 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-10-12 10:00:24,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:00:24,188 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:00:24,189 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:00:24,189 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:00:24,189 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:00:24,189 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:00:24,190 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:00:24,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:00:24,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:00:24,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:00:24,191 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 10:00:24,192 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-12 10:00:24,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:00:24,194 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:00:24,195 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:00:24,195 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:00:24,196 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:00:24,196 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:00:24,196 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:00:24,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:00:24,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:00:24,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:00:24,198 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 10:00:24,199 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-12 10:00:24,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:00:24,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:00:24,201 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:00:24,202 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:00:24,202 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:00:24,202 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:00:24,202 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:00:24,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:00:24,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:00:24,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:00:24,204 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 10:00:24,205 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-12 10:00:24,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:00:24,206 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:00:24,207 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:00:24,208 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:00:24,208 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:00:24,208 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:00:24,209 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:00:24,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:00:24,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:00:24,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:00:24,210 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 10:00:24,211 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-10-12 10:00:24,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:00:24,212 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:00:24,213 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:00:24,214 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:00:24,214 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:00:24,214 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:00:24,215 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:00:24,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:00:24,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:00:24,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:00:24,216 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 10:00:24,217 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-12 10:00:24,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:00:24,222 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:00:24,223 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:00:24,224 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:00:24,224 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:00:24,224 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:00:24,225 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:00:24,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:00:24,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:00:24,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:00:24,226 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 10:00:24,241 INFO L134 CoverageAnalysis]: Checked inductivity of 294 backedges. 14 proven. 49 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2020-10-12 10:00:24,242 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1322058111] [2020-10-12 10:00:24,242 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 10:00:24,243 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-10-12 10:00:24,243 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1407339143] [2020-10-12 10:00:24,244 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-12 10:00:24,244 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 10:00:24,244 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-12 10:00:24,245 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2020-10-12 10:00:24,245 INFO L87 Difference]: Start difference. First operand 102 states and 104 transitions. Second operand 11 states. [2020-10-12 10:00:24,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 10:00:24,433 INFO L93 Difference]: Finished difference Result 189 states and 194 transitions. [2020-10-12 10:00:24,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-12 10:00:24,434 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 99 [2020-10-12 10:00:24,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 10:00:24,435 INFO L225 Difference]: With dead ends: 189 [2020-10-12 10:00:24,436 INFO L226 Difference]: Without dead ends: 108 [2020-10-12 10:00:24,437 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2020-10-12 10:00:24,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2020-10-12 10:00:24,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 106. [2020-10-12 10:00:24,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 106 states. [2020-10-12 10:00:24,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 108 transitions. [2020-10-12 10:00:24,464 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 108 transitions. Word has length 99 [2020-10-12 10:00:24,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 10:00:24,466 INFO L479 AbstractCegarLoop]: Abstraction has 106 states and 108 transitions. [2020-10-12 10:00:24,466 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-12 10:00:24,466 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 108 transitions. [2020-10-12 10:00:24,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2020-10-12 10:00:24,468 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 10:00:24,476 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 10:00:24,476 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-12 10:00:24,477 INFO L427 AbstractCegarLoop]: === Iteration 16 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 10:00:24,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 10:00:24,477 INFO L82 PathProgramCache]: Analyzing trace with hash -654653049, now seen corresponding path program 14 times [2020-10-12 10:00:24,478 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 10:00:24,478 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [300833839] [2020-10-12 10:00:24,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 10:00:24,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:00:24,498 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:00:24,522 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:00:26,210 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:00:29,497 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:00:29,497 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 125 [2020-10-12 10:00:29,497 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 10:00:29,497 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-10-12 10:00:29,497 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:00:29,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-12 10:00:29,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-10-12 10:00:29,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-10-12 10:00:29,498 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:00:29,956 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 10:00:29,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:00:29,958 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:00:29,959 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:00:29,960 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:00:29,960 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:00:29,960 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 10:00:29,960 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:00:29,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:00:29,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:00:29,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:00:29,961 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:00:29,962 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-12 10:00:29,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:00:29,964 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:00:29,966 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:00:29,966 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:00:29,966 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:00:29,966 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 10:00:29,966 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:00:29,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:00:29,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:00:29,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 10:00:29,967 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:00:29,968 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-12 10:00:29,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:00:29,971 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:00:29,972 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:00:29,973 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:00:29,973 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:00:29,973 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 10:00:29,973 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:00:29,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:00:29,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:00:29,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 10:00:29,974 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:00:29,975 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-12 10:00:29,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:00:29,978 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:00:29,979 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:00:29,980 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:00:29,980 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:00:29,980 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 10:00:29,980 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:00:29,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:00:29,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:00:29,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 10:00:29,981 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:00:29,983 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-10-12 10:00:29,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:00:29,984 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:00:29,986 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:00:29,986 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:00:29,987 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:00:29,987 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 10:00:29,987 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:00:29,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:00:29,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:00:29,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 10:00:29,988 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:00:29,989 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-12 10:00:29,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:00:29,992 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:00:29,993 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:00:29,994 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:00:29,994 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:00:29,994 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 10:00:29,994 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:00:29,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:00:29,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:00:29,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 10:00:29,995 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:00:29,996 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-10-12 10:00:29,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:00:29,998 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:00:30,000 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:00:30,000 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:00:30,000 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:00:30,001 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 10:00:30,001 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:00:30,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:00:30,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:00:30,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 10:00:30,001 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:00:30,003 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-12 10:00:30,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:00:30,005 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:00:30,006 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:00:30,007 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:00:30,007 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:00:30,007 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 10:00:30,007 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:00:30,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:00:30,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:00:30,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 10:00:30,008 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:00:30,038 INFO L134 CoverageAnalysis]: Checked inductivity of 324 backedges. 14 proven. 162 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2020-10-12 10:00:30,038 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [300833839] [2020-10-12 10:00:30,041 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 10:00:30,041 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23] total 23 [2020-10-12 10:00:30,041 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2108146715] [2020-10-12 10:00:30,042 INFO L459 AbstractCegarLoop]: Interpolant automaton has 23 states [2020-10-12 10:00:30,042 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 10:00:30,042 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2020-10-12 10:00:30,043 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=463, Unknown=0, NotChecked=0, Total=506 [2020-10-12 10:00:30,043 INFO L87 Difference]: Start difference. First operand 106 states and 108 transitions. Second operand 23 states. [2020-10-12 10:00:31,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 10:00:31,548 INFO L93 Difference]: Finished difference Result 120 states and 122 transitions. [2020-10-12 10:00:31,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-10-12 10:00:31,549 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 103 [2020-10-12 10:00:31,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 10:00:31,551 INFO L225 Difference]: With dead ends: 120 [2020-10-12 10:00:31,552 INFO L226 Difference]: Without dead ends: 118 [2020-10-12 10:00:31,553 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=95, Invalid=1095, Unknown=0, NotChecked=0, Total=1190 [2020-10-12 10:00:31,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2020-10-12 10:00:31,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 114. [2020-10-12 10:00:31,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 114 states. [2020-10-12 10:00:31,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 116 transitions. [2020-10-12 10:00:31,562 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 116 transitions. Word has length 103 [2020-10-12 10:00:31,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 10:00:31,563 INFO L479 AbstractCegarLoop]: Abstraction has 114 states and 116 transitions. [2020-10-12 10:00:31,563 INFO L480 AbstractCegarLoop]: Interpolant automaton has 23 states. [2020-10-12 10:00:31,563 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 116 transitions. [2020-10-12 10:00:31,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2020-10-12 10:00:31,564 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 10:00:31,564 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 10:00:31,565 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-12 10:00:31,565 INFO L427 AbstractCegarLoop]: === Iteration 17 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 10:00:31,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 10:00:31,565 INFO L82 PathProgramCache]: Analyzing trace with hash 918750142, now seen corresponding path program 15 times [2020-10-12 10:00:31,565 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 10:00:31,566 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1596742794] [2020-10-12 10:00:31,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 10:00:31,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:00:31,580 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:00:31,591 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:00:34,162 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:00:34,162 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 135 [2020-10-12 10:00:34,162 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 10:00:34,162 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2584 [2020-10-12 10:00:34,162 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:00:34,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-12 10:00:34,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-12 10:00:34,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-12 10:00:34,163 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:00:34,252 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 10:00:34,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:00:34,254 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:00:34,255 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:00:34,255 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:00:34,256 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:00:34,256 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:00:34,256 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:00:34,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:00:34,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:00:34,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:00:34,256 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:00:34,257 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-12 10:00:34,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:00:34,258 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:00:34,259 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:00:34,259 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:00:34,259 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:00:34,259 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 10:00:34,260 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:00:34,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:00:34,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:00:34,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:00:34,260 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:00:34,261 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-12 10:00:34,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:00:34,262 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:00:34,263 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:00:34,263 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:00:34,263 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:00:34,263 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:00:34,264 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:00:34,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:00:34,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:00:34,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:00:34,264 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:00:34,265 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-12 10:00:34,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:00:34,266 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:00:34,267 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:00:34,267 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:00:34,267 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:00:34,268 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 10:00:34,268 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:00:34,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:00:34,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:00:34,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:00:34,269 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:00:34,270 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-10-12 10:00:34,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:00:34,270 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:00:34,271 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:00:34,271 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:00:34,271 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:00:34,271 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 10:00:34,271 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:00:34,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:00:34,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:00:34,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:00:34,272 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:00:34,272 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-12 10:00:34,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:00:34,273 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:00:34,274 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:00:34,274 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:00:34,274 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:00:34,274 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 10:00:34,274 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:00:34,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:00:34,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:00:34,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:00:34,274 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:00:34,275 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-10-12 10:00:34,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:00:34,276 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:00:34,276 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:00:34,277 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:00:34,277 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:00:34,277 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 10:00:34,277 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:00:34,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:00:34,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:00:34,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:00:34,277 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:00:34,278 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-12 10:00:34,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:00:34,279 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:00:34,280 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:00:34,280 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:00:34,280 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:00:34,280 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 10:00:34,280 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:00:34,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:00:34,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:00:34,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:00:34,281 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:00:34,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-10-12 10:00:34,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:00:34,282 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:00:34,283 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:00:34,283 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:00:34,283 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:00:34,283 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 10:00:34,283 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:00:34,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:00:34,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:00:34,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:00:34,284 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:00:34,292 INFO L134 CoverageAnalysis]: Checked inductivity of 384 backedges. 16 proven. 64 refuted. 0 times theorem prover too weak. 304 trivial. 0 not checked. [2020-10-12 10:00:34,292 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1596742794] [2020-10-12 10:00:34,292 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 10:00:34,293 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-10-12 10:00:34,293 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [976009886] [2020-10-12 10:00:34,293 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-12 10:00:34,293 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 10:00:34,294 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-12 10:00:34,294 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2020-10-12 10:00:34,294 INFO L87 Difference]: Start difference. First operand 114 states and 116 transitions. Second operand 12 states. [2020-10-12 10:00:34,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 10:00:34,442 INFO L93 Difference]: Finished difference Result 211 states and 216 transitions. [2020-10-12 10:00:34,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-12 10:00:34,442 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 111 [2020-10-12 10:00:34,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 10:00:34,444 INFO L225 Difference]: With dead ends: 211 [2020-10-12 10:00:34,444 INFO L226 Difference]: Without dead ends: 120 [2020-10-12 10:00:34,446 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2020-10-12 10:00:34,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2020-10-12 10:00:34,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 118. [2020-10-12 10:00:34,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 118 states. [2020-10-12 10:00:34,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 120 transitions. [2020-10-12 10:00:34,465 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 120 transitions. Word has length 111 [2020-10-12 10:00:34,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 10:00:34,465 INFO L479 AbstractCegarLoop]: Abstraction has 118 states and 120 transitions. [2020-10-12 10:00:34,465 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-12 10:00:34,465 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 120 transitions. [2020-10-12 10:00:34,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2020-10-12 10:00:34,467 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 10:00:34,467 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 10:00:34,468 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-12 10:00:34,468 INFO L427 AbstractCegarLoop]: === Iteration 18 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 10:00:34,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 10:00:34,469 INFO L82 PathProgramCache]: Analyzing trace with hash 1611251770, now seen corresponding path program 16 times [2020-10-12 10:00:34,470 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 10:00:34,470 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1961601405] [2020-10-12 10:00:34,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 10:00:34,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:00:34,485 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:00:34,503 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:00:36,831 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:00:39,487 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:00:39,487 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 139 [2020-10-12 10:00:39,487 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 10:00:39,487 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-10-12 10:00:39,487 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:00:39,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-10-12 10:00:39,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 31 [2020-10-12 10:00:39,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 107 [2020-10-12 10:00:39,488 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:00:40,031 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 10:00:40,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:00:40,034 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:00:40,035 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:00:40,035 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:00:40,035 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:00:40,035 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:00:40,035 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:00:40,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:00:40,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:00:40,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:00:40,036 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:00:40,037 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-10-12 10:00:40,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:00:40,039 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:00:40,041 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:00:40,041 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:00:40,041 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:00:40,041 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 10:00:40,041 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:00:40,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:00:40,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:00:40,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 10:00:40,042 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:00:40,043 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-12 10:00:40,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:00:40,045 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:00:40,047 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:00:40,047 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:00:40,047 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:00:40,047 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 10:00:40,047 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:00:40,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:00:40,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:00:40,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 10:00:40,048 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:00:40,049 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-12 10:00:40,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:00:40,051 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:00:40,053 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:00:40,053 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:00:40,053 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:00:40,053 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 10:00:40,053 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:00:40,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:00:40,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:00:40,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 10:00:40,054 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:00:40,055 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-12 10:00:40,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:00:40,057 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:00:40,059 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:00:40,059 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:00:40,060 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:00:40,060 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 10:00:40,060 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:00:40,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:00:40,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:00:40,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 10:00:40,061 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:00:40,062 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-10-12 10:00:40,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:00:40,064 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:00:40,065 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:00:40,066 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:00:40,066 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:00:40,066 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 10:00:40,066 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:00:40,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:00:40,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:00:40,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 10:00:40,067 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:00:40,068 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-12 10:00:40,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:00:40,070 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:00:40,072 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:00:40,072 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:00:40,072 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:00:40,072 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 10:00:40,073 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:00:40,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:00:40,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:00:40,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 10:00:40,073 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:00:40,075 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-12 10:00:40,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:00:40,077 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:00:40,078 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:00:40,079 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:00:40,079 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:00:40,079 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 10:00:40,079 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:00:40,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:00:40,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:00:40,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 10:00:40,080 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:00:40,081 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2020-10-12 10:00:40,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:00:40,083 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:00:40,085 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:00:40,085 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:00:40,085 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:00:40,085 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 10:00:40,085 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:00:40,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:00:40,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:00:40,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 10:00:40,086 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:00:40,120 INFO L134 CoverageAnalysis]: Checked inductivity of 418 backedges. 16 proven. 209 refuted. 0 times theorem prover too weak. 193 trivial. 0 not checked. [2020-10-12 10:00:40,120 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1961601405] [2020-10-12 10:00:40,120 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 10:00:40,121 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25] total 25 [2020-10-12 10:00:40,121 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2111383793] [2020-10-12 10:00:40,121 INFO L459 AbstractCegarLoop]: Interpolant automaton has 25 states [2020-10-12 10:00:40,122 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 10:00:40,122 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2020-10-12 10:00:40,122 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=553, Unknown=0, NotChecked=0, Total=600 [2020-10-12 10:00:40,122 INFO L87 Difference]: Start difference. First operand 118 states and 120 transitions. Second operand 25 states. [2020-10-12 10:00:41,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 10:00:41,920 INFO L93 Difference]: Finished difference Result 132 states and 134 transitions. [2020-10-12 10:00:41,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-10-12 10:00:41,921 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 115 [2020-10-12 10:00:41,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 10:00:41,923 INFO L225 Difference]: With dead ends: 132 [2020-10-12 10:00:41,923 INFO L226 Difference]: Without dead ends: 130 [2020-10-12 10:00:41,924 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=103, Invalid=1303, Unknown=0, NotChecked=0, Total=1406 [2020-10-12 10:00:41,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2020-10-12 10:00:41,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 126. [2020-10-12 10:00:41,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 126 states. [2020-10-12 10:00:41,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 128 transitions. [2020-10-12 10:00:41,936 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 128 transitions. Word has length 115 [2020-10-12 10:00:41,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 10:00:41,937 INFO L479 AbstractCegarLoop]: Abstraction has 126 states and 128 transitions. [2020-10-12 10:00:41,937 INFO L480 AbstractCegarLoop]: Interpolant automaton has 25 states. [2020-10-12 10:00:41,937 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 128 transitions. [2020-10-12 10:00:41,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2020-10-12 10:00:41,939 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 10:00:41,939 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 10:00:41,939 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-12 10:00:41,939 INFO L427 AbstractCegarLoop]: === Iteration 19 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 10:00:41,939 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 10:00:41,940 INFO L82 PathProgramCache]: Analyzing trace with hash 1045796721, now seen corresponding path program 17 times [2020-10-12 10:00:41,940 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 10:00:41,940 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [548349662] [2020-10-12 10:00:41,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 10:00:41,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:00:41,956 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:00:41,978 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:00:45,714 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:00:45,714 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 149 [2020-10-12 10:00:45,714 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 10:00:45,714 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3763 [2020-10-12 10:00:45,715 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:00:45,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-12 10:00:45,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 31 [2020-10-12 10:00:45,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-12 10:00:45,715 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:00:45,817 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 10:00:45,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:00:45,819 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:00:45,820 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:00:45,820 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:00:45,820 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:00:45,820 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:00:45,820 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:00:45,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:00:45,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:00:45,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:00:45,821 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:00:45,821 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-10-12 10:00:45,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:00:45,822 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:00:45,823 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:00:45,823 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:00:45,823 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:00:45,823 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 10:00:45,823 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:00:45,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:00:45,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:00:45,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:00:45,824 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:00:45,825 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-12 10:00:45,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:00:45,826 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:00:45,827 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:00:45,827 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:00:45,827 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:00:45,827 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 10:00:45,827 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:00:45,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:00:45,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:00:45,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:00:45,828 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:00:45,828 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-12 10:00:45,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:00:45,829 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:00:45,830 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:00:45,830 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:00:45,830 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:00:45,830 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 10:00:45,830 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:00:45,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:00:45,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:00:45,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:00:45,831 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:00:45,831 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-12 10:00:45,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:00:45,832 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:00:45,833 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:00:45,833 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:00:45,833 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:00:45,833 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 10:00:45,833 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:00:45,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:00:45,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:00:45,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:00:45,834 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:00:45,834 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-10-12 10:00:45,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:00:45,835 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:00:45,836 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:00:45,836 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:00:45,836 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:00:45,837 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 10:00:45,837 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:00:45,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:00:45,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:00:45,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:00:45,837 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:00:45,838 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-12 10:00:45,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:00:45,839 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:00:45,840 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:00:45,840 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:00:45,840 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:00:45,840 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 10:00:45,840 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:00:45,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:00:45,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:00:45,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:00:45,840 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:00:45,841 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-12 10:00:45,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:00:45,842 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:00:45,842 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:00:45,842 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:00:45,843 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:00:45,843 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 10:00:45,843 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:00:45,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:00:45,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:00:45,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:00:45,843 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:00:45,844 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2020-10-12 10:00:45,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:00:45,845 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:00:45,845 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:00:45,845 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:00:45,845 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:00:45,846 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 10:00:45,846 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:00:45,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:00:45,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:00:45,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:00:45,846 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:00:45,847 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2020-10-12 10:00:45,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:00:45,848 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:00:45,848 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:00:45,849 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:00:45,849 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:00:45,849 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:00:45,849 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:00:45,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:00:45,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:00:45,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:00:45,850 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:00:45,858 INFO L134 CoverageAnalysis]: Checked inductivity of 486 backedges. 18 proven. 81 refuted. 0 times theorem prover too weak. 387 trivial. 0 not checked. [2020-10-12 10:00:45,858 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [548349662] [2020-10-12 10:00:45,858 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 10:00:45,858 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-12 10:00:45,858 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1540332087] [2020-10-12 10:00:45,859 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-12 10:00:45,859 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 10:00:45,859 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-12 10:00:45,859 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=88, Unknown=0, NotChecked=0, Total=156 [2020-10-12 10:00:45,860 INFO L87 Difference]: Start difference. First operand 126 states and 128 transitions. Second operand 13 states. [2020-10-12 10:00:46,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 10:00:46,031 INFO L93 Difference]: Finished difference Result 233 states and 238 transitions. [2020-10-12 10:00:46,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-12 10:00:46,031 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 123 [2020-10-12 10:00:46,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 10:00:46,033 INFO L225 Difference]: With dead ends: 233 [2020-10-12 10:00:46,033 INFO L226 Difference]: Without dead ends: 132 [2020-10-12 10:00:46,033 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=68, Invalid=88, Unknown=0, NotChecked=0, Total=156 [2020-10-12 10:00:46,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2020-10-12 10:00:46,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 130. [2020-10-12 10:00:46,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 130 states. [2020-10-12 10:00:46,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 132 transitions. [2020-10-12 10:00:46,045 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 132 transitions. Word has length 123 [2020-10-12 10:00:46,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 10:00:46,045 INFO L479 AbstractCegarLoop]: Abstraction has 130 states and 132 transitions. [2020-10-12 10:00:46,045 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-12 10:00:46,045 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 132 transitions. [2020-10-12 10:00:46,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2020-10-12 10:00:46,047 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 10:00:46,047 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 10:00:46,047 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-12 10:00:46,047 INFO L427 AbstractCegarLoop]: === Iteration 20 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 10:00:46,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 10:00:46,047 INFO L82 PathProgramCache]: Analyzing trace with hash -242062867, now seen corresponding path program 18 times [2020-10-12 10:00:46,048 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 10:00:46,048 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1454025319] [2020-10-12 10:00:46,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 10:00:46,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:00:46,069 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:00:46,092 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:00:48,855 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:00:51,064 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:00:51,064 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 153 [2020-10-12 10:00:51,064 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 10:00:51,064 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-10-12 10:00:51,065 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:00:51,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-10-12 10:00:51,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 33 [2020-10-12 10:00:51,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 119 [2020-10-12 10:00:51,065 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:00:51,677 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 10:00:51,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:00:51,679 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:00:51,680 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:00:51,681 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:00:51,681 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:00:51,681 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:00:51,681 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:00:51,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:00:51,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:00:51,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:00:51,681 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:00:51,682 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-12 10:00:51,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:00:51,683 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:00:51,685 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:00:51,685 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:00:51,685 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:00:51,685 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:00:51,685 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:00:51,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:00:51,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:00:51,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 10:00:51,686 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:00:51,686 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-12 10:00:51,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:00:51,688 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:00:51,689 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:00:51,689 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:00:51,689 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:00:51,689 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:00:51,689 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:00:51,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:00:51,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:00:51,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 10:00:51,690 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:00:51,691 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-10-12 10:00:51,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:00:51,693 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:00:51,694 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:00:51,695 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:00:51,695 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:00:51,695 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:00:51,695 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:00:51,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:00:51,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:00:51,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 10:00:51,695 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:00:51,696 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-12 10:00:51,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:00:51,698 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:00:51,699 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:00:51,699 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:00:51,699 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:00:51,699 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:00:51,699 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:00:51,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:00:51,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:00:51,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 10:00:51,700 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:00:51,701 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-10-12 10:00:51,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:00:51,702 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:00:51,704 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:00:51,704 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:00:51,704 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:00:51,704 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 10:00:51,705 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:00:51,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:00:51,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:00:51,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 10:00:51,705 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:00:51,706 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-12 10:00:51,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:00:51,708 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:00:51,710 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:00:51,710 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:00:51,710 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:00:51,710 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 10:00:51,711 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:00:51,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:00:51,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:00:51,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 10:00:51,711 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:00:51,712 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-10-12 10:00:51,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:00:51,714 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:00:51,716 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:00:51,716 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:00:51,716 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:00:51,716 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 10:00:51,717 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:00:51,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:00:51,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:00:51,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 10:00:51,717 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:00:51,718 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2020-10-12 10:00:51,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:00:51,720 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:00:51,722 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:00:51,722 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:00:51,722 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:00:51,722 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 10:00:51,723 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:00:51,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:00:51,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:00:51,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 10:00:51,723 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:00:51,724 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-10-12 10:00:51,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:00:51,727 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:00:51,728 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:00:51,729 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:00:51,729 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:00:51,729 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:00:51,729 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:00:51,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:00:51,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:00:51,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 10:00:51,730 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:00:51,756 INFO L134 CoverageAnalysis]: Checked inductivity of 524 backedges. 18 proven. 262 refuted. 0 times theorem prover too weak. 244 trivial. 0 not checked. [2020-10-12 10:00:51,757 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1454025319] [2020-10-12 10:00:51,757 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 10:00:51,757 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27] total 27 [2020-10-12 10:00:51,757 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1587372830] [2020-10-12 10:00:51,758 INFO L459 AbstractCegarLoop]: Interpolant automaton has 27 states [2020-10-12 10:00:51,758 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 10:00:51,758 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2020-10-12 10:00:51,759 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=651, Unknown=0, NotChecked=0, Total=702 [2020-10-12 10:00:51,759 INFO L87 Difference]: Start difference. First operand 130 states and 132 transitions. Second operand 27 states. [2020-10-12 10:00:53,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 10:00:53,818 INFO L93 Difference]: Finished difference Result 144 states and 146 transitions. [2020-10-12 10:00:53,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2020-10-12 10:00:53,819 INFO L78 Accepts]: Start accepts. Automaton has 27 states. Word has length 127 [2020-10-12 10:00:53,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 10:00:53,821 INFO L225 Difference]: With dead ends: 144 [2020-10-12 10:00:53,821 INFO L226 Difference]: Without dead ends: 142 [2020-10-12 10:00:53,822 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=111, Invalid=1529, Unknown=0, NotChecked=0, Total=1640 [2020-10-12 10:00:53,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2020-10-12 10:00:53,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 138. [2020-10-12 10:00:53,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 138 states. [2020-10-12 10:00:53,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 140 transitions. [2020-10-12 10:00:53,834 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 140 transitions. Word has length 127 [2020-10-12 10:00:53,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 10:00:53,835 INFO L479 AbstractCegarLoop]: Abstraction has 138 states and 140 transitions. [2020-10-12 10:00:53,835 INFO L480 AbstractCegarLoop]: Interpolant automaton has 27 states. [2020-10-12 10:00:53,835 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 140 transitions. [2020-10-12 10:00:53,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2020-10-12 10:00:53,836 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 10:00:53,836 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 10:00:53,837 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-10-12 10:00:53,837 INFO L427 AbstractCegarLoop]: === Iteration 21 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 10:00:53,837 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 10:00:53,837 INFO L82 PathProgramCache]: Analyzing trace with hash -1593909724, now seen corresponding path program 19 times [2020-10-12 10:00:53,837 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 10:00:53,837 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [247596069] [2020-10-12 10:00:53,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 10:00:53,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:00:53,858 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:00:53,873 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:00:58,865 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:00:58,865 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 163 [2020-10-12 10:00:58,865 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 10:00:58,865 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5014 [2020-10-12 10:00:58,865 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:00:58,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-12 10:00:58,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-12 10:00:58,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-12 10:00:58,866 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:00:58,985 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 10:00:58,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:00:58,987 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:00:58,988 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:00:58,988 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:00:58,989 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:00:58,989 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:00:58,989 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:00:58,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:00:58,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:00:58,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:00:58,989 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:00:58,990 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-12 10:00:58,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:00:58,991 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:00:58,991 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:00:58,991 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:00:58,991 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:00:58,992 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 10:00:58,992 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:00:58,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:00:58,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:00:58,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:00:58,992 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:00:58,993 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-12 10:00:58,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:00:58,993 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:00:58,994 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:00:58,994 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:00:58,994 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:00:58,994 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 10:00:58,994 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:00:58,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:00:58,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:00:58,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:00:58,995 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:00:58,995 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-10-12 10:00:58,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:00:58,996 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:00:58,997 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:00:58,997 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:00:58,997 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:00:58,997 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 10:00:58,997 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:00:58,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:00:58,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:00:58,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:00:58,998 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:00:58,998 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-12 10:00:58,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:00:58,999 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:00:59,000 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:00:59,000 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:00:59,000 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:00:59,000 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:00:59,000 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:00:59,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:00:59,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:00:59,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:00:59,001 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:00:59,002 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-10-12 10:00:59,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:00:59,002 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:00:59,003 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:00:59,003 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:00:59,003 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:00:59,003 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 10:00:59,003 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:00:59,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:00:59,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:00:59,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:00:59,004 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:00:59,004 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-12 10:00:59,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:00:59,005 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:00:59,005 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:00:59,005 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:00:59,006 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:00:59,006 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 10:00:59,006 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:00:59,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:00:59,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:00:59,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:00:59,006 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:00:59,007 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-10-12 10:00:59,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:00:59,007 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:00:59,008 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:00:59,008 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:00:59,008 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:00:59,008 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 10:00:59,008 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:00:59,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:00:59,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:00:59,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:00:59,009 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:00:59,010 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2020-10-12 10:00:59,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:00:59,011 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:00:59,011 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:00:59,011 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:00:59,012 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:00:59,012 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 10:00:59,012 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:00:59,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:00:59,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:00:59,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:00:59,013 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:00:59,013 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-10-12 10:00:59,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:00:59,015 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:00:59,015 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:00:59,015 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:00:59,015 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:00:59,015 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 10:00:59,016 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:00:59,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:00:59,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:00:59,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:00:59,016 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:00:59,017 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-10-12 10:00:59,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:00:59,017 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:00:59,018 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:00:59,018 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:00:59,018 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:00:59,018 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 10:00:59,018 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:00:59,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:00:59,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:00:59,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:00:59,019 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:00:59,026 INFO L134 CoverageAnalysis]: Checked inductivity of 600 backedges. 20 proven. 100 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2020-10-12 10:00:59,027 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [247596069] [2020-10-12 10:00:59,027 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 10:00:59,027 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-10-12 10:00:59,027 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1144965605] [2020-10-12 10:00:59,027 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-12 10:00:59,028 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 10:00:59,028 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-12 10:00:59,028 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=102, Unknown=0, NotChecked=0, Total=182 [2020-10-12 10:00:59,028 INFO L87 Difference]: Start difference. First operand 138 states and 140 transitions. Second operand 14 states. [2020-10-12 10:00:59,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 10:00:59,184 INFO L93 Difference]: Finished difference Result 255 states and 260 transitions. [2020-10-12 10:00:59,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-12 10:00:59,185 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 135 [2020-10-12 10:00:59,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 10:00:59,186 INFO L225 Difference]: With dead ends: 255 [2020-10-12 10:00:59,186 INFO L226 Difference]: Without dead ends: 144 [2020-10-12 10:00:59,187 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=80, Invalid=102, Unknown=0, NotChecked=0, Total=182 [2020-10-12 10:00:59,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2020-10-12 10:00:59,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 142. [2020-10-12 10:00:59,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 142 states. [2020-10-12 10:00:59,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 144 transitions. [2020-10-12 10:00:59,200 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 144 transitions. Word has length 135 [2020-10-12 10:00:59,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 10:00:59,200 INFO L479 AbstractCegarLoop]: Abstraction has 142 states and 144 transitions. [2020-10-12 10:00:59,200 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-12 10:00:59,200 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 144 transitions. [2020-10-12 10:00:59,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2020-10-12 10:00:59,202 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 10:00:59,202 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 10:00:59,202 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-10-12 10:00:59,202 INFO L427 AbstractCegarLoop]: === Iteration 22 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 10:00:59,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 10:00:59,202 INFO L82 PathProgramCache]: Analyzing trace with hash 1096074912, now seen corresponding path program 20 times [2020-10-12 10:00:59,203 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 10:00:59,203 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1049721630] [2020-10-12 10:00:59,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 10:00:59,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:00:59,220 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:00:59,231 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:01:03,084 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:01:04,228 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:01:04,228 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 167 [2020-10-12 10:01:04,228 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 10:01:04,228 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5013 [2020-10-12 10:01:04,228 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:01:04,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-10-12 10:01:04,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 35 [2020-10-12 10:01:04,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 131 [2020-10-12 10:01:04,229 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:01:04,916 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 10:01:04,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:01:04,919 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:01:04,920 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:01:04,920 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:01:04,920 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:01:04,920 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 10:01:04,920 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:01:04,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:01:04,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:01:04,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:01:04,921 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:01:04,921 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-12 10:01:04,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:01:04,923 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:01:04,924 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:01:04,924 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:01:04,924 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:01:04,924 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:01:04,924 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:01:04,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:01:04,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:01:04,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 10:01:04,925 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:01:04,926 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-12 10:01:04,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:01:04,927 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:01:04,928 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:01:04,928 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:01:04,928 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:01:04,928 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:01:04,928 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:01:04,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:01:04,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:01:04,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 10:01:04,929 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:01:04,929 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-12 10:01:04,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:01:04,930 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:01:04,931 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:01:04,932 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:01:04,932 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:01:04,932 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:01:04,932 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:01:04,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:01:04,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:01:04,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 10:01:04,932 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:01:04,933 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-10-12 10:01:04,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:01:04,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:01:04,935 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:01:04,935 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:01:04,935 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:01:04,935 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:01:04,935 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:01:04,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:01:04,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:01:04,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 10:01:04,936 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:01:04,936 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-12 10:01:04,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:01:04,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:01:04,939 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:01:04,939 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:01:04,939 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:01:04,940 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:01:04,940 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:01:04,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:01:04,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:01:04,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 10:01:04,940 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:01:04,942 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-12 10:01:04,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:01:04,943 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:01:04,945 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:01:04,945 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:01:04,945 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:01:04,945 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 10:01:04,945 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:01:04,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:01:04,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:01:04,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 10:01:04,946 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:01:04,947 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2020-10-12 10:01:04,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:01:04,949 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:01:04,950 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:01:04,950 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:01:04,950 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:01:04,950 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:01:04,951 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:01:04,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:01:04,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:01:04,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 10:01:04,951 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:01:04,952 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2020-10-12 10:01:04,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:01:04,953 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:01:04,954 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:01:04,954 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:01:04,954 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:01:04,954 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:01:04,955 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:01:04,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:01:04,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:01:04,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 10:01:04,955 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:01:04,956 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2020-10-12 10:01:04,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:01:04,957 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:01:04,958 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:01:04,958 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:01:04,958 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:01:04,958 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:01:04,958 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:01:04,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:01:04,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:01:04,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 10:01:04,959 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:01:04,959 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-10-12 10:01:04,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:01:04,961 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:01:04,962 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:01:04,962 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:01:04,962 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:01:04,963 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:01:04,963 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:01:04,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:01:04,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:01:04,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 10:01:04,963 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:01:04,995 INFO L134 CoverageAnalysis]: Checked inductivity of 642 backedges. 20 proven. 321 refuted. 0 times theorem prover too weak. 301 trivial. 0 not checked. [2020-10-12 10:01:04,995 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1049721630] [2020-10-12 10:01:04,995 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 10:01:04,995 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [29] total 29 [2020-10-12 10:01:04,996 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [836631946] [2020-10-12 10:01:04,996 INFO L459 AbstractCegarLoop]: Interpolant automaton has 29 states [2020-10-12 10:01:04,996 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 10:01:04,997 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2020-10-12 10:01:04,997 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=757, Unknown=0, NotChecked=0, Total=812 [2020-10-12 10:01:04,997 INFO L87 Difference]: Start difference. First operand 142 states and 144 transitions. Second operand 29 states. [2020-10-12 10:01:07,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 10:01:07,400 INFO L93 Difference]: Finished difference Result 156 states and 158 transitions. [2020-10-12 10:01:07,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2020-10-12 10:01:07,402 INFO L78 Accepts]: Start accepts. Automaton has 29 states. Word has length 139 [2020-10-12 10:01:07,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 10:01:07,404 INFO L225 Difference]: With dead ends: 156 [2020-10-12 10:01:07,404 INFO L226 Difference]: Without dead ends: 154 [2020-10-12 10:01:07,405 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 103 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=119, Invalid=1773, Unknown=0, NotChecked=0, Total=1892 [2020-10-12 10:01:07,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2020-10-12 10:01:07,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 150. [2020-10-12 10:01:07,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 150 states. [2020-10-12 10:01:07,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 152 transitions. [2020-10-12 10:01:07,418 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 152 transitions. Word has length 139 [2020-10-12 10:01:07,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 10:01:07,418 INFO L479 AbstractCegarLoop]: Abstraction has 150 states and 152 transitions. [2020-10-12 10:01:07,418 INFO L480 AbstractCegarLoop]: Interpolant automaton has 29 states. [2020-10-12 10:01:07,418 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 152 transitions. [2020-10-12 10:01:07,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2020-10-12 10:01:07,420 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 10:01:07,420 INFO L422 BasicCegarLoop]: trace histogram [12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 10:01:07,420 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-10-12 10:01:07,420 INFO L427 AbstractCegarLoop]: === Iteration 23 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 10:01:07,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 10:01:07,421 INFO L82 PathProgramCache]: Analyzing trace with hash 1384044503, now seen corresponding path program 21 times [2020-10-12 10:01:07,421 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 10:01:07,421 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [72989662] [2020-10-12 10:01:07,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 10:01:07,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:01:07,442 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:01:07,467 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:01:12,449 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:01:12,449 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 177 [2020-10-12 10:01:12,449 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 10:01:12,449 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5014 [2020-10-12 10:01:12,449 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:01:12,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-12 10:01:12,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-12 10:01:12,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-12 10:01:12,450 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:01:12,583 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 10:01:12,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:01:12,585 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:01:12,586 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:01:12,586 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:01:12,586 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:01:12,587 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:01:12,587 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:01:12,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:01:12,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:01:12,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:01:12,587 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:01:12,589 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-12 10:01:12,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:01:12,590 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:01:12,591 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:01:12,591 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:01:12,591 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:01:12,591 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:01:12,591 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:01:12,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:01:12,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:01:12,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:01:12,592 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:01:12,592 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-12 10:01:12,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:01:12,593 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:01:12,593 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:01:12,594 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:01:12,594 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:01:12,594 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 10:01:12,594 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:01:12,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:01:12,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:01:12,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:01:12,594 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:01:12,595 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-12 10:01:12,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:01:12,596 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:01:12,596 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:01:12,596 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:01:12,596 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:01:12,596 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 10:01:12,597 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:01:12,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:01:12,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:01:12,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:01:12,597 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:01:12,597 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-10-12 10:01:12,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:01:12,598 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:01:12,598 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:01:12,599 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:01:12,599 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:01:12,599 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 10:01:12,599 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:01:12,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:01:12,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:01:12,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:01:12,599 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:01:12,600 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-12 10:01:12,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:01:12,601 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:01:12,602 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:01:12,602 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:01:12,602 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:01:12,602 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 10:01:12,602 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:01:12,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:01:12,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:01:12,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:01:12,603 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:01:12,603 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-12 10:01:12,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:01:12,604 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:01:12,604 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:01:12,604 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:01:12,604 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:01:12,605 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 10:01:12,605 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:01:12,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:01:12,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:01:12,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:01:12,605 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:01:12,606 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2020-10-12 10:01:12,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:01:12,606 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:01:12,607 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:01:12,607 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:01:12,607 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:01:12,607 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 10:01:12,607 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:01:12,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:01:12,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:01:12,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:01:12,608 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:01:12,608 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2020-10-12 10:01:12,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:01:12,609 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:01:12,609 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:01:12,609 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:01:12,609 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:01:12,609 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 10:01:12,610 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:01:12,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:01:12,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:01:12,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:01:12,610 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:01:12,611 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2020-10-12 10:01:12,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:01:12,612 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:01:12,612 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:01:12,613 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:01:12,613 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:01:12,613 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 10:01:12,613 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:01:12,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:01:12,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:01:12,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:01:12,613 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:01:12,614 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-10-12 10:01:12,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:01:12,615 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:01:12,615 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:01:12,615 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:01:12,615 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:01:12,615 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 10:01:12,616 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:01:12,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:01:12,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:01:12,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:01:12,616 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:01:12,617 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-12 10:01:12,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:01:12,618 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:01:12,619 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:01:12,619 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:01:12,619 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:01:12,619 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:01:12,620 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:01:12,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:01:12,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:01:12,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:01:12,620 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:01:12,631 INFO L134 CoverageAnalysis]: Checked inductivity of 726 backedges. 22 proven. 121 refuted. 0 times theorem prover too weak. 583 trivial. 0 not checked. [2020-10-12 10:01:12,631 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [72989662] [2020-10-12 10:01:12,632 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 10:01:12,632 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-10-12 10:01:12,632 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [723001698] [2020-10-12 10:01:12,633 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-12 10:01:12,633 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 10:01:12,633 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-12 10:01:12,633 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=117, Unknown=0, NotChecked=0, Total=210 [2020-10-12 10:01:12,633 INFO L87 Difference]: Start difference. First operand 150 states and 152 transitions. Second operand 15 states. [2020-10-12 10:01:12,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 10:01:12,828 INFO L93 Difference]: Finished difference Result 277 states and 282 transitions. [2020-10-12 10:01:12,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-12 10:01:12,828 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 147 [2020-10-12 10:01:12,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 10:01:12,830 INFO L225 Difference]: With dead ends: 277 [2020-10-12 10:01:12,830 INFO L226 Difference]: Without dead ends: 156 [2020-10-12 10:01:12,832 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=93, Invalid=117, Unknown=0, NotChecked=0, Total=210 [2020-10-12 10:01:12,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states. [2020-10-12 10:01:12,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 154. [2020-10-12 10:01:12,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 154 states. [2020-10-12 10:01:12,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 156 transitions. [2020-10-12 10:01:12,856 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 156 transitions. Word has length 147 [2020-10-12 10:01:12,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 10:01:12,856 INFO L479 AbstractCegarLoop]: Abstraction has 154 states and 156 transitions. [2020-10-12 10:01:12,857 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-12 10:01:12,857 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 156 transitions. [2020-10-12 10:01:12,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2020-10-12 10:01:12,858 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 10:01:12,860 INFO L422 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 10:01:12,860 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2020-10-12 10:01:12,860 INFO L427 AbstractCegarLoop]: === Iteration 24 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 10:01:12,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 10:01:12,861 INFO L82 PathProgramCache]: Analyzing trace with hash -1114581421, now seen corresponding path program 22 times [2020-10-12 10:01:12,861 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 10:01:12,861 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [875173002] [2020-10-12 10:01:12,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 10:01:12,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:01:12,887 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:01:12,906 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:01:17,902 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:01:17,903 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-10-12 10:01:17,903 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 10:01:17,903 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5020 [2020-10-12 10:01:17,903 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:01:17,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-12 10:01:17,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 37 [2020-10-12 10:01:17,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-12 10:01:17,904 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:01:18,053 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 10:01:18,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:01:18,055 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:01:18,056 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:01:18,056 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:01:18,057 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:01:18,057 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:01:18,057 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:01:18,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:01:18,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:01:18,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:01:18,058 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:01:18,058 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-12 10:01:18,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:01:18,059 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:01:18,059 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:01:18,060 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:01:18,060 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:01:18,060 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 10:01:18,060 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:01:18,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:01:18,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:01:18,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:01:18,060 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:01:18,061 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-10-12 10:01:18,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:01:18,062 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:01:18,062 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:01:18,063 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:01:18,063 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:01:18,063 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 10:01:18,063 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:01:18,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:01:18,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:01:18,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:01:18,064 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:01:18,065 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-12 10:01:18,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:01:18,066 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:01:18,066 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:01:18,066 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:01:18,067 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:01:18,067 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 10:01:18,067 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:01:18,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:01:18,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:01:18,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:01:18,068 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:01:18,069 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-10-12 10:01:18,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:01:18,070 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:01:18,070 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:01:18,071 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:01:18,071 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:01:18,071 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 10:01:18,071 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:01:18,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:01:18,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:01:18,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:01:18,072 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:01:18,072 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-12 10:01:18,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:01:18,074 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:01:18,074 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:01:18,074 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:01:18,075 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:01:18,075 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 10:01:18,075 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:01:18,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:01:18,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:01:18,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:01:18,076 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:01:18,076 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-10-12 10:01:18,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:01:18,077 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:01:18,078 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:01:18,078 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:01:18,079 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:01:18,079 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:01:18,079 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:01:18,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:01:18,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:01:18,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:01:18,080 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:01:18,080 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2020-10-12 10:01:18,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:01:18,081 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:01:18,082 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:01:18,082 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:01:18,083 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:01:18,083 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:01:18,083 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:01:18,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:01:18,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:01:18,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:01:18,084 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:01:18,084 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-10-12 10:01:18,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:01:18,085 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:01:18,086 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:01:18,086 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:01:18,087 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:01:18,087 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:01:18,087 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:01:18,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:01:18,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:01:18,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:01:18,088 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:01:18,088 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-10-12 10:01:18,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:01:18,089 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:01:18,089 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:01:18,089 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:01:18,090 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:01:18,090 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 10:01:18,090 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:01:18,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:01:18,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:01:18,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:01:18,090 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:01:18,091 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-10-12 10:01:18,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:01:18,092 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:01:18,093 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:01:18,093 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:01:18,093 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:01:18,093 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 10:01:18,093 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:01:18,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:01:18,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:01:18,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:01:18,094 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:01:18,094 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-10-12 10:01:18,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:01:18,095 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:01:18,095 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:01:18,096 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:01:18,096 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:01:18,096 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 10:01:18,096 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:01:18,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:01:18,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:01:18,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:01:18,096 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:01:18,109 INFO L134 CoverageAnalysis]: Checked inductivity of 772 backedges. 22 proven. 144 refuted. 0 times theorem prover too weak. 606 trivial. 0 not checked. [2020-10-12 10:01:18,109 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [875173002] [2020-10-12 10:01:18,109 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 10:01:18,109 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2020-10-12 10:01:18,110 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1875683767] [2020-10-12 10:01:18,110 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-12 10:01:18,110 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 10:01:18,110 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-12 10:01:18,111 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=107, Invalid=133, Unknown=0, NotChecked=0, Total=240 [2020-10-12 10:01:18,111 INFO L87 Difference]: Start difference. First operand 154 states and 156 transitions. Second operand 16 states. [2020-10-12 10:01:18,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 10:01:18,313 INFO L93 Difference]: Finished difference Result 283 states and 288 transitions. [2020-10-12 10:01:18,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-12 10:01:18,313 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 151 [2020-10-12 10:01:18,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 10:01:18,315 INFO L225 Difference]: With dead ends: 283 [2020-10-12 10:01:18,315 INFO L226 Difference]: Without dead ends: 160 [2020-10-12 10:01:18,317 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=107, Invalid=133, Unknown=0, NotChecked=0, Total=240 [2020-10-12 10:01:18,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2020-10-12 10:01:18,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 158. [2020-10-12 10:01:18,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 158 states. [2020-10-12 10:01:18,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 160 transitions. [2020-10-12 10:01:18,342 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 160 transitions. Word has length 151 [2020-10-12 10:01:18,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 10:01:18,342 INFO L479 AbstractCegarLoop]: Abstraction has 158 states and 160 transitions. [2020-10-12 10:01:18,342 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-10-12 10:01:18,343 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 160 transitions. [2020-10-12 10:01:18,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2020-10-12 10:01:18,349 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 10:01:18,349 INFO L422 BasicCegarLoop]: trace histogram [13, 13, 13, 13, 12, 12, 12, 11, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 10:01:18,350 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2020-10-12 10:01:18,350 INFO L427 AbstractCegarLoop]: === Iteration 25 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 10:01:18,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 10:01:18,350 INFO L82 PathProgramCache]: Analyzing trace with hash -492034353, now seen corresponding path program 23 times [2020-10-12 10:01:18,350 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 10:01:18,351 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1366089702] [2020-10-12 10:01:18,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 10:01:18,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:01:18,382 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:01:18,411 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:01:23,381 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:01:23,382 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 185 [2020-10-12 10:01:23,382 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 10:01:23,382 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5008 [2020-10-12 10:01:23,382 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:01:23,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-12 10:01:23,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-12 10:01:23,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-10-12 10:01:23,382 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:01:23,558 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 10:01:23,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:01:23,560 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:01:23,561 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:01:23,562 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:01:23,562 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:01:23,562 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:01:23,562 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:01:23,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:01:23,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:01:23,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:01:23,562 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:01:23,563 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-12 10:01:23,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:01:23,564 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:01:23,564 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:01:23,564 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:01:23,565 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:01:23,565 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 10:01:23,565 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:01:23,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:01:23,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:01:23,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:01:23,565 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:01:23,566 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-12 10:01:23,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:01:23,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:01:23,567 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:01:23,567 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:01:23,568 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:01:23,568 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 10:01:23,568 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:01:23,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:01:23,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:01:23,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:01:23,569 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:01:23,569 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-10-12 10:01:23,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:01:23,570 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:01:23,570 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:01:23,571 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:01:23,571 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:01:23,571 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 10:01:23,571 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:01:23,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:01:23,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:01:23,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:01:23,571 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:01:23,572 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-12 10:01:23,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:01:23,572 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:01:23,573 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:01:23,573 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:01:23,573 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:01:23,573 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 10:01:23,574 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:01:23,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:01:23,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:01:23,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:01:23,574 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:01:23,575 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-12 10:01:23,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:01:23,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:01:23,577 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:01:23,577 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:01:23,577 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:01:23,577 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 10:01:23,577 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:01:23,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:01:23,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:01:23,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:01:23,578 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:01:23,579 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2020-10-12 10:01:23,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:01:23,580 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:01:23,580 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:01:23,581 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:01:23,581 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:01:23,581 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:01:23,581 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:01:23,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:01:23,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:01:23,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:01:23,582 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:01:23,582 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2020-10-12 10:01:23,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:01:23,583 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:01:23,584 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:01:23,584 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:01:23,584 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:01:23,584 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 10:01:23,584 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:01:23,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:01:23,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:01:23,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:01:23,585 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:01:23,586 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2020-10-12 10:01:23,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:01:23,587 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:01:23,587 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:01:23,587 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:01:23,587 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:01:23,587 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 10:01:23,587 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:01:23,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:01:23,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:01:23,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:01:23,588 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:01:23,588 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-10-12 10:01:23,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:01:23,589 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:01:23,590 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:01:23,590 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:01:23,591 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:01:23,591 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:01:23,591 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:01:23,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:01:23,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:01:23,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:01:23,592 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:01:23,592 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-12 10:01:23,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:01:23,594 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:01:23,595 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:01:23,595 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:01:23,595 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:01:23,596 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:01:23,596 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:01:23,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:01:23,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:01:23,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:01:23,596 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:01:23,597 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2020-10-12 10:01:23,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:01:23,598 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:01:23,599 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:01:23,599 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:01:23,600 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:01:23,600 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:01:23,600 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:01:23,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:01:23,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:01:23,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:01:23,601 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:01:23,611 INFO L134 CoverageAnalysis]: Checked inductivity of 822 backedges. 22 proven. 169 refuted. 0 times theorem prover too weak. 631 trivial. 0 not checked. [2020-10-12 10:01:23,611 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1366089702] [2020-10-12 10:01:23,612 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 10:01:23,612 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2020-10-12 10:01:23,612 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1105302339] [2020-10-12 10:01:23,612 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-10-12 10:01:23,612 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 10:01:23,612 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-10-12 10:01:23,613 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=122, Invalid=150, Unknown=0, NotChecked=0, Total=272 [2020-10-12 10:01:23,613 INFO L87 Difference]: Start difference. First operand 158 states and 160 transitions. Second operand 17 states. [2020-10-12 10:01:23,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 10:01:23,833 INFO L93 Difference]: Finished difference Result 289 states and 294 transitions. [2020-10-12 10:01:23,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-12 10:01:23,834 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 155 [2020-10-12 10:01:23,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 10:01:23,836 INFO L225 Difference]: With dead ends: 289 [2020-10-12 10:01:23,836 INFO L226 Difference]: Without dead ends: 164 [2020-10-12 10:01:23,837 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=122, Invalid=150, Unknown=0, NotChecked=0, Total=272 [2020-10-12 10:01:23,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2020-10-12 10:01:23,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 162. [2020-10-12 10:01:23,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 162 states. [2020-10-12 10:01:23,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 164 transitions. [2020-10-12 10:01:23,850 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 164 transitions. Word has length 155 [2020-10-12 10:01:23,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 10:01:23,851 INFO L479 AbstractCegarLoop]: Abstraction has 162 states and 164 transitions. [2020-10-12 10:01:23,851 INFO L480 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-10-12 10:01:23,851 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 164 transitions. [2020-10-12 10:01:23,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2020-10-12 10:01:23,852 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 10:01:23,852 INFO L422 BasicCegarLoop]: trace histogram [14, 14, 14, 14, 12, 12, 12, 11, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 10:01:23,853 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2020-10-12 10:01:23,853 INFO L427 AbstractCegarLoop]: === Iteration 26 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 10:01:23,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 10:01:23,853 INFO L82 PathProgramCache]: Analyzing trace with hash -1822701237, now seen corresponding path program 24 times [2020-10-12 10:01:23,853 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 10:01:23,854 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1638998752] [2020-10-12 10:01:23,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 10:01:23,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:01:23,876 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:01:23,896 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:01:28,867 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:01:28,867 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 189 [2020-10-12 10:01:28,868 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 10:01:28,868 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-12 10:01:28,868 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:01:28,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-10-12 10:01:28,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-12 10:01:28,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-10-12 10:01:28,868 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:01:29,058 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 10:01:29,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:01:29,060 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:01:29,062 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:01:29,062 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:01:29,062 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:01:29,062 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:01:29,062 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:01:29,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:01:29,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:01:29,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:01:29,063 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:01:29,064 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-10-12 10:01:29,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:01:29,064 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:01:29,065 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:01:29,065 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:01:29,065 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:01:29,065 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 10:01:29,065 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:01:29,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:01:29,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:01:29,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:01:29,066 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:01:29,066 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-12 10:01:29,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:01:29,067 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:01:29,068 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:01:29,068 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:01:29,068 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:01:29,068 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 10:01:29,068 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:01:29,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:01:29,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:01:29,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:01:29,069 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:01:29,069 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-10-12 10:01:29,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:01:29,070 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:01:29,070 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:01:29,070 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:01:29,070 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:01:29,071 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 10:01:29,071 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:01:29,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:01:29,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:01:29,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:01:29,071 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:01:29,072 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-12 10:01:29,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:01:29,072 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:01:29,073 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:01:29,073 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:01:29,073 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:01:29,074 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 10:01:29,074 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:01:29,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:01:29,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:01:29,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:01:29,074 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:01:29,075 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-10-12 10:01:29,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:01:29,078 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:01:29,079 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:01:29,079 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:01:29,079 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:01:29,079 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 10:01:29,080 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:01:29,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:01:29,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:01:29,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:01:29,080 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:01:29,081 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2020-10-12 10:01:29,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:01:29,082 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:01:29,083 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:01:29,083 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:01:29,083 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:01:29,083 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 10:01:29,083 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:01:29,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:01:29,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:01:29,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:01:29,084 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:01:29,085 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-10-12 10:01:29,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:01:29,086 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:01:29,087 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:01:29,087 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:01:29,087 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:01:29,087 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:01:29,088 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:01:29,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:01:29,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:01:29,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:01:29,088 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:01:29,089 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-10-12 10:01:29,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:01:29,089 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:01:29,090 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:01:29,090 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:01:29,090 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:01:29,090 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 10:01:29,090 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:01:29,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:01:29,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:01:29,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:01:29,091 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:01:29,091 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-10-12 10:01:29,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:01:29,092 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:01:29,092 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:01:29,093 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:01:29,093 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:01:29,093 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 10:01:29,093 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:01:29,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:01:29,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:01:29,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:01:29,093 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:01:29,094 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-10-12 10:01:29,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:01:29,095 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:01:29,096 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:01:29,096 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:01:29,096 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:01:29,096 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:01:29,096 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:01:29,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:01:29,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:01:29,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:01:29,097 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:01:29,098 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-10-12 10:01:29,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:01:29,099 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:01:29,099 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:01:29,099 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:01:29,099 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:01:29,100 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 10:01:29,100 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:01:29,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:01:29,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:01:29,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:01:29,100 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:01:29,112 INFO L134 CoverageAnalysis]: Checked inductivity of 876 backedges. 22 proven. 196 refuted. 0 times theorem prover too weak. 658 trivial. 0 not checked. [2020-10-12 10:01:29,112 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1638998752] [2020-10-12 10:01:29,113 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 10:01:29,113 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2020-10-12 10:01:29,113 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1688176124] [2020-10-12 10:01:29,114 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-10-12 10:01:29,114 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 10:01:29,114 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-10-12 10:01:29,114 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=138, Invalid=168, Unknown=0, NotChecked=0, Total=306 [2020-10-12 10:01:29,114 INFO L87 Difference]: Start difference. First operand 162 states and 164 transitions. Second operand 18 states. [2020-10-12 10:01:29,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 10:01:29,352 INFO L93 Difference]: Finished difference Result 295 states and 300 transitions. [2020-10-12 10:01:29,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-12 10:01:29,356 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 159 [2020-10-12 10:01:29,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 10:01:29,357 INFO L225 Difference]: With dead ends: 295 [2020-10-12 10:01:29,357 INFO L226 Difference]: Without dead ends: 168 [2020-10-12 10:01:29,358 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=138, Invalid=168, Unknown=0, NotChecked=0, Total=306 [2020-10-12 10:01:29,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2020-10-12 10:01:29,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 166. [2020-10-12 10:01:29,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 166 states. [2020-10-12 10:01:29,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 168 transitions. [2020-10-12 10:01:29,368 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 168 transitions. Word has length 159 [2020-10-12 10:01:29,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 10:01:29,368 INFO L479 AbstractCegarLoop]: Abstraction has 166 states and 168 transitions. [2020-10-12 10:01:29,368 INFO L480 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-10-12 10:01:29,368 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 168 transitions. [2020-10-12 10:01:29,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2020-10-12 10:01:29,369 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 10:01:29,369 INFO L422 BasicCegarLoop]: trace histogram [15, 15, 15, 15, 12, 12, 12, 11, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 10:01:29,370 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2020-10-12 10:01:29,370 INFO L427 AbstractCegarLoop]: === Iteration 27 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 10:01:29,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 10:01:29,370 INFO L82 PathProgramCache]: Analyzing trace with hash 1386921415, now seen corresponding path program 25 times [2020-10-12 10:01:29,370 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 10:01:29,371 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1069485714] [2020-10-12 10:01:29,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 10:01:29,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:01:29,388 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:01:29,409 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:01:34,405 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:01:34,405 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 193 [2020-10-12 10:01:34,405 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 10:01:34,405 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5022 [2020-10-12 10:01:34,405 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:01:34,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-12 10:01:34,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-12 10:01:34,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 32 [2020-10-12 10:01:34,406 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:01:34,616 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 10:01:34,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:01:34,618 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:01:34,618 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:01:34,619 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:01:34,619 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:01:34,619 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:01:34,619 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:01:34,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:01:34,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:01:34,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:01:34,619 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:01:34,620 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-12 10:01:34,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:01:34,621 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:01:34,621 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:01:34,622 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:01:34,622 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:01:34,622 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 10:01:34,622 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:01:34,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:01:34,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:01:34,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:01:34,622 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:01:34,623 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-10-12 10:01:34,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:01:34,624 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:01:34,624 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:01:34,624 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:01:34,624 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:01:34,624 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 10:01:34,625 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:01:34,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:01:34,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:01:34,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:01:34,625 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:01:34,626 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-12 10:01:34,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:01:34,626 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:01:34,627 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:01:34,627 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:01:34,627 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:01:34,627 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 10:01:34,627 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:01:34,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:01:34,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:01:34,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:01:34,628 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:01:34,628 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-12 10:01:34,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:01:34,629 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:01:34,629 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:01:34,629 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:01:34,630 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:01:34,630 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 10:01:34,630 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:01:34,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:01:34,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:01:34,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:01:34,630 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:01:34,631 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2020-10-12 10:01:34,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:01:34,632 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:01:34,633 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:01:34,633 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:01:34,633 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:01:34,633 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 10:01:34,634 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:01:34,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:01:34,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:01:34,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:01:34,634 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:01:34,635 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2020-10-12 10:01:34,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:01:34,636 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:01:34,637 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:01:34,637 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:01:34,637 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:01:34,637 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 10:01:34,637 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:01:34,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:01:34,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:01:34,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:01:34,638 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:01:34,639 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2020-10-12 10:01:34,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:01:34,640 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:01:34,641 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:01:34,641 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:01:34,641 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:01:34,641 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:01:34,641 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:01:34,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:01:34,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:01:34,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:01:34,642 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:01:34,643 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-10-12 10:01:34,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:01:34,644 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:01:34,645 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:01:34,645 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:01:34,645 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:01:34,645 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 10:01:34,645 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:01:34,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:01:34,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:01:34,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:01:34,646 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:01:34,647 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-12 10:01:34,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:01:34,648 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:01:34,650 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:01:34,650 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:01:34,650 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:01:34,651 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 10:01:34,651 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:01:34,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:01:34,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:01:34,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:01:34,651 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:01:34,652 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2020-10-12 10:01:34,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:01:34,653 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:01:34,654 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:01:34,654 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:01:34,654 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:01:34,654 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 10:01:34,655 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:01:34,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:01:34,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:01:34,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:01:34,655 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:01:34,656 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2020-10-12 10:01:34,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:01:34,657 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:01:34,658 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:01:34,658 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:01:34,658 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:01:34,659 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:01:34,659 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:01:34,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:01:34,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:01:34,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:01:34,660 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:01:34,675 INFO L134 CoverageAnalysis]: Checked inductivity of 934 backedges. 22 proven. 225 refuted. 0 times theorem prover too weak. 687 trivial. 0 not checked. [2020-10-12 10:01:34,676 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1069485714] [2020-10-12 10:01:34,676 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 10:01:34,676 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2020-10-12 10:01:34,676 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [700321811] [2020-10-12 10:01:34,677 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-10-12 10:01:34,677 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 10:01:34,678 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-10-12 10:01:34,678 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=155, Invalid=187, Unknown=0, NotChecked=0, Total=342 [2020-10-12 10:01:34,678 INFO L87 Difference]: Start difference. First operand 166 states and 168 transitions. Second operand 19 states. [2020-10-12 10:01:34,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 10:01:34,929 INFO L93 Difference]: Finished difference Result 301 states and 306 transitions. [2020-10-12 10:01:34,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-12 10:01:34,929 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 163 [2020-10-12 10:01:34,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 10:01:34,931 INFO L225 Difference]: With dead ends: 301 [2020-10-12 10:01:34,931 INFO L226 Difference]: Without dead ends: 172 [2020-10-12 10:01:34,932 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=155, Invalid=187, Unknown=0, NotChecked=0, Total=342 [2020-10-12 10:01:34,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172 states. [2020-10-12 10:01:34,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172 to 170. [2020-10-12 10:01:34,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 170 states. [2020-10-12 10:01:34,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 172 transitions. [2020-10-12 10:01:34,945 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 172 transitions. Word has length 163 [2020-10-12 10:01:34,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 10:01:34,945 INFO L479 AbstractCegarLoop]: Abstraction has 170 states and 172 transitions. [2020-10-12 10:01:34,945 INFO L480 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-10-12 10:01:34,945 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 172 transitions. [2020-10-12 10:01:34,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2020-10-12 10:01:34,947 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 10:01:34,947 INFO L422 BasicCegarLoop]: trace histogram [16, 16, 16, 16, 12, 12, 12, 11, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 10:01:34,947 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2020-10-12 10:01:34,948 INFO L427 AbstractCegarLoop]: === Iteration 28 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 10:01:34,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 10:01:34,948 INFO L82 PathProgramCache]: Analyzing trace with hash -719059901, now seen corresponding path program 26 times [2020-10-12 10:01:34,948 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 10:01:34,948 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1305742518] [2020-10-12 10:01:34,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 10:01:34,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:01:34,973 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:01:35,008 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:01:39,963 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:01:39,963 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 197 [2020-10-12 10:01:39,963 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 10:01:39,963 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-10-12 10:01:39,963 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:01:39,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-12 10:01:39,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-12 10:01:39,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-12 10:01:39,964 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:01:40,256 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 10:01:40,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:01:40,258 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:01:40,259 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:01:40,260 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:01:40,260 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:01:40,260 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:01:40,260 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:01:40,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:01:40,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:01:40,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:01:40,262 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 10:01:40,263 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-12 10:01:40,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:01:40,264 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:01:40,265 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:01:40,265 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:01:40,266 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:01:40,266 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:01:40,266 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:01:40,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:01:40,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:01:40,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:01:40,267 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 10:01:40,269 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-10-12 10:01:40,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:01:40,270 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:01:40,271 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:01:40,271 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:01:40,271 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:01:40,272 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:01:40,272 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:01:40,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:01:40,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:01:40,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:01:40,273 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 10:01:40,274 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-12 10:01:40,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:01:40,276 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:01:40,276 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:01:40,277 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:01:40,277 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:01:40,277 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:01:40,278 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:01:40,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:01:40,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:01:40,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:01:40,279 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 10:01:40,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-10-12 10:01:40,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:01:40,282 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:01:40,283 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:01:40,284 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:01:40,284 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:01:40,284 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:01:40,284 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:01:40,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:01:40,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:01:40,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:01:40,286 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 10:01:40,287 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2020-10-12 10:01:40,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:01:40,288 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:01:40,289 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:01:40,289 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:01:40,290 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:01:40,290 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:01:40,290 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:01:40,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:01:40,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:01:40,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:01:40,291 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 10:01:40,293 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-10-12 10:01:40,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:01:40,294 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:01:40,295 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:01:40,295 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:01:40,295 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:01:40,296 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:01:40,296 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:01:40,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:01:40,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:01:40,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:01:40,297 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 10:01:40,298 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-10-12 10:01:40,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:01:40,301 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:01:40,303 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:01:40,303 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:01:40,303 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:01:40,304 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 10:01:40,304 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:01:40,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:01:40,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:01:40,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:01:40,305 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 10:01:40,306 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-10-12 10:01:40,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:01:40,307 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:01:40,309 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:01:40,309 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:01:40,309 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:01:40,310 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:01:40,310 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:01:40,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:01:40,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:01:40,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:01:40,312 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 10:01:40,313 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-10-12 10:01:40,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:01:40,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:01:40,317 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:01:40,318 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:01:40,318 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:01:40,318 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 10:01:40,319 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:01:40,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:01:40,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:01:40,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:01:40,320 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 10:01:40,322 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-10-12 10:01:40,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:01:40,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:01:40,324 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:01:40,325 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:01:40,325 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:01:40,325 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:01:40,325 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:01:40,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:01:40,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:01:40,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:01:40,327 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 10:01:40,328 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2020-10-12 10:01:40,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:01:40,329 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:01:40,330 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:01:40,330 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:01:40,331 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:01:40,331 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:01:40,331 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:01:40,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:01:40,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:01:40,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:01:40,333 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 10:01:40,364 INFO L134 CoverageAnalysis]: Checked inductivity of 996 backedges. 22 proven. 256 refuted. 0 times theorem prover too weak. 718 trivial. 0 not checked. [2020-10-12 10:01:40,365 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1305742518] [2020-10-12 10:01:40,365 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 10:01:40,365 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20] total 20 [2020-10-12 10:01:40,366 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [497204696] [2020-10-12 10:01:40,366 INFO L459 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-10-12 10:01:40,366 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 10:01:40,366 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-10-12 10:01:40,367 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=173, Invalid=207, Unknown=0, NotChecked=0, Total=380 [2020-10-12 10:01:40,367 INFO L87 Difference]: Start difference. First operand 170 states and 172 transitions. Second operand 20 states. [2020-10-12 10:01:40,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 10:01:40,713 INFO L93 Difference]: Finished difference Result 307 states and 312 transitions. [2020-10-12 10:01:40,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-10-12 10:01:40,714 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 167 [2020-10-12 10:01:40,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 10:01:40,716 INFO L225 Difference]: With dead ends: 307 [2020-10-12 10:01:40,716 INFO L226 Difference]: Without dead ends: 176 [2020-10-12 10:01:40,717 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=173, Invalid=207, Unknown=0, NotChecked=0, Total=380 [2020-10-12 10:01:40,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176 states. [2020-10-12 10:01:40,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176 to 174. [2020-10-12 10:01:40,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 174 states. [2020-10-12 10:01:40,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 176 transitions. [2020-10-12 10:01:40,739 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 176 transitions. Word has length 167 [2020-10-12 10:01:40,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 10:01:40,739 INFO L479 AbstractCegarLoop]: Abstraction has 174 states and 176 transitions. [2020-10-12 10:01:40,739 INFO L480 AbstractCegarLoop]: Interpolant automaton has 20 states. [2020-10-12 10:01:40,740 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 176 transitions. [2020-10-12 10:01:40,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2020-10-12 10:01:40,742 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 10:01:40,742 INFO L422 BasicCegarLoop]: trace histogram [17, 17, 17, 17, 12, 12, 12, 11, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 10:01:40,743 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2020-10-12 10:01:40,743 INFO L427 AbstractCegarLoop]: === Iteration 29 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 10:01:40,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 10:01:40,744 INFO L82 PathProgramCache]: Analyzing trace with hash -2133680961, now seen corresponding path program 27 times [2020-10-12 10:01:40,744 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 10:01:40,744 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2072224550] [2020-10-12 10:01:40,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 10:01:40,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:01:40,781 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:01:40,833 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:01:45,828 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:01:45,828 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 201 [2020-10-12 10:01:45,828 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 10:01:45,828 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5061 [2020-10-12 10:01:45,829 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:01:45,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-12 10:01:45,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 47 [2020-10-12 10:01:45,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-10-12 10:01:45,829 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:01:46,141 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 10:01:46,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:01:46,142 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:01:46,143 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:01:46,143 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:01:46,144 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:01:46,144 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:01:46,144 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:01:46,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:01:46,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:01:46,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:01:46,145 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:01:46,145 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-10-12 10:01:46,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:01:46,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:01:46,147 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:01:46,147 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:01:46,148 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:01:46,148 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 10:01:46,148 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:01:46,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:01:46,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:01:46,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:01:46,149 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:01:46,150 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-12 10:01:46,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:01:46,151 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:01:46,152 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:01:46,153 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:01:46,153 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:01:46,153 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:01:46,154 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:01:46,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:01:46,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:01:46,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:01:46,155 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 10:01:46,156 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-12 10:01:46,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:01:46,157 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:01:46,158 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:01:46,159 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:01:46,159 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:01:46,159 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:01:46,159 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:01:46,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:01:46,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:01:46,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:01:46,160 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:01:46,161 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2020-10-12 10:01:46,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:01:46,163 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:01:46,164 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:01:46,164 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:01:46,164 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:01:46,164 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:01:46,165 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:01:46,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:01:46,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:01:46,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:01:46,166 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 10:01:46,167 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2020-10-12 10:01:46,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:01:46,168 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:01:46,169 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:01:46,169 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:01:46,170 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:01:46,170 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:01:46,170 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:01:46,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:01:46,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:01:46,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:01:46,171 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 10:01:46,173 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2020-10-12 10:01:46,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:01:46,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:01:46,175 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:01:46,175 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:01:46,175 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:01:46,176 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:01:46,176 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:01:46,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:01:46,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:01:46,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:01:46,177 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 10:01:46,178 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-10-12 10:01:46,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:01:46,180 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:01:46,181 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:01:46,181 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:01:46,181 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:01:46,182 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:01:46,182 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:01:46,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:01:46,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:01:46,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:01:46,183 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 10:01:46,184 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-12 10:01:46,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:01:46,188 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:01:46,189 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:01:46,189 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:01:46,189 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:01:46,190 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 10:01:46,190 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:01:46,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:01:46,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:01:46,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:01:46,191 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:01:46,192 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2020-10-12 10:01:46,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:01:46,193 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:01:46,193 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:01:46,194 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:01:46,194 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:01:46,194 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 10:01:46,194 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:01:46,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:01:46,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:01:46,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:01:46,195 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:01:46,195 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2020-10-12 10:01:46,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:01:46,196 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:01:46,197 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:01:46,197 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:01:46,198 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:01:46,198 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 10:01:46,198 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:01:46,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:01:46,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:01:46,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:01:46,199 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:01:46,199 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2020-10-12 10:01:46,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:01:46,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:01:46,201 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:01:46,201 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:01:46,202 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:01:46,202 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 10:01:46,202 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:01:46,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:01:46,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:01:46,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:01:46,203 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:01:46,228 INFO L134 CoverageAnalysis]: Checked inductivity of 1062 backedges. 22 proven. 289 refuted. 0 times theorem prover too weak. 751 trivial. 0 not checked. [2020-10-12 10:01:46,229 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2072224550] [2020-10-12 10:01:46,229 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 10:01:46,229 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21] total 21 [2020-10-12 10:01:46,229 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [606935118] [2020-10-12 10:01:46,231 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2020-10-12 10:01:46,231 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 10:01:46,231 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2020-10-12 10:01:46,232 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=192, Invalid=228, Unknown=0, NotChecked=0, Total=420 [2020-10-12 10:01:46,232 INFO L87 Difference]: Start difference. First operand 174 states and 176 transitions. Second operand 21 states. [2020-10-12 10:01:46,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 10:01:46,438 INFO L93 Difference]: Finished difference Result 313 states and 318 transitions. [2020-10-12 10:01:46,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-10-12 10:01:46,439 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 171 [2020-10-12 10:01:46,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 10:01:46,440 INFO L225 Difference]: With dead ends: 313 [2020-10-12 10:01:46,441 INFO L226 Difference]: Without dead ends: 180 [2020-10-12 10:01:46,441 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=192, Invalid=228, Unknown=0, NotChecked=0, Total=420 [2020-10-12 10:01:46,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2020-10-12 10:01:46,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 178. [2020-10-12 10:01:46,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 178 states. [2020-10-12 10:01:46,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 180 transitions. [2020-10-12 10:01:46,459 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 180 transitions. Word has length 171 [2020-10-12 10:01:46,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 10:01:46,459 INFO L479 AbstractCegarLoop]: Abstraction has 178 states and 180 transitions. [2020-10-12 10:01:46,459 INFO L480 AbstractCegarLoop]: Interpolant automaton has 21 states. [2020-10-12 10:01:46,459 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 180 transitions. [2020-10-12 10:01:46,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2020-10-12 10:01:46,460 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 10:01:46,460 INFO L422 BasicCegarLoop]: trace histogram [18, 18, 18, 18, 12, 12, 12, 11, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 10:01:46,461 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2020-10-12 10:01:46,461 INFO L427 AbstractCegarLoop]: === Iteration 30 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 10:01:46,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 10:01:46,461 INFO L82 PathProgramCache]: Analyzing trace with hash -314472645, now seen corresponding path program 28 times [2020-10-12 10:01:46,461 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 10:01:46,461 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1191855173] [2020-10-12 10:01:46,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 10:01:46,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:01:46,486 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:01:46,526 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:01:51,492 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:01:51,492 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 205 [2020-10-12 10:01:51,492 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 10:01:51,493 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5015 [2020-10-12 10:01:51,493 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:01:51,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 20 [2020-10-12 10:01:51,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-12 10:01:51,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-10-12 10:01:51,493 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:01:51,771 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 10:01:51,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:01:51,772 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:01:51,774 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:01:51,774 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:01:51,774 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:01:51,774 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:01:51,775 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:01:51,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:01:51,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:01:51,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:01:51,775 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:01:51,776 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-10-12 10:01:51,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:01:51,777 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:01:51,779 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:01:51,779 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:01:51,779 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:01:51,779 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:01:51,780 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:01:51,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:01:51,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:01:51,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:01:51,780 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:01:51,781 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-12 10:01:51,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:01:51,782 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:01:51,783 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:01:51,783 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:01:51,783 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:01:51,783 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 10:01:51,784 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:01:51,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:01:51,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:01:51,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:01:51,784 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:01:51,785 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-10-12 10:01:51,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:01:51,786 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:01:51,786 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:01:51,787 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:01:51,787 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:01:51,787 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 10:01:51,787 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:01:51,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:01:51,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:01:51,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:01:51,788 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:01:51,789 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2020-10-12 10:01:51,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:01:51,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:01:51,790 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:01:51,790 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:01:51,790 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:01:51,791 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 10:01:51,791 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:01:51,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:01:51,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:01:51,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:01:51,792 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:01:51,792 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-10-12 10:01:51,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:01:51,793 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:01:51,794 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:01:51,794 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:01:51,794 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:01:51,794 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 10:01:51,795 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:01:51,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:01:51,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:01:51,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:01:51,795 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:01:51,796 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-10-12 10:01:51,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:01:51,797 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:01:51,798 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:01:51,798 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:01:51,798 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:01:51,798 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 10:01:51,798 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:01:51,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:01:51,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:01:51,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:01:51,799 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:01:51,800 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-10-12 10:01:51,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:01:51,801 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:01:51,802 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:01:51,802 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:01:51,802 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:01:51,802 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:01:51,803 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:01:51,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:01:51,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:01:51,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:01:51,803 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:01:51,804 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-10-12 10:01:51,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:01:51,805 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:01:51,806 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:01:51,806 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:01:51,807 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:01:51,807 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:01:51,807 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:01:51,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:01:51,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:01:51,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:01:51,808 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:01:51,809 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-10-12 10:01:51,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:01:51,810 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:01:51,811 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:01:51,811 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:01:51,811 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:01:51,811 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:01:51,811 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:01:51,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:01:51,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:01:51,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:01:51,812 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:01:51,813 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2020-10-12 10:01:51,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:01:51,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:01:51,815 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:01:51,815 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:01:51,815 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:01:51,815 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 10:01:51,815 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:01:51,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:01:51,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:01:51,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:01:51,816 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:01:51,817 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2020-10-12 10:01:51,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:01:51,818 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:01:51,819 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:01:51,819 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:01:51,819 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:01:51,820 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:01:51,820 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:01:51,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:01:51,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:01:51,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:01:51,820 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:01:51,840 INFO L134 CoverageAnalysis]: Checked inductivity of 1132 backedges. 22 proven. 324 refuted. 0 times theorem prover too weak. 786 trivial. 0 not checked. [2020-10-12 10:01:51,840 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1191855173] [2020-10-12 10:01:51,840 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 10:01:51,841 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22] total 22 [2020-10-12 10:01:51,841 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [306499741] [2020-10-12 10:01:51,841 INFO L459 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-10-12 10:01:51,841 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 10:01:51,842 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-10-12 10:01:51,842 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=212, Invalid=250, Unknown=0, NotChecked=0, Total=462 [2020-10-12 10:01:51,842 INFO L87 Difference]: Start difference. First operand 178 states and 180 transitions. Second operand 22 states. [2020-10-12 10:01:52,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 10:01:52,075 INFO L93 Difference]: Finished difference Result 319 states and 324 transitions. [2020-10-12 10:01:52,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-10-12 10:01:52,076 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 175 [2020-10-12 10:01:52,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 10:01:52,078 INFO L225 Difference]: With dead ends: 319 [2020-10-12 10:01:52,078 INFO L226 Difference]: Without dead ends: 184 [2020-10-12 10:01:52,079 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=212, Invalid=250, Unknown=0, NotChecked=0, Total=462 [2020-10-12 10:01:52,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184 states. [2020-10-12 10:01:52,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 182. [2020-10-12 10:01:52,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 182 states. [2020-10-12 10:01:52,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 184 transitions. [2020-10-12 10:01:52,090 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 184 transitions. Word has length 175 [2020-10-12 10:01:52,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 10:01:52,091 INFO L479 AbstractCegarLoop]: Abstraction has 182 states and 184 transitions. [2020-10-12 10:01:52,091 INFO L480 AbstractCegarLoop]: Interpolant automaton has 22 states. [2020-10-12 10:01:52,091 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 184 transitions. [2020-10-12 10:01:52,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2020-10-12 10:01:52,092 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 10:01:52,092 INFO L422 BasicCegarLoop]: trace histogram [19, 19, 19, 19, 12, 12, 12, 11, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 10:01:52,092 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2020-10-12 10:01:52,092 INFO L427 AbstractCegarLoop]: === Iteration 31 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 10:01:52,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 10:01:52,093 INFO L82 PathProgramCache]: Analyzing trace with hash 1669055415, now seen corresponding path program 29 times [2020-10-12 10:01:52,093 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 10:01:52,093 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1676216606] [2020-10-12 10:01:52,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 10:01:52,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:01:52,112 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:01:52,146 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:01:57,105 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:01:57,106 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 209 [2020-10-12 10:01:57,106 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 10:01:57,106 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-12 10:01:57,106 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:01:57,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-12 10:01:57,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 51 [2020-10-12 10:01:57,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 40 [2020-10-12 10:01:57,106 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:01:57,399 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 10:01:57,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:01:57,401 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:01:57,402 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:01:57,402 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:01:57,402 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:01:57,403 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:01:57,403 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:01:57,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:01:57,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:01:57,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:01:57,403 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:01:57,404 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-12 10:01:57,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:01:57,405 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:01:57,405 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:01:57,405 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:01:57,405 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:01:57,405 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 10:01:57,406 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:01:57,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:01:57,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:01:57,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:01:57,406 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:01:57,407 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-12 10:01:57,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:01:57,407 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:01:57,408 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:01:57,408 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:01:57,408 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:01:57,408 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 10:01:57,408 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:01:57,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:01:57,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:01:57,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:01:57,409 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:01:57,409 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2020-10-12 10:01:57,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:01:57,410 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:01:57,411 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:01:57,411 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:01:57,412 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:01:57,412 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 10:01:57,412 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:01:57,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:01:57,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:01:57,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:01:57,413 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:01:57,413 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2020-10-12 10:01:57,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:01:57,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:01:57,415 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:01:57,415 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:01:57,415 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:01:57,415 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 10:01:57,416 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:01:57,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:01:57,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:01:57,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:01:57,416 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:01:57,417 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2020-10-12 10:01:57,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:01:57,418 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:01:57,419 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:01:57,419 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:01:57,419 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:01:57,419 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 10:01:57,419 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:01:57,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:01:57,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:01:57,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:01:57,420 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:01:57,421 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-10-12 10:01:57,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:01:57,422 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:01:57,423 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:01:57,423 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:01:57,423 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:01:57,423 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 10:01:57,423 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:01:57,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:01:57,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:01:57,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:01:57,424 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:01:57,425 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-12 10:01:57,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:01:57,426 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:01:57,426 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:01:57,426 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:01:57,427 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:01:57,427 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 10:01:57,427 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:01:57,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:01:57,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:01:57,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:01:57,427 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:01:57,428 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2020-10-12 10:01:57,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:01:57,429 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:01:57,429 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:01:57,429 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:01:57,429 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:01:57,429 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 10:01:57,430 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:01:57,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:01:57,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:01:57,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:01:57,430 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:01:57,431 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2020-10-12 10:01:57,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:01:57,432 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:01:57,432 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:01:57,432 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:01:57,432 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:01:57,432 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 10:01:57,433 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:01:57,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:01:57,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:01:57,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:01:57,433 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:01:57,434 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2020-10-12 10:01:57,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:01:57,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:01:57,435 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:01:57,435 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:01:57,435 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:01:57,435 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 10:01:57,435 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:01:57,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:01:57,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:01:57,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:01:57,436 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:01:57,436 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2020-10-12 10:01:57,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:01:57,437 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:01:57,438 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:01:57,438 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:01:57,438 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:01:57,438 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 10:01:57,438 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:01:57,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:01:57,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:01:57,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:01:57,439 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:01:57,452 INFO L134 CoverageAnalysis]: Checked inductivity of 1206 backedges. 22 proven. 361 refuted. 0 times theorem prover too weak. 823 trivial. 0 not checked. [2020-10-12 10:01:57,452 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1676216606] [2020-10-12 10:01:57,452 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 10:01:57,452 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23] total 23 [2020-10-12 10:01:57,452 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [434041761] [2020-10-12 10:01:57,453 INFO L459 AbstractCegarLoop]: Interpolant automaton has 23 states [2020-10-12 10:01:57,453 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 10:01:57,453 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2020-10-12 10:01:57,453 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=233, Invalid=273, Unknown=0, NotChecked=0, Total=506 [2020-10-12 10:01:57,453 INFO L87 Difference]: Start difference. First operand 182 states and 184 transitions. Second operand 23 states. [2020-10-12 10:01:57,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 10:01:57,758 INFO L93 Difference]: Finished difference Result 325 states and 330 transitions. [2020-10-12 10:01:57,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-10-12 10:01:57,759 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 179 [2020-10-12 10:01:57,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 10:01:57,761 INFO L225 Difference]: With dead ends: 325 [2020-10-12 10:01:57,761 INFO L226 Difference]: Without dead ends: 188 [2020-10-12 10:01:57,762 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=233, Invalid=273, Unknown=0, NotChecked=0, Total=506 [2020-10-12 10:01:57,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188 states. [2020-10-12 10:01:57,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188 to 186. [2020-10-12 10:01:57,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 186 states. [2020-10-12 10:01:57,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 186 states and 188 transitions. [2020-10-12 10:01:57,774 INFO L78 Accepts]: Start accepts. Automaton has 186 states and 188 transitions. Word has length 179 [2020-10-12 10:01:57,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 10:01:57,775 INFO L479 AbstractCegarLoop]: Abstraction has 186 states and 188 transitions. [2020-10-12 10:01:57,775 INFO L480 AbstractCegarLoop]: Interpolant automaton has 23 states. [2020-10-12 10:01:57,775 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states and 188 transitions. [2020-10-12 10:01:57,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2020-10-12 10:01:57,776 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 10:01:57,776 INFO L422 BasicCegarLoop]: trace histogram [20, 20, 20, 20, 12, 12, 12, 11, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 10:01:57,777 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2020-10-12 10:01:57,777 INFO L427 AbstractCegarLoop]: === Iteration 32 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 10:01:57,777 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 10:01:57,777 INFO L82 PathProgramCache]: Analyzing trace with hash 1577865779, now seen corresponding path program 30 times [2020-10-12 10:01:57,777 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 10:01:57,778 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1050989855] [2020-10-12 10:01:57,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 10:01:57,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:01:57,803 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:01:57,841 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:02:02,830 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:02:02,830 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 213 [2020-10-12 10:02:02,831 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 10:02:02,831 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5037 [2020-10-12 10:02:02,831 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:02:02,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-12 10:02:02,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-12 10:02:02,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-10-12 10:02:02,831 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:02:03,154 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 10:02:03,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:02:03,155 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:02:03,156 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:02:03,157 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:02:03,157 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:02:03,157 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:02:03,157 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:02:03,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:02:03,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:02:03,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:02:03,157 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:02:03,158 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-12 10:02:03,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:02:03,159 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:02:03,159 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:02:03,159 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:02:03,159 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:02:03,159 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 10:02:03,160 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:02:03,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:02:03,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:02:03,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:02:03,160 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:02:03,161 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-10-12 10:02:03,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:02:03,162 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:02:03,162 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:02:03,163 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:02:03,163 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:02:03,163 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 10:02:03,163 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:02:03,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:02:03,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:02:03,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:02:03,164 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:02:03,164 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2020-10-12 10:02:03,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:02:03,165 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:02:03,166 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:02:03,166 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:02:03,166 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:02:03,166 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 10:02:03,166 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:02:03,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:02:03,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:02:03,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:02:03,166 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:02:03,167 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-10-12 10:02:03,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:02:03,168 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:02:03,168 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:02:03,168 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:02:03,168 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:02:03,169 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 10:02:03,169 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:02:03,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:02:03,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:02:03,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:02:03,169 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:02:03,170 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-10-12 10:02:03,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:02:03,170 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:02:03,171 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:02:03,171 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:02:03,171 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:02:03,171 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 10:02:03,171 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:02:03,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:02:03,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:02:03,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:02:03,172 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:02:03,172 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-10-12 10:02:03,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:02:03,173 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:02:03,173 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:02:03,173 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:02:03,173 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:02:03,173 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 10:02:03,173 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:02:03,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:02:03,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:02:03,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:02:03,174 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:02:03,174 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-10-12 10:02:03,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:02:03,175 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:02:03,175 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:02:03,176 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:02:03,176 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:02:03,176 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 10:02:03,176 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:02:03,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:02:03,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:02:03,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:02:03,176 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:02:03,177 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-10-12 10:02:03,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:02:03,177 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:02:03,178 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:02:03,178 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:02:03,178 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:02:03,178 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 10:02:03,178 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:02:03,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:02:03,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:02:03,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:02:03,179 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:02:03,179 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2020-10-12 10:02:03,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:02:03,180 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:02:03,180 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:02:03,180 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:02:03,181 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:02:03,181 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 10:02:03,181 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:02:03,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:02:03,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:02:03,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:02:03,182 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:02:03,182 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2020-10-12 10:02:03,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:02:03,183 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:02:03,184 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:02:03,184 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:02:03,184 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:02:03,184 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 10:02:03,184 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:02:03,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:02:03,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:02:03,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:02:03,184 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:02:03,185 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2020-10-12 10:02:03,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:02:03,186 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:02:03,186 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:02:03,186 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:02:03,186 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:02:03,186 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 10:02:03,187 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:02:03,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:02:03,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:02:03,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:02:03,187 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:02:03,200 INFO L134 CoverageAnalysis]: Checked inductivity of 1284 backedges. 22 proven. 400 refuted. 0 times theorem prover too weak. 862 trivial. 0 not checked. [2020-10-12 10:02:03,201 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1050989855] [2020-10-12 10:02:03,201 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 10:02:03,201 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24] total 24 [2020-10-12 10:02:03,201 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [153996560] [2020-10-12 10:02:03,202 INFO L459 AbstractCegarLoop]: Interpolant automaton has 24 states [2020-10-12 10:02:03,202 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 10:02:03,202 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2020-10-12 10:02:03,202 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=255, Invalid=297, Unknown=0, NotChecked=0, Total=552 [2020-10-12 10:02:03,202 INFO L87 Difference]: Start difference. First operand 186 states and 188 transitions. Second operand 24 states. [2020-10-12 10:02:03,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 10:02:03,501 INFO L93 Difference]: Finished difference Result 331 states and 336 transitions. [2020-10-12 10:02:03,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-10-12 10:02:03,501 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 183 [2020-10-12 10:02:03,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 10:02:03,503 INFO L225 Difference]: With dead ends: 331 [2020-10-12 10:02:03,503 INFO L226 Difference]: Without dead ends: 192 [2020-10-12 10:02:03,504 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=255, Invalid=297, Unknown=0, NotChecked=0, Total=552 [2020-10-12 10:02:03,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192 states. [2020-10-12 10:02:03,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192 to 190. [2020-10-12 10:02:03,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 190 states. [2020-10-12 10:02:03,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 192 transitions. [2020-10-12 10:02:03,516 INFO L78 Accepts]: Start accepts. Automaton has 190 states and 192 transitions. Word has length 183 [2020-10-12 10:02:03,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 10:02:03,516 INFO L479 AbstractCegarLoop]: Abstraction has 190 states and 192 transitions. [2020-10-12 10:02:03,516 INFO L480 AbstractCegarLoop]: Interpolant automaton has 24 states. [2020-10-12 10:02:03,517 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 192 transitions. [2020-10-12 10:02:03,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2020-10-12 10:02:03,518 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 10:02:03,518 INFO L422 BasicCegarLoop]: trace histogram [21, 21, 21, 21, 12, 12, 12, 11, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 10:02:03,518 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2020-10-12 10:02:03,518 INFO L427 AbstractCegarLoop]: === Iteration 33 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 10:02:03,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 10:02:03,519 INFO L82 PathProgramCache]: Analyzing trace with hash 150876847, now seen corresponding path program 31 times [2020-10-12 10:02:03,519 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 10:02:03,519 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1516520600] [2020-10-12 10:02:03,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 10:02:03,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:02:03,539 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:02:03,572 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:02:08,549 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:02:08,550 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 217 [2020-10-12 10:02:08,550 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 10:02:08,550 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5016 [2020-10-12 10:02:08,550 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:02:08,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-10-12 10:02:08,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 55 [2020-10-12 10:02:08,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-10-12 10:02:08,551 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:02:08,919 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 10:02:08,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:02:08,921 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:02:08,922 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:02:08,922 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:02:08,922 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:02:08,922 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:02:08,922 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:02:08,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:02:08,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:02:08,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:02:08,923 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:02:08,923 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-12 10:02:08,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:02:08,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:02:08,924 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:02:08,924 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:02:08,925 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:02:08,925 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 10:02:08,925 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:02:08,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:02:08,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:02:08,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:02:08,925 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:02:08,926 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2020-10-12 10:02:08,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:02:08,926 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:02:08,927 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:02:08,927 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:02:08,927 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:02:08,927 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 10:02:08,928 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:02:08,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:02:08,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:02:08,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:02:08,928 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:02:08,932 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2020-10-12 10:02:08,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:02:08,933 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:02:08,934 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:02:08,934 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:02:08,935 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:02:08,935 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 10:02:08,935 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:02:08,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:02:08,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:02:08,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:02:08,935 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:02:08,936 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2020-10-12 10:02:08,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:02:08,937 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:02:08,938 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:02:08,938 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:02:08,938 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:02:08,938 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 10:02:08,938 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:02:08,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:02:08,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:02:08,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:02:08,939 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:02:08,940 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-10-12 10:02:08,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:02:08,941 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:02:08,941 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:02:08,941 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:02:08,942 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:02:08,942 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 10:02:08,942 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:02:08,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:02:08,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:02:08,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:02:08,942 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:02:08,943 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-12 10:02:08,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:02:08,944 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:02:08,945 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:02:08,945 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:02:08,945 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:02:08,946 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:02:08,946 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:02:08,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:02:08,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:02:08,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:02:08,947 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:02:08,947 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2020-10-12 10:02:08,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:02:08,948 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:02:08,949 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:02:08,949 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:02:08,949 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:02:08,950 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 10:02:08,950 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:02:08,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:02:08,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:02:08,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:02:08,951 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:02:08,951 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2020-10-12 10:02:08,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:02:08,952 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:02:08,953 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:02:08,953 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:02:08,953 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:02:08,953 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 10:02:08,954 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:02:08,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:02:08,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:02:08,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:02:08,954 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:02:08,955 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2020-10-12 10:02:08,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:02:08,956 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:02:08,957 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:02:08,957 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:02:08,957 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:02:08,958 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 10:02:08,958 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:02:08,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:02:08,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:02:08,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:02:08,958 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:02:08,959 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2020-10-12 10:02:08,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:02:08,960 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:02:08,961 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:02:08,961 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:02:08,961 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:02:08,961 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 10:02:08,961 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:02:08,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:02:08,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:02:08,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:02:08,962 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:02:08,963 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2020-10-12 10:02:08,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:02:08,964 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:02:08,964 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:02:08,965 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:02:08,965 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:02:08,965 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 10:02:08,965 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:02:08,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:02:08,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:02:08,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:02:08,966 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:02:08,987 INFO L134 CoverageAnalysis]: Checked inductivity of 1366 backedges. 22 proven. 441 refuted. 0 times theorem prover too weak. 903 trivial. 0 not checked. [2020-10-12 10:02:08,987 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1516520600] [2020-10-12 10:02:08,987 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 10:02:08,988 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25] total 25 [2020-10-12 10:02:08,988 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [488055031] [2020-10-12 10:02:08,989 INFO L459 AbstractCegarLoop]: Interpolant automaton has 25 states [2020-10-12 10:02:08,989 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 10:02:08,989 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2020-10-12 10:02:08,990 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=278, Invalid=322, Unknown=0, NotChecked=0, Total=600 [2020-10-12 10:02:08,990 INFO L87 Difference]: Start difference. First operand 190 states and 192 transitions. Second operand 25 states. [2020-10-12 10:02:09,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 10:02:09,261 INFO L93 Difference]: Finished difference Result 337 states and 342 transitions. [2020-10-12 10:02:09,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-10-12 10:02:09,262 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 187 [2020-10-12 10:02:09,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 10:02:09,263 INFO L225 Difference]: With dead ends: 337 [2020-10-12 10:02:09,263 INFO L226 Difference]: Without dead ends: 196 [2020-10-12 10:02:09,264 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=278, Invalid=322, Unknown=0, NotChecked=0, Total=600 [2020-10-12 10:02:09,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196 states. [2020-10-12 10:02:09,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196 to 194. [2020-10-12 10:02:09,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 194 states. [2020-10-12 10:02:09,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 196 transitions. [2020-10-12 10:02:09,281 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 196 transitions. Word has length 187 [2020-10-12 10:02:09,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 10:02:09,281 INFO L479 AbstractCegarLoop]: Abstraction has 194 states and 196 transitions. [2020-10-12 10:02:09,282 INFO L480 AbstractCegarLoop]: Interpolant automaton has 25 states. [2020-10-12 10:02:09,282 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 196 transitions. [2020-10-12 10:02:09,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2020-10-12 10:02:09,285 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 10:02:09,285 INFO L422 BasicCegarLoop]: trace histogram [22, 22, 22, 22, 12, 12, 12, 11, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 10:02:09,285 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2020-10-12 10:02:09,286 INFO L427 AbstractCegarLoop]: === Iteration 34 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 10:02:09,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 10:02:09,286 INFO L82 PathProgramCache]: Analyzing trace with hash -1042520789, now seen corresponding path program 32 times [2020-10-12 10:02:09,286 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 10:02:09,287 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1324698838] [2020-10-12 10:02:09,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 10:02:09,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:02:09,318 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:02:09,389 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:02:14,346 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:02:14,347 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 221 [2020-10-12 10:02:14,347 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 10:02:14,347 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5038 [2020-10-12 10:02:14,347 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:02:14,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 24 [2020-10-12 10:02:14,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-12 10:02:14,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-10-12 10:02:14,347 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:02:14,795 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 10:02:14,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:02:14,797 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:02:14,798 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:02:14,798 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:02:14,798 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:02:14,798 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:02:14,799 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:02:14,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:02:14,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:02:14,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:02:14,799 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:02:14,800 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-10-12 10:02:14,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:02:14,800 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:02:14,801 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:02:14,801 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:02:14,801 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:02:14,801 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 10:02:14,801 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:02:14,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:02:14,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:02:14,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:02:14,802 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:02:14,802 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2020-10-12 10:02:14,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:02:14,803 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:02:14,803 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:02:14,803 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:02:14,803 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:02:14,804 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 10:02:14,804 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:02:14,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:02:14,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:02:14,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:02:14,804 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:02:14,805 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-10-12 10:02:14,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:02:14,805 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:02:14,806 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:02:14,806 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:02:14,806 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:02:14,806 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 10:02:14,806 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:02:14,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:02:14,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:02:14,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:02:14,807 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:02:14,807 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-10-12 10:02:14,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:02:14,808 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:02:14,808 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:02:14,808 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:02:14,809 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:02:14,809 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 10:02:14,809 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:02:14,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:02:14,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:02:14,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:02:14,809 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:02:14,810 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-10-12 10:02:14,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:02:14,810 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:02:14,811 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:02:14,811 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:02:14,811 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:02:14,811 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 10:02:14,811 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:02:14,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:02:14,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:02:14,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:02:14,812 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:02:14,812 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-10-12 10:02:14,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:02:14,813 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:02:14,813 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:02:14,813 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:02:14,813 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:02:14,813 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 10:02:14,813 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:02:14,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:02:14,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:02:14,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:02:14,814 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:02:14,814 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-10-12 10:02:14,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:02:14,815 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:02:14,815 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:02:14,815 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:02:14,815 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:02:14,816 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 10:02:14,816 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:02:14,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:02:14,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:02:14,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:02:14,816 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:02:14,817 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2020-10-12 10:02:14,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:02:14,817 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:02:14,818 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:02:14,818 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:02:14,818 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:02:14,818 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 10:02:14,818 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:02:14,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:02:14,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:02:14,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:02:14,819 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:02:14,819 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2020-10-12 10:02:14,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:02:14,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:02:14,820 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:02:14,820 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:02:14,820 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:02:14,820 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 10:02:14,821 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:02:14,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:02:14,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:02:14,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:02:14,821 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:02:14,821 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2020-10-12 10:02:14,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:02:14,822 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:02:14,823 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:02:14,823 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:02:14,823 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:02:14,823 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 10:02:14,823 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:02:14,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:02:14,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:02:14,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:02:14,823 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:02:14,824 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2020-10-12 10:02:14,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:02:14,825 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:02:14,825 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:02:14,825 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:02:14,825 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:02:14,825 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 10:02:14,825 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:02:14,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:02:14,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:02:14,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:02:14,826 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:02:14,841 INFO L134 CoverageAnalysis]: Checked inductivity of 1452 backedges. 22 proven. 484 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2020-10-12 10:02:14,842 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1324698838] [2020-10-12 10:02:14,842 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 10:02:14,842 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26] total 26 [2020-10-12 10:02:14,842 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [98868908] [2020-10-12 10:02:14,842 INFO L459 AbstractCegarLoop]: Interpolant automaton has 26 states [2020-10-12 10:02:14,842 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 10:02:14,843 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2020-10-12 10:02:14,843 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=302, Invalid=348, Unknown=0, NotChecked=0, Total=650 [2020-10-12 10:02:14,843 INFO L87 Difference]: Start difference. First operand 194 states and 196 transitions. Second operand 26 states. [2020-10-12 10:02:15,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 10:02:15,162 INFO L93 Difference]: Finished difference Result 343 states and 348 transitions. [2020-10-12 10:02:15,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-10-12 10:02:15,163 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 191 [2020-10-12 10:02:15,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 10:02:15,164 INFO L225 Difference]: With dead ends: 343 [2020-10-12 10:02:15,164 INFO L226 Difference]: Without dead ends: 200 [2020-10-12 10:02:15,165 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=302, Invalid=348, Unknown=0, NotChecked=0, Total=650 [2020-10-12 10:02:15,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 200 states. [2020-10-12 10:02:15,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 200 to 198. [2020-10-12 10:02:15,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 198 states. [2020-10-12 10:02:15,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 200 transitions. [2020-10-12 10:02:15,178 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 200 transitions. Word has length 191 [2020-10-12 10:02:15,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 10:02:15,179 INFO L479 AbstractCegarLoop]: Abstraction has 198 states and 200 transitions. [2020-10-12 10:02:15,179 INFO L480 AbstractCegarLoop]: Interpolant automaton has 26 states. [2020-10-12 10:02:15,179 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 200 transitions. [2020-10-12 10:02:15,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2020-10-12 10:02:15,180 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 10:02:15,180 INFO L422 BasicCegarLoop]: trace histogram [23, 23, 23, 23, 12, 12, 12, 11, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 10:02:15,181 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2020-10-12 10:02:15,181 INFO L427 AbstractCegarLoop]: === Iteration 35 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 10:02:15,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 10:02:15,181 INFO L82 PathProgramCache]: Analyzing trace with hash -1749947993, now seen corresponding path program 33 times [2020-10-12 10:02:15,181 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 10:02:15,182 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [511809549] [2020-10-12 10:02:15,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 10:02:15,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:02:15,210 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:02:15,285 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:02:20,246 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:02:20,247 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 225 [2020-10-12 10:02:20,247 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 10:02:20,247 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5047 [2020-10-12 10:02:20,247 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:02:20,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-10-12 10:02:20,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-12 10:02:20,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-10-12 10:02:20,247 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:02:20,726 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 10:02:20,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:02:20,727 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:02:20,728 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:02:20,728 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:02:20,728 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:02:20,728 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 10:02:20,728 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:02:20,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:02:20,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:02:20,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:02:20,729 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:02:20,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2020-10-12 10:02:20,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:02:20,732 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:02:20,733 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:02:20,733 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:02:20,733 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:02:20,733 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 10:02:20,733 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:02:20,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:02:20,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:02:20,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:02:20,734 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:02:20,734 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2020-10-12 10:02:20,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:02:20,735 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:02:20,735 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:02:20,736 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:02:20,736 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:02:20,736 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 10:02:20,736 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:02:20,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:02:20,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:02:20,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:02:20,736 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:02:20,737 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2020-10-12 10:02:20,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:02:20,738 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:02:20,738 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:02:20,738 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:02:20,739 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:02:20,739 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 10:02:20,739 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:02:20,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:02:20,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:02:20,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:02:20,739 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:02:20,740 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-10-12 10:02:20,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:02:20,740 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:02:20,741 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:02:20,741 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:02:20,741 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:02:20,741 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 10:02:20,742 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:02:20,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:02:20,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:02:20,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:02:20,742 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:02:20,742 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-12 10:02:20,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:02:20,743 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:02:20,744 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:02:20,744 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:02:20,744 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:02:20,744 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 10:02:20,744 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:02:20,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:02:20,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:02:20,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:02:20,744 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:02:20,745 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2020-10-12 10:02:20,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:02:20,745 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:02:20,746 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:02:20,746 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:02:20,746 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:02:20,746 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 10:02:20,746 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:02:20,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:02:20,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:02:20,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:02:20,747 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:02:20,747 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2020-10-12 10:02:20,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:02:20,748 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:02:20,749 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:02:20,749 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:02:20,749 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:02:20,749 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 10:02:20,749 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:02:20,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:02:20,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:02:20,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:02:20,750 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:02:20,750 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2020-10-12 10:02:20,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:02:20,751 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:02:20,752 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:02:20,752 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:02:20,752 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:02:20,752 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 10:02:20,752 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:02:20,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:02:20,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:02:20,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:02:20,753 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:02:20,753 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2020-10-12 10:02:20,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:02:20,754 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:02:20,754 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:02:20,754 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:02:20,754 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:02:20,755 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 10:02:20,755 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:02:20,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:02:20,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:02:20,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:02:20,755 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:02:20,756 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2020-10-12 10:02:20,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:02:20,756 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:02:20,757 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:02:20,757 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:02:20,757 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:02:20,757 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 10:02:20,757 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:02:20,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:02:20,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:02:20,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:02:20,758 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:02:20,758 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2020-10-12 10:02:20,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:02:20,759 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:02:20,759 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:02:20,760 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:02:20,760 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:02:20,760 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 10:02:20,760 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:02:20,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:02:20,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:02:20,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:02:20,760 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:02:20,776 INFO L134 CoverageAnalysis]: Checked inductivity of 1542 backedges. 22 proven. 529 refuted. 0 times theorem prover too weak. 991 trivial. 0 not checked. [2020-10-12 10:02:20,776 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [511809549] [2020-10-12 10:02:20,776 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 10:02:20,776 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27] total 27 [2020-10-12 10:02:20,776 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1006493656] [2020-10-12 10:02:20,777 INFO L459 AbstractCegarLoop]: Interpolant automaton has 27 states [2020-10-12 10:02:20,777 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 10:02:20,777 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2020-10-12 10:02:20,777 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=327, Invalid=375, Unknown=0, NotChecked=0, Total=702 [2020-10-12 10:02:20,778 INFO L87 Difference]: Start difference. First operand 198 states and 200 transitions. Second operand 27 states. [2020-10-12 10:02:21,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 10:02:21,037 INFO L93 Difference]: Finished difference Result 349 states and 354 transitions. [2020-10-12 10:02:21,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2020-10-12 10:02:21,037 INFO L78 Accepts]: Start accepts. Automaton has 27 states. Word has length 195 [2020-10-12 10:02:21,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 10:02:21,039 INFO L225 Difference]: With dead ends: 349 [2020-10-12 10:02:21,039 INFO L226 Difference]: Without dead ends: 204 [2020-10-12 10:02:21,040 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=327, Invalid=375, Unknown=0, NotChecked=0, Total=702 [2020-10-12 10:02:21,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 204 states. [2020-10-12 10:02:21,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 204 to 202. [2020-10-12 10:02:21,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 202 states. [2020-10-12 10:02:21,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 204 transitions. [2020-10-12 10:02:21,052 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 204 transitions. Word has length 195 [2020-10-12 10:02:21,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 10:02:21,052 INFO L479 AbstractCegarLoop]: Abstraction has 202 states and 204 transitions. [2020-10-12 10:02:21,052 INFO L480 AbstractCegarLoop]: Interpolant automaton has 27 states. [2020-10-12 10:02:21,052 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 204 transitions. [2020-10-12 10:02:21,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2020-10-12 10:02:21,054 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 10:02:21,054 INFO L422 BasicCegarLoop]: trace histogram [24, 24, 24, 24, 12, 12, 12, 11, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 10:02:21,054 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2020-10-12 10:02:21,054 INFO L427 AbstractCegarLoop]: === Iteration 36 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 10:02:21,054 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 10:02:21,054 INFO L82 PathProgramCache]: Analyzing trace with hash -888553437, now seen corresponding path program 34 times [2020-10-12 10:02:21,055 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 10:02:21,055 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [854898219] [2020-10-12 10:02:21,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 10:02:21,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:02:21,073 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:02:21,110 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:02:26,108 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:02:26,108 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 229 [2020-10-12 10:02:26,108 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 10:02:26,109 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5042 [2020-10-12 10:02:26,109 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:02:26,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-10-12 10:02:26,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 61 [2020-10-12 10:02:26,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-10-12 10:02:26,109 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:02:26,571 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 10:02:26,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:02:26,573 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:02:26,574 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:02:26,574 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:02:26,574 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:02:26,574 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:02:26,574 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:02:26,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:02:26,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:02:26,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:02:26,575 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:02:26,576 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2020-10-12 10:02:26,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:02:26,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:02:26,577 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:02:26,577 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:02:26,577 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:02:26,577 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 10:02:26,577 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:02:26,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:02:26,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:02:26,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:02:26,578 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:02:26,578 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-10-12 10:02:26,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:02:26,579 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:02:26,579 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:02:26,579 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:02:26,579 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:02:26,580 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 10:02:26,580 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:02:26,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:02:26,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:02:26,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:02:26,580 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:02:26,581 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-10-12 10:02:26,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:02:26,581 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:02:26,582 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:02:26,582 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:02:26,582 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:02:26,582 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 10:02:26,582 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:02:26,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:02:26,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:02:26,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:02:26,583 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:02:26,583 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-10-12 10:02:26,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:02:26,583 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:02:26,584 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:02:26,584 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:02:26,584 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:02:26,584 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 10:02:26,584 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:02:26,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:02:26,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:02:26,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:02:26,585 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:02:26,585 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-10-12 10:02:26,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:02:26,586 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:02:26,586 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:02:26,586 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:02:26,586 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:02:26,586 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 10:02:26,587 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:02:26,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:02:26,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:02:26,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:02:26,587 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:02:26,587 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-10-12 10:02:26,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:02:26,588 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:02:26,588 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:02:26,589 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:02:26,589 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:02:26,589 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 10:02:26,589 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:02:26,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:02:26,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:02:26,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:02:26,589 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:02:26,590 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2020-10-12 10:02:26,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:02:26,590 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:02:26,591 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:02:26,591 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:02:26,591 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:02:26,592 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 10:02:26,592 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:02:26,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:02:26,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:02:26,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:02:26,592 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:02:26,593 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2020-10-12 10:02:26,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:02:26,593 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:02:26,594 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:02:26,594 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:02:26,594 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:02:26,595 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 10:02:26,595 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:02:26,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:02:26,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:02:26,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:02:26,596 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:02:26,596 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2020-10-12 10:02:26,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:02:26,597 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:02:26,597 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:02:26,598 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:02:26,598 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:02:26,598 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 10:02:26,598 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:02:26,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:02:26,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:02:26,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:02:26,598 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:02:26,599 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2020-10-12 10:02:26,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:02:26,599 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:02:26,600 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:02:26,600 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:02:26,600 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:02:26,600 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 10:02:26,600 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:02:26,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:02:26,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:02:26,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:02:26,601 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:02:26,601 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2020-10-12 10:02:26,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:02:26,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:02:26,603 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:02:26,603 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:02:26,603 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:02:26,603 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:02:26,604 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:02:26,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:02:26,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:02:26,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:02:26,604 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:02:26,620 INFO L134 CoverageAnalysis]: Checked inductivity of 1636 backedges. 22 proven. 576 refuted. 0 times theorem prover too weak. 1038 trivial. 0 not checked. [2020-10-12 10:02:26,621 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [854898219] [2020-10-12 10:02:26,621 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 10:02:26,621 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28] total 28 [2020-10-12 10:02:26,621 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1037984374] [2020-10-12 10:02:26,622 INFO L459 AbstractCegarLoop]: Interpolant automaton has 28 states [2020-10-12 10:02:26,622 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 10:02:26,622 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2020-10-12 10:02:26,623 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=353, Invalid=403, Unknown=0, NotChecked=0, Total=756 [2020-10-12 10:02:26,623 INFO L87 Difference]: Start difference. First operand 202 states and 204 transitions. Second operand 28 states. [2020-10-12 10:02:26,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 10:02:26,994 INFO L93 Difference]: Finished difference Result 355 states and 360 transitions. [2020-10-12 10:02:26,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2020-10-12 10:02:26,994 INFO L78 Accepts]: Start accepts. Automaton has 28 states. Word has length 199 [2020-10-12 10:02:26,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 10:02:26,996 INFO L225 Difference]: With dead ends: 355 [2020-10-12 10:02:26,996 INFO L226 Difference]: Without dead ends: 208 [2020-10-12 10:02:26,997 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=353, Invalid=403, Unknown=0, NotChecked=0, Total=756 [2020-10-12 10:02:26,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 208 states. [2020-10-12 10:02:27,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 208 to 206. [2020-10-12 10:02:27,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 206 states. [2020-10-12 10:02:27,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 206 states and 208 transitions. [2020-10-12 10:02:27,010 INFO L78 Accepts]: Start accepts. Automaton has 206 states and 208 transitions. Word has length 199 [2020-10-12 10:02:27,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 10:02:27,011 INFO L479 AbstractCegarLoop]: Abstraction has 206 states and 208 transitions. [2020-10-12 10:02:27,011 INFO L480 AbstractCegarLoop]: Interpolant automaton has 28 states. [2020-10-12 10:02:27,011 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states and 208 transitions. [2020-10-12 10:02:27,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2020-10-12 10:02:27,012 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 10:02:27,013 INFO L422 BasicCegarLoop]: trace histogram [25, 25, 25, 25, 12, 12, 12, 11, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 10:02:27,013 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2020-10-12 10:02:27,013 INFO L427 AbstractCegarLoop]: === Iteration 37 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 10:02:27,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 10:02:27,013 INFO L82 PathProgramCache]: Analyzing trace with hash 1307502751, now seen corresponding path program 35 times [2020-10-12 10:02:27,013 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 10:02:27,014 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [11465054] [2020-10-12 10:02:27,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 10:02:27,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:02:27,044 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:02:27,120 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:02:32,032 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:02:32,033 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 233 [2020-10-12 10:02:32,033 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 10:02:32,033 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-12 10:02:32,033 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:02:32,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-10-12 10:02:32,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-12 10:02:32,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-10-12 10:02:32,033 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:02:32,550 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 10:02:32,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:02:32,552 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:02:32,553 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:02:32,553 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:02:32,553 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:02:32,554 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:02:32,555 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:02:32,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:02:32,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:02:32,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:02:32,555 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:02:32,556 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2020-10-12 10:02:32,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:02:32,558 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:02:32,558 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:02:32,559 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:02:32,559 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:02:32,559 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:02:32,559 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:02:32,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:02:32,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:02:32,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:02:32,560 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:02:32,561 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2020-10-12 10:02:32,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:02:32,562 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:02:32,563 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:02:32,563 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:02:32,563 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:02:32,564 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:02:32,564 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:02:32,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:02:32,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:02:32,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:02:32,565 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:02:32,566 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-10-12 10:02:32,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:02:32,567 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:02:32,568 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:02:32,568 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:02:32,569 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:02:32,569 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:02:32,569 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:02:32,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:02:32,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:02:32,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:02:32,570 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:02:32,571 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-12 10:02:32,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:02:32,572 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:02:32,573 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:02:32,573 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:02:32,573 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:02:32,573 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:02:32,573 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:02:32,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:02:32,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:02:32,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:02:32,574 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:02:32,574 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2020-10-12 10:02:32,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:02:32,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:02:32,576 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:02:32,577 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:02:32,577 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:02:32,577 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:02:32,577 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:02:32,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:02:32,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:02:32,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:02:32,578 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:02:32,579 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2020-10-12 10:02:32,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:02:32,580 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:02:32,581 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:02:32,581 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:02:32,582 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:02:32,582 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:02:32,582 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:02:32,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:02:32,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:02:32,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:02:32,583 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:02:32,584 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2020-10-12 10:02:32,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:02:32,585 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:02:32,586 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:02:32,586 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:02:32,587 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:02:32,587 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:02:32,587 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:02:32,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:02:32,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:02:32,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:02:32,605 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 17 [2020-10-12 10:02:32,606 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2020-10-12 10:02:32,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:02:32,607 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:02:32,608 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:02:32,608 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:02:32,608 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:02:32,608 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 10:02:32,609 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:02:32,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:02:32,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:02:32,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:02:32,609 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:02:32,610 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2020-10-12 10:02:32,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:02:32,611 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:02:32,612 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:02:32,612 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:02:32,612 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:02:32,613 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:02:32,613 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:02:32,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:02:32,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:02:32,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:02:32,613 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:02:32,614 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2020-10-12 10:02:32,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:02:32,616 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:02:32,617 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:02:32,617 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:02:32,617 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:02:32,618 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 10:02:32,618 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:02:32,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:02:32,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:02:32,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:02:32,618 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:02:32,619 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2020-10-12 10:02:32,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:02:32,620 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:02:32,621 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:02:32,621 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:02:32,621 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:02:32,621 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 10:02:32,622 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:02:32,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:02:32,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:02:32,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:02:32,622 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:02:32,649 INFO L134 CoverageAnalysis]: Checked inductivity of 1734 backedges. 22 proven. 625 refuted. 0 times theorem prover too weak. 1087 trivial. 0 not checked. [2020-10-12 10:02:32,651 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [11465054] [2020-10-12 10:02:32,651 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 10:02:32,651 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [29] total 29 [2020-10-12 10:02:32,651 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1673703324] [2020-10-12 10:02:32,652 INFO L459 AbstractCegarLoop]: Interpolant automaton has 29 states [2020-10-12 10:02:32,653 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 10:02:32,653 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2020-10-12 10:02:32,653 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=380, Invalid=432, Unknown=0, NotChecked=0, Total=812 [2020-10-12 10:02:32,653 INFO L87 Difference]: Start difference. First operand 206 states and 208 transitions. Second operand 29 states. [2020-10-12 10:02:33,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 10:02:33,014 INFO L93 Difference]: Finished difference Result 361 states and 366 transitions. [2020-10-12 10:02:33,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-12 10:02:33,015 INFO L78 Accepts]: Start accepts. Automaton has 29 states. Word has length 203 [2020-10-12 10:02:33,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 10:02:33,017 INFO L225 Difference]: With dead ends: 361 [2020-10-12 10:02:33,017 INFO L226 Difference]: Without dead ends: 212 [2020-10-12 10:02:33,018 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=380, Invalid=432, Unknown=0, NotChecked=0, Total=812 [2020-10-12 10:02:33,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212 states. [2020-10-12 10:02:33,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212 to 210. [2020-10-12 10:02:33,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 210 states. [2020-10-12 10:02:33,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 212 transitions. [2020-10-12 10:02:33,032 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 212 transitions. Word has length 203 [2020-10-12 10:02:33,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 10:02:33,032 INFO L479 AbstractCegarLoop]: Abstraction has 210 states and 212 transitions. [2020-10-12 10:02:33,032 INFO L480 AbstractCegarLoop]: Interpolant automaton has 29 states. [2020-10-12 10:02:33,032 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 212 transitions. [2020-10-12 10:02:33,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2020-10-12 10:02:33,034 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 10:02:33,034 INFO L422 BasicCegarLoop]: trace histogram [26, 26, 26, 26, 12, 12, 12, 11, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 10:02:33,034 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2020-10-12 10:02:33,034 INFO L427 AbstractCegarLoop]: === Iteration 38 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 10:02:33,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 10:02:33,035 INFO L82 PathProgramCache]: Analyzing trace with hash 1139565339, now seen corresponding path program 36 times [2020-10-12 10:02:33,035 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 10:02:33,035 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1702123809] [2020-10-12 10:02:33,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 10:02:33,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:02:33,084 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:02:33,144 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:02:38,148 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:02:38,149 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 237 [2020-10-12 10:02:38,149 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 10:02:38,149 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5085 [2020-10-12 10:02:38,149 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:02:38,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 28 [2020-10-12 10:02:38,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-12 10:02:38,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-10-12 10:02:38,150 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:02:38,700 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 10:02:38,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:02:38,702 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:02:38,704 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:02:38,704 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:02:38,704 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:02:38,704 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:02:38,705 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:02:38,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:02:38,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:02:38,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:02:38,705 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:02:38,706 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-10-12 10:02:38,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:02:38,707 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:02:38,708 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:02:38,708 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:02:38,708 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:02:38,708 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 10:02:38,708 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:02:38,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:02:38,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:02:38,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:02:38,709 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:02:38,710 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-10-12 10:02:38,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:02:38,711 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:02:38,711 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:02:38,712 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:02:38,712 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:02:38,712 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 10:02:38,712 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:02:38,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:02:38,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:02:38,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:02:38,713 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:02:38,714 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-10-12 10:02:38,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:02:38,715 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:02:38,716 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:02:38,716 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:02:38,717 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:02:38,717 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:02:38,717 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:02:38,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:02:38,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:02:38,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:02:38,718 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 10:02:38,719 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-10-12 10:02:38,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:02:38,720 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:02:38,721 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:02:38,722 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:02:38,722 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:02:38,722 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:02:38,722 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:02:38,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:02:38,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:02:38,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:02:38,723 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:02:38,724 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-10-12 10:02:38,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:02:38,725 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:02:38,725 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:02:38,726 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:02:38,726 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:02:38,726 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 10:02:38,726 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:02:38,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:02:38,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:02:38,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:02:38,728 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 10:02:38,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2020-10-12 10:02:38,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:02:38,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:02:38,731 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:02:38,731 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:02:38,731 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:02:38,732 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:02:38,732 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:02:38,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:02:38,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:02:38,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:02:38,733 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 10:02:38,734 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2020-10-12 10:02:38,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:02:38,735 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:02:38,736 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:02:38,736 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:02:38,736 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:02:38,736 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 10:02:38,736 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:02:38,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:02:38,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:02:38,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:02:38,737 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:02:38,738 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2020-10-12 10:02:38,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:02:38,739 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:02:38,740 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:02:38,740 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:02:38,740 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:02:38,740 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 10:02:38,740 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:02:38,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:02:38,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:02:38,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:02:38,741 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:02:38,742 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2020-10-12 10:02:38,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:02:38,743 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:02:38,743 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:02:38,744 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:02:38,744 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:02:38,744 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 10:02:38,744 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:02:38,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:02:38,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:02:38,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:02:38,745 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:02:38,745 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2020-10-12 10:02:38,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:02:38,746 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:02:38,747 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:02:38,748 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:02:38,748 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:02:38,748 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:02:38,748 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:02:38,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:02:38,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:02:38,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:02:38,750 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 10:02:38,751 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2020-10-12 10:02:38,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:02:38,752 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:02:38,753 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:02:38,753 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:02:38,754 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:02:38,754 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:02:38,754 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:02:38,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:02:38,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:02:38,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:02:38,755 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:02:38,786 INFO L134 CoverageAnalysis]: Checked inductivity of 1836 backedges. 22 proven. 676 refuted. 0 times theorem prover too weak. 1138 trivial. 0 not checked. [2020-10-12 10:02:38,787 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1702123809] [2020-10-12 10:02:38,787 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 10:02:38,787 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [30] total 30 [2020-10-12 10:02:38,787 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [855833148] [2020-10-12 10:02:38,792 INFO L459 AbstractCegarLoop]: Interpolant automaton has 30 states [2020-10-12 10:02:38,792 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 10:02:38,792 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2020-10-12 10:02:38,793 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=408, Invalid=462, Unknown=0, NotChecked=0, Total=870 [2020-10-12 10:02:38,793 INFO L87 Difference]: Start difference. First operand 210 states and 212 transitions. Second operand 30 states. [2020-10-12 10:02:39,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 10:02:39,158 INFO L93 Difference]: Finished difference Result 367 states and 372 transitions. [2020-10-12 10:02:39,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2020-10-12 10:02:39,159 INFO L78 Accepts]: Start accepts. Automaton has 30 states. Word has length 207 [2020-10-12 10:02:39,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 10:02:39,161 INFO L225 Difference]: With dead ends: 367 [2020-10-12 10:02:39,161 INFO L226 Difference]: Without dead ends: 216 [2020-10-12 10:02:39,162 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=408, Invalid=462, Unknown=0, NotChecked=0, Total=870 [2020-10-12 10:02:39,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 216 states. [2020-10-12 10:02:39,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 216 to 214. [2020-10-12 10:02:39,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 214 states. [2020-10-12 10:02:39,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 216 transitions. [2020-10-12 10:02:39,176 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 216 transitions. Word has length 207 [2020-10-12 10:02:39,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 10:02:39,176 INFO L479 AbstractCegarLoop]: Abstraction has 214 states and 216 transitions. [2020-10-12 10:02:39,176 INFO L480 AbstractCegarLoop]: Interpolant automaton has 30 states. [2020-10-12 10:02:39,176 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 216 transitions. [2020-10-12 10:02:39,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2020-10-12 10:02:39,178 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 10:02:39,178 INFO L422 BasicCegarLoop]: trace histogram [27, 27, 27, 27, 12, 12, 12, 11, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 10:02:39,178 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2020-10-12 10:02:39,178 INFO L427 AbstractCegarLoop]: === Iteration 39 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 10:02:39,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 10:02:39,179 INFO L82 PathProgramCache]: Analyzing trace with hash -2113065065, now seen corresponding path program 37 times [2020-10-12 10:02:39,179 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 10:02:39,179 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1457465556] [2020-10-12 10:02:39,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 10:02:39,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:02:39,225 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:02:39,307 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:02:44,275 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:02:44,275 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 241 [2020-10-12 10:02:44,275 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 10:02:44,275 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5069 [2020-10-12 10:02:44,275 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:02:44,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-10-12 10:02:44,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 67 [2020-10-12 10:02:44,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 56 [2020-10-12 10:02:44,276 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:02:44,864 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 10:02:44,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:02:44,866 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:02:44,867 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:02:44,868 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:02:44,868 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:02:44,868 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:02:44,868 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:02:44,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:02:44,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:02:44,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:02:44,870 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 10:02:44,871 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2020-10-12 10:02:44,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:02:44,872 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:02:44,873 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:02:44,873 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:02:44,873 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:02:44,874 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:02:44,874 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:02:44,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:02:44,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:02:44,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:02:44,875 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:02:44,875 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-10-12 10:02:44,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:02:44,876 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:02:44,877 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:02:44,877 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:02:44,877 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:02:44,878 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 10:02:44,878 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:02:44,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:02:44,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:02:44,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:02:44,878 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:02:44,879 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-12 10:02:44,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:02:44,880 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:02:44,881 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:02:44,882 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:02:44,882 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:02:44,882 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:02:44,883 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:02:44,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:02:44,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:02:44,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:02:44,884 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 10:02:44,885 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2020-10-12 10:02:44,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:02:44,886 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:02:44,887 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:02:44,887 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:02:44,887 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:02:44,888 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:02:44,888 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:02:44,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:02:44,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:02:44,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:02:44,889 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 10:02:44,890 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2020-10-12 10:02:44,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:02:44,891 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:02:44,894 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:02:44,894 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:02:44,894 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:02:44,894 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 10:02:44,895 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:02:44,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:02:44,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:02:44,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:02:44,895 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:02:44,896 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2020-10-12 10:02:44,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:02:44,897 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:02:44,898 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:02:44,898 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:02:44,898 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:02:44,898 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 10:02:44,899 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:02:44,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:02:44,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:02:44,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:02:44,899 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:02:44,900 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2020-10-12 10:02:44,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:02:44,901 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:02:44,902 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:02:44,902 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:02:44,902 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:02:44,902 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 10:02:44,903 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:02:44,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:02:44,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:02:44,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:02:44,903 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:02:44,904 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2020-10-12 10:02:44,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:02:44,905 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:02:44,906 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:02:44,906 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:02:44,906 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:02:44,906 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 10:02:44,906 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:02:44,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:02:44,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:02:44,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:02:44,907 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:02:44,908 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2020-10-12 10:02:44,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:02:44,909 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:02:44,910 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:02:44,910 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:02:44,910 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:02:44,910 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 10:02:44,910 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:02:44,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:02:44,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:02:44,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:02:44,911 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:02:44,912 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2020-10-12 10:02:44,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:02:44,913 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:02:44,914 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:02:44,914 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:02:44,914 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:02:44,914 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 10:02:44,914 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:02:44,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:02:44,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:02:44,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:02:44,915 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:02:44,916 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2020-10-12 10:02:44,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:02:44,917 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:02:44,918 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:02:44,918 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:02:44,918 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:02:44,918 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:02:44,919 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:02:44,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:02:44,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:02:44,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:02:44,919 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:02:44,951 INFO L134 CoverageAnalysis]: Checked inductivity of 1942 backedges. 22 proven. 729 refuted. 0 times theorem prover too weak. 1191 trivial. 0 not checked. [2020-10-12 10:02:44,951 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1457465556] [2020-10-12 10:02:44,951 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 10:02:44,952 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [31] total 31 [2020-10-12 10:02:44,952 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2092319703] [2020-10-12 10:02:44,952 INFO L459 AbstractCegarLoop]: Interpolant automaton has 31 states [2020-10-12 10:02:44,952 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 10:02:44,953 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2020-10-12 10:02:44,953 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=437, Invalid=493, Unknown=0, NotChecked=0, Total=930 [2020-10-12 10:02:44,953 INFO L87 Difference]: Start difference. First operand 214 states and 216 transitions. Second operand 31 states. [2020-10-12 10:02:45,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 10:02:45,367 INFO L93 Difference]: Finished difference Result 373 states and 378 transitions. [2020-10-12 10:02:45,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2020-10-12 10:02:45,367 INFO L78 Accepts]: Start accepts. Automaton has 31 states. Word has length 211 [2020-10-12 10:02:45,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 10:02:45,369 INFO L225 Difference]: With dead ends: 373 [2020-10-12 10:02:45,369 INFO L226 Difference]: Without dead ends: 220 [2020-10-12 10:02:45,371 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=437, Invalid=493, Unknown=0, NotChecked=0, Total=930 [2020-10-12 10:02:45,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states. [2020-10-12 10:02:45,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 218. [2020-10-12 10:02:45,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 218 states. [2020-10-12 10:02:45,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 220 transitions. [2020-10-12 10:02:45,384 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 220 transitions. Word has length 211 [2020-10-12 10:02:45,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 10:02:45,385 INFO L479 AbstractCegarLoop]: Abstraction has 218 states and 220 transitions. [2020-10-12 10:02:45,385 INFO L480 AbstractCegarLoop]: Interpolant automaton has 31 states. [2020-10-12 10:02:45,385 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 220 transitions. [2020-10-12 10:02:45,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2020-10-12 10:02:45,386 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 10:02:45,387 INFO L422 BasicCegarLoop]: trace histogram [28, 28, 28, 28, 12, 12, 12, 11, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 10:02:45,387 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2020-10-12 10:02:45,387 INFO L427 AbstractCegarLoop]: === Iteration 40 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 10:02:45,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 10:02:45,387 INFO L82 PathProgramCache]: Analyzing trace with hash 249318931, now seen corresponding path program 38 times [2020-10-12 10:02:45,388 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 10:02:45,388 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1956721758] [2020-10-12 10:02:45,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 10:02:45,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:02:45,429 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:02:45,479 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:02:50,435 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:02:50,435 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 245 [2020-10-12 10:02:50,435 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 10:02:50,435 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5021 [2020-10-12 10:02:50,436 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:02:50,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 30 [2020-10-12 10:02:50,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-12 10:02:50,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-10-12 10:02:50,436 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:02:51,072 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 10:02:51,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:02:51,074 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:02:51,075 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:02:51,075 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:02:51,075 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:02:51,076 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:02:51,076 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:02:51,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:02:51,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:02:51,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:02:51,077 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 10:02:51,078 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-10-12 10:02:51,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:02:51,079 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:02:51,080 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:02:51,080 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:02:51,081 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:02:51,081 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:02:51,081 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:02:51,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:02:51,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:02:51,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:02:51,082 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:02:51,083 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-10-12 10:02:51,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:02:51,084 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:02:51,084 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:02:51,085 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:02:51,085 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:02:51,085 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:02:51,085 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:02:51,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:02:51,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:02:51,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:02:51,086 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 10:02:51,087 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-10-12 10:02:51,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:02:51,088 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:02:51,089 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:02:51,089 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:02:51,089 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:02:51,089 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 10:02:51,089 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:02:51,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:02:51,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:02:51,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:02:51,090 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:02:51,091 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-10-12 10:02:51,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:02:51,092 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:02:51,092 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:02:51,092 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:02:51,093 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:02:51,093 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 10:02:51,093 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:02:51,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:02:51,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:02:51,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:02:51,094 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:02:51,094 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2020-10-12 10:02:51,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:02:51,095 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:02:51,096 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:02:51,096 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:02:51,096 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:02:51,096 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 10:02:51,097 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:02:51,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:02:51,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:02:51,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:02:51,097 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:02:51,098 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2020-10-12 10:02:51,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:02:51,101 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:02:51,102 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:02:51,102 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:02:51,102 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:02:51,102 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:02:51,103 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:02:51,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:02:51,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:02:51,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:02:51,103 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:02:51,104 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2020-10-12 10:02:51,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:02:51,112 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:02:51,113 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:02:51,113 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:02:51,114 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:02:51,114 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 10:02:51,121 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:02:51,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:02:51,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:02:51,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:02:51,122 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 7 [2020-10-12 10:02:51,123 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2020-10-12 10:02:51,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:02:51,127 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:02:51,131 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:02:51,131 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:02:51,131 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:02:51,132 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 10:02:51,132 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:02:51,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:02:51,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:02:51,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:02:51,133 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:02:51,134 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2020-10-12 10:02:51,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:02:51,135 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:02:51,136 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:02:51,136 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:02:51,136 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:02:51,136 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 10:02:51,136 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:02:51,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:02:51,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:02:51,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:02:51,137 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:02:51,138 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2020-10-12 10:02:51,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:02:51,139 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:02:51,140 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:02:51,140 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:02:51,140 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:02:51,140 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 10:02:51,141 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:02:51,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:02:51,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:02:51,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:02:51,141 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:02:51,142 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2020-10-12 10:02:51,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:02:51,143 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:02:51,144 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:02:51,144 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:02:51,144 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:02:51,144 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 10:02:51,145 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:02:51,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:02:51,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:02:51,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:02:51,145 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:02:51,178 INFO L134 CoverageAnalysis]: Checked inductivity of 2052 backedges. 22 proven. 784 refuted. 0 times theorem prover too weak. 1246 trivial. 0 not checked. [2020-10-12 10:02:51,178 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1956721758] [2020-10-12 10:02:51,178 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 10:02:51,179 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [32] total 32 [2020-10-12 10:02:51,179 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1409398451] [2020-10-12 10:02:51,179 INFO L459 AbstractCegarLoop]: Interpolant automaton has 32 states [2020-10-12 10:02:51,179 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 10:02:51,180 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2020-10-12 10:02:51,180 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=467, Invalid=525, Unknown=0, NotChecked=0, Total=992 [2020-10-12 10:02:51,180 INFO L87 Difference]: Start difference. First operand 218 states and 220 transitions. Second operand 32 states. [2020-10-12 10:02:51,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 10:02:51,522 INFO L93 Difference]: Finished difference Result 379 states and 384 transitions. [2020-10-12 10:02:51,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2020-10-12 10:02:51,523 INFO L78 Accepts]: Start accepts. Automaton has 32 states. Word has length 215 [2020-10-12 10:02:51,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 10:02:51,525 INFO L225 Difference]: With dead ends: 379 [2020-10-12 10:02:51,525 INFO L226 Difference]: Without dead ends: 224 [2020-10-12 10:02:51,527 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=467, Invalid=525, Unknown=0, NotChecked=0, Total=992 [2020-10-12 10:02:51,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 224 states. [2020-10-12 10:02:51,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 224 to 222. [2020-10-12 10:02:51,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 222 states. [2020-10-12 10:02:51,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 224 transitions. [2020-10-12 10:02:51,540 INFO L78 Accepts]: Start accepts. Automaton has 222 states and 224 transitions. Word has length 215 [2020-10-12 10:02:51,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 10:02:51,540 INFO L479 AbstractCegarLoop]: Abstraction has 222 states and 224 transitions. [2020-10-12 10:02:51,540 INFO L480 AbstractCegarLoop]: Interpolant automaton has 32 states. [2020-10-12 10:02:51,540 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states and 224 transitions. [2020-10-12 10:02:51,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2020-10-12 10:02:51,541 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 10:02:51,542 INFO L422 BasicCegarLoop]: trace histogram [29, 29, 29, 29, 12, 12, 12, 11, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 10:02:51,542 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2020-10-12 10:02:51,542 INFO L427 AbstractCegarLoop]: === Iteration 41 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 10:02:51,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 10:02:51,542 INFO L82 PathProgramCache]: Analyzing trace with hash -1570455921, now seen corresponding path program 39 times [2020-10-12 10:02:51,543 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 10:02:51,543 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [90861212] [2020-10-12 10:02:51,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 10:02:51,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:02:51,589 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:02:51,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:02:56,620 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:02:56,621 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 249 [2020-10-12 10:02:56,621 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 10:02:56,621 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5052 [2020-10-12 10:02:56,621 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:02:56,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 31 [2020-10-12 10:02:56,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-12 10:02:56,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 60 [2020-10-12 10:02:56,622 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:02:57,249 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 10:02:57,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:02:57,250 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:02:57,251 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:02:57,251 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:02:57,252 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:02:57,252 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:02:57,252 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:02:57,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:02:57,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:02:57,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:02:57,252 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:02:57,253 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-10-12 10:02:57,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:02:57,254 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:02:57,254 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:02:57,254 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:02:57,254 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:02:57,255 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 10:02:57,255 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:02:57,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:02:57,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:02:57,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:02:57,255 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:02:57,256 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-12 10:02:57,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:02:57,256 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:02:57,257 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:02:57,257 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:02:57,257 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:02:57,257 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 10:02:57,257 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:02:57,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:02:57,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:02:57,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:02:57,258 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:02:57,258 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2020-10-12 10:02:57,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:02:57,259 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:02:57,259 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:02:57,259 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:02:57,259 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:02:57,259 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 10:02:57,260 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:02:57,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:02:57,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:02:57,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:02:57,260 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:02:57,260 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2020-10-12 10:02:57,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:02:57,261 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:02:57,261 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:02:57,262 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:02:57,262 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:02:57,262 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 10:02:57,262 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:02:57,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:02:57,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:02:57,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:02:57,262 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:02:57,263 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2020-10-12 10:02:57,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:02:57,263 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:02:57,264 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:02:57,264 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:02:57,264 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:02:57,264 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 10:02:57,264 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:02:57,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:02:57,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:02:57,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:02:57,265 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:02:57,265 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2020-10-12 10:02:57,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:02:57,266 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:02:57,266 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:02:57,266 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:02:57,267 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:02:57,267 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 10:02:57,267 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:02:57,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:02:57,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:02:57,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:02:57,267 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:02:57,268 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2020-10-12 10:02:57,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:02:57,268 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:02:57,269 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:02:57,269 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:02:57,269 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:02:57,269 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 10:02:57,269 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:02:57,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:02:57,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:02:57,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:02:57,270 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:02:57,270 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2020-10-12 10:02:57,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:02:57,271 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:02:57,271 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:02:57,271 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:02:57,271 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:02:57,271 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 10:02:57,272 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:02:57,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:02:57,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:02:57,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:02:57,272 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:02:57,272 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2020-10-12 10:02:57,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:02:57,273 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:02:57,273 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:02:57,274 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:02:57,274 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:02:57,274 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 10:02:57,274 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:02:57,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:02:57,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:02:57,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:02:57,274 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:02:57,275 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2020-10-12 10:02:57,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:02:57,275 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:02:57,276 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:02:57,276 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:02:57,276 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:02:57,276 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 10:02:57,276 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:02:57,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:02:57,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:02:57,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:02:57,277 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:02:57,277 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2020-10-12 10:02:57,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:02:57,278 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:02:57,278 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:02:57,278 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:02:57,279 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:02:57,279 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 10:02:57,279 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:02:57,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:02:57,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:02:57,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:02:57,280 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:02:57,300 INFO L134 CoverageAnalysis]: Checked inductivity of 2166 backedges. 22 proven. 841 refuted. 0 times theorem prover too weak. 1303 trivial. 0 not checked. [2020-10-12 10:02:57,300 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [90861212] [2020-10-12 10:02:57,300 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 10:02:57,301 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33] total 33 [2020-10-12 10:02:57,301 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2108989440] [2020-10-12 10:02:57,301 INFO L459 AbstractCegarLoop]: Interpolant automaton has 33 states [2020-10-12 10:02:57,301 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 10:02:57,301 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2020-10-12 10:02:57,302 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=498, Invalid=558, Unknown=0, NotChecked=0, Total=1056 [2020-10-12 10:02:57,302 INFO L87 Difference]: Start difference. First operand 222 states and 224 transitions. Second operand 33 states. [2020-10-12 10:02:57,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 10:02:57,739 INFO L93 Difference]: Finished difference Result 385 states and 390 transitions. [2020-10-12 10:02:57,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2020-10-12 10:02:57,740 INFO L78 Accepts]: Start accepts. Automaton has 33 states. Word has length 219 [2020-10-12 10:02:57,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 10:02:57,741 INFO L225 Difference]: With dead ends: 385 [2020-10-12 10:02:57,742 INFO L226 Difference]: Without dead ends: 228 [2020-10-12 10:02:57,743 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=498, Invalid=558, Unknown=0, NotChecked=0, Total=1056 [2020-10-12 10:02:57,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 228 states. [2020-10-12 10:02:57,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 228 to 226. [2020-10-12 10:02:57,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 226 states. [2020-10-12 10:02:57,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 228 transitions. [2020-10-12 10:02:57,756 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 228 transitions. Word has length 219 [2020-10-12 10:02:57,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 10:02:57,757 INFO L479 AbstractCegarLoop]: Abstraction has 226 states and 228 transitions. [2020-10-12 10:02:57,757 INFO L480 AbstractCegarLoop]: Interpolant automaton has 33 states. [2020-10-12 10:02:57,757 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 228 transitions. [2020-10-12 10:02:57,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2020-10-12 10:02:57,758 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 10:02:57,759 INFO L422 BasicCegarLoop]: trace histogram [30, 30, 30, 30, 12, 12, 12, 11, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 10:02:57,759 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2020-10-12 10:02:57,759 INFO L427 AbstractCegarLoop]: === Iteration 42 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 10:02:57,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 10:02:57,759 INFO L82 PathProgramCache]: Analyzing trace with hash 640778507, now seen corresponding path program 40 times [2020-10-12 10:02:57,759 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 10:02:57,760 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [195226523] [2020-10-12 10:02:57,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 10:02:57,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:02:57,813 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:02:57,896 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:03:02,845 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:03:02,845 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 253 [2020-10-12 10:03:02,845 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 10:03:02,845 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5056 [2020-10-12 10:03:02,846 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:03:02,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 32 [2020-10-12 10:03:02,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-12 10:03:02,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-10-12 10:03:02,846 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:03:03,493 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 10:03:03,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:03:03,495 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:03:03,496 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:03:03,496 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:03:03,496 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:03:03,496 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:03:03,496 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:03:03,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:03:03,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:03:03,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:03:03,497 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:03:03,497 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-10-12 10:03:03,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:03:03,498 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:03:03,498 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:03:03,498 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:03:03,499 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:03:03,499 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 10:03:03,499 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:03:03,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:03:03,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:03:03,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:03:03,499 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:03:03,500 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-10-12 10:03:03,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:03:03,500 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:03:03,501 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:03:03,501 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:03:03,501 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:03:03,501 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 10:03:03,501 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:03:03,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:03:03,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:03:03,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:03:03,502 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:03:03,502 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-10-12 10:03:03,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:03:03,503 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:03:03,503 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:03:03,503 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:03:03,504 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:03:03,504 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 10:03:03,504 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:03:03,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:03:03,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:03:03,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:03:03,504 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:03:03,505 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2020-10-12 10:03:03,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:03:03,505 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:03:03,506 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:03:03,506 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:03:03,506 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:03:03,506 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 10:03:03,506 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:03:03,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:03:03,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:03:03,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:03:03,507 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:03:03,507 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2020-10-12 10:03:03,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:03:03,508 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:03:03,508 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:03:03,508 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:03:03,508 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:03:03,508 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 10:03:03,509 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:03:03,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:03:03,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:03:03,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:03:03,509 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:03:03,509 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2020-10-12 10:03:03,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:03:03,510 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:03:03,511 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:03:03,511 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:03:03,511 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:03:03,511 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 10:03:03,511 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:03:03,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:03:03,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:03:03,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:03:03,511 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:03:03,512 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2020-10-12 10:03:03,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:03:03,512 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:03:03,513 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:03:03,513 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:03:03,513 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:03:03,513 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 10:03:03,513 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:03:03,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:03:03,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:03:03,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:03:03,514 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:03:03,514 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2020-10-12 10:03:03,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:03:03,515 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:03:03,515 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:03:03,515 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:03:03,515 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:03:03,515 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 10:03:03,516 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:03:03,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:03:03,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:03:03,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:03:03,516 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:03:03,516 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2020-10-12 10:03:03,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:03:03,517 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:03:03,517 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:03:03,518 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:03:03,518 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:03:03,518 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 10:03:03,518 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:03:03,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:03:03,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:03:03,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:03:03,518 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:03:03,519 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2020-10-12 10:03:03,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:03:03,519 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:03:03,520 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:03:03,520 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:03:03,520 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:03:03,520 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 10:03:03,520 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:03:03,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:03:03,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:03:03,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:03:03,521 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:03:03,521 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2020-10-12 10:03:03,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:03:03,522 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:03:03,522 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:03:03,522 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:03:03,522 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:03:03,523 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 10:03:03,523 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:03:03,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:03:03,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:03:03,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:03:03,523 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:03:03,546 INFO L134 CoverageAnalysis]: Checked inductivity of 2284 backedges. 22 proven. 900 refuted. 0 times theorem prover too weak. 1362 trivial. 0 not checked. [2020-10-12 10:03:03,546 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [195226523] [2020-10-12 10:03:03,547 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 10:03:03,547 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [34] total 34 [2020-10-12 10:03:03,547 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2044854377] [2020-10-12 10:03:03,547 INFO L459 AbstractCegarLoop]: Interpolant automaton has 34 states [2020-10-12 10:03:03,547 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 10:03:03,547 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2020-10-12 10:03:03,548 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=530, Invalid=592, Unknown=0, NotChecked=0, Total=1122 [2020-10-12 10:03:03,548 INFO L87 Difference]: Start difference. First operand 226 states and 228 transitions. Second operand 34 states. [2020-10-12 10:03:04,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 10:03:04,028 INFO L93 Difference]: Finished difference Result 391 states and 396 transitions. [2020-10-12 10:03:04,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2020-10-12 10:03:04,028 INFO L78 Accepts]: Start accepts. Automaton has 34 states. Word has length 223 [2020-10-12 10:03:04,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 10:03:04,031 INFO L225 Difference]: With dead ends: 391 [2020-10-12 10:03:04,031 INFO L226 Difference]: Without dead ends: 232 [2020-10-12 10:03:04,032 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=530, Invalid=592, Unknown=0, NotChecked=0, Total=1122 [2020-10-12 10:03:04,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 232 states. [2020-10-12 10:03:04,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 232 to 230. [2020-10-12 10:03:04,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 230 states. [2020-10-12 10:03:04,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 232 transitions. [2020-10-12 10:03:04,045 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 232 transitions. Word has length 223 [2020-10-12 10:03:04,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 10:03:04,045 INFO L479 AbstractCegarLoop]: Abstraction has 230 states and 232 transitions. [2020-10-12 10:03:04,045 INFO L480 AbstractCegarLoop]: Interpolant automaton has 34 states. [2020-10-12 10:03:04,046 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 232 transitions. [2020-10-12 10:03:04,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2020-10-12 10:03:04,047 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 10:03:04,047 INFO L422 BasicCegarLoop]: trace histogram [31, 31, 31, 31, 12, 12, 12, 11, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 10:03:04,047 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2020-10-12 10:03:04,047 INFO L427 AbstractCegarLoop]: === Iteration 43 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 10:03:04,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 10:03:04,048 INFO L82 PathProgramCache]: Analyzing trace with hash 894276999, now seen corresponding path program 41 times [2020-10-12 10:03:04,048 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 10:03:04,048 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [854810355] [2020-10-12 10:03:04,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 10:03:04,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:03:04,085 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:03:04,142 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:03:09,114 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:03:09,115 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 257 [2020-10-12 10:03:09,115 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 10:03:09,115 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5044 [2020-10-12 10:03:09,115 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:03:09,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 33 [2020-10-12 10:03:09,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 75 [2020-10-12 10:03:09,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-10-12 10:03:09,115 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:03:09,843 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 10:03:09,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:03:09,845 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:03:09,846 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:03:09,846 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:03:09,846 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:03:09,847 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:03:09,847 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:03:09,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:03:09,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:03:09,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:03:09,847 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:03:09,848 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-12 10:03:09,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:03:09,849 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:03:09,850 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:03:09,850 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:03:09,850 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:03:09,850 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 10:03:09,851 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:03:09,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:03:09,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:03:09,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:03:09,851 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:03:09,852 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2020-10-12 10:03:09,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:03:09,853 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:03:09,854 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:03:09,854 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:03:09,854 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:03:09,854 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 10:03:09,854 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:03:09,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:03:09,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:03:09,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:03:09,855 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:03:09,856 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2020-10-12 10:03:09,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:03:09,857 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:03:09,857 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:03:09,857 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:03:09,858 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:03:09,858 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 10:03:09,858 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:03:09,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:03:09,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:03:09,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:03:09,859 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:03:09,859 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2020-10-12 10:03:09,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:03:09,860 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:03:09,861 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:03:09,861 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:03:09,861 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:03:09,861 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 10:03:09,862 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:03:09,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:03:09,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:03:09,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:03:09,862 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:03:09,863 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2020-10-12 10:03:09,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:03:09,864 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:03:09,864 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:03:09,864 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:03:09,865 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:03:09,865 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 10:03:09,865 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:03:09,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:03:09,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:03:09,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:03:09,865 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:03:09,866 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2020-10-12 10:03:09,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:03:09,866 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:03:09,867 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:03:09,867 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:03:09,867 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:03:09,867 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 10:03:09,867 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:03:09,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:03:09,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:03:09,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:03:09,868 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:03:09,868 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2020-10-12 10:03:09,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:03:09,869 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:03:09,869 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:03:09,870 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:03:09,870 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:03:09,870 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 10:03:09,870 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:03:09,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:03:09,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:03:09,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:03:09,870 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:03:09,871 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2020-10-12 10:03:09,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:03:09,872 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:03:09,872 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:03:09,872 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:03:09,872 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:03:09,872 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 10:03:09,872 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:03:09,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:03:09,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:03:09,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:03:09,873 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:03:09,873 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2020-10-12 10:03:09,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:03:09,874 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:03:09,875 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:03:09,875 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:03:09,875 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:03:09,875 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 10:03:09,875 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:03:09,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:03:09,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:03:09,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:03:09,875 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:03:09,876 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2020-10-12 10:03:09,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:03:09,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:03:09,877 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:03:09,877 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:03:09,877 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:03:09,877 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 10:03:09,878 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:03:09,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:03:09,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:03:09,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:03:09,878 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:03:09,879 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2020-10-12 10:03:09,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:03:09,879 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:03:09,880 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:03:09,880 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:03:09,880 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:03:09,880 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 10:03:09,880 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:03:09,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:03:09,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:03:09,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:03:09,881 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:03:09,902 INFO L134 CoverageAnalysis]: Checked inductivity of 2406 backedges. 22 proven. 961 refuted. 0 times theorem prover too weak. 1423 trivial. 0 not checked. [2020-10-12 10:03:09,903 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [854810355] [2020-10-12 10:03:09,903 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 10:03:09,903 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [35] total 35 [2020-10-12 10:03:09,903 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2118402211] [2020-10-12 10:03:09,903 INFO L459 AbstractCegarLoop]: Interpolant automaton has 35 states [2020-10-12 10:03:09,903 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 10:03:09,904 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2020-10-12 10:03:09,904 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=563, Invalid=627, Unknown=0, NotChecked=0, Total=1190 [2020-10-12 10:03:09,904 INFO L87 Difference]: Start difference. First operand 230 states and 232 transitions. Second operand 35 states. [2020-10-12 10:03:10,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 10:03:10,332 INFO L93 Difference]: Finished difference Result 397 states and 402 transitions. [2020-10-12 10:03:10,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2020-10-12 10:03:10,333 INFO L78 Accepts]: Start accepts. Automaton has 35 states. Word has length 227 [2020-10-12 10:03:10,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 10:03:10,335 INFO L225 Difference]: With dead ends: 397 [2020-10-12 10:03:10,335 INFO L226 Difference]: Without dead ends: 236 [2020-10-12 10:03:10,336 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=563, Invalid=627, Unknown=0, NotChecked=0, Total=1190 [2020-10-12 10:03:10,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 236 states. [2020-10-12 10:03:10,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 236 to 234. [2020-10-12 10:03:10,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 234 states. [2020-10-12 10:03:10,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 236 transitions. [2020-10-12 10:03:10,350 INFO L78 Accepts]: Start accepts. Automaton has 234 states and 236 transitions. Word has length 227 [2020-10-12 10:03:10,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 10:03:10,351 INFO L479 AbstractCegarLoop]: Abstraction has 234 states and 236 transitions. [2020-10-12 10:03:10,351 INFO L480 AbstractCegarLoop]: Interpolant automaton has 35 states. [2020-10-12 10:03:10,351 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 236 transitions. [2020-10-12 10:03:10,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2020-10-12 10:03:10,352 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 10:03:10,353 INFO L422 BasicCegarLoop]: trace histogram [32, 32, 32, 32, 12, 12, 12, 11, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 10:03:10,353 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2020-10-12 10:03:10,353 INFO L427 AbstractCegarLoop]: === Iteration 44 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 10:03:10,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 10:03:10,353 INFO L82 PathProgramCache]: Analyzing trace with hash -1673266173, now seen corresponding path program 42 times [2020-10-12 10:03:10,354 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 10:03:10,354 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1526016461] [2020-10-12 10:03:10,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 10:03:10,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:03:10,407 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:03:10,513 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:03:15,510 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:03:15,510 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 261 [2020-10-12 10:03:15,510 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 10:03:15,511 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5126 [2020-10-12 10:03:15,511 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:03:15,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 34 [2020-10-12 10:03:15,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 77 [2020-10-12 10:03:15,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 66 [2020-10-12 10:03:15,511 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:03:16,286 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 10:03:16,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:03:16,288 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:03:16,289 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:03:16,289 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:03:16,289 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:03:16,290 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:03:16,290 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:03:16,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:03:16,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:03:16,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:03:16,290 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:03:16,291 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-10-12 10:03:16,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:03:16,292 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:03:16,292 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:03:16,292 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:03:16,293 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:03:16,293 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 10:03:16,293 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:03:16,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:03:16,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:03:16,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:03:16,293 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:03:16,294 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-10-12 10:03:16,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:03:16,294 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:03:16,295 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:03:16,295 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:03:16,295 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:03:16,295 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 10:03:16,295 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:03:16,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:03:16,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:03:16,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:03:16,296 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:03:16,296 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2020-10-12 10:03:16,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:03:16,297 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:03:16,297 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:03:16,298 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:03:16,298 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:03:16,298 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 10:03:16,298 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:03:16,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:03:16,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:03:16,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:03:16,298 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:03:16,299 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2020-10-12 10:03:16,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:03:16,300 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:03:16,301 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:03:16,301 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:03:16,301 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:03:16,301 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 10:03:16,301 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:03:16,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:03:16,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:03:16,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:03:16,302 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:03:16,303 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2020-10-12 10:03:16,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:03:16,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:03:16,305 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:03:16,305 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:03:16,305 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:03:16,305 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 10:03:16,305 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:03:16,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:03:16,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:03:16,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:03:16,306 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:03:16,306 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2020-10-12 10:03:16,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:03:16,307 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:03:16,308 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:03:16,308 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:03:16,308 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:03:16,308 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 10:03:16,308 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:03:16,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:03:16,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:03:16,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:03:16,308 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:03:16,309 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2020-10-12 10:03:16,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:03:16,310 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:03:16,310 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:03:16,310 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:03:16,310 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:03:16,311 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 10:03:16,311 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:03:16,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:03:16,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:03:16,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:03:16,311 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:03:16,312 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2020-10-12 10:03:16,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:03:16,313 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:03:16,314 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:03:16,314 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:03:16,314 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:03:16,314 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 10:03:16,314 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:03:16,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:03:16,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:03:16,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:03:16,315 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:03:16,316 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2020-10-12 10:03:16,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:03:16,317 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:03:16,318 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:03:16,318 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:03:16,318 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:03:16,318 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 10:03:16,319 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:03:16,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:03:16,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:03:16,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:03:16,319 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:03:16,320 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2020-10-12 10:03:16,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:03:16,321 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:03:16,322 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:03:16,322 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:03:16,323 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:03:16,323 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:03:16,323 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:03:16,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:03:16,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:03:16,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:03:16,324 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:03:16,325 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2020-10-12 10:03:16,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:03:16,326 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:03:16,327 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:03:16,327 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:03:16,327 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:03:16,327 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:03:16,327 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:03:16,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:03:16,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:03:16,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:03:16,328 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:03:16,363 INFO L134 CoverageAnalysis]: Checked inductivity of 2532 backedges. 22 proven. 1024 refuted. 0 times theorem prover too weak. 1486 trivial. 0 not checked. [2020-10-12 10:03:16,363 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1526016461] [2020-10-12 10:03:16,363 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 10:03:16,363 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [36] total 36 [2020-10-12 10:03:16,364 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1929508970] [2020-10-12 10:03:16,364 INFO L459 AbstractCegarLoop]: Interpolant automaton has 36 states [2020-10-12 10:03:16,364 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 10:03:16,365 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2020-10-12 10:03:16,365 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=597, Invalid=663, Unknown=0, NotChecked=0, Total=1260 [2020-10-12 10:03:16,366 INFO L87 Difference]: Start difference. First operand 234 states and 236 transitions. Second operand 36 states. [2020-10-12 10:03:16,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 10:03:16,895 INFO L93 Difference]: Finished difference Result 403 states and 408 transitions. [2020-10-12 10:03:16,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2020-10-12 10:03:16,896 INFO L78 Accepts]: Start accepts. Automaton has 36 states. Word has length 231 [2020-10-12 10:03:16,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 10:03:16,898 INFO L225 Difference]: With dead ends: 403 [2020-10-12 10:03:16,898 INFO L226 Difference]: Without dead ends: 240 [2020-10-12 10:03:16,900 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=597, Invalid=663, Unknown=0, NotChecked=0, Total=1260 [2020-10-12 10:03:16,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 240 states. [2020-10-12 10:03:16,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 240 to 238. [2020-10-12 10:03:16,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 238 states. [2020-10-12 10:03:16,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238 states to 238 states and 240 transitions. [2020-10-12 10:03:16,914 INFO L78 Accepts]: Start accepts. Automaton has 238 states and 240 transitions. Word has length 231 [2020-10-12 10:03:16,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 10:03:16,915 INFO L479 AbstractCegarLoop]: Abstraction has 238 states and 240 transitions. [2020-10-12 10:03:16,915 INFO L480 AbstractCegarLoop]: Interpolant automaton has 36 states. [2020-10-12 10:03:16,915 INFO L276 IsEmpty]: Start isEmpty. Operand 238 states and 240 transitions. [2020-10-12 10:03:16,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2020-10-12 10:03:16,916 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 10:03:16,917 INFO L422 BasicCegarLoop]: trace histogram [33, 33, 33, 33, 12, 12, 12, 11, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 10:03:16,917 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2020-10-12 10:03:16,917 INFO L427 AbstractCegarLoop]: === Iteration 45 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 10:03:16,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 10:03:16,917 INFO L82 PathProgramCache]: Analyzing trace with hash -652233601, now seen corresponding path program 43 times [2020-10-12 10:03:16,918 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 10:03:16,918 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1413470023] [2020-10-12 10:03:16,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 10:03:16,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:03:16,971 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:03:17,057 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:03:22,106 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:03:22,106 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 265 [2020-10-12 10:03:22,106 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 10:03:22,106 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5159 [2020-10-12 10:03:22,106 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:03:22,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 35 [2020-10-12 10:03:22,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-12 10:03:22,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-10-12 10:03:22,107 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:03:22,925 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 10:03:22,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:03:22,926 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:03:22,927 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:03:22,927 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:03:22,927 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:03:22,927 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 10:03:22,927 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:03:22,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:03:22,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:03:22,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:03:22,928 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:03:22,928 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2020-10-12 10:03:22,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:03:22,929 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:03:22,930 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:03:22,930 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:03:22,930 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:03:22,930 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 10:03:22,930 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:03:22,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:03:22,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:03:22,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:03:22,931 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:03:22,931 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2020-10-12 10:03:22,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:03:22,932 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:03:22,932 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:03:22,932 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:03:22,933 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:03:22,933 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 10:03:22,933 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:03:22,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:03:22,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:03:22,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:03:22,934 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:03:22,934 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2020-10-12 10:03:22,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:03:22,935 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:03:22,936 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:03:22,936 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:03:22,936 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:03:22,936 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 10:03:22,937 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:03:22,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:03:22,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:03:22,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:03:22,937 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:03:22,938 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2020-10-12 10:03:22,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:03:22,939 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:03:22,940 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:03:22,940 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:03:22,940 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:03:22,940 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 10:03:22,940 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:03:22,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:03:22,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:03:22,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:03:22,941 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:03:22,942 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2020-10-12 10:03:22,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:03:22,943 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:03:22,943 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:03:22,943 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:03:22,944 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:03:22,944 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 10:03:22,944 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:03:22,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:03:22,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:03:22,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:03:22,945 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:03:22,945 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2020-10-12 10:03:22,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:03:22,946 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:03:22,947 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:03:22,947 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:03:22,948 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:03:22,948 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 10:03:22,948 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:03:22,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:03:22,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:03:22,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:03:22,949 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:03:22,949 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2020-10-12 10:03:22,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:03:22,950 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:03:22,951 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:03:22,951 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:03:22,951 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:03:22,952 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 10:03:22,952 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:03:22,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:03:22,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:03:22,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:03:22,952 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:03:22,953 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2020-10-12 10:03:22,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:03:22,954 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:03:22,955 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:03:22,955 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:03:22,955 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:03:22,955 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 10:03:22,956 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:03:22,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:03:22,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:03:22,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:03:22,956 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:03:22,957 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2020-10-12 10:03:22,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:03:22,958 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:03:22,959 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:03:22,959 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:03:22,959 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:03:22,959 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 10:03:22,959 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:03:22,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:03:22,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:03:22,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:03:22,960 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:03:22,961 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2020-10-12 10:03:22,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:03:22,962 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:03:22,963 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:03:22,963 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:03:22,963 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:03:22,963 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 10:03:22,963 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:03:22,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:03:22,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:03:22,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:03:22,964 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:03:22,965 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2020-10-12 10:03:22,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:03:22,966 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:03:22,966 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:03:22,967 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:03:22,967 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:03:22,967 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 10:03:22,967 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:03:22,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:03:22,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:03:22,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:03:22,967 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:03:22,991 INFO L134 CoverageAnalysis]: Checked inductivity of 2662 backedges. 22 proven. 1089 refuted. 0 times theorem prover too weak. 1551 trivial. 0 not checked. [2020-10-12 10:03:22,991 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1413470023] [2020-10-12 10:03:22,991 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 10:03:22,991 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [37] total 37 [2020-10-12 10:03:22,992 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [231964612] [2020-10-12 10:03:22,992 INFO L459 AbstractCegarLoop]: Interpolant automaton has 37 states [2020-10-12 10:03:22,992 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 10:03:22,992 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2020-10-12 10:03:22,993 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=632, Invalid=700, Unknown=0, NotChecked=0, Total=1332 [2020-10-12 10:03:22,993 INFO L87 Difference]: Start difference. First operand 238 states and 240 transitions. Second operand 37 states. [2020-10-12 10:03:23,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 10:03:23,514 INFO L93 Difference]: Finished difference Result 409 states and 414 transitions. [2020-10-12 10:03:23,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2020-10-12 10:03:23,514 INFO L78 Accepts]: Start accepts. Automaton has 37 states. Word has length 235 [2020-10-12 10:03:23,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 10:03:23,516 INFO L225 Difference]: With dead ends: 409 [2020-10-12 10:03:23,516 INFO L226 Difference]: Without dead ends: 244 [2020-10-12 10:03:23,517 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=632, Invalid=700, Unknown=0, NotChecked=0, Total=1332 [2020-10-12 10:03:23,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 244 states. [2020-10-12 10:03:23,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 244 to 242. [2020-10-12 10:03:23,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 242 states. [2020-10-12 10:03:23,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 242 states and 244 transitions. [2020-10-12 10:03:23,531 INFO L78 Accepts]: Start accepts. Automaton has 242 states and 244 transitions. Word has length 235 [2020-10-12 10:03:23,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 10:03:23,531 INFO L479 AbstractCegarLoop]: Abstraction has 242 states and 244 transitions. [2020-10-12 10:03:23,531 INFO L480 AbstractCegarLoop]: Interpolant automaton has 37 states. [2020-10-12 10:03:23,531 INFO L276 IsEmpty]: Start isEmpty. Operand 242 states and 244 transitions. [2020-10-12 10:03:23,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2020-10-12 10:03:23,533 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 10:03:23,533 INFO L422 BasicCegarLoop]: trace histogram [34, 34, 34, 34, 12, 12, 12, 11, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 10:03:23,533 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2020-10-12 10:03:23,533 INFO L427 AbstractCegarLoop]: === Iteration 46 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 10:03:23,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 10:03:23,534 INFO L82 PathProgramCache]: Analyzing trace with hash -1687437573, now seen corresponding path program 44 times [2020-10-12 10:03:23,534 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 10:03:23,534 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [258592944] [2020-10-12 10:03:23,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 10:03:23,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:03:23,584 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:03:23,659 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:03:28,602 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:03:28,602 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 269 [2020-10-12 10:03:28,602 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 10:03:28,602 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5039 [2020-10-12 10:03:28,602 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:03:28,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 36 [2020-10-12 10:03:28,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-12 10:03:28,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-10-12 10:03:28,603 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:03:29,454 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 10:03:29,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:03:29,455 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:03:29,456 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:03:29,456 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:03:29,456 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:03:29,456 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:03:29,457 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:03:29,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:03:29,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:03:29,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:03:29,457 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:03:29,458 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-10-12 10:03:29,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:03:29,458 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:03:29,459 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:03:29,459 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:03:29,459 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:03:29,459 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 10:03:29,459 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:03:29,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:03:29,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:03:29,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:03:29,460 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:03:29,460 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2020-10-12 10:03:29,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:03:29,461 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:03:29,461 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:03:29,461 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:03:29,462 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:03:29,462 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 10:03:29,462 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:03:29,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:03:29,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:03:29,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:03:29,462 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:03:29,463 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2020-10-12 10:03:29,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:03:29,463 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:03:29,464 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:03:29,464 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:03:29,464 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:03:29,464 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 10:03:29,464 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:03:29,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:03:29,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:03:29,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:03:29,465 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:03:29,465 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2020-10-12 10:03:29,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:03:29,466 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:03:29,466 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:03:29,466 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:03:29,466 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:03:29,466 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 10:03:29,466 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:03:29,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:03:29,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:03:29,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:03:29,467 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:03:29,467 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2020-10-12 10:03:29,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:03:29,468 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:03:29,468 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:03:29,468 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:03:29,469 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:03:29,469 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 10:03:29,469 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:03:29,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:03:29,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:03:29,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:03:29,469 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:03:29,470 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2020-10-12 10:03:29,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:03:29,470 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:03:29,471 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:03:29,471 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:03:29,471 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:03:29,471 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 10:03:29,471 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:03:29,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:03:29,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:03:29,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:03:29,472 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:03:29,472 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2020-10-12 10:03:29,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:03:29,473 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:03:29,473 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:03:29,473 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:03:29,473 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:03:29,473 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 10:03:29,473 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:03:29,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:03:29,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:03:29,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:03:29,474 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:03:29,474 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2020-10-12 10:03:29,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:03:29,475 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:03:29,475 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:03:29,475 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:03:29,476 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:03:29,476 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 10:03:29,476 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:03:29,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:03:29,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:03:29,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:03:29,476 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:03:29,477 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2020-10-12 10:03:29,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:03:29,477 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:03:29,478 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:03:29,478 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:03:29,478 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:03:29,478 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 10:03:29,478 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:03:29,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:03:29,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:03:29,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:03:29,479 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:03:29,479 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2020-10-12 10:03:29,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:03:29,480 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:03:29,480 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:03:29,480 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:03:29,481 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:03:29,481 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 10:03:29,481 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:03:29,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:03:29,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:03:29,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:03:29,481 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:03:29,482 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-12 10:03:29,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:03:29,482 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:03:29,483 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:03:29,483 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:03:29,483 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:03:29,483 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 10:03:29,483 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:03:29,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:03:29,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:03:29,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:03:29,484 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:03:29,508 INFO L134 CoverageAnalysis]: Checked inductivity of 2796 backedges. 22 proven. 1156 refuted. 0 times theorem prover too weak. 1618 trivial. 0 not checked. [2020-10-12 10:03:29,508 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [258592944] [2020-10-12 10:03:29,508 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 10:03:29,509 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [38] total 38 [2020-10-12 10:03:29,509 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1790675195] [2020-10-12 10:03:29,509 INFO L459 AbstractCegarLoop]: Interpolant automaton has 38 states [2020-10-12 10:03:29,510 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 10:03:29,510 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2020-10-12 10:03:29,510 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=668, Invalid=738, Unknown=0, NotChecked=0, Total=1406 [2020-10-12 10:03:29,510 INFO L87 Difference]: Start difference. First operand 242 states and 244 transitions. Second operand 38 states. [2020-10-12 10:03:30,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 10:03:30,048 INFO L93 Difference]: Finished difference Result 415 states and 420 transitions. [2020-10-12 10:03:30,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2020-10-12 10:03:30,049 INFO L78 Accepts]: Start accepts. Automaton has 38 states. Word has length 239 [2020-10-12 10:03:30,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 10:03:30,052 INFO L225 Difference]: With dead ends: 415 [2020-10-12 10:03:30,052 INFO L226 Difference]: Without dead ends: 248 [2020-10-12 10:03:30,053 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=668, Invalid=738, Unknown=0, NotChecked=0, Total=1406 [2020-10-12 10:03:30,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 248 states. [2020-10-12 10:03:30,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 248 to 246. [2020-10-12 10:03:30,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 246 states. [2020-10-12 10:03:30,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 248 transitions. [2020-10-12 10:03:30,067 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 248 transitions. Word has length 239 [2020-10-12 10:03:30,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 10:03:30,068 INFO L479 AbstractCegarLoop]: Abstraction has 246 states and 248 transitions. [2020-10-12 10:03:30,068 INFO L480 AbstractCegarLoop]: Interpolant automaton has 38 states. [2020-10-12 10:03:30,068 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 248 transitions. [2020-10-12 10:03:30,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2020-10-12 10:03:30,070 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 10:03:30,070 INFO L422 BasicCegarLoop]: trace histogram [35, 35, 35, 35, 12, 12, 12, 11, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 10:03:30,070 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2020-10-12 10:03:30,070 INFO L427 AbstractCegarLoop]: === Iteration 47 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 10:03:30,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 10:03:30,071 INFO L82 PathProgramCache]: Analyzing trace with hash 1144200055, now seen corresponding path program 45 times [2020-10-12 10:03:30,071 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 10:03:30,071 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [867168473] [2020-10-12 10:03:30,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 10:03:30,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:03:30,122 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:03:30,270 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:03:35,109 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:03:35,110 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 273 [2020-10-12 10:03:35,110 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 10:03:35,110 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5009 [2020-10-12 10:03:35,110 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:03:35,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 37 [2020-10-12 10:03:35,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-12 10:03:35,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-10-12 10:03:35,111 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:03:36,006 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 10:03:36,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:03:36,007 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:03:36,008 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:03:36,008 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:03:36,008 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:03:36,009 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:03:36,009 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:03:36,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:03:36,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:03:36,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:03:36,009 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:03:36,010 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2020-10-12 10:03:36,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:03:36,010 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:03:36,011 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:03:36,011 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:03:36,011 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:03:36,011 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 10:03:36,011 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:03:36,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:03:36,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:03:36,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:03:36,012 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:03:36,012 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2020-10-12 10:03:36,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:03:36,013 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:03:36,013 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:03:36,013 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:03:36,014 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:03:36,014 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 10:03:36,014 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:03:36,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:03:36,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:03:36,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:03:36,014 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:03:36,015 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2020-10-12 10:03:36,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:03:36,015 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:03:36,016 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:03:36,016 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:03:36,016 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:03:36,016 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 10:03:36,016 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:03:36,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:03:36,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:03:36,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:03:36,017 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:03:36,017 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2020-10-12 10:03:36,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:03:36,018 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:03:36,018 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:03:36,018 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:03:36,019 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:03:36,019 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 10:03:36,019 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:03:36,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:03:36,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:03:36,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:03:36,019 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:03:36,020 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2020-10-12 10:03:36,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:03:36,020 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:03:36,021 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:03:36,021 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:03:36,021 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:03:36,021 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 10:03:36,021 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:03:36,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:03:36,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:03:36,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:03:36,022 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:03:36,022 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2020-10-12 10:03:36,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:03:36,023 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:03:36,023 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:03:36,023 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:03:36,023 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:03:36,024 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 10:03:36,024 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:03:36,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:03:36,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:03:36,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:03:36,024 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:03:36,025 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2020-10-12 10:03:36,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:03:36,025 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:03:36,026 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:03:36,026 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:03:36,026 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:03:36,026 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 10:03:36,026 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:03:36,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:03:36,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:03:36,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:03:36,026 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:03:36,027 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2020-10-12 10:03:36,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:03:36,028 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:03:36,028 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:03:36,028 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:03:36,028 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:03:36,028 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 10:03:36,029 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:03:36,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:03:36,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:03:36,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:03:36,029 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:03:36,029 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2020-10-12 10:03:36,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:03:36,030 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:03:36,030 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:03:36,031 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:03:36,031 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:03:36,031 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 10:03:36,031 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:03:36,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:03:36,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:03:36,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:03:36,031 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:03:36,032 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2020-10-12 10:03:36,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:03:36,032 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:03:36,033 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:03:36,033 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:03:36,033 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:03:36,033 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 10:03:36,034 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:03:36,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:03:36,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:03:36,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:03:36,034 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:03:36,034 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2020-10-12 10:03:36,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:03:36,035 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:03:36,036 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:03:36,036 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:03:36,036 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:03:36,036 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 10:03:36,036 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:03:36,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:03:36,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:03:36,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:03:36,036 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:03:36,062 INFO L134 CoverageAnalysis]: Checked inductivity of 2934 backedges. 22 proven. 1225 refuted. 0 times theorem prover too weak. 1687 trivial. 0 not checked. [2020-10-12 10:03:36,062 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [867168473] [2020-10-12 10:03:36,062 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 10:03:36,062 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [39] total 39 [2020-10-12 10:03:36,063 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [346075284] [2020-10-12 10:03:36,063 INFO L459 AbstractCegarLoop]: Interpolant automaton has 39 states [2020-10-12 10:03:36,063 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 10:03:36,063 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2020-10-12 10:03:36,064 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=705, Invalid=777, Unknown=0, NotChecked=0, Total=1482 [2020-10-12 10:03:36,064 INFO L87 Difference]: Start difference. First operand 246 states and 248 transitions. Second operand 39 states. [2020-10-12 10:03:36,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 10:03:36,600 INFO L93 Difference]: Finished difference Result 421 states and 426 transitions. [2020-10-12 10:03:36,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2020-10-12 10:03:36,601 INFO L78 Accepts]: Start accepts. Automaton has 39 states. Word has length 243 [2020-10-12 10:03:36,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 10:03:36,603 INFO L225 Difference]: With dead ends: 421 [2020-10-12 10:03:36,603 INFO L226 Difference]: Without dead ends: 252 [2020-10-12 10:03:36,605 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=705, Invalid=777, Unknown=0, NotChecked=0, Total=1482 [2020-10-12 10:03:36,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 252 states. [2020-10-12 10:03:36,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 252 to 250. [2020-10-12 10:03:36,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 250 states. [2020-10-12 10:03:36,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 250 states to 250 states and 252 transitions. [2020-10-12 10:03:36,618 INFO L78 Accepts]: Start accepts. Automaton has 250 states and 252 transitions. Word has length 243 [2020-10-12 10:03:36,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 10:03:36,618 INFO L479 AbstractCegarLoop]: Abstraction has 250 states and 252 transitions. [2020-10-12 10:03:36,619 INFO L480 AbstractCegarLoop]: Interpolant automaton has 39 states. [2020-10-12 10:03:36,619 INFO L276 IsEmpty]: Start isEmpty. Operand 250 states and 252 transitions. [2020-10-12 10:03:36,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 248 [2020-10-12 10:03:36,620 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 10:03:36,620 INFO L422 BasicCegarLoop]: trace histogram [36, 36, 36, 36, 12, 12, 12, 11, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 10:03:36,621 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2020-10-12 10:03:36,621 INFO L427 AbstractCegarLoop]: === Iteration 48 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 10:03:36,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 10:03:36,621 INFO L82 PathProgramCache]: Analyzing trace with hash 1711327731, now seen corresponding path program 46 times [2020-10-12 10:03:36,621 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 10:03:36,621 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [580038061] [2020-10-12 10:03:36,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 10:03:36,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:03:36,663 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:03:36,736 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:03:41,649 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:03:41,649 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 277 [2020-10-12 10:03:41,649 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 10:03:41,649 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-12 10:03:41,650 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:03:41,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 38 [2020-10-12 10:03:41,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-12 10:03:41,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-12 10:03:41,650 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:03:42,591 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 10:03:42,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:03:42,593 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:03:42,594 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:03:42,594 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:03:42,594 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:03:42,594 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:03:42,594 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:03:42,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:03:42,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:03:42,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:03:42,595 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:03:42,595 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2020-10-12 10:03:42,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:03:42,596 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:03:42,597 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:03:42,597 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:03:42,597 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:03:42,597 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 10:03:42,597 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:03:42,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:03:42,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:03:42,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:03:42,597 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:03:42,598 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2020-10-12 10:03:42,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:03:42,599 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:03:42,599 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:03:42,599 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:03:42,599 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:03:42,599 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 10:03:42,599 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:03:42,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:03:42,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:03:42,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:03:42,600 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:03:42,600 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2020-10-12 10:03:42,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:03:42,601 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:03:42,601 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:03:42,602 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:03:42,602 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:03:42,602 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 10:03:42,602 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:03:42,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:03:42,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:03:42,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:03:42,602 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:03:42,603 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2020-10-12 10:03:42,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:03:42,603 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:03:42,604 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:03:42,604 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:03:42,604 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:03:42,604 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 10:03:42,604 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:03:42,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:03:42,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:03:42,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:03:42,605 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:03:42,605 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2020-10-12 10:03:42,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:03:42,606 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:03:42,606 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:03:42,607 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:03:42,607 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:03:42,607 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 10:03:42,607 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:03:42,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:03:42,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:03:42,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:03:42,607 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:03:42,608 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2020-10-12 10:03:42,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:03:42,608 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:03:42,609 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:03:42,609 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:03:42,609 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:03:42,609 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 10:03:42,609 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:03:42,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:03:42,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:03:42,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:03:42,610 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:03:42,610 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2020-10-12 10:03:42,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:03:42,611 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:03:42,611 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:03:42,611 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:03:42,612 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:03:42,612 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 10:03:42,612 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:03:42,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:03:42,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:03:42,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:03:42,612 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:03:42,613 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2020-10-12 10:03:42,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:03:42,613 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:03:42,614 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:03:42,614 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:03:42,614 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:03:42,614 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 10:03:42,614 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:03:42,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:03:42,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:03:42,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:03:42,615 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:03:42,615 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2020-10-12 10:03:42,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:03:42,616 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:03:42,616 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:03:42,616 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:03:42,617 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:03:42,617 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 10:03:42,617 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:03:42,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:03:42,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:03:42,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:03:42,617 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:03:42,618 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-12 10:03:42,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:03:42,618 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:03:42,619 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:03:42,619 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:03:42,619 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:03:42,619 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 10:03:42,619 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:03:42,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:03:42,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:03:42,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:03:42,620 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:03:42,620 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2020-10-12 10:03:42,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:03:42,621 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:03:42,621 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:03:42,621 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:03:42,621 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:03:42,621 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 10:03:42,622 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:03:42,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:03:42,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:03:42,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:03:42,622 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:03:42,648 INFO L134 CoverageAnalysis]: Checked inductivity of 3076 backedges. 22 proven. 1296 refuted. 0 times theorem prover too weak. 1758 trivial. 0 not checked. [2020-10-12 10:03:42,648 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [580038061] [2020-10-12 10:03:42,649 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 10:03:42,649 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [40] total 40 [2020-10-12 10:03:42,649 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1973370094] [2020-10-12 10:03:42,649 INFO L459 AbstractCegarLoop]: Interpolant automaton has 40 states [2020-10-12 10:03:42,650 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 10:03:42,650 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2020-10-12 10:03:42,651 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=743, Invalid=817, Unknown=0, NotChecked=0, Total=1560 [2020-10-12 10:03:42,651 INFO L87 Difference]: Start difference. First operand 250 states and 252 transitions. Second operand 40 states. [2020-10-12 10:03:43,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 10:03:43,155 INFO L93 Difference]: Finished difference Result 427 states and 432 transitions. [2020-10-12 10:03:43,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2020-10-12 10:03:43,156 INFO L78 Accepts]: Start accepts. Automaton has 40 states. Word has length 247 [2020-10-12 10:03:43,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 10:03:43,158 INFO L225 Difference]: With dead ends: 427 [2020-10-12 10:03:43,158 INFO L226 Difference]: Without dead ends: 256 [2020-10-12 10:03:43,160 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=743, Invalid=817, Unknown=0, NotChecked=0, Total=1560 [2020-10-12 10:03:43,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 256 states. [2020-10-12 10:03:43,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 256 to 254. [2020-10-12 10:03:43,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 254 states. [2020-10-12 10:03:43,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 254 states to 254 states and 256 transitions. [2020-10-12 10:03:43,173 INFO L78 Accepts]: Start accepts. Automaton has 254 states and 256 transitions. Word has length 247 [2020-10-12 10:03:43,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 10:03:43,173 INFO L479 AbstractCegarLoop]: Abstraction has 254 states and 256 transitions. [2020-10-12 10:03:43,173 INFO L480 AbstractCegarLoop]: Interpolant automaton has 40 states. [2020-10-12 10:03:43,173 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states and 256 transitions. [2020-10-12 10:03:43,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 252 [2020-10-12 10:03:43,175 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 10:03:43,175 INFO L422 BasicCegarLoop]: trace histogram [37, 37, 37, 37, 12, 12, 12, 11, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 10:03:43,175 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2020-10-12 10:03:43,175 INFO L427 AbstractCegarLoop]: === Iteration 49 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 10:03:43,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 10:03:43,176 INFO L82 PathProgramCache]: Analyzing trace with hash 1155517039, now seen corresponding path program 47 times [2020-10-12 10:03:43,176 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 10:03:43,176 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1594784853] [2020-10-12 10:03:43,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 10:03:43,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:03:43,217 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:03:43,285 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:03:48,271 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:03:48,271 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 281 [2020-10-12 10:03:48,271 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 10:03:48,271 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5072 [2020-10-12 10:03:48,271 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:03:48,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 39 [2020-10-12 10:03:48,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-12 10:03:48,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-12 10:03:48,272 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:03:49,274 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 10:03:49,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:03:49,276 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:03:49,277 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:03:49,277 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:03:49,278 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:03:49,278 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:03:49,278 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:03:49,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:03:49,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:03:49,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:03:49,279 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:03:49,279 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2020-10-12 10:03:49,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:03:49,280 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:03:49,281 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:03:49,281 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:03:49,281 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:03:49,281 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 10:03:49,281 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:03:49,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:03:49,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:03:49,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:03:49,282 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:03:49,282 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2020-10-12 10:03:49,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:03:49,283 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:03:49,283 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:03:49,284 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:03:49,284 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:03:49,284 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 10:03:49,284 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:03:49,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:03:49,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:03:49,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:03:49,285 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:03:49,285 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2020-10-12 10:03:49,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:03:49,286 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:03:49,287 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:03:49,287 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:03:49,287 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:03:49,287 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 10:03:49,287 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:03:49,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:03:49,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:03:49,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:03:49,288 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:03:49,289 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2020-10-12 10:03:49,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:03:49,289 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:03:49,290 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:03:49,290 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:03:49,290 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:03:49,290 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 10:03:49,290 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:03:49,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:03:49,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:03:49,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:03:49,291 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:03:49,291 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2020-10-12 10:03:49,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:03:49,292 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:03:49,292 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:03:49,292 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:03:49,292 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:03:49,292 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 10:03:49,292 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:03:49,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:03:49,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:03:49,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:03:49,293 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:03:49,293 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2020-10-12 10:03:49,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:03:49,294 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:03:49,295 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:03:49,295 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:03:49,295 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:03:49,295 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:03:49,296 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:03:49,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:03:49,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:03:49,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:03:49,296 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:03:49,297 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2020-10-12 10:03:49,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:03:49,297 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:03:49,298 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:03:49,298 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:03:49,298 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:03:49,298 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 10:03:49,298 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:03:49,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:03:49,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:03:49,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:03:49,299 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:03:49,299 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2020-10-12 10:03:49,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:03:49,300 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:03:49,301 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:03:49,301 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:03:49,301 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:03:49,302 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 10:03:49,302 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:03:49,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:03:49,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:03:49,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:03:49,302 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:03:49,303 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2020-10-12 10:03:49,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:03:49,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:03:49,305 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:03:49,305 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:03:49,305 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:03:49,306 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 10:03:49,306 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:03:49,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:03:49,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:03:49,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:03:49,306 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:03:49,307 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2020-10-12 10:03:49,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:03:49,308 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:03:49,309 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:03:49,309 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:03:49,310 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:03:49,310 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:03:49,310 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:03:49,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:03:49,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:03:49,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:03:49,311 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:03:49,312 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2020-10-12 10:03:49,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:03:49,313 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:03:49,313 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:03:49,314 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:03:49,314 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:03:49,314 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 10:03:49,314 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:03:49,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:03:49,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 10:03:49,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:03:49,315 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:03:49,357 INFO L134 CoverageAnalysis]: Checked inductivity of 3222 backedges. 22 proven. 1369 refuted. 0 times theorem prover too weak. 1831 trivial. 0 not checked. [2020-10-12 10:03:49,357 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1594784853] [2020-10-12 10:03:49,357 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 10:03:49,357 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [41] total 41 [2020-10-12 10:03:49,358 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [71978835] [2020-10-12 10:03:49,358 INFO L459 AbstractCegarLoop]: Interpolant automaton has 41 states [2020-10-12 10:03:49,358 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 10:03:49,358 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2020-10-12 10:03:49,359 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=782, Invalid=858, Unknown=0, NotChecked=0, Total=1640 [2020-10-12 10:03:49,359 INFO L87 Difference]: Start difference. First operand 254 states and 256 transitions. Second operand 41 states.