/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=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.4 --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/eca-rers2012/Problem03_label20.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-14 00:50:08,537 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-14 00:50:08,543 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-14 00:50:08,583 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-14 00:50:08,583 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-14 00:50:08,591 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-14 00:50:08,592 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-14 00:50:08,595 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-14 00:50:08,598 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-14 00:50:08,600 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-14 00:50:08,601 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-14 00:50:08,603 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-14 00:50:08,604 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-14 00:50:08,606 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-14 00:50:08,609 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-14 00:50:08,611 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-14 00:50:08,613 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-14 00:50:08,614 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-14 00:50:08,615 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-14 00:50:08,617 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-14 00:50:08,618 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-14 00:50:08,622 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-14 00:50:08,623 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-14 00:50:08,624 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-14 00:50:08,626 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-14 00:50:08,626 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-14 00:50:08,626 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-14 00:50:08,627 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-14 00:50:08,628 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-14 00:50:08,628 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-14 00:50:08,629 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-14 00:50:08,629 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-14 00:50:08,630 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-14 00:50:08,631 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-14 00:50:08,632 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-14 00:50:08,632 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-14 00:50:08,632 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-14 00:50:08,633 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-14 00:50:08,633 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-14 00:50:08,634 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-14 00:50:08,634 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-14 00:50:08,635 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 [2020-10-14 00:50:08,657 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-14 00:50:08,658 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-14 00:50:08,659 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-14 00:50:08,659 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-14 00:50:08,659 INFO L138 SettingsManager]: * Use SBE=true [2020-10-14 00:50:08,660 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-14 00:50:08,660 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-14 00:50:08,660 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-14 00:50:08,660 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-14 00:50:08,660 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-14 00:50:08,661 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-14 00:50:08,661 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-14 00:50:08,661 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-14 00:50:08,661 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-14 00:50:08,661 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-14 00:50:08,662 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-14 00:50:08,662 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-14 00:50:08,662 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-14 00:50:08,662 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-14 00:50:08,662 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-14 00:50:08,663 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-14 00:50:08,663 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 00:50:08,663 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-14 00:50:08,663 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-14 00:50:08,663 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-14 00:50:08,664 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-14 00:50:08,664 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-14 00:50:08,664 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-14 00:50:08,664 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-14 00:50:08,664 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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; [2020-10-14 00:50:08,983 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-14 00:50:08,994 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-14 00:50:08,998 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-14 00:50:08,999 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-14 00:50:09,000 INFO L275 PluginConnector]: CDTParser initialized [2020-10-14 00:50:09,000 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem03_label20.c [2020-10-14 00:50:09,064 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b37dd0e0a/5616a6aca24b479198cf05760ba237a4/FLAG7d3cff493 [2020-10-14 00:50:09,669 INFO L306 CDTParser]: Found 1 translation units. [2020-10-14 00:50:09,670 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem03_label20.c [2020-10-14 00:50:09,686 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b37dd0e0a/5616a6aca24b479198cf05760ba237a4/FLAG7d3cff493 [2020-10-14 00:50:09,869 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b37dd0e0a/5616a6aca24b479198cf05760ba237a4 [2020-10-14 00:50:09,877 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-14 00:50:09,879 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-14 00:50:09,880 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-14 00:50:09,880 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-14 00:50:09,883 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-14 00:50:09,884 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 12:50:09" (1/1) ... [2020-10-14 00:50:09,887 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3b8f57a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:50:09, skipping insertion in model container [2020-10-14 00:50:09,887 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 12:50:09" (1/1) ... [2020-10-14 00:50:09,895 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-14 00:50:09,971 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-14 00:50:10,787 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 00:50:10,794 INFO L203 MainTranslator]: Completed pre-run [2020-10-14 00:50:11,079 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 00:50:11,103 INFO L208 MainTranslator]: Completed translation [2020-10-14 00:50:11,104 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:50:11 WrapperNode [2020-10-14 00:50:11,104 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-14 00:50:11,105 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-14 00:50:11,105 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-14 00:50:11,105 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-14 00:50:11,120 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:50:11" (1/1) ... [2020-10-14 00:50:11,121 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:50:11" (1/1) ... [2020-10-14 00:50:11,169 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:50:11" (1/1) ... [2020-10-14 00:50:11,170 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:50:11" (1/1) ... [2020-10-14 00:50:11,245 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:50:11" (1/1) ... [2020-10-14 00:50:11,278 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:50:11" (1/1) ... [2020-10-14 00:50:11,294 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:50:11" (1/1) ... [2020-10-14 00:50:11,315 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-14 00:50:11,316 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-14 00:50:11,316 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-14 00:50:11,316 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-14 00:50:11,317 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:50:11" (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 [2020-10-14 00:50:11,375 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-14 00:50:11,376 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-14 00:50:11,376 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-14 00:50:11,376 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-14 00:50:11,376 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-14 00:50:11,376 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-14 00:50:11,377 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-14 00:50:11,377 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-14 00:50:11,377 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-14 00:50:11,377 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-14 00:50:11,377 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-14 00:50:13,298 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-14 00:50:13,298 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-14 00:50:13,306 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 12:50:13 BoogieIcfgContainer [2020-10-14 00:50:13,306 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-14 00:50:13,308 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-14 00:50:13,308 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-14 00:50:13,311 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-14 00:50:13,312 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 12:50:09" (1/3) ... [2020-10-14 00:50:13,313 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2203c59e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 12:50:13, skipping insertion in model container [2020-10-14 00:50:13,313 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:50:11" (2/3) ... [2020-10-14 00:50:13,314 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2203c59e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 12:50:13, skipping insertion in model container [2020-10-14 00:50:13,314 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 12:50:13" (3/3) ... [2020-10-14 00:50:13,316 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem03_label20.c [2020-10-14 00:50:13,331 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-14 00:50:13,341 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-14 00:50:13,360 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-14 00:50:13,391 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-14 00:50:13,392 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-14 00:50:13,392 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-14 00:50:13,392 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-14 00:50:13,392 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-14 00:50:13,393 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-14 00:50:13,393 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-14 00:50:13,393 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-14 00:50:13,426 INFO L276 IsEmpty]: Start isEmpty. Operand 311 states. [2020-10-14 00:50:13,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2020-10-14 00:50:13,444 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 00:50:13,446 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 00:50:13,446 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 00:50:13,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 00:50:13,455 INFO L82 PathProgramCache]: Analyzing trace with hash -1111683352, now seen corresponding path program 1 times [2020-10-14 00:50:13,467 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 00:50:13,468 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1538649350] [2020-10-14 00:50:13,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 00:50:13,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:50:14,165 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:50:14,647 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:50:17,993 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:50:17,993 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 209 [2020-10-14 00:50:17,994 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 00:50:17,994 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4016 [2020-10-14 00:50:17,997 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:50:17,998 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:50:17,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 00:50:17,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 00:50:17,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 203 [2020-10-14 00:50:17,999 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-14 00:50:18,390 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-14 00:50:18,393 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 00:50:18,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:50:18,406 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:50:18,427 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:50:18,427 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 00:50:18,427 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:50:18,427 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-14 00:50:18,428 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:50:18,428 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:50:18,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:50:18,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:50:18,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 00:50:18,429 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:50:18,617 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 00:50:18,618 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1538649350] [2020-10-14 00:50:18,620 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 00:50:18,621 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-14 00:50:18,621 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [831396616] [2020-10-14 00:50:18,628 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-14 00:50:18,629 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 00:50:18,642 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-14 00:50:18,642 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 00:50:18,645 INFO L87 Difference]: Start difference. First operand 311 states. Second operand 4 states. [2020-10-14 00:50:18,835 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 131 [2020-10-14 00:50:21,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 00:50:21,534 INFO L93 Difference]: Finished difference Result 853 states and 1500 transitions. [2020-10-14 00:50:21,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 00:50:21,537 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 201 [2020-10-14 00:50:21,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 00:50:21,558 INFO L225 Difference]: With dead ends: 853 [2020-10-14 00:50:21,559 INFO L226 Difference]: Without dead ends: 465 [2020-10-14 00:50:21,576 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-14 00:50:21,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 465 states. [2020-10-14 00:50:21,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 465 to 460. [2020-10-14 00:50:21,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 460 states. [2020-10-14 00:50:21,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 460 states to 460 states and 648 transitions. [2020-10-14 00:50:21,662 INFO L78 Accepts]: Start accepts. Automaton has 460 states and 648 transitions. Word has length 201 [2020-10-14 00:50:21,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 00:50:21,663 INFO L479 AbstractCegarLoop]: Abstraction has 460 states and 648 transitions. [2020-10-14 00:50:21,663 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-14 00:50:21,663 INFO L276 IsEmpty]: Start isEmpty. Operand 460 states and 648 transitions. [2020-10-14 00:50:21,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2020-10-14 00:50:21,671 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 00:50:21,672 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 00:50:21,672 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-14 00:50:21,673 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 00:50:21,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 00:50:21,673 INFO L82 PathProgramCache]: Analyzing trace with hash -604412164, now seen corresponding path program 1 times [2020-10-14 00:50:21,673 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 00:50:21,674 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [611542221] [2020-10-14 00:50:21,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 00:50:21,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:50:21,838 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:50:21,986 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:50:24,318 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:50:25,469 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:50:25,469 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 223 [2020-10-14 00:50:25,470 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 00:50:25,470 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3698 [2020-10-14 00:50:25,471 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:50:25,471 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:50:25,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 00:50:25,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-10-14 00:50:25,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 200 [2020-10-14 00:50:25,472 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:50:25,892 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-14 00:50:25,894 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 00:50:25,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:50:25,901 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:50:25,910 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:50:25,910 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 00:50:25,911 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:50:25,911 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-14 00:50:25,912 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:50:25,912 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:50:25,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:50:25,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:50:25,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:50:25,913 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:50:26,019 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 00:50:26,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:50:26,034 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:50:26,056 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:50:26,056 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 00:50:26,057 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:50:26,057 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-14 00:50:26,057 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:50:26,057 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:50:26,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:50:26,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:50:26,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 00:50:26,058 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:50:26,271 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 00:50:26,272 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [611542221] [2020-10-14 00:50:26,272 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 00:50:26,273 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 00:50:26,273 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [184724822] [2020-10-14 00:50:26,275 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 00:50:26,276 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 00:50:26,276 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 00:50:26,276 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 00:50:26,277 INFO L87 Difference]: Start difference. First operand 460 states and 648 transitions. Second operand 5 states. [2020-10-14 00:50:26,542 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-10-14 00:50:29,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 00:50:29,201 INFO L93 Difference]: Finished difference Result 1361 states and 1940 transitions. [2020-10-14 00:50:29,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 00:50:29,202 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 213 [2020-10-14 00:50:29,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 00:50:29,212 INFO L225 Difference]: With dead ends: 1361 [2020-10-14 00:50:29,213 INFO L226 Difference]: Without dead ends: 907 [2020-10-14 00:50:29,215 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-14 00:50:29,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 907 states. [2020-10-14 00:50:29,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 907 to 889. [2020-10-14 00:50:29,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 889 states. [2020-10-14 00:50:29,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 889 states to 889 states and 1223 transitions. [2020-10-14 00:50:29,274 INFO L78 Accepts]: Start accepts. Automaton has 889 states and 1223 transitions. Word has length 213 [2020-10-14 00:50:29,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 00:50:29,275 INFO L479 AbstractCegarLoop]: Abstraction has 889 states and 1223 transitions. [2020-10-14 00:50:29,276 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 00:50:29,276 INFO L276 IsEmpty]: Start isEmpty. Operand 889 states and 1223 transitions. [2020-10-14 00:50:29,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2020-10-14 00:50:29,282 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 00:50:29,282 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 00:50:29,283 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-14 00:50:29,283 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 00:50:29,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 00:50:29,283 INFO L82 PathProgramCache]: Analyzing trace with hash 2138321452, now seen corresponding path program 1 times [2020-10-14 00:50:29,284 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 00:50:29,284 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [673287265] [2020-10-14 00:50:29,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 00:50:29,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:50:29,381 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:50:29,502 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:50:31,267 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:50:34,350 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:50:34,353 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 235 [2020-10-14 00:50:34,354 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 00:50:34,354 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5008 [2020-10-14 00:50:34,354 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:50:34,355 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:50:34,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 00:50:34,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-10-14 00:50:34,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 200 [2020-10-14 00:50:34,355 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:50:34,597 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 00:50:34,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:50:34,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:50:34,606 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:50:34,607 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 00:50:34,607 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:50:34,607 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 00:50:34,607 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:50:34,608 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:50:34,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:50:34,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:50:34,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:50:34,609 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:50:34,694 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 00:50:34,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:50:34,701 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:50:34,715 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:50:34,715 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 00:50:34,716 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:50:34,716 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-14 00:50:34,716 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:50:34,717 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:50:34,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:50:34,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:50:34,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:50:34,718 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:50:34,726 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-14 00:50:34,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:50:34,742 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:50:34,765 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:50:34,765 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 00:50:34,766 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:50:34,766 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-14 00:50:34,766 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:50:34,766 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:50:34,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:50:34,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:50:34,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 00:50:34,767 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:50:34,921 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 17 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-10-14 00:50:34,922 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [673287265] [2020-10-14 00:50:34,923 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 00:50:34,923 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 00:50:34,923 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1054934207] [2020-10-14 00:50:34,925 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 00:50:34,925 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 00:50:34,925 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 00:50:34,927 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 00:50:34,928 INFO L87 Difference]: Start difference. First operand 889 states and 1223 transitions. Second operand 5 states. [2020-10-14 00:50:35,232 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2020-10-14 00:50:38,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 00:50:38,077 INFO L93 Difference]: Finished difference Result 2198 states and 3151 transitions. [2020-10-14 00:50:38,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 00:50:38,078 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 223 [2020-10-14 00:50:38,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 00:50:38,090 INFO L225 Difference]: With dead ends: 2198 [2020-10-14 00:50:38,090 INFO L226 Difference]: Without dead ends: 1315 [2020-10-14 00:50:38,093 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-14 00:50:38,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1315 states. [2020-10-14 00:50:38,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1315 to 1309. [2020-10-14 00:50:38,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1309 states. [2020-10-14 00:50:38,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1309 states to 1309 states and 1858 transitions. [2020-10-14 00:50:38,158 INFO L78 Accepts]: Start accepts. Automaton has 1309 states and 1858 transitions. Word has length 223 [2020-10-14 00:50:38,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 00:50:38,159 INFO L479 AbstractCegarLoop]: Abstraction has 1309 states and 1858 transitions. [2020-10-14 00:50:38,160 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 00:50:38,160 INFO L276 IsEmpty]: Start isEmpty. Operand 1309 states and 1858 transitions. [2020-10-14 00:50:38,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2020-10-14 00:50:38,176 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 00:50:38,176 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 00:50:38,177 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-14 00:50:38,177 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 00:50:38,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 00:50:38,178 INFO L82 PathProgramCache]: Analyzing trace with hash 600022311, now seen corresponding path program 1 times [2020-10-14 00:50:38,179 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 00:50:38,179 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [974960282] [2020-10-14 00:50:38,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 00:50:38,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:50:38,264 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:50:38,358 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:50:40,221 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:50:40,553 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:50:42,919 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:50:43,270 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:50:43,271 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 242 [2020-10-14 00:50:43,271 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 00:50:43,271 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5035 [2020-10-14 00:50:43,271 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:50:43,271 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:50:43,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 00:50:43,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 41 [2020-10-14 00:50:43,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 200 [2020-10-14 00:50:43,272 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:50:43,465 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-14 00:50:43,465 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 00:50:43,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:50:43,470 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:50:43,475 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:50:43,476 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 00:50:43,476 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:50:43,476 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 00:50:43,476 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:50:43,477 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:50:43,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:50:43,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:50:43,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:50:43,477 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:50:43,553 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 00:50:43,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:50:43,558 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:50:43,564 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:50:43,565 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 00:50:43,565 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:50:43,565 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 00:50:43,565 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:50:43,566 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:50:43,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:50:43,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:50:43,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:50:43,566 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:50:43,571 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-14 00:50:43,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:50:43,583 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:50:43,605 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:50:43,606 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-14 00:50:43,606 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:50:43,606 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-14 00:50:43,606 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:50:43,606 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:50:43,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:50:43,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:50:43,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-14 00:50:43,607 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:50:43,707 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 24 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-10-14 00:50:43,707 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [974960282] [2020-10-14 00:50:43,708 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 00:50:43,708 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 00:50:43,708 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2051584921] [2020-10-14 00:50:43,709 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 00:50:43,709 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 00:50:43,710 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 00:50:43,710 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 00:50:43,710 INFO L87 Difference]: Start difference. First operand 1309 states and 1858 transitions. Second operand 5 states. [2020-10-14 00:50:43,948 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2020-10-14 00:50:46,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 00:50:46,399 INFO L93 Difference]: Finished difference Result 3878 states and 5604 transitions. [2020-10-14 00:50:46,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 00:50:46,401 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 230 [2020-10-14 00:50:46,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 00:50:46,418 INFO L225 Difference]: With dead ends: 3878 [2020-10-14 00:50:46,418 INFO L226 Difference]: Without dead ends: 2575 [2020-10-14 00:50:46,423 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-14 00:50:46,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2575 states. [2020-10-14 00:50:46,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2575 to 2566. [2020-10-14 00:50:46,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2566 states. [2020-10-14 00:50:46,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2566 states to 2566 states and 3558 transitions. [2020-10-14 00:50:46,514 INFO L78 Accepts]: Start accepts. Automaton has 2566 states and 3558 transitions. Word has length 230 [2020-10-14 00:50:46,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 00:50:46,515 INFO L479 AbstractCegarLoop]: Abstraction has 2566 states and 3558 transitions. [2020-10-14 00:50:46,515 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 00:50:46,515 INFO L276 IsEmpty]: Start isEmpty. Operand 2566 states and 3558 transitions. [2020-10-14 00:50:46,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 260 [2020-10-14 00:50:46,528 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 00:50:46,528 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 00:50:46,528 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-14 00:50:46,529 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 00:50:46,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 00:50:46,530 INFO L82 PathProgramCache]: Analyzing trace with hash -1394524858, now seen corresponding path program 1 times [2020-10-14 00:50:46,530 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 00:50:46,531 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [465652897] [2020-10-14 00:50:46,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 00:50:46,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:50:46,632 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:50:47,113 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:50:49,581 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:50:49,581 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 269 [2020-10-14 00:50:49,581 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 00:50:49,582 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2984 [2020-10-14 00:50:49,582 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:50:49,585 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:50:49,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 00:50:49,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 68 [2020-10-14 00:50:49,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 200 [2020-10-14 00:50:49,586 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-14 00:50:49,862 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 00:50:49,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:50:49,868 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:50:49,874 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:50:49,874 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 00:50:49,874 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:50:49,875 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 00:50:49,875 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:50:49,875 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:50:49,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:50:49,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:50:49,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:50:49,876 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:50:49,948 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 00:50:49,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:50:49,991 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:50:50,078 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:50:50,079 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 59 [2020-10-14 00:50:50,079 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:50:50,080 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 102 [2020-10-14 00:50:50,080 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:50:50,080 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:50:50,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:50:50,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:50:50,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-14 00:50:50,082 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:50:50,324 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 54 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 00:50:50,325 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [465652897] [2020-10-14 00:50:50,326 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 00:50:50,326 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-14 00:50:50,326 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2012937909] [2020-10-14 00:50:50,327 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-14 00:50:50,328 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 00:50:50,328 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-14 00:50:50,328 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-14 00:50:50,329 INFO L87 Difference]: Start difference. First operand 2566 states and 3558 transitions. Second operand 6 states. [2020-10-14 00:50:50,529 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2020-10-14 00:50:51,237 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-10-14 00:50:54,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 00:50:54,357 INFO L93 Difference]: Finished difference Result 9956 states and 14290 transitions. [2020-10-14 00:50:54,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-14 00:50:54,358 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 259 [2020-10-14 00:50:54,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 00:50:54,406 INFO L225 Difference]: With dead ends: 9956 [2020-10-14 00:50:54,407 INFO L226 Difference]: Without dead ends: 7396 [2020-10-14 00:50:54,417 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-10-14 00:50:54,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7396 states. [2020-10-14 00:50:54,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7396 to 7388. [2020-10-14 00:50:54,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7388 states. [2020-10-14 00:50:54,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7388 states to 7388 states and 9932 transitions. [2020-10-14 00:50:54,668 INFO L78 Accepts]: Start accepts. Automaton has 7388 states and 9932 transitions. Word has length 259 [2020-10-14 00:50:54,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 00:50:54,669 INFO L479 AbstractCegarLoop]: Abstraction has 7388 states and 9932 transitions. [2020-10-14 00:50:54,669 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-14 00:50:54,669 INFO L276 IsEmpty]: Start isEmpty. Operand 7388 states and 9932 transitions. [2020-10-14 00:50:54,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 300 [2020-10-14 00:50:54,693 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 00:50:54,694 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 00:50:54,694 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-14 00:50:54,694 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 00:50:54,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 00:50:54,695 INFO L82 PathProgramCache]: Analyzing trace with hash -46907342, now seen corresponding path program 1 times [2020-10-14 00:50:54,695 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 00:50:54,696 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1171382121] [2020-10-14 00:50:54,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 00:50:54,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:50:54,804 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:50:54,936 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:50:57,159 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:50:59,785 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:50:59,785 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 311 [2020-10-14 00:50:59,785 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 00:50:59,785 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5021 [2020-10-14 00:50:59,786 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:50:59,786 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:50:59,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 00:50:59,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 110 [2020-10-14 00:50:59,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 200 [2020-10-14 00:50:59,786 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:51:00,018 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-14 00:51:00,019 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 00:51:00,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:51:00,025 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:51:00,038 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:51:00,038 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 00:51:00,038 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:51:00,039 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 00:51:00,039 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:51:00,039 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:51:00,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:51:00,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:51:00,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:51:00,040 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:51:00,123 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 00:51:00,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:51:00,129 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:51:00,138 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:51:00,138 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 00:51:00,138 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:51:00,139 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-14 00:51:00,139 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:51:00,139 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:51:00,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:51:00,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:51:00,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:51:00,140 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:51:00,144 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-14 00:51:00,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:51:00,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:51:00,323 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:51:00,323 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-14 00:51:00,323 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:51:00,324 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 139 [2020-10-14 00:51:00,324 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:51:00,324 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:51:00,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:51:00,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:51:00,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-10-14 00:51:00,325 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:51:00,474 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 93 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-10-14 00:51:00,474 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1171382121] [2020-10-14 00:51:00,475 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 00:51:00,478 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 00:51:00,478 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1788276622] [2020-10-14 00:51:00,479 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 00:51:00,479 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 00:51:00,479 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 00:51:00,479 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 00:51:00,479 INFO L87 Difference]: Start difference. First operand 7388 states and 9932 transitions. Second operand 5 states. [2020-10-14 00:51:00,711 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2020-10-14 00:51:03,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 00:51:03,238 INFO L93 Difference]: Finished difference Result 19795 states and 27618 transitions. [2020-10-14 00:51:03,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 00:51:03,238 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 299 [2020-10-14 00:51:03,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 00:51:03,317 INFO L225 Difference]: With dead ends: 19795 [2020-10-14 00:51:03,317 INFO L226 Difference]: Without dead ends: 12413 [2020-10-14 00:51:03,341 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-14 00:51:03,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12413 states. [2020-10-14 00:51:03,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12413 to 12408. [2020-10-14 00:51:03,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12408 states. [2020-10-14 00:51:03,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12408 states to 12408 states and 16664 transitions. [2020-10-14 00:51:03,661 INFO L78 Accepts]: Start accepts. Automaton has 12408 states and 16664 transitions. Word has length 299 [2020-10-14 00:51:03,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 00:51:03,662 INFO L479 AbstractCegarLoop]: Abstraction has 12408 states and 16664 transitions. [2020-10-14 00:51:03,662 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 00:51:03,662 INFO L276 IsEmpty]: Start isEmpty. Operand 12408 states and 16664 transitions. [2020-10-14 00:51:03,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 304 [2020-10-14 00:51:03,704 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 00:51:03,705 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 00:51:03,705 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-14 00:51:03,705 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 00:51:03,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 00:51:03,705 INFO L82 PathProgramCache]: Analyzing trace with hash -1099259505, now seen corresponding path program 1 times [2020-10-14 00:51:03,706 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 00:51:03,707 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1985438743] [2020-10-14 00:51:03,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 00:51:03,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:51:03,781 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:51:03,846 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:51:04,159 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:51:04,574 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:51:04,747 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:51:06,475 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:51:08,769 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:51:08,769 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 317 [2020-10-14 00:51:08,769 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-14 00:51:08,770 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5013 [2020-10-14 00:51:08,770 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:51:08,770 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:51:08,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 00:51:08,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 116 [2020-10-14 00:51:08,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 151 [2020-10-14 00:51:08,771 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:51:09,052 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 00:51:09,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:51:09,057 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:51:09,061 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:51:09,061 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 00:51:09,062 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:51:09,062 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 00:51:09,062 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:51:09,062 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:51:09,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:51:09,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:51:09,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:51:09,063 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:51:09,133 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 00:51:09,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:51:09,138 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:51:09,143 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:51:09,143 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 00:51:09,143 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:51:09,143 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 00:51:09,143 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:51:09,143 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:51:09,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:51:09,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:51:09,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:51:09,144 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:51:09,147 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-14 00:51:09,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:51:09,150 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:51:09,155 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:51:09,156 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 00:51:09,156 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:51:09,156 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 00:51:09,156 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:51:09,156 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:51:09,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:51:09,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:51:09,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:51:09,157 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:51:09,160 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-14 00:51:09,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:51:09,208 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:51:09,303 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:51:09,303 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-14 00:51:09,304 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:51:09,304 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 115 [2020-10-14 00:51:09,304 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:51:09,304 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:51:09,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:51:09,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:51:09,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-10-14 00:51:09,305 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:51:09,744 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 94 proven. 3 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2020-10-14 00:51:09,744 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1985438743] [2020-10-14 00:51:09,745 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 00:51:09,745 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 00:51:09,745 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [50924885] [2020-10-14 00:51:09,745 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 00:51:09,745 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 00:51:09,746 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 00:51:09,746 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 00:51:09,746 INFO L87 Difference]: Start difference. First operand 12408 states and 16664 transitions. Second operand 5 states. [2020-10-14 00:51:10,826 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 139 [2020-10-14 00:51:12,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 00:51:12,433 INFO L93 Difference]: Finished difference Result 24962 states and 33673 transitions. [2020-10-14 00:51:12,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 00:51:12,436 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 303 [2020-10-14 00:51:12,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 00:51:12,481 INFO L225 Difference]: With dead ends: 24962 [2020-10-14 00:51:12,481 INFO L226 Difference]: Without dead ends: 12532 [2020-10-14 00:51:12,513 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-14 00:51:12,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12532 states. [2020-10-14 00:51:12,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12532 to 12528. [2020-10-14 00:51:12,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12528 states. [2020-10-14 00:51:12,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12528 states to 12528 states and 16792 transitions. [2020-10-14 00:51:12,815 INFO L78 Accepts]: Start accepts. Automaton has 12528 states and 16792 transitions. Word has length 303 [2020-10-14 00:51:12,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 00:51:12,816 INFO L479 AbstractCegarLoop]: Abstraction has 12528 states and 16792 transitions. [2020-10-14 00:51:12,816 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 00:51:12,816 INFO L276 IsEmpty]: Start isEmpty. Operand 12528 states and 16792 transitions. [2020-10-14 00:51:12,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 306 [2020-10-14 00:51:12,862 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 00:51:12,862 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 00:51:12,862 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-14 00:51:12,862 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 00:51:12,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 00:51:12,863 INFO L82 PathProgramCache]: Analyzing trace with hash 2025208897, now seen corresponding path program 1 times [2020-10-14 00:51:12,863 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 00:51:12,863 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1782428331] [2020-10-14 00:51:12,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 00:51:12,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:51:12,986 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:51:13,127 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:51:15,219 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:51:16,377 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:51:17,523 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:51:17,523 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 319 [2020-10-14 00:51:17,523 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 00:51:17,523 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4583 [2020-10-14 00:51:17,524 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:51:17,524 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:51:17,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 00:51:17,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-10-14 00:51:17,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-10-14 00:51:17,524 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:51:17,678 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-14 00:51:17,679 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 00:51:17,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:51:17,688 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:51:17,693 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:51:17,693 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 00:51:17,693 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:51:17,694 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 00:51:17,694 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:51:17,694 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:51:17,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:51:17,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:51:17,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:51:17,696 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 00:51:17,772 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 00:51:17,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:51:17,780 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:51:17,792 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:51:17,792 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 00:51:17,792 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:51:17,792 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 00:51:17,792 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:51:17,792 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:51:17,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:51:17,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:51:17,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 00:51:17,793 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:51:17,800 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-14 00:51:17,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:51:17,830 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:51:17,919 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:51:17,919 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 59 [2020-10-14 00:51:17,920 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:51:17,920 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 98 [2020-10-14 00:51:17,920 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:51:17,920 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:51:17,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 00:51:17,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 00:51:17,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-10-14 00:51:17,920 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:51:18,063 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-14 00:51:18,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:51:18,084 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:51:18,107 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:51:18,108 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 35 [2020-10-14 00:51:18,108 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:51:18,108 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-14 00:51:18,108 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:51:18,109 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:51:18,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:51:18,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 32 [2020-10-14 00:51:18,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:51:18,109 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:51:18,441 INFO L134 CoverageAnalysis]: Checked inductivity of 153 backedges. 108 proven. 33 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-10-14 00:51:18,441 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1782428331] [2020-10-14 00:51:18,442 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 00:51:18,442 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 00:51:18,442 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1147378665] [2020-10-14 00:51:18,443 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 00:51:18,444 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 00:51:18,444 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 00:51:18,444 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-14 00:51:18,445 INFO L87 Difference]: Start difference. First operand 12528 states and 16792 transitions. Second operand 7 states. [2020-10-14 00:51:18,735 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 132 [2020-10-14 00:51:20,279 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 134 [2020-10-14 00:51:21,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 00:51:21,886 INFO L93 Difference]: Finished difference Result 29266 states and 42609 transitions. [2020-10-14 00:51:21,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 00:51:21,887 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 305 [2020-10-14 00:51:21,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 00:51:21,999 INFO L225 Difference]: With dead ends: 29266 [2020-10-14 00:51:21,999 INFO L226 Difference]: Without dead ends: 16744 [2020-10-14 00:51:22,037 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-10-14 00:51:22,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16744 states. [2020-10-14 00:51:22,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16744 to 16382. [2020-10-14 00:51:22,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16382 states. [2020-10-14 00:51:22,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16382 states to 16382 states and 22169 transitions. [2020-10-14 00:51:22,601 INFO L78 Accepts]: Start accepts. Automaton has 16382 states and 22169 transitions. Word has length 305 [2020-10-14 00:51:22,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 00:51:22,602 INFO L479 AbstractCegarLoop]: Abstraction has 16382 states and 22169 transitions. [2020-10-14 00:51:22,602 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 00:51:22,602 INFO L276 IsEmpty]: Start isEmpty. Operand 16382 states and 22169 transitions. [2020-10-14 00:51:22,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 319 [2020-10-14 00:51:22,662 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 00:51:22,663 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 00:51:22,663 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-14 00:51:22,663 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 00:51:22,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 00:51:22,664 INFO L82 PathProgramCache]: Analyzing trace with hash 1981150880, now seen corresponding path program 1 times [2020-10-14 00:51:22,664 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 00:51:22,664 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1687516639] [2020-10-14 00:51:22,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 00:51:22,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:51:22,739 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:51:22,816 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:51:22,965 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:51:23,125 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:51:23,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:51:27,752 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:51:27,752 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 336 [2020-10-14 00:51:27,753 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 00:51:27,753 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5035 [2020-10-14 00:51:27,753 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:51:27,753 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:51:27,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 00:51:27,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 59 [2020-10-14 00:51:27,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 41 [2020-10-14 00:51:27,754 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:51:27,908 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-14 00:51:27,909 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 00:51:27,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:51:27,913 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:51:27,916 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:51:27,916 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 00:51:27,917 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:51:27,917 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 00:51:27,917 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:51:27,917 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:51:27,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:51:27,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:51:27,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:51:27,917 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:51:27,993 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 00:51:27,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:51:27,998 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:51:28,003 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:51:28,003 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 00:51:28,003 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:51:28,004 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 00:51:28,004 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:51:28,004 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:51:28,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:51:28,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:51:28,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:51:28,004 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:51:28,008 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-14 00:51:28,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:51:28,016 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:51:28,020 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:51:28,020 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 00:51:28,020 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:51:28,021 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 00:51:28,021 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:51:28,021 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:51:28,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:51:28,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:51:28,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:51:28,021 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:51:28,023 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-14 00:51:28,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:51:28,039 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:51:28,070 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:51:28,071 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-10-14 00:51:28,071 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:51:28,071 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-14 00:51:28,071 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:51:28,071 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:51:28,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:51:28,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:51:28,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-14 00:51:28,072 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:51:28,087 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-14 00:51:28,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:51:28,105 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:51:28,164 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:51:28,164 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 39 [2020-10-14 00:51:28,164 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:51:28,164 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 65 [2020-10-14 00:51:28,165 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:51:28,165 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:51:28,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 00:51:28,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 00:51:28,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-14 00:51:28,165 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:51:28,191 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-14 00:51:28,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:51:28,210 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:51:28,235 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:51:28,236 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 35 [2020-10-14 00:51:28,236 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:51:28,236 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-14 00:51:28,236 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:51:28,236 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:51:28,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:51:28,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 32 [2020-10-14 00:51:28,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:51:28,237 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:51:28,324 INFO L134 CoverageAnalysis]: Checked inductivity of 248 backedges. 156 proven. 33 refuted. 0 times theorem prover too weak. 59 trivial. 0 not checked. [2020-10-14 00:51:28,324 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1687516639] [2020-10-14 00:51:28,324 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 00:51:28,324 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-14 00:51:28,324 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1693284844] [2020-10-14 00:51:28,325 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 00:51:28,325 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 00:51:28,325 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 00:51:28,326 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-14 00:51:28,326 INFO L87 Difference]: Start difference. First operand 16382 states and 22169 transitions. Second operand 8 states. [2020-10-14 00:51:28,561 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2020-10-14 00:51:29,136 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2020-10-14 00:51:31,233 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-10-14 00:51:35,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 00:51:35,244 INFO L93 Difference]: Finished difference Result 74527 states and 113450 transitions. [2020-10-14 00:51:35,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-14 00:51:35,245 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 318 [2020-10-14 00:51:35,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 00:51:35,632 INFO L225 Difference]: With dead ends: 74527 [2020-10-14 00:51:35,632 INFO L226 Difference]: Without dead ends: 58151 [2020-10-14 00:51:35,712 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2020-10-14 00:51:35,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58151 states. [2020-10-14 00:51:38,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58151 to 57895. [2020-10-14 00:51:38,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57895 states. [2020-10-14 00:51:38,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57895 states to 57895 states and 83668 transitions. [2020-10-14 00:51:38,478 INFO L78 Accepts]: Start accepts. Automaton has 57895 states and 83668 transitions. Word has length 318 [2020-10-14 00:51:38,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 00:51:38,479 INFO L479 AbstractCegarLoop]: Abstraction has 57895 states and 83668 transitions. [2020-10-14 00:51:38,479 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 00:51:38,479 INFO L276 IsEmpty]: Start isEmpty. Operand 57895 states and 83668 transitions. [2020-10-14 00:51:38,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 326 [2020-10-14 00:51:38,659 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 00:51:38,659 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 00:51:38,659 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-14 00:51:38,660 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 00:51:38,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 00:51:38,660 INFO L82 PathProgramCache]: Analyzing trace with hash 552265210, now seen corresponding path program 1 times [2020-10-14 00:51:38,660 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 00:51:38,660 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1250999315] [2020-10-14 00:51:38,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 00:51:38,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:51:38,719 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:51:38,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:51:38,853 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:51:38,942 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:51:39,243 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:51:39,606 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:51:40,970 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:51:43,716 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:51:43,717 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 343 [2020-10-14 00:51:43,717 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-14 00:51:43,717 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5012 [2020-10-14 00:51:43,717 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:51:43,717 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:51:43,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 00:51:43,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 46 [2020-10-14 00:51:43,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-10-14 00:51:43,718 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:51:43,872 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-14 00:51:43,872 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 00:51:43,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:51:43,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:51:43,881 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:51:43,881 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 00:51:43,881 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:51:43,881 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 00:51:43,881 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:51:43,881 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:51:43,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:51:43,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:51:43,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:51:43,882 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:51:43,953 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 00:51:43,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:51:43,957 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:51:43,968 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:51:43,968 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 00:51:43,968 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:51:43,968 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-14 00:51:43,969 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:51:43,969 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:51:43,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:51:43,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:51:43,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:51:43,969 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:51:43,972 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-14 00:51:43,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:51:43,976 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:51:43,979 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:51:43,980 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 00:51:43,980 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:51:43,980 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 00:51:43,980 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:51:43,980 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:51:43,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:51:43,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:51:43,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:51:43,981 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:51:43,983 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-14 00:51:43,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:51:43,989 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:51:43,996 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:51:43,996 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 00:51:43,996 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:51:43,996 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 00:51:43,997 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:51:43,997 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:51:43,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:51:43,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:51:43,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 00:51:43,997 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:51:44,000 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-10-14 00:51:44,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:51:44,024 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:51:44,112 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:51:44,113 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 59 [2020-10-14 00:51:44,113 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:51:44,113 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 98 [2020-10-14 00:51:44,113 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:51:44,113 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:51:44,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 00:51:44,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 00:51:44,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-10-14 00:51:44,114 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:51:44,161 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2020-10-14 00:51:44,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:51:44,176 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:51:44,192 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:51:44,192 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 35 [2020-10-14 00:51:44,192 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:51:44,192 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-14 00:51:44,192 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:51:44,193 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:51:44,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:51:44,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 32 [2020-10-14 00:51:44,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:51:44,193 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:51:44,510 INFO L134 CoverageAnalysis]: Checked inductivity of 227 backedges. 150 proven. 33 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2020-10-14 00:51:44,510 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1250999315] [2020-10-14 00:51:44,510 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 00:51:44,511 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 00:51:44,511 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1450333019] [2020-10-14 00:51:44,511 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 00:51:44,511 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 00:51:44,512 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 00:51:44,512 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 00:51:44,512 INFO L87 Difference]: Start difference. First operand 57895 states and 83668 transitions. Second operand 7 states. [2020-10-14 00:51:44,640 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-10-14 00:51:46,939 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-10-14 00:51:47,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 00:51:47,910 INFO L93 Difference]: Finished difference Result 116482 states and 174187 transitions. [2020-10-14 00:51:47,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 00:51:47,911 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 325 [2020-10-14 00:51:47,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 00:51:48,275 INFO L225 Difference]: With dead ends: 116482 [2020-10-14 00:51:48,276 INFO L226 Difference]: Without dead ends: 58597 [2020-10-14 00:51:48,426 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 00:51:48,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58597 states. [2020-10-14 00:51:49,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58597 to 58103. [2020-10-14 00:51:49,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58103 states. [2020-10-14 00:51:52,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58103 states to 58103 states and 81762 transitions. [2020-10-14 00:51:52,414 INFO L78 Accepts]: Start accepts. Automaton has 58103 states and 81762 transitions. Word has length 325 [2020-10-14 00:51:52,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 00:51:52,415 INFO L479 AbstractCegarLoop]: Abstraction has 58103 states and 81762 transitions. [2020-10-14 00:51:52,415 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 00:51:52,415 INFO L276 IsEmpty]: Start isEmpty. Operand 58103 states and 81762 transitions. [2020-10-14 00:51:52,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 329 [2020-10-14 00:51:52,547 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 00:51:52,547 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 00:51:52,547 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-14 00:51:52,548 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 00:51:52,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 00:51:52,548 INFO L82 PathProgramCache]: Analyzing trace with hash -733947036, now seen corresponding path program 1 times [2020-10-14 00:51:52,549 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 00:51:52,549 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [424059936] [2020-10-14 00:51:52,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 00:51:52,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:51:52,640 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:51:52,783 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:51:54,582 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:51:57,220 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:51:57,220 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 342 [2020-10-14 00:51:57,221 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 00:51:57,221 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4610 [2020-10-14 00:51:57,221 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:51:57,221 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:51:57,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 00:51:57,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 45 [2020-10-14 00:51:57,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-10-14 00:51:57,222 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:51:57,380 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-14 00:51:57,380 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 00:51:57,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:51:57,384 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:51:57,387 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:51:57,388 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 00:51:57,388 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:51:57,388 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 00:51:57,388 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:51:57,388 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:51:57,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:51:57,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:51:57,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:51:57,389 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:51:57,461 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 00:51:57,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:51:57,477 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:51:57,505 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:51:57,506 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-10-14 00:51:57,506 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:51:57,506 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-14 00:51:57,506 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:51:57,506 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:51:57,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:51:57,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:51:57,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-10-14 00:51:57,507 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:51:57,516 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-14 00:51:57,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:51:57,541 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:51:57,629 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:51:57,629 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 59 [2020-10-14 00:51:57,630 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:51:57,630 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 99 [2020-10-14 00:51:57,630 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:51:57,630 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:51:57,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 00:51:57,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 00:51:57,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-10-14 00:51:57,630 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:51:57,675 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-10-14 00:51:57,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:51:57,693 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:51:57,709 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:51:57,710 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 35 [2020-10-14 00:51:57,710 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:51:57,710 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-14 00:51:57,710 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:51:57,710 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:51:57,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:51:57,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 32 [2020-10-14 00:51:57,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:51:57,711 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:51:57,801 INFO L134 CoverageAnalysis]: Checked inductivity of 221 backedges. 154 proven. 33 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2020-10-14 00:51:57,801 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [424059936] [2020-10-14 00:51:57,801 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 00:51:57,801 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 00:51:57,802 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [207396518] [2020-10-14 00:51:57,802 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 00:51:57,802 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 00:51:57,803 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 00:51:57,803 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 00:51:57,803 INFO L87 Difference]: Start difference. First operand 58103 states and 81762 transitions. Second operand 7 states. [2020-10-14 00:51:58,046 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2020-10-14 00:51:58,210 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 132 [2020-10-14 00:52:03,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 00:52:03,860 INFO L93 Difference]: Finished difference Result 156076 states and 235756 transitions. [2020-10-14 00:52:03,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 00:52:03,860 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 328 [2020-10-14 00:52:03,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 00:52:04,428 INFO L225 Difference]: With dead ends: 156076 [2020-10-14 00:52:04,428 INFO L226 Difference]: Without dead ends: 98219 [2020-10-14 00:52:04,589 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 00:52:04,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98219 states. [2020-10-14 00:52:06,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98219 to 95647. [2020-10-14 00:52:06,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 95647 states. [2020-10-14 00:52:10,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95647 states to 95647 states and 134222 transitions. [2020-10-14 00:52:10,383 INFO L78 Accepts]: Start accepts. Automaton has 95647 states and 134222 transitions. Word has length 328 [2020-10-14 00:52:10,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 00:52:10,384 INFO L479 AbstractCegarLoop]: Abstraction has 95647 states and 134222 transitions. [2020-10-14 00:52:10,384 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 00:52:10,384 INFO L276 IsEmpty]: Start isEmpty. Operand 95647 states and 134222 transitions. [2020-10-14 00:52:10,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 333 [2020-10-14 00:52:10,551 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 00:52:10,551 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 6, 6, 6, 6, 6, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 00:52:10,551 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-14 00:52:10,552 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 00:52:10,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 00:52:10,552 INFO L82 PathProgramCache]: Analyzing trace with hash -1461214664, now seen corresponding path program 1 times [2020-10-14 00:52:10,552 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 00:52:10,553 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [939533616] [2020-10-14 00:52:10,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 00:52:10,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:52:10,600 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:52:10,645 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:52:10,745 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:52:10,827 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:52:10,916 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:52:11,132 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:52:15,360 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:52:15,650 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:52:15,650 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 352 [2020-10-14 00:52:15,651 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-14 00:52:15,651 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5064 [2020-10-14 00:52:15,651 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:52:15,651 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:52:15,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 00:52:15,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 46 [2020-10-14 00:52:15,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-10-14 00:52:15,652 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:52:15,821 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-14 00:52:15,822 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 00:52:15,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:52:15,827 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:52:15,830 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:52:15,830 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 00:52:15,830 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:52:15,830 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 00:52:15,830 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:52:15,831 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:52:15,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:52:15,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:52:15,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:52:15,831 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:52:15,903 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 00:52:15,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:52:15,907 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:52:15,912 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:52:15,912 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 00:52:15,912 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:52:15,913 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 00:52:15,913 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:52:15,913 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:52:15,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:52:15,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:52:15,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:52:15,913 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:52:15,916 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-14 00:52:15,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:52:15,923 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:52:15,926 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:52:15,926 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 00:52:15,926 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:52:15,926 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 00:52:15,926 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:52:15,927 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:52:15,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:52:15,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:52:15,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:52:15,927 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:52:15,929 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-14 00:52:15,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:52:15,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:52:15,941 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:52:15,941 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 00:52:15,941 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:52:15,941 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 00:52:15,942 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:52:15,942 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:52:15,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:52:15,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:52:15,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 00:52:15,942 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:52:15,945 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-10-14 00:52:15,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:52:15,958 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:52:15,999 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:52:16,000 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-14 00:52:16,000 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:52:16,000 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-14 00:52:16,000 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:52:16,000 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:52:16,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 00:52:16,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 00:52:16,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-10-14 00:52:16,001 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:52:16,025 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-10-14 00:52:16,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:52:16,041 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:52:16,057 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:52:16,057 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 39 [2020-10-14 00:52:16,058 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:52:16,058 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-14 00:52:16,058 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:52:16,058 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:52:16,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:52:16,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 36 [2020-10-14 00:52:16,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:52:16,058 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:52:16,068 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-14 00:52:16,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:52:16,081 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:52:16,099 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:52:16,099 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 35 [2020-10-14 00:52:16,099 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:52:16,099 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-14 00:52:16,099 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:52:16,100 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:52:16,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:52:16,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 32 [2020-10-14 00:52:16,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:52:16,100 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:52:16,193 INFO L134 CoverageAnalysis]: Checked inductivity of 315 backedges. 166 proven. 50 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2020-10-14 00:52:16,193 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [939533616] [2020-10-14 00:52:16,193 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 00:52:16,193 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 00:52:16,193 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2032024331] [2020-10-14 00:52:16,194 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 00:52:16,194 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 00:52:16,194 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 00:52:16,194 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-14 00:52:16,195 INFO L87 Difference]: Start difference. First operand 95647 states and 134222 transitions. Second operand 7 states. [2020-10-14 00:52:16,450 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2020-10-14 00:52:17,319 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-10-14 00:52:20,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 00:52:20,929 INFO L93 Difference]: Finished difference Result 172397 states and 259995 transitions. [2020-10-14 00:52:20,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 00:52:20,930 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 332 [2020-10-14 00:52:20,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 00:52:21,336 INFO L225 Difference]: With dead ends: 172397 [2020-10-14 00:52:21,336 INFO L226 Difference]: Without dead ends: 76981 [2020-10-14 00:52:21,559 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-10-14 00:52:21,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76981 states. [2020-10-14 00:52:23,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76981 to 72583. [2020-10-14 00:52:23,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72583 states. [2020-10-14 00:52:23,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72583 states to 72583 states and 98053 transitions. [2020-10-14 00:52:23,325 INFO L78 Accepts]: Start accepts. Automaton has 72583 states and 98053 transitions. Word has length 332 [2020-10-14 00:52:23,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 00:52:23,325 INFO L479 AbstractCegarLoop]: Abstraction has 72583 states and 98053 transitions. [2020-10-14 00:52:23,325 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 00:52:23,325 INFO L276 IsEmpty]: Start isEmpty. Operand 72583 states and 98053 transitions. [2020-10-14 00:52:23,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 345 [2020-10-14 00:52:23,454 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 00:52:23,454 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 00:52:23,454 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-14 00:52:23,454 INFO L427 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 00:52:23,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 00:52:23,455 INFO L82 PathProgramCache]: Analyzing trace with hash 1573061713, now seen corresponding path program 1 times [2020-10-14 00:52:23,455 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 00:52:23,455 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1243773720] [2020-10-14 00:52:23,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 00:52:23,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:52:23,562 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:52:23,639 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:52:23,745 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:52:26,299 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:52:28,528 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:52:28,528 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 358 [2020-10-14 00:52:28,529 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 00:52:28,529 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-10-14 00:52:28,529 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:52:28,529 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:52:28,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 00:52:28,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-10-14 00:52:28,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 98 [2020-10-14 00:52:28,529 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:52:28,685 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-14 00:52:28,685 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 00:52:28,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:52:28,695 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:52:28,698 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:52:28,699 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 00:52:28,699 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:52:28,699 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 00:52:28,699 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:52:28,699 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:52:28,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:52:28,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:52:28,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:52:28,699 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:52:29,029 WARN L193 SmtUtils]: Spent 321.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-10-14 00:52:29,030 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 00:52:29,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:52:29,040 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:52:29,050 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:52:29,050 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 00:52:29,051 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:52:29,051 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-14 00:52:29,051 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:52:29,051 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:52:29,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:52:29,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:52:29,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 00:52:29,051 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:52:29,055 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-14 00:52:29,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:52:29,091 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:52:29,229 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:52:29,229 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-10-14 00:52:29,229 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:52:29,229 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 153 [2020-10-14 00:52:29,229 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:52:29,229 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:52:29,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 00:52:29,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 00:52:29,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 98 [2020-10-14 00:52:29,230 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:52:29,408 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-10-14 00:52:29,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:52:29,423 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:52:29,438 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:52:29,439 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 35 [2020-10-14 00:52:29,439 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:52:29,439 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-14 00:52:29,439 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:52:29,439 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:52:29,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:52:29,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 32 [2020-10-14 00:52:29,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:52:29,440 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:52:29,632 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 145 proven. 33 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-10-14 00:52:29,632 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1243773720] [2020-10-14 00:52:29,633 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 00:52:29,633 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 00:52:29,633 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1096985141] [2020-10-14 00:52:29,633 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 00:52:29,634 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 00:52:29,634 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 00:52:29,634 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-10-14 00:52:29,634 INFO L87 Difference]: Start difference. First operand 72583 states and 98053 transitions. Second operand 7 states. [2020-10-14 00:52:29,872 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 128 [2020-10-14 00:52:30,662 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2020-10-14 00:52:33,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 00:52:33,793 INFO L93 Difference]: Finished difference Result 163034 states and 245701 transitions. [2020-10-14 00:52:33,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 00:52:33,793 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 344 [2020-10-14 00:52:33,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 00:52:34,208 INFO L225 Difference]: With dead ends: 163034 [2020-10-14 00:52:34,208 INFO L226 Difference]: Without dead ends: 92589 [2020-10-14 00:52:34,341 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2020-10-14 00:52:34,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92589 states. [2020-10-14 00:52:36,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92589 to 89300. [2020-10-14 00:52:36,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 89300 states. [2020-10-14 00:52:36,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89300 states to 89300 states and 119716 transitions. [2020-10-14 00:52:36,986 INFO L78 Accepts]: Start accepts. Automaton has 89300 states and 119716 transitions. Word has length 344 [2020-10-14 00:52:36,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 00:52:36,986 INFO L479 AbstractCegarLoop]: Abstraction has 89300 states and 119716 transitions. [2020-10-14 00:52:36,986 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 00:52:36,986 INFO L276 IsEmpty]: Start isEmpty. Operand 89300 states and 119716 transitions. [2020-10-14 00:52:37,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 353 [2020-10-14 00:52:37,142 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 00:52:37,142 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 00:52:37,142 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-14 00:52:37,142 INFO L427 AbstractCegarLoop]: === Iteration 14 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 00:52:37,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 00:52:37,143 INFO L82 PathProgramCache]: Analyzing trace with hash 298468171, now seen corresponding path program 1 times [2020-10-14 00:52:37,143 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 00:52:37,143 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1337482832] [2020-10-14 00:52:37,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 00:52:37,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:52:37,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:52:37,247 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:52:37,347 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:52:37,437 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:52:37,532 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:52:40,170 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:52:41,123 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:52:42,223 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:52:42,223 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 372 [2020-10-14 00:52:42,223 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-14 00:52:42,223 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5042 [2020-10-14 00:52:42,223 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:52:42,223 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:52:42,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 00:52:42,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 65 [2020-10-14 00:52:42,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-14 00:52:42,224 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:52:42,368 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-14 00:52:42,369 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 00:52:42,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:52:42,374 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:52:42,378 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:52:42,378 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 00:52:42,378 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:52:42,378 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 00:52:42,379 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:52:42,379 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:52:42,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:52:42,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:52:42,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:52:42,379 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:52:42,452 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 00:52:42,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:52:42,456 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:52:42,461 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:52:42,461 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 00:52:42,461 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:52:42,461 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 00:52:42,461 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:52:42,462 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:52:42,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:52:42,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:52:42,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:52:42,462 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:52:42,465 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-14 00:52:42,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:52:42,467 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:52:42,473 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:52:42,473 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-14 00:52:42,473 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:52:42,473 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 00:52:42,474 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:52:42,474 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:52:42,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:52:42,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:52:42,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:52:42,474 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:52:42,478 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-14 00:52:42,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:52:42,488 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:52:42,506 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:52:42,506 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-14 00:52:42,507 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:52:42,507 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-14 00:52:42,507 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:52:42,507 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:52:42,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:52:42,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:52:42,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-14 00:52:42,507 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:52:42,514 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-14 00:52:42,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:52:42,526 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:52:42,569 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:52:42,569 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-14 00:52:42,569 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:52:42,570 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-10-14 00:52:42,570 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:52:42,570 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:52:42,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 00:52:42,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 00:52:42,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-10-14 00:52:42,570 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:52:42,593 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-14 00:52:42,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:52:42,614 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:52:42,632 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:52:42,632 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 39 [2020-10-14 00:52:42,632 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:52:42,632 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-14 00:52:42,632 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:52:42,633 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:52:42,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:52:42,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 36 [2020-10-14 00:52:42,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:52:42,633 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:52:42,642 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-10-14 00:52:42,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:52:42,656 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:52:42,670 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:52:42,670 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 35 [2020-10-14 00:52:42,670 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:52:42,670 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-14 00:52:42,670 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:52:42,670 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:52:42,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:52:42,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 32 [2020-10-14 00:52:42,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:52:42,671 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:52:43,188 INFO L134 CoverageAnalysis]: Checked inductivity of 409 backedges. 206 proven. 50 refuted. 0 times theorem prover too weak. 153 trivial. 0 not checked. [2020-10-14 00:52:43,188 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1337482832] [2020-10-14 00:52:43,188 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 00:52:43,189 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 00:52:43,189 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1560453510] [2020-10-14 00:52:43,189 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 00:52:43,189 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 00:52:43,189 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 00:52:43,190 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 00:52:43,190 INFO L87 Difference]: Start difference. First operand 89300 states and 119716 transitions. Second operand 7 states. [2020-10-14 00:52:43,403 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2020-10-14 00:52:44,229 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2020-10-14 00:52:48,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 00:52:48,353 INFO L93 Difference]: Finished difference Result 207062 states and 304441 transitions. [2020-10-14 00:52:48,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 00:52:48,354 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 352 [2020-10-14 00:52:48,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 00:52:48,925 INFO L225 Difference]: With dead ends: 207062 [2020-10-14 00:52:48,925 INFO L226 Difference]: Without dead ends: 117784 [2020-10-14 00:52:49,099 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-14 00:52:49,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117784 states. [2020-10-14 00:52:51,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117784 to 110203. [2020-10-14 00:52:51,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 110203 states. [2020-10-14 00:52:52,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110203 states to 110203 states and 149338 transitions. [2020-10-14 00:52:52,095 INFO L78 Accepts]: Start accepts. Automaton has 110203 states and 149338 transitions. Word has length 352 [2020-10-14 00:52:52,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 00:52:52,096 INFO L479 AbstractCegarLoop]: Abstraction has 110203 states and 149338 transitions. [2020-10-14 00:52:52,096 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 00:52:52,096 INFO L276 IsEmpty]: Start isEmpty. Operand 110203 states and 149338 transitions. [2020-10-14 00:52:55,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 367 [2020-10-14 00:52:55,427 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 00:52:55,428 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 00:52:55,428 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-14 00:52:55,428 INFO L427 AbstractCegarLoop]: === Iteration 15 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 00:52:55,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 00:52:55,429 INFO L82 PathProgramCache]: Analyzing trace with hash 1481447823, now seen corresponding path program 1 times [2020-10-14 00:52:55,429 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 00:52:55,429 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1559005243] [2020-10-14 00:52:55,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 00:52:55,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:52:55,492 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:52:55,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:52:55,704 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:52:57,134 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:52:58,765 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:53:00,480 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:53:00,481 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 384 [2020-10-14 00:53:00,481 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 00:53:00,481 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5008 [2020-10-14 00:53:00,481 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:53:00,481 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:53:00,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 00:53:00,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 87 [2020-10-14 00:53:00,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-10-14 00:53:00,481 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:53:00,651 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-14 00:53:00,652 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 00:53:00,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:53:00,655 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:53:00,659 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:53:00,659 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 00:53:00,659 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:53:00,659 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 00:53:00,659 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:53:00,659 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:53:00,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:53:00,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:53:00,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:53:00,660 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:53:00,730 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 00:53:00,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:53:00,734 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:53:00,739 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:53:00,739 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 00:53:00,739 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:53:00,739 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 00:53:00,739 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:53:00,739 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:53:00,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:53:00,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:53:00,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:53:00,740 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:53:00,743 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-14 00:53:00,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:53:00,746 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:53:00,752 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:53:00,752 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-14 00:53:00,752 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:53:00,753 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 00:53:00,753 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:53:00,753 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:53:00,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:53:00,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:53:00,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:53:00,753 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:53:00,757 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-14 00:53:00,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:53:00,775 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:53:00,877 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:53:00,877 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-14 00:53:00,877 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:53:00,877 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 109 [2020-10-14 00:53:00,877 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:53:00,878 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:53:00,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:53:00,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:53:00,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 40 [2020-10-14 00:53:00,878 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:53:00,889 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-14 00:53:00,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:53:00,912 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:53:00,995 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:53:00,996 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 59 [2020-10-14 00:53:00,996 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:53:00,996 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 92 [2020-10-14 00:53:00,996 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:53:00,996 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:53:00,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 00:53:00,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 00:53:00,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-10-14 00:53:00,997 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:53:01,039 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-10-14 00:53:01,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:53:01,054 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:53:01,070 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:53:01,070 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 35 [2020-10-14 00:53:01,071 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:53:01,071 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-14 00:53:01,071 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:53:01,071 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:53:01,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:53:01,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 32 [2020-10-14 00:53:01,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:53:01,071 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:53:01,185 INFO L134 CoverageAnalysis]: Checked inductivity of 359 backedges. 236 proven. 33 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2020-10-14 00:53:01,185 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1559005243] [2020-10-14 00:53:01,186 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 00:53:01,186 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 00:53:01,186 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [442121189] [2020-10-14 00:53:01,187 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 00:53:01,187 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 00:53:01,187 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 00:53:01,187 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 00:53:01,187 INFO L87 Difference]: Start difference. First operand 110203 states and 149338 transitions. Second operand 7 states. [2020-10-14 00:53:01,613 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-10-14 00:53:02,194 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 131 [2020-10-14 00:53:06,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 00:53:06,668 INFO L93 Difference]: Finished difference Result 226765 states and 331375 transitions. [2020-10-14 00:53:06,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 00:53:06,668 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 366 [2020-10-14 00:53:06,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 00:53:07,360 INFO L225 Difference]: With dead ends: 226765 [2020-10-14 00:53:07,361 INFO L226 Difference]: Without dead ends: 119339 [2020-10-14 00:53:07,534 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 00:53:07,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119339 states. [2020-10-14 00:53:09,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119339 to 115827. [2020-10-14 00:53:09,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 115827 states. [2020-10-14 00:53:10,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115827 states to 115827 states and 155621 transitions. [2020-10-14 00:53:10,164 INFO L78 Accepts]: Start accepts. Automaton has 115827 states and 155621 transitions. Word has length 366 [2020-10-14 00:53:10,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 00:53:10,164 INFO L479 AbstractCegarLoop]: Abstraction has 115827 states and 155621 transitions. [2020-10-14 00:53:10,164 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 00:53:10,164 INFO L276 IsEmpty]: Start isEmpty. Operand 115827 states and 155621 transitions. [2020-10-14 00:53:10,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 365 [2020-10-14 00:53:10,382 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 00:53:10,382 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 00:53:10,382 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-14 00:53:10,383 INFO L427 AbstractCegarLoop]: === Iteration 16 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 00:53:10,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 00:53:10,383 INFO L82 PathProgramCache]: Analyzing trace with hash 2102081698, now seen corresponding path program 1 times [2020-10-14 00:53:10,383 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 00:53:10,383 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [863305725] [2020-10-14 00:53:10,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 00:53:10,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:53:10,502 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:53:10,634 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:53:10,753 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:53:13,136 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:53:13,617 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:53:15,473 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:53:15,473 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 378 [2020-10-14 00:53:15,473 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 00:53:15,473 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5019 [2020-10-14 00:53:15,474 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:53:15,474 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:53:15,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 00:53:15,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 140 [2020-10-14 00:53:15,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-10-14 00:53:15,474 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:53:15,639 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-14 00:53:15,640 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 00:53:15,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:53:15,643 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:53:15,646 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:53:15,646 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 00:53:15,646 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:53:15,646 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 00:53:15,646 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:53:15,647 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:53:15,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:53:15,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:53:15,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:53:15,647 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:53:15,716 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 00:53:15,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:53:15,721 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:53:15,737 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:53:15,737 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-14 00:53:15,737 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:53:15,737 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-14 00:53:15,738 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:53:15,738 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:53:15,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:53:15,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:53:15,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:53:15,739 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:53:15,749 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-10-14 00:53:15,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:53:15,792 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:53:15,923 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:53:15,924 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-10-14 00:53:15,924 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:53:15,924 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 153 [2020-10-14 00:53:15,924 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:53:15,925 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:53:15,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:53:15,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:53:15,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 91 [2020-10-14 00:53:15,925 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:53:15,984 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-10-14 00:53:16,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:53:16,013 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:53:16,115 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:53:16,115 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 35 [2020-10-14 00:53:16,116 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:53:16,116 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 112 [2020-10-14 00:53:16,116 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:53:16,117 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:53:16,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 00:53:16,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 00:53:16,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-14 00:53:16,118 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:53:16,335 INFO L134 CoverageAnalysis]: Checked inductivity of 250 backedges. 217 proven. 2 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2020-10-14 00:53:16,336 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [863305725] [2020-10-14 00:53:16,336 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 00:53:16,336 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 00:53:16,336 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1640633536] [2020-10-14 00:53:16,337 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 00:53:16,337 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 00:53:16,337 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 00:53:16,337 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-14 00:53:16,338 INFO L87 Difference]: Start difference. First operand 115827 states and 155621 transitions. Second operand 7 states. [2020-10-14 00:53:17,517 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-10-14 00:53:27,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 00:53:27,525 INFO L93 Difference]: Finished difference Result 289745 states and 471858 transitions. [2020-10-14 00:53:27,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 00:53:27,526 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 364 [2020-10-14 00:53:27,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 00:53:28,852 INFO L225 Difference]: With dead ends: 289745 [2020-10-14 00:53:28,853 INFO L226 Difference]: Without dead ends: 194564 [2020-10-14 00:53:29,082 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2020-10-14 00:53:29,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194564 states.